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90 Commits

Author SHA1 Message Date
Tom Pipinic 6b4fa3d63b AsUrlFriendly extension added
2 years ago
Tom Pipinic 43312c3362 AsUrlFriendly extension added
2 years ago
Matija Koželj c53cbe0096 Add local nuget push to remaining projects
2 years ago
Matija Koželj 6d6ca3f633 Add local nuget package push to projects
2 years ago
Matija Koželj f989b59330 Add nuget local push to additional projects
2 years ago
Matija Koželj db4fd905a2 Add nuget local repo upload to Connected.Data
2 years ago
Matija Koželj ed9f31df1f [WIP] Add additional check to entities list
2 years ago
Matija Koželj 018a48dd65 [WIP] Add debug output of entities
2 years ago
Matija Koželj 9381a4e4c6 Add local nuget push to Connected.Interop
2 years ago
Matija Koželj 93b39c97a7 Add nuget local uploads to Connected.Entities
2 years ago
Matija Koželj 379d31dbfd Add package upload to Connected.Caching
2 years ago
Matija Koželj be2134313a Updated nuget.config to include local source
2 years ago
Matija Koželj 4ba5b64f66 Fix ReturnValueBinder taking existing value from operation instead of entity
2 years ago
Matija Koželj 1195fa1b7e Fix type conversion in ReturnValueBinder
2 years ago
Matija Koželj 5f48a06413 Replace early returns with continues in ReturnValueBinder
2 years ago
Matija Koželj 38d8781734 Remove redundant operation parameter binding
2 years ago
Matija Koželj ae0131086e Fix ReturnValueBinder iterating through Operation properties instead
2 years ago
Matija Koželj 57a4f2fb05 Rewrite ReturnValueBinder to properly bind return values
2 years ago
Matija Koželj d92f0a6f82 Fix CommandBuilder not appending output parameters on cached command
2 years ago
Matija Koželj ccd824dcc3 Fix EntityStorage parameter binding
2 years ago
Matija Koželj 339dc635e5 Add clone method to EntityExtensions
2 years ago
Matija Koželj 9209bada7a Fix cached command builder
2 years ago
Matija Koželj 5b0537a04a Pass base configuration to WebApplication Instance builder
2 years ago
Matija Koželj 8fe51a15d5 Add IConfiguration constructors to Storage and Endpoint configuration
2 years ago
Matija Koželj d2d1f66cf6 [WIP] Switch configuration service to use standard configuration stores
2 years ago
Matija Koželj c9bb863108 Merge branch 'features/nuget_autobuild' of https://git.tompit.com/Connected/Connected.Framework into features/nuget_autobuild
2 years ago
Matija Koželj caacc27fd2 Fix package reference version in Connected.Rest.csproj
2 years ago
Matija Koželj 41f52d0b87 Convert OnInitialize stub to use standard IConfiguration for initialization
2 years ago
Matija Koželj 90cc4e7ca6 Convert dictionary initialization to standard initialization
2 years ago
Matija Koželj 25f1563ef5 Convert dictionary initialization to standard IConfig initialization
2 years ago
Matija Koželj 399cee2eac Add Connected.Framework parent package
2 years ago
Matija Koželj 7903031fcc Remove Dependencies folder
2 years ago
Matija Koželj d9ed50ef20 Add automatic nuget build to Conencted.Instance
2 years ago
Matija Koželj 00a1cb9826 Add automatic nuget build to Connected.Services
2 years ago
Matija Koželj ce7106af32 Add automatic nuget build to Connected.Data
2 years ago
Matija Koželj 25701aa001 Add automatic nuget build to Connected.Expressions
2 years ago
Matija Koželj ee15df00a4 Add automatic nuget build to Connected.Entities
2 years ago
Matija Koželj 070040a1d3 Add automatic nuget build to Connected.Caching
2 years ago
Matija Koželj 7ec3818c1c Add automatic nuget build to Connected.Notifications
2 years ago
Matija Koželj 615db818bc Add automatic nuget build to Connected.Rest
2 years ago
Matija Koželj 31514d59c6 Add automatic nuget build to Connected.Net
2 years ago
Matija Koželj 371845f8ae Add automatic nuget build to Connected.Validation
2 years ago
Matija Koželj 6a66d51092 Add automatic nuget build to Connected.Security
2 years ago
Matija Koželj 22ad8ee6fc Add automatic nuget build to Connected.Middleware
2 years ago
Matija Koželj 34480447f1 Add automatic nuget build to Connected.Hosting
2 years ago
Matija Koželj e9abfeef48 Add automatic nuget build to Connected.Globalization
2 years ago
Matija Koželj 7009cf468a Add automatic nuget build to Connected.Collections
2 years ago
Matija Koželj be7c2e3afe Add automatic nuget build to Connected.Configuration
2 years ago
Matija Koželj 894767e65b Add automatic nuget build to Connected.Interop
2 years ago
Matija Koželj 29e6c54550 Add automatic nuget build to Connected.Threading
2 years ago
Matija Koželj 8643659c80 Add automatic nuget build to Connected.Runtime
2 years ago
Matija Koželj dbcec2f299 Convert OnInitialize stub to use standard IConfiguration for initialization
2 years ago
Matija Koželj fea7b6af42 Convert dictionary initialization to standard initialization
2 years ago
Matija Koželj 1a34c7b4c4 Convert dictionary initialization to standard IConfig initialization
2 years ago
Matija Koželj f8b0ca332b Merge pull request 'PropertyAggregationBug' (#5) from PropertyAggregationBug into develop
2 years ago
Tom Pipinic a5fb32fa75 Property aggregation bug fix
2 years ago
Tom Pipinic a3e3bd7d85 Updated references
2 years ago
Mihael Ocvirk cb526d400c Merge pull request 'Fix ResolveSingle not awaited' (#4) from bugfixes/connectionProvider into develop
2 years ago
ocm-tompit ab1ee48396 Fix ResolveSingle not awaited
2 years ago
Matija Koželj 91c7035162 Add Connected.Framework parent package
2 years ago
Matija Koželj cf345ce467 Remove Dependencies folder
2 years ago
Matija Koželj 81ae64a7c8 Add automatic nuget build to Conencted.Instance
2 years ago
Matija Koželj b04db19170 Add automatic nuget build to Connected.Services
2 years ago
Matija Koželj cc6f5461e5 Add automatic nuget build to Connected.Data
2 years ago
Matija Koželj 8dff41e4c0 Add automatic nuget build to Connected.Expressions
2 years ago
Matija Koželj 0d5cf05ab4 Add automatic nuget build to Connected.Entities
2 years ago
Matija Koželj ad7b14773a Add automatic nuget build to Connected.Caching
2 years ago
Matija Koželj 33b89eb696 Add automatic nuget build to Connected.Notifications
2 years ago
Matija Koželj 1e17b9dcb5 Add automatic nuget build to Connected.Rest
2 years ago
Matija Koželj 0fde9d5425 Add automatic nuget build to Connected.Net
2 years ago
Matija Koželj ed6368250a Add automatic nuget build to Connected.Validation
2 years ago
Matija Koželj 11e1d14fcf Add automatic nuget build to Connected.Security
2 years ago
Matija Koželj ab4765ae0a Add automatic nuget build to Connected.Middleware
2 years ago
Matija Koželj fcbdc0b392 Add automatic nuget build to Connected.Hosting
2 years ago
Matija Koželj 0e0399c7d9 Add automatic nuget build to Connected.Globalization
2 years ago
Matija Koželj 2d796505b7 Add automatic nuget build to Connected.Collections
2 years ago
Matija Koželj 1fd296a021 Add automatic nuget build to Connected.Configuration
2 years ago
Matija Koželj f19f3f5833 Add automatic nuget build to Connected.Interop
2 years ago
Matija Koželj d545bc2ded Add automatic nuget build to Connected.Threading
2 years ago
Matija Koželj ceb24fc3dc Add automatic nuget build to Connected.Runtime
2 years ago
Tom Pipinic 3890d27d7f Property aggregation bug fix
2 years ago
Tom Pipinic 7bf99a7390 Updated references
2 years ago
Matija Koželj 6653fd2768 Merge pull request 'moved to src folder' (#3) from NamespaceRenaming into develop
2 years ago
Matija Koželj 491459236b Merge branch 'develop' into NamespaceRenaming
2 years ago
Tom Pipinic da38776ebb moved to src folder
2 years ago
Matija Koželj 202f11a500 Merge pull request 'Namespace rename' (#1) from NamespaceRenaming into develop
2 years ago
Tom Pipinic fece29b071 Refactor namespaces
2 years ago
Tom Pipinic 570d990a94 Namespace rename
2 years ago
Matija Koželj d7b0a471f0 Rebase with github repository
2 years ago
Matija Koželj e38eb7aa1c Initial commit
2 years ago

@ -0,0 +1,226 @@
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GNU AFFERO GENERAL PUBLIC LICENSE
Version 3, 19 November 2007
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The GNU Affero General Public License is a free, copyleft license for
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available, or (2) arrange to deprive yourself of the benefit of the
patent license for this particular work, or (3) arrange, in a manner
consistent with the requirements of this License, to extend the patent
license to downstream recipients. "Knowingly relying" means you have
actual knowledge that, but for the patent license, your conveying the
covered work in a country, or your recipient's use of the covered work
in a country, would infringe one or more identifiable patents in that
country that you have reason to believe are valid.
If, pursuant to or in connection with a single transaction or
arrangement, you convey, or propagate by procuring conveyance of, a
covered work, and grant a patent license to some of the parties
receiving the covered work authorizing them to use, propagate, modify
or convey a specific copy of the covered work, then the patent license
you grant is automatically extended to all recipients of the covered
work and works based on it.
A patent license is "discriminatory" if it does not include within
the scope of its coverage, prohibits the exercise of, or is
conditioned on the non-exercise of one or more of the rights that are
specifically granted under this License. You may not convey a covered
work if you are a party to an arrangement with a third party that is
in the business of distributing software, under which you make payment
to the third party based on the extent of your activity of conveying
the work, and under which the third party grants, to any of the
parties who would receive the covered work from you, a discriminatory
patent license (a) in connection with copies of the covered work
conveyed by you (or copies made from those copies), or (b) primarily
for and in connection with specific products or compilations that
contain the covered work, unless you entered into that arrangement,
or that patent license was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.
12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot convey a
covered work so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you may
not convey it at all. For example, if you agree to terms that obligate you
to collect a royalty for further conveying from those to whom you convey
the Program, the only way you could satisfy both those terms and this
License would be to refrain entirely from conveying the Program.
13. Remote Network Interaction; Use with the GNU General Public License.
Notwithstanding any other provision of this License, if you modify the
Program, your modified version must prominently offer all users
interacting with it remotely through a computer network (if your version
supports such interaction) an opportunity to receive the Corresponding
Source of your version by providing access to the Corresponding Source
from a network server at no charge, through some standard or customary
means of facilitating copying of software. This Corresponding Source
shall include the Corresponding Source for any work covered by version 3
of the GNU General Public License that is incorporated pursuant to the
following paragraph.
Notwithstanding any other provision of this License, you have
permission to link or combine any covered work with a work licensed
under version 3 of the GNU General Public License into a single
combined work, and to convey the resulting work. The terms of this
License will continue to apply to the part which is the covered work,
but the work with which it is combined will remain governed by version
3 of the GNU General Public License.
14. Revised Versions of this License.
The Free Software Foundation may publish revised and/or new versions of
the GNU Affero General Public License from time to time. Such new versions
will be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the
Program specifies that a certain numbered version of the GNU Affero General
Public License "or any later version" applies to it, you have the
option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation. If the Program does not specify a version number of the
GNU Affero General Public License, you may choose any version ever published
by the Free Software Foundation.
If the Program specifies that a proxy can decide which future
versions of the GNU Affero General Public License can be used, that proxy's
public statement of acceptance of a version permanently authorizes you
to choose that version for the Program.
Later license versions may give you additional or different
permissions. However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.
15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If your software can interact with users remotely through a computer
network, you should also make sure that it provides a way for users to
get its source. For example, if your program is a web application, its
interface could display a "Source" link that leads users to an archive
of the code. There are many ways you could offer source, and different
solutions will be better for different programs; see section 13 for the
specific requirements.
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU AGPL, see
<https://www.gnu.org/licenses/>.

@ -0,0 +1,20 @@
dotnet build ../src/Connected.Runtime/Connected.Runtime.csproj
dotnet build ../src/Connected.Configuration/Connected.Configuration.csproj
dotnet build ../src/Connected.Threading/Connected.Threading.csproj
dotnet build ../src/Connected.Interop/Connected.Interop.csproj
dotnet build ../src/Connected.Hosting/Connected.Hosting.csproj
dotnet build ../src/Connected.Globalization/Connected.Globalization.csproj
dotnet build ../src/Connected.Collections/Connected.Collections.csproj
dotnet build ../src/Connected.Middleware/Connected.Middleware.csproj
dotnet build ../src/Connected.Security/Connected.Security.csproj
dotnet build ../src/Connected.Validation/Connected.Validation.csproj
dotnet build ../src/Connected.Net/Connected.Net.csproj
dotnet build ../src/Connected.Notifications/Connected.Notifications.csproj
dotnet build ../src/Connected.Caching/Connected.Caching.csproj
dotnet build ../src/Connected.Entities/Connected.Entities.csproj
dotnet build ../src/Connected.Expressions/Connected.Expressions.csproj
dotnet build ../src/Connected.Data/Connected.Data.csproj
dotnet build ../src/Connected.Services/Connected.Services.csproj
dotnet build ../src/Connected.Rest/Connected.Rest.csproj
dotnet build ../src/Connected.Instance/Connected.Instance.csproj
dotnet build ../src/Connected.Framework/Connected.Framework.csproj

@ -0,0 +1,17 @@
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<config>
<add key="repositoryPath" value="%PACKAGEHOME%/External" />
</config>
<packageRestore>
<add key="enabled" value="True" />
<add key="automatic" value="True" />
</packageRestore>
<packageSources>
<add key="NuGet official package source" value="https://api.nuget.org/v3/index.json" />
<add key="LocalNugetServer" value="%LOCAL_NUGET_SERVER%" />
<add key="Local file repository" value="%LOCAL_NUGET%" />
</packageSources>
<disabledPackageSources />
</configuration>

@ -0,0 +1,6 @@
namespace Connected.Caching.Annotations;
[AttributeUsage(AttributeTargets.Property)]
public sealed class CacheKeyAttribute : Attribute
{
}

@ -0,0 +1,432 @@
using System.Collections.Concurrent;
using System.Collections.Immutable;
using Connected.Interop;
namespace Connected.Caching;
internal abstract class Cache : ICache
{
private bool _disposedValue;
private readonly ConcurrentDictionary<string, Entries> _items;
private readonly Task _scavenger;
private readonly CancellationTokenSource _cancel = new();
public event CacheInvalidateHandler? Invalidating;
public event CacheInvalidateHandler? Invalidated;
public Cache()
{
_scavenger = new Task(OnScaveging, _cancel.Token, TaskCreationOptions.LongRunning);
_items = new ConcurrentDictionary<string, Entries>();
_scavenger.Start();
}
private ConcurrentDictionary<string, Entries> Items => _items;
private CancellationTokenSource Cancel => _cancel;
private void OnScaveging()
{
var token = Cancel.Token;
while (!token.IsCancellationRequested)
{
try
{
foreach (var i in Items)
i.Value.Scave();
var empties = Items.Where(f => f.Value.Count == 0).Select(f => f.Key);
foreach (var i in empties)
Items.TryRemove(i, out _);
token.WaitHandle.WaitOne(TimeSpan.FromMinutes(1));
}
catch { }
}
}
public virtual bool IsEmpty(string key)
{
if (Items.TryGetValue(key, out Entries? value))
return value.Any();
return true;
}
public virtual bool Exists(string key)
{
return Items.ContainsKey(key);
}
public void CreateKey(string key)
{
if (Exists(key))
return;
Items.TryAdd(key, new Entries());
}
public IEnumerator<T>? GetEnumerator<T>(string key)
{
if (Items.TryGetValue(key, out Entries? value))
return value.GetEnumerator<T>();
return new List<T>().GetEnumerator();
}
public virtual ImmutableList<T>? All<T>(string key)
{
if (Items.TryGetValue(key, out Entries? value))
return value.All<T>();
return default;
}
public int Count(string key)
{
if (Items.TryGetValue(key, out Entries? value))
return value.Count;
return 0;
}
public virtual T? Get<T>(string key, Func<T, bool> predicate)
{
if (Items.TryGetValue(key, out Entries? value) && value.Get(predicate) is IEntry entry)
return GetValue<T>(entry);
return default;
}
public virtual async Task<T?> Get<T>(string key, Func<T, bool> predicate, Func<EntryOptions, Task<T>> retrieve)
{
if (Items.TryGetValue(key, out Entries? value) && value.Get(predicate) is IEntry entry)
return GetValue<T>(entry);
if (retrieve is null)
return default;
var options = new EntryOptions();
T instance = await retrieve(options);
if (EqualityComparer<T>.Default.Equals(instance, default))
{
if (!options.AllowNull)
return default;
}
if (string.IsNullOrWhiteSpace(options.Key))
throw new SysException(this, SR.ErrCacheKeyNull);
Set(key, options.Key, instance, options.Duration, options.SlidingExpiration);
return instance;
}
public virtual async Task<T?> Get<T>(string key, object id, Func<EntryOptions, Task<T>>? retrieve)
{
if (Items.TryGetValue(key, out Entries? value) && value.Get(id is null ? null : id.ToString()) is IEntry entry)
return GetValue<T>(entry);
if (retrieve is null)
return default;
var options = new EntryOptions
{
Key = id is null ? null : id.ToString()
};
T instance = await retrieve(options);
if (EqualityComparer<T>.Default.Equals(instance, default))
{
if (!options.AllowNull)
return default;
}
Set(key, options.Key, instance, options.Duration, options.SlidingExpiration);
return instance;
}
internal void ClearCore(string key)
{
if (Items.TryGetValue(key, out Entries? value))
value.Clear();
}
public virtual async Task Clear(string key)
{
if (Items.TryGetValue(key, out Entries? value))
value.Clear();
await Task.CompletedTask;
}
public virtual T? Get<T>(string key, object id)
{
if (Items.TryGetValue(key, out Entries? value) && value.Get(id is null ? null : id.ToString()) is IEntry entry)
return GetValue<T>(entry);
return default;
}
public IEntry? Get(string key, object id)
{
if (Items.TryGetValue(key, out Entries? value))
return value.Get(id is null ? null : id.ToString());
return default;
}
public virtual T? Get<T>(string key, Func<dynamic, bool> predicate)
{
if (Items.TryGetValue(key, out Entries? value) && value.Get(predicate) is IEntry entry)
return GetValue<T>(entry);
return default;
}
public virtual T? First<T>(string key)
{
if (Items.TryGetValue(key, out Entries? value) && value.First() is IEntry entry)
return GetValue<T>(entry);
return default;
}
public virtual ImmutableList<T>? Where<T>(string key, Func<T, bool> predicate)
{
if (Items.TryGetValue(key, out Entries? value))
return value.Where(predicate);
return default;
}
public void CopyTo(string key, object id, IEntry instance)
{
if (!Items.TryGetValue(key, out Entries? value))
{
value = new Entries();
if (!Items.TryAdd(key, value))
return;
}
value.Set(id is null ? null : id.ToString(), instance.Instance, instance.Duration, instance.SlidingExpiration);
}
public virtual T? Set<T>(string key, object id, T? instance)
{
return Set(key, id, instance, TimeSpan.Zero);
}
public virtual T? Set<T>(string key, object id, T? instance, TimeSpan duration)
{
return Set(key, id, instance, duration, false);
}
public virtual T? Set<T>(string key, object id, T? instance, TimeSpan duration, bool slidingExpiration)
{
if (!Items.TryGetValue(key, out Entries? value))
{
value = new Entries();
if (!Items.TryAdd(key, value))
return default;
}
value.Set(id is null ? null : id.ToString(), instance, duration, slidingExpiration);
return instance;
}
internal void RemoveCore(string key, object id)
{
if (id is null)
return;
if (Items.TryGetValue(key, out Entries? value))
value.Remove(id.ToString());
}
public virtual async Task Remove(string key, object id)
{
await Remove(key, id, true);
}
private async Task Remove(string key, object id, bool removing)
{
if (Items.TryGetValue(key, out Entries? value))
value.Remove(id is null ? null : id.ToString());
if (removing)
await OnRemove(key, id);
}
protected virtual async Task OnRemove(string key, object id)
{
await Task.CompletedTask;
}
public async Task Invalidate(string key, object id)
{
await InvalidateCore(key, id, false);
}
internal async Task InvalidateCore(string key, object id, bool fromNotification)
{
/*
* we store existing instance but it is not
* removed from the cache yet. This is because other
* threads can access this instance while we are
* retrieving a new version from the source
*/
var existing = Get<object>(key, id);
var args = new CacheEventArgs(id is null ? null : id.ToString(), key);
/*
* this two events invalidate that cache reference.
* note that if no new version exists the existing one
* is still available to other threads.
*/
try
{
Invalidating?.Invoke(args);
}
catch { }
try
{
if (!fromNotification)
await OnInvalidating(args);
await OnInvalidate(args);
}
catch { }
/*
* now find out if a new version has been set for the
* specified key
*/
var newInstance = Get<object>(key, id);
/*
* if no existing reference exists there is no need for
* removing anything
*/
if (existing is not null)
{
/*
* we have an existing instance. we are dealing with two possible scenarios:
* - newInstance is null because entity has been deleted
* - newInstance is actually the same instance as the existing which means a new
* version does not exist. In both cases we must remove existing reference because
* at this point it is not valid anymore.
* note that the third case exists: reference has been replaced. in that case there
* is nothing to do because Invalidating events has already replaced reference with a
* new version.
*/
if (newInstance is null)
await Remove(key, id, false);
else if (existing.Equals(newInstance) && args.Behavior == InvalidateBehavior.RemoveSameInstance)
await Remove(key, id, false);
}
try
{
Invalidated?.Invoke(args);
}
catch { }
}
protected internal virtual async Task OnInvalidating(CacheEventArgs e)
{
await Task.CompletedTask;
}
protected virtual async Task OnInvalidate(CacheEventArgs e)
{
await Task.CompletedTask;
}
private void Clear()
{
foreach (var i in Items)
i.Value.Clear();
Items.Clear();
}
public virtual async Task<ImmutableList<string>?> Remove<T>(string key, Func<T, bool> predicate)
{
if (Items.TryGetValue(key, out Entries? value))
{
var result = value.Remove(predicate);
if (result is not null && result.Any())
await OnRemove(key, result);
}
return default;
}
protected virtual async Task OnRemove(string key, ImmutableList<string> ids)
{
await Task.CompletedTask;
}
public ImmutableList<string>? Keys(string key)
{
if (Items.TryGetValue(key, out Entries? value))
return value.Keys;
return default;
}
public ImmutableList<string> Keys()
{
return Items.Keys.ToImmutableList();
}
public bool Any(string key)
{
if (Items.TryGetValue(key, out Entries? value))
return value.Any();
return false;
}
private static T? GetValue<T>(IEntry entry)
{
if (entry is null || entry.Instance is null)
return default;
if (TypeConversion.TryConvert(entry.Instance, out T? result))
return result;
return default;
}
protected virtual void OnDisposing(bool disposing)
{
if (!_disposedValue)
{
if (disposing)
{
Cancel.Cancel();
Clear();
if (_scavenger is not null)
{
_cancel.Cancel();
if (_scavenger.IsCompleted)
_scavenger.Dispose();
}
}
_disposedValue = true;
}
}
public void Dispose()
{
OnDisposing(true);
GC.SuppressFinalize(this);
}
}

@ -0,0 +1,128 @@
using System.Collections;
using System.Collections.Immutable;
namespace Connected.Caching;
public abstract class CacheClient<TEntry, TKey> : ICacheClient<TEntry, TKey> where TEntry : class
{
protected CacheClient(ICachingService cachingService, string key)
{
if (cachingService is null)
throw new ArgumentException(nameof(cachingService));
CachingService = cachingService;
Key = key;
}
public string Key { get; }
protected bool IsDisposed { get; set; }
protected async Task Remove(TKey id)
{
if (id is null)
throw new ArgumentNullException(nameof(id));
await CachingService.Remove(Key, id);
}
protected async Task Remove(Func<TEntry, bool> predicate)
{
await CachingService.Remove(Key, predicate);
}
protected async Task Refresh(TKey id)
{
if (id is null)
throw new ArgumentNullException(nameof(id));
await CachingService.Invalidate(Key, id);
}
protected ICachingService CachingService { get; }
public int Count => CachingService.Count(Key);
protected virtual ICollection<string>? Keys => CachingService.Keys(Key);
protected virtual Task<ImmutableList<TEntry>?> All()
{
return Task.FromResult(CachingService.All<TEntry>(Key));
}
protected virtual async Task<TEntry?> Get(TKey id, Func<EntryOptions, Task<TEntry>> retrieve)
{
if (id is null)
throw new ArgumentNullException(nameof(id));
return await CachingService.Get(Key, id, retrieve);
}
protected virtual Task<TEntry?> Get(TKey id)
{
if (id is null)
throw new ArgumentNullException(nameof(id));
return Task.FromResult(CachingService.Get<TEntry>(Key, id));
}
protected virtual Task<TEntry?> First()
{
return Task.FromResult(CachingService.First<TEntry>(Key));
}
protected virtual async Task<TEntry?> Get(Func<TEntry, bool> predicate)
{
return await CachingService.Get(Key, predicate, null);
}
protected virtual Task<ImmutableList<TEntry>?> Where(Func<TEntry, bool> predicate)
{
return Task.FromResult(CachingService.Where(Key, predicate));
}
protected virtual void Set(TKey id, TEntry instance)
{
if (id is null)
throw new ArgumentNullException(nameof(id));
CachingService.Set(Key, id, instance);
}
protected virtual void Set(TKey id, TEntry instance, TimeSpan duration)
{
if (id is null)
throw new ArgumentNullException(nameof(id));
CachingService.Set(Key, id, instance, duration);
}
private void Dispose(bool disposing)
{
if (!IsDisposed)
{
if (disposing)
OnDisposing();
IsDisposed = true;
}
}
protected virtual void OnDisposing()
{
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
public virtual IEnumerator<TEntry> GetEnumerator()
{
return CachingService?.GetEnumerator<TEntry>(Key);
}
IEnumerator IEnumerable.GetEnumerator()
{
return GetEnumerator();
}
}

@ -0,0 +1,220 @@
using System.Collections.Immutable;
using System.Reflection;
using Connected.Interop;
using Connected.ServiceModel.Transactions;
namespace Connected.Caching;
internal class CacheContext : Cache, ICacheContext
{
public CacheContext(ICachingService cachingService, ITransactionContext transactionContext)
{
CachingService = cachingService;
TransactionContext = transactionContext;
TransactionContext.StateChanged += OnTransactionContextStateChanged;
}
private void OnTransactionContextStateChanged(object? sender, EventArgs e)
{
if (TransactionContext.State == MiddlewareTransactionState.Committing)
Flush();
}
private ICachingService CachingService { get; }
private ITransactionContext TransactionContext { get; }
public override bool Exists(string key)
{
return base.Exists(key) || (CachingService is not null && CachingService.Exists(key));
}
public override bool IsEmpty(string key)
{
return base.IsEmpty(key) || (CachingService is not null && CachingService.IsEmpty(key));
}
public override ImmutableList<T>? All<T>(string key)
{
return Merge(base.All<T>(key), CachingService?.All<T>(key));
}
public override async Task<T> Get<T>(string key, object id, Func<EntryOptions, Task<T>>? retrieve)
{
if (!TransactionContext.IsDirty)
{
if (retrieve is null)
return default;
return await CachingService.Get(key, id, retrieve);
}
return await base.Get(key, id, (f) =>
{
var shared = CachingService.Get<T>(key, id);
if (shared is not null)
return Task.FromResult(shared);
if (retrieve is null)
return default;
return retrieve(f);
});
}
public override async Task<T> Get<T>(string key, Func<T, bool> predicate, Func<EntryOptions, Task<T>>? retrieve)
{
if (!TransactionContext.IsDirty)
{
if (retrieve is null)
return default;
return await CachingService.Get(key, predicate, retrieve);
}
return await base.Get(key, predicate, (f) =>
{
var shared = CachingService.Get(key, predicate);
if (shared is not null)
return Task.FromResult(shared);
return retrieve(f);
});
}
public override T Get<T>(string key, object id)
{
var contextItem = base.Get<T>(key, id);
if (contextItem is not null)
return contextItem;
return CachingService.Get<T>(key, id);
}
public override T Get<T>(string key, Func<T, bool> predicate)
{
var contextItem = base.Get<T>(key, predicate);
if (contextItem is not null)
return contextItem;
return CachingService.Get(key, predicate);
}
public override async Task Clear(string key)
{
await base.Clear(key);
await CachingService.Clear(key);
}
public override T First<T>(string key)
{
if (base.First<T>(key) is T result)
return result;
return CachingService.First<T>(key);
}
public override ImmutableList<T> Where<T>(string key, Func<T, bool> predicate)
{
return Merge(base.Where(key, predicate), CachingService.Where(key, predicate));
}
public override T Set<T>(string key, object id, T instance)
{
if (!TransactionContext.IsDirty)
return CachingService.Set(key, id, instance);
return base.Set(key, id, instance);
}
public override T Set<T>(string key, object id, T instance, TimeSpan duration)
{
if (!TransactionContext.IsDirty)
return CachingService.Set(key, id, instance, duration);
return base.Set(key, id, instance, duration);
}
public override T Set<T>(string key, object id, T instance, TimeSpan duration, bool slidingExpiration)
{
if (!TransactionContext.IsDirty)
return CachingService.Set(key, id, instance, duration, slidingExpiration);
return base.Set(key, id, instance, duration, slidingExpiration);
}
public override async Task Remove(string key, object id)
{
await base.Remove(key, id);
await CachingService.Remove(key, id);
}
public override async Task<ImmutableList<string>?> Remove<T>(string key, Func<T, bool> predicate)
{
var local = await base.Remove(key, predicate);
var shared = await CachingService.Remove(key, predicate);
if (local is not null && shared is not null)
return local.AddRange(shared);
return local is not null ? local : shared;
}
public void Flush()
{
CachingService.Merge(this);
}
private static ImmutableList<T>? Merge<T>(ImmutableList<T>? contextItems, ImmutableList<T>? sharedItems)
{
if (contextItems is null)
return sharedItems;
var result = new List<T>(contextItems);
foreach (var sharedItem in sharedItems)
{
if (sharedItem is null)
continue;
if (CachingExtensions.GetCacheKeyProperty(sharedItem) is not PropertyInfo cacheProperty)
{
//Q: should we compare every property and add only if not matched?
contextItems.Add(sharedItem);
continue;
}
if (FindExisting(cacheProperty.GetValue(sharedItems), contextItems) is null)
result.Add(sharedItem);
}
return result.ToImmutableList();
}
private static T? FindExisting<T>(object value, ImmutableList<T> items)
{
if (items is null || items.IsEmpty)
return default;
if (CachingExtensions.GetCacheKeyProperty(items[0]) is not PropertyInfo cacheProperty)
return default;
foreach (var item in items)
{
var id = cacheProperty.GetValue(item);
if (TypeComparer.Compare(id, value))
return item;
}
return default;
}
protected override async Task OnInvalidate(CacheEventArgs e)
{
await CachingService.Invalidate(e.Key, e.Id);
}
}

@ -0,0 +1,27 @@
namespace Connected.Caching;
public enum InvalidateBehavior : byte
{
RemoveSameInstance = 1,
KeepSameInstance = 2
}
public class CacheEventArgs : EventArgs
{
public CacheEventArgs(string id, string key)
{
Key = key;
Id = id;
}
public CacheEventArgs(string id, string key, InvalidateBehavior behavior)
{
Key = key;
Id = id;
Behavior = behavior;
}
public string Id { get; init; }
public string Key { get; init; }
public InvalidateBehavior Behavior { get; set; } = InvalidateBehavior.RemoveSameInstance;
}

@ -0,0 +1,16 @@
namespace Connected.Caching;
public class CacheNotificationArgs
{
public CacheNotificationArgs(string method)
{
if (string.IsNullOrWhiteSpace(method))
throw new ArgumentException(null, nameof(method));
Method = method;
}
public string? Key { get; init; }
public List<string>? Ids { get; init; }
public string Method { get; }
}

@ -0,0 +1,13 @@
using System.Reflection;
using Connected.Caching.Annotations;
using Connected.Interop;
namespace Connected.Caching;
public static class CachingExtensions
{
public static PropertyInfo? GetCacheKeyProperty(object instance)
{
return Properties.GetPropertyAttribute<CacheKeyAttribute>(instance);
}
}

@ -0,0 +1,151 @@
using System.Collections.Immutable;
using Connected.Caching.Net;
using Connected.Net.Server;
namespace Connected.Caching;
internal sealed class CachingService : MemoryCache, ICachingService, IDisposable, IAsyncDisposable
{
public CachingService(IEndpointServer server, CacheServer state, CacheServerConnection backplaneClient)
{
if (server is null)
throw new ArgumentException(null, nameof(server));
if (state is null)
throw new ArgumentException(null, nameof(state));
BackplaneClient = backplaneClient;
Server = server;
BackplaneServer = state;
server.Changed += OnServerChanged;
server.Initialized += OnServerInitialized;
BackplaneServer.Received += OnReceived;
BackplaneClient.Received += OnReceived;
}
private CacheServerConnection BackplaneClient { get; set; }
private CacheServer BackplaneServer { get; }
private IEndpointServer Server { get; }
private async void OnServerInitialized(object? sender, EventArgs e)
{
await Initialize();
}
public async Task Initialize()
{
await BackplaneClient.Disconnect();
try
{
if (!await Server.IsServer())
{
await BackplaneClient.Initialize(Server.ServerUrl);
await BackplaneClient.Connect();
}
}
catch
{
// Server probably not initalized yet
}
}
private async void OnReceived(object? sender, CacheNotificationArgs e)
{
if (string.Equals(e.Method, nameof(Clear), StringComparison.Ordinal))
ClearCore(e.Key);
else if (string.Equals(e.Method, nameof(Remove), StringComparison.Ordinal))
{
if (e.Ids is not null && e.Ids.Any())
{
foreach (var id in e.Ids)
RemoveCore(e.Key, id);
}
}
else if (string.Equals(e.Method, nameof(Invalidate), StringComparison.Ordinal))
{
if (e.Ids is not null && e.Ids.Any())
{
foreach (var id in e.Ids)
await InvalidateCore(e.Key, id, true);
}
}
}
private async void OnServerChanged(object? sender, ServerChangedArgs e)
{
await Initialize();
}
public override async Task Clear(string key)
{
await base.Clear(key);
var args = new CacheNotificationArgs(nameof(Clear)) { Key = key };
if (await Server.IsServer())
await BackplaneServer.Send(args);
else
await BackplaneClient.Notify(nameof(Clear), args);
}
protected internal override async Task OnInvalidating(CacheEventArgs e)
{
var args = new CacheNotificationArgs(nameof(Invalidate))
{
Ids = new List<string> { e.Id },
Key = e.Key
};
if (await Server.IsServer())
await BackplaneServer.Send(args);
else
await BackplaneClient.Notify(nameof(Invalidate), args);
}
protected override async Task OnRemove(string key, ImmutableList<string> ids)
{
await base.OnRemove(key, ids);
var args = new CacheNotificationArgs(nameof(Remove))
{
Ids = ids.ToList(),
Key = key
};
if (await Server.IsServer())
await BackplaneServer.Send(args);
else
await BackplaneClient.Notify(nameof(Remove), args);
}
protected override async Task OnRemove(string key, object? id)
{
await base.OnRemove(key, id);
var ids = new List<string>();
if (id is not null)
ids.Add(id.ToString());
await OnRemove(key, ids.ToImmutableList());
}
public async ValueTask DisposeAsync()
{
Server.Changed -= OnServerChanged;
Server.Initialized -= OnServerInitialized;
}
protected override void OnDisposing(bool disposing)
{
Server.Changed -= OnServerChanged;
Server.Initialized -= OnServerInitialized;
base.OnDisposing(disposing);
}
}

@ -0,0 +1,33 @@
using Connected.Annotations;
using Connected.Caching.Net;
using Microsoft.AspNetCore.Builder;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
[assembly: MicroService(MicroServiceType.Sys)]
namespace Connected.Caching;
internal class CachingStartup : Startup
{
public const string CachingHub = "/caching";
protected override void OnConfigure(WebApplication app)
{
app.MapHub<CacheHub>(CachingHub);
}
protected override void OnConfigureServices(IServiceCollection services)
{
services.AddSingleton(typeof(CacheServer));
services.AddSingleton(typeof(CacheServerConnection));
services.AddSingleton(typeof(ICachingService), typeof(CachingService));
services.AddScoped(typeof(ICacheContext), typeof(CacheContext));
}
protected override async Task OnInitialize(IConfiguration config)
{
if (Services is not null && Services.GetService<ICachingService>() is ICachingService service)
await service.Initialize();
}
}

@ -0,0 +1,67 @@
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net7.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
<GeneratePackageOnBuild>True</GeneratePackageOnBuild>
<Title>$(AssemblyName)</Title>
<Authors>Tom PIT ltd</Authors>
<Copyright>2022 Tom PIT ltd</Copyright>
<PackageProjectUrl>https://git.tompit.com/Connected/Info</PackageProjectUrl>
<PackageReadmeFile>README.md</PackageReadmeFile>
<PackageTags>connected;platform;</PackageTags>
<IncludeSymbols>True</IncludeSymbols>
<SymbolPackageFormat>snupkg</SymbolPackageFormat>
<PackageLicenseFile>LICENSE</PackageLicenseFile>
<PackageOutputPath>$(OutputPath)</PackageOutputPath>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Connected.Runtime" Version="1.0.*-*" />
<PackageReference Include="Connected.Threading" Version="1.0.*-*" />
<PackageReference Include="Connected.Interop" Version="1.0.*-*" />
<PackageReference Include="Connected.Net" Version="1.0.*-*" />
<PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="7.0.*-*" />
<PackageReference Include="Nerdbank.GitVersioning"
Version="3.5.119"
PrivateAssets="all"
Condition="!Exists('packages.config')" />
</ItemGroup>
<ItemGroup>
<Compile Update="SR.Designer.cs">
<DesignTime>True</DesignTime>
<AutoGen>True</AutoGen>
<DependentUpon>SR.resx</DependentUpon>
</Compile>
</ItemGroup>
<ItemGroup>
<EmbeddedResource Update="SR.resx">
<Generator>ResXFileCodeGenerator</Generator>
<LastGenOutput>SR.Designer.cs</LastGenOutput>
</EmbeddedResource>
</ItemGroup>
<ItemGroup>
<None Include="..\..\LICENSE">
<Pack>True</Pack>
<PackagePath>\</PackagePath>
</None>
<None Include="..\..\README.md">
<Pack>True</Pack>
<PackagePath>\</PackagePath>
</None>
</ItemGroup>
<Target Name="CopyPackages" AfterTargets="Pack">
<Copy SourceFiles="$(OutputPath)..\$(PackageId).$(PackageVersion).nupkg" DestinationFolder="$([System.Environment]::GetEnvironmentVariable('LOCAL_NUGET'))" />
<Copy SourceFiles="$(OutputPath)..\$(PackageId).$(PackageVersion).snupkg" DestinationFolder="$([System.Environment]::GetEnvironmentVariable('LOCAL_NUGET'))" />
</Target>
<Target Name="UploadLocalPackages" AfterTargets="CopyPackages" >
<Exec Command="dotnet nuget push -s LocalNugetServer $(OutputPath)..\$(PackageId).$(PackageVersion).nupkg --api-key $([System.Environment]::GetEnvironmentVariable('LOCAL_NUGET_SERVER_TOKEN'))" IgnoreExitCode="true"></Exec>
<Exec Command="dotnet nuget push -s LocalNugetServer $(OutputPath)..\$(PackageId).$(PackageVersion).snupkg --api-key $([System.Environment]::GetEnvironmentVariable('LOCAL_NUGET_SERVER_TOKEN'))" IgnoreExitCode="true"></Exec>
</Target>
</Project>

@ -0,0 +1,260 @@
using System.Collections.Concurrent;
using System.Collections.Immutable;
using Connected.Interop;
namespace Connected.Caching;
internal class Entries
{
private readonly Lazy<ConcurrentDictionary<string, IEntry>> _items = new();
private ConcurrentDictionary<string, IEntry> Items => _items.Value;
public ImmutableList<string> Keys => Items.Keys.ToImmutableList();
public int Count => Items.Count;
public bool Any()
{
return Items.Any();
}
public void Scave()
{
var expired = new HashSet<string>();
foreach (var i in Items)
{
var r = i.Value;
if (r is null || r.Expired)
expired.Add(i.Key);
}
foreach (var i in expired)
Remove(i);
}
public ImmutableList<T> All<T>()
{
var r = new List<T>();
var expired = Items.Where(f => f.Value.Expired);
foreach (var e in expired)
Remove(e.Value.Id);
var instances = Items.Select(f => f.Value.Instance);
foreach (var i in instances)
{
if (TypeConversion.TryConvert(i, out T? result) && result is not null)
r.Add(result);
}
return r.ToImmutableList();
}
public void Remove(string key)
{
if (Items.IsEmpty)
return;
if (Items.TryRemove(key, out IEntry? v))
v.Dispose();
}
public void Set(string key, object? instance, TimeSpan duration, bool slidingExpiration)
{
Items[key] = new Entry(key, instance, duration, slidingExpiration);
}
public IEnumerator<T> GetEnumerator<T>()
{
return new EntryEnumerator<T>(Items);
}
public IEntry? Get(string key)
{
return Find(key);
}
public IEntry? First()
{
if (!Any())
return default;
return Items.First().Value;
}
public IEntry? Get<T>(Func<T, bool> predicate)
{
return Find(predicate);
}
public IEntry? Get<T>(Func<dynamic, bool> predicate)
{
return Find<T>(predicate);
}
public ImmutableList<string>? Remove<T>(Func<T, bool> predicate)
{
if (Where(predicate) is not ImmutableList<string> ds || ds.IsEmpty)
return default;
var result = new HashSet<string>();
foreach (var i in ds)
{
var key = Items.FirstOrDefault(f => InstanceEquals(f.Value?.Instance, i)).Key;
RemoveInternal(key);
result.Add(key);
}
return result.ToImmutableList();
}
public ImmutableList<T>? Where<T>(Func<T, bool> predicate)
{
var values = Items.Select(f => f.Value.Instance).Cast<T>();
if (values is null || !values.Any())
return default;
var filtered = values.Where(predicate);
if (filtered is null || !filtered.Any())
return default;
var r = new List<T>();
foreach (var i in filtered)
{
var ce = Items.FirstOrDefault(f => InstanceEquals(f.Value?.Instance, i));
if (ce.Value is null)
continue;
if (ce.Value.Expired)
{
RemoveInternal(ce.Value.Id);
continue;
}
ce.Value.Hit();
r.Add(i);
}
return r.ToImmutableList();
}
private void RemoveInternal(string key)
{
if (Items.TryRemove(key, out IEntry? d))
d.Dispose();
}
private IEntry? Find<T>(Func<T, bool> predicate)
{
var instances = Items.Select(f => f.Value?.Instance).Cast<T>();
if (instances is null || !instances.Any())
return default;
if (instances.FirstOrDefault(predicate) is not T instance)
return default;
var ce = Items.Values.FirstOrDefault(f => InstanceEquals(f.Instance, instance));
if (ce is null)
return default;
if (ce.Expired)
{
RemoveInternal(ce.Id);
return default;
}
ce.Hit();
return ce;
}
private IEntry? Find<T>(Func<dynamic, bool> predicate)
{
var instances = Items.Select(f => f.Value?.Instance).Cast<dynamic>();
if (instances is null || !instances.Any())
return default;
if (instances.FirstOrDefault(predicate) is not T instance)
return default;
if (Items.Values.FirstOrDefault(f => InstanceEquals(f.Instance, instance)) is not IEntry ce)
return default;
if (ce.Expired)
{
RemoveInternal(ce.Id);
return default;
}
ce.Hit();
return ce;
}
private IEntry? Find(string key)
{
if (!Items.ContainsKey(key))
return default;
if (Items.TryGetValue(key, out IEntry? d))
{
if (d.Expired)
{
RemoveInternal(key);
return default;
}
d.Hit();
return d;
}
else
{
RemoveInternal(key);
return default;
}
}
public bool Exists(string key)
{
return Find(key) is not null;
}
public void Clear()
{
foreach (var i in Items)
Remove(i.Key);
}
private static bool InstanceEquals(object? left, object? right)
{
/*
* TODO: implement IEquality check
*/
if (left is null || right is null)
return false;
if (left.GetType().IsPrimitive)
return left == right;
if (left is string && right is string)
return string.Compare(left.ToString(), right.ToString(), false) == 0;
if (left.GetType().IsValueType && right.GetType().IsValueType)
return left.Equals(right);
return ReferenceEqualityComparer.Instance.Equals(left, right);
}
}

@ -0,0 +1,35 @@
namespace Connected.Caching;
internal class Entry : IEntry
{
public Entry(string id, object? instance, TimeSpan duration, bool slidingExpiration)
{
Id = id;
Instance = instance;
SlidingExpiration = slidingExpiration;
Duration = duration;
if (Duration > TimeSpan.Zero)
ExpirationDate = DateTime.UtcNow.AddTicks(duration.Ticks);
}
public bool SlidingExpiration { get; }
private DateTime ExpirationDate { get; set; }
public TimeSpan Duration { get; set; }
public object? Instance { get; }
public string Id { get; }
public bool Expired => ExpirationDate != DateTime.MinValue && ExpirationDate < DateTime.UtcNow;
public void Hit()
{
if (SlidingExpiration && Duration > TimeSpan.Zero)
ExpirationDate = DateTime.UtcNow.AddTicks(Duration.Ticks);
}
public void Dispose()
{
if (Instance is IDisposable disposable)
disposable.Dispose();
}
}

@ -0,0 +1,43 @@
using System.Collections;
using System.Collections.Concurrent;
using Connected.Interop;
namespace Connected.Caching;
internal class EntryEnumerator<T> : IEnumerator<T>
{
public EntryEnumerator(ConcurrentDictionary<string, IEntry> items)
{
Items = items;
Index = -1;
}
private int Count => Items.Count;
private int Index { get; set; }
private ConcurrentDictionary<string, IEntry> Items { get; }
public T Current => TypeConversion.TryConvert(Items.ElementAt(Index).Value.Instance, out T result) ? result : default;
object IEnumerator.Current => Current;
public void Dispose()
{
}
public bool MoveNext()
{
if (Index < Count - 1)
{
Index++;
return true;
}
return false;
}
public void Reset()
{
Index = -1;
}
}

@ -0,0 +1,16 @@
namespace Connected.Caching;
public class EntryOptions
{
public string Key { get; set; }
public string? KeyProperty { get; set; }
public TimeSpan Duration { get; set; }
public bool SlidingExpiration { get; set; }
public bool AllowNull { get; set; }
public EntryOptions()
{
Duration = TimeSpan.FromMinutes(5);
SlidingExpiration = true;
}
}

@ -0,0 +1,39 @@
using System.Collections.Immutable;
namespace Connected.Caching;
public delegate void CacheInvalidateHandler(CacheEventArgs e);
public interface ICache : IDisposable
{
event CacheInvalidateHandler? Invalidating;
event CacheInvalidateHandler? Invalidated;
ImmutableList<T>? All<T>(string key);
Task<T?> Get<T>(string key, object id, Func<EntryOptions, Task<T?>>? retrieve);
T? Get<T>(string key, object id);
IEntry? Get(string key, object id);
Task<T?> Get<T>(string key, Func<T, bool> predicate, Func<EntryOptions, Task<T?>>? retrieve);
T? Get<T>(string key, Func<T, bool> predicate);
T? First<T>(string key);
IEnumerator<T>? GetEnumerator<T>(string key);
ImmutableList<T>? Where<T>(string key, Func<T, bool> predicate);
bool Exists(string key);
bool IsEmpty(string key);
void CreateKey(string key);
Task Clear(string key);
T? Set<T>(string key, object id, T? instance);
T? Set<T>(string key, object id, T? instance, TimeSpan duration);
T? Set<T>(string key, object id, T? instance, TimeSpan duration, bool slidingExpiration);
void CopyTo(string key, object id, IEntry entry);
Task<ImmutableList<string>?> Remove<T>(string key, Func<T, bool> predicate);
Task Remove(string key, object id);
Task Invalidate(string key, object id);
int Count(string key);
bool Any(string key);
ImmutableList<string>? Keys(string key);
ImmutableList<string>? Keys();
}

@ -0,0 +1,7 @@
namespace Connected.Caching;
public interface ICacheClient<TEntry, TKey> : IEnumerable<TEntry>, IDisposable
{
string Key { get; }
int Count { get; }
}

@ -0,0 +1,6 @@
namespace Connected.Caching;
public interface ICacheContext : ICache
{
void Flush();
}

@ -0,0 +1,7 @@
namespace Connected.Caching;
public interface ICachingService : ICache
{
void Merge(ICache cache);
Task Initialize();
}

@ -0,0 +1,11 @@
namespace Connected.Caching;
public interface IEntry : IDisposable
{
object? Instance { get; }
string Id { get; }
bool Expired { get; }
TimeSpan Duration { get; }
bool SlidingExpiration { get; }
void Hit();
}

@ -0,0 +1,6 @@
namespace Connected.Caching;
public interface IMemoryCache : ICache
{
void Merge(ICache cache);
}

@ -0,0 +1,6 @@
namespace Connected.Caching;
public interface IStatefulCacheClient<TEntry, TKey> : ICacheClient<TEntry, TKey>
{
event CacheInvalidateHandler Invalidate;
}

@ -0,0 +1,24 @@
using System.Collections.Immutable;
namespace Connected.Caching;
internal class MemoryCache : Cache, IMemoryCache
{
public void Merge(ICache cache)
{
if (cache.Keys() is not ImmutableList<string> keys)
return;
foreach (var key in keys)
{
if (cache.Keys(key) is not ImmutableList<string> entryKeys)
continue;
foreach (var entryKey in entryKeys)
{
if (cache.Get(key, entryKey) is IEntry entry)
CopyTo(key, entryKey, entry);
}
}
}
}

@ -0,0 +1,11 @@
using Connected.Net.Hubs;
namespace Connected.Caching.Net;
//TODO: implement authorization and add logic to reject connections if not an endpoint server
internal class CacheHub : StatefulHub<CacheNotificationArgs>
{
public CacheHub(CacheServer server) : base(server)
{
}
}

@ -0,0 +1,11 @@
using Connected.Net.Hubs;
using Microsoft.AspNetCore.SignalR;
namespace Connected.Caching.Net;
internal class CacheServer : Server<CacheHub, CacheNotificationArgs>
{
public CacheServer(IHubContext<CacheHub> hub) : base(hub)
{
}
}

@ -0,0 +1,36 @@
using Connected.Net.Hubs;
using Connected.Net.Messaging;
using Connected.Net.Server;
using Microsoft.AspNetCore.SignalR.Client;
using Microsoft.Extensions.Logging;
namespace Connected.Caching.Net;
internal class CacheServerConnection : ServerConnection
{
public event EventHandler<CacheNotificationArgs>? Received;
public CacheServerConnection(IEndpointServer server, ILogger<CacheServerConnection> logger) : base(server)
{
Logger = logger;
}
private ILogger<CacheServerConnection> Logger { get; }
public override async Task Initialize(string hubUrl)
{
await base.Initialize(hubUrl);
Connection.On<MessageAcknowledgeArgs, CacheNotificationArgs>("Notify", (a, e) =>
{
Connection.InvokeAsync(nameof(CacheHub.Acknowledge), a);
Received?.Invoke(this, e);
});
Connection.On<ServerExceptionArgs>("Exception", (e) =>
{
Logger.LogError("Caching hub exception: {message}", e.Message);
});
}
}

@ -0,0 +1,11 @@
using Connected.Net.Hubs;
using Microsoft.AspNetCore.SignalR;
namespace Connected.Caching.Net;
internal sealed class CacheWorker : ServerWorker<CacheNotificationArgs, CacheHub>
{
public CacheWorker(CacheServer server, IHubContext<CacheHub> hub) : base(server, hub)
{
}
}

@ -0,0 +1,72 @@
//------------------------------------------------------------------------------
// <auto-generated>
// This code was generated by a tool.
// Runtime Version:4.0.30319.42000
//
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------
namespace Connected.Caching {
using System;
/// <summary>
/// A strongly-typed resource class, for looking up localized strings, etc.
/// </summary>
// This class was auto-generated by the StronglyTypedResourceBuilder
// class via a tool like ResGen or Visual Studio.
// To add or remove a member, edit your .ResX file then rerun ResGen
// with the /str option, or rebuild your VS project.
[global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "17.0.0.0")]
[global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
[global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
internal class SR {
private static global::System.Resources.ResourceManager resourceMan;
private static global::System.Globalization.CultureInfo resourceCulture;
[global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
internal SR() {
}
/// <summary>
/// Returns the cached ResourceManager instance used by this class.
/// </summary>
[global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
internal static global::System.Resources.ResourceManager ResourceManager {
get {
if (object.ReferenceEquals(resourceMan, null)) {
global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("Connected.Caching.SR", typeof(SR).Assembly);
resourceMan = temp;
}
return resourceMan;
}
}
/// <summary>
/// Overrides the current thread's CurrentUICulture property for all
/// resource lookups using this strongly typed resource class.
/// </summary>
[global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
internal static global::System.Globalization.CultureInfo Culture {
get {
return resourceCulture;
}
set {
resourceCulture = value;
}
}
/// <summary>
/// Looks up a localized string similar to Cache Key property not set. Please set &apos;Key&apos; property before returning value from cache retrieve handler or set CacheKeyAttribute on at least one property..
/// </summary>
internal static string ErrCacheKeyNull {
get {
return ResourceManager.GetString("ErrCacheKeyNull", resourceCulture);
}
}
}
}

@ -0,0 +1,123 @@
<?xml version="1.0" encoding="utf-8"?>
<root>
<!--
Microsoft ResX Schema
Version 2.0
The primary goals of this format is to allow a simple XML format
that is mostly human readable. The generation and parsing of the
various data types are done through the TypeConverter classes
associated with the data types.
Example:
... ado.net/XML headers & schema ...
<resheader name="resmimetype">text/microsoft-resx</resheader>
<resheader name="version">2.0</resheader>
<resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
<resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
<data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
<data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
<data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
<value>[base64 mime encoded serialized .NET Framework object]</value>
</data>
<data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
<value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
<comment>This is a comment</comment>
</data>
There are any number of "resheader" rows that contain simple
name/value pairs.
Each data row contains a name, and value. The row also contains a
type or mimetype. Type corresponds to a .NET class that support
text/value conversion through the TypeConverter architecture.
Classes that don't support this are serialized and stored with the
mimetype set.
The mimetype is used for serialized objects, and tells the
ResXResourceReader how to depersist the object. This is currently not
extensible. For a given mimetype the value must be set accordingly:
Note - application/x-microsoft.net.object.binary.base64 is the format
that the ResXResourceWriter will generate, however the reader can
read any of the formats listed below.
mimetype: application/x-microsoft.net.object.binary.base64
value : The object must be serialized with
: System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
: and then encoded with base64 encoding.
mimetype: application/x-microsoft.net.object.soap.base64
value : The object must be serialized with
: System.Runtime.Serialization.Formatters.Soap.SoapFormatter
: and then encoded with base64 encoding.
mimetype: application/x-microsoft.net.object.bytearray.base64
value : The object must be serialized into a byte array
: using a System.ComponentModel.TypeConverter
: and then encoded with base64 encoding.
-->
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
<xsd:complexType>
<xsd:choice maxOccurs="unbounded">
<xsd:element name="metadata">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="value" type="xsd:string" minOccurs="0" />
</xsd:sequence>
<xsd:attribute name="name" use="required" type="xsd:string" />
<xsd:attribute name="type" type="xsd:string" />
<xsd:attribute name="mimetype" type="xsd:string" />
<xsd:attribute ref="xml:space" />
</xsd:complexType>
</xsd:element>
<xsd:element name="assembly">
<xsd:complexType>
<xsd:attribute name="alias" type="xsd:string" />
<xsd:attribute name="name" type="xsd:string" />
</xsd:complexType>
</xsd:element>
<xsd:element name="data">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
<xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
<xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
<xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
<xsd:attribute ref="xml:space" />
</xsd:complexType>
</xsd:element>
<xsd:element name="resheader">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required" />
</xsd:complexType>
</xsd:element>
</xsd:choice>
</xsd:complexType>
</xsd:element>
</xsd:schema>
<resheader name="resmimetype">
<value>text/microsoft-resx</value>
</resheader>
<resheader name="version">
<value>2.0</value>
</resheader>
<resheader name="reader">
<value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
</resheader>
<resheader name="writer">
<value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
</resheader>
<data name="ErrCacheKeyNull" xml:space="preserve">
<value>Cache Key property not set. Please set 'Key' property before returning value from cache retrieve handler or set CacheKeyAttribute on at least one property.</value>
</data>
</root>

@ -0,0 +1,113 @@
using System.Collections.Immutable;
using System.Globalization;
using Connected.Interop;
using Connected.Threading;
namespace Connected.Caching;
public abstract class StatefulCacheClient<TEntry, TKey> : CacheClient<TEntry, TKey>, IStatefulCacheClient<TEntry, TKey> where TEntry : class
{
public event CacheInvalidateHandler Invalidate;
protected StatefulCacheClient(ICachingService cachingService, string key) : base(cachingService, key)
{
Locker = new AsyncLockerSlim();
CachingService.Invalidating += OnInvalidate;
}
private AsyncLockerSlim? Locker { get; set; }
protected virtual InvalidateBehavior InvalidateBehavior { get; } = InvalidateBehavior.KeepSameInstance;
private bool Initialized { get; set; }
private async void OnInvalidate(CacheEventArgs e)
{
if (string.Equals(e.Key, Key, StringComparison.OrdinalIgnoreCase))
{
if (Initialized)
await OnInvalidate(TypeConversion.Convert<TKey>(e.Id, CultureInfo.InvariantCulture));
Invalidate?.Invoke(e);
e.Behavior = InvalidateBehavior;
}
}
protected virtual async Task OnInvalidate(TKey id)
{
await Task.CompletedTask;
}
protected virtual async Task OnInitializing()
{
await Task.CompletedTask;
}
protected async Task Initialize()
{
if (Initialized || IsDisposed || Locker is null)
return;
await Locker.LockAsync(async () =>
{
if (Initialized || IsDisposed)
return;
await OnInitializing();
Initialized = true;
});
if (Initialized)
await OnInitialized();
}
protected virtual async Task OnInitialized()
{
await Task.CompletedTask;
}
protected override async Task<ImmutableList<TEntry>?> All()
{
await Initialize();
return base.All().Result;
}
protected override async Task<TEntry?> First()
{
await Initialize();
return await base.First();
}
protected override async Task<TEntry?> Get(Func<TEntry, bool> predicate)
{
await Initialize();
return await base.Get(predicate);
}
protected override async Task<TEntry?> Get(TKey id)
{
await Initialize();
return await base.Get(id);
}
protected override async Task<TEntry?> Get(TKey id, Func<EntryOptions, Task<TEntry>> retrieve)
{
await Initialize();
return await base.Get(id, retrieve);
}
protected override async Task<ImmutableList<TEntry>?> Where(Func<TEntry, bool> predicate)
{
await Initialize();
return await base.Where(predicate);
}
protected override void OnDisposing()
{
if (Locker is not null)
{
Locker?.Dispose();
Locker = null;
}
}
public override IEnumerator<TEntry> GetEnumerator()
{
AsyncUtils.RunSync(Initialize);
return base.GetEnumerator();
}
}

@ -0,0 +1,14 @@
{
"$schema": "https://raw.githubusercontent.com/dotnet/Nerdbank.GitVersioning/main/src/NerdBank.GitVersioning/version.schema.json",
"version": "1.0-prerelease",
"semVer1NumericIdentifierPadding": 4,
"nugetPackageVersion": {
"semVer": 2, // optional. Set to either 1 or 2 to control how the NuGet package version string is generated. Default is 1.
"precision": "build" // optional. Use when you want to use a more or less precise package version than the default major.minor.build.
},
"cloudBuild": {
"buildNumber": {
"enabled": true
}
}
}

@ -0,0 +1,76 @@
using System.Collections.Immutable;
using System.Reflection;
using Connected.Annotations;
namespace Connected.Collections;
public static class CollectionExtensions
{
public static ImmutableArray<TSource> ToImmutableArray<TSource>(this IEnumerable<TSource> items, bool performLock)
{
if (!performLock)
return items.ToImmutableArray();
lock (items)
return items.ToImmutableArray();
}
public static ImmutableList<TSource> ToImmutableList<TSource>(this IEnumerable<TSource> items, bool performLock)
{
if (!performLock)
return items.ToImmutableList();
lock (items)
return items.ToImmutableList();
}
public static void SortByOrdinal<TElement>(this List<TElement> items)
{
items.Sort((left, right) =>
{
var leftOrdinal = left is Type lt ? lt.GetCustomAttribute<OrdinalAttribute>() : left?.GetType().GetCustomAttribute<OrdinalAttribute>();
var rightOrdinal = right is Type rt ? rt.GetCustomAttribute<OrdinalAttribute>() : right?.GetType().GetCustomAttribute<OrdinalAttribute>();
if (leftOrdinal is null && rightOrdinal is null)
return 0;
if (leftOrdinal is not null && rightOrdinal is null)
return -1;
if (leftOrdinal is null && rightOrdinal is not null)
return 1;
if (leftOrdinal?.Value == rightOrdinal?.Value)
return 0;
else if (leftOrdinal?.Value < rightOrdinal?.Value)
return 1;
else
return -1;
});
}
public static void SortByPriority<TElement>(this List<TElement> items)
{
items.Sort((left, right) =>
{
var leftPriority = left is Type lt ? lt.GetCustomAttribute<PriorityAttribute>() : left?.GetType().GetCustomAttribute<PriorityAttribute>();
var rightPriority = right is Type rt ? rt.GetCustomAttribute<PriorityAttribute>() : right?.GetType().GetCustomAttribute<PriorityAttribute>();
if (leftPriority is null && rightPriority is null)
return 0;
if (leftPriority is not null && rightPriority is null)
return -1;
if (leftPriority is null && rightPriority is not null)
return 1;
if (leftPriority?.Value == rightPriority?.Value)
return 0;
else if (leftPriority?.Value > rightPriority?.Value)
return -1;
else
return 1;
});
}
}

@ -0,0 +1,6 @@
namespace Connected.Collections;
public static class CollectionRoutes
{
public const string Queue = "/sys/queue";
}

@ -0,0 +1,16 @@
using Connected.Annotations;
using Microsoft.AspNetCore.Builder;
[assembly: MicroService(MicroServiceType.Sys)]
namespace Connected.Collections;
internal class CollectionsStartup : Startup
{
public static WebApplication? Application { get; private set; }
protected override void OnConfigure(WebApplication app)
{
Application = app;
}
}

@ -0,0 +1,177 @@
using System.Collections.Concurrent;
using Connected;
using Microsoft.Extensions.DependencyInjection;
namespace Connected.Collections.Concurrent;
public abstract class Dispatcher<TArgs, TJob> : IDispatcher<TArgs, TJob>
where TJob : IDispatcherJob<TArgs>
{
private CancellationTokenSource _tokenSource;
protected Dispatcher(int size)
{
WorkerSize = size;
_tokenSource = new();
Queue = new();
Jobs = new();
QueuedDispatchers = new();
}
public CancellationToken CancellationToken => _tokenSource.Token;
private ConcurrentQueue<TArgs> Queue { get; set; }
private List<DispatcherJob<TArgs>> Jobs { get; set; }
protected bool IsDisposed { get; private set; }
private int WorkerSize { get; }
public int Available => Math.Max(0, WorkerSize * 4 - Queue.Count - QueuedDispatchers.Sum(f => f.Value.Count));
private ConcurrentDictionary<string, QueuedDispatcher<TArgs, TJob>> QueuedDispatchers { get; set; }
public DispatcherProcessBehavior Behavior => DispatcherProcessBehavior.Parallel;
public void Cancel()
{
_tokenSource?.Cancel();
}
public bool Dequeue(out TArgs? item)
{
return Queue.TryDequeue(out item);
}
public bool Enqueue(string queue, TArgs item)
{
if (EnsureDispatcher(queue) is not QueuedDispatcher<TArgs, TJob> dispatcher)
throw new SysException(this, $"{SR.ErrCreateQueuedDispatcher} ({queue})");
return dispatcher.Enqueue(item);
}
public bool Enqueue(TArgs item)
{
Queue.Enqueue(item);
if (Jobs.Count < WorkerSize)
{
/*
* Dispatcher jobs should be transient so it's safe to request a service from the root collection.
*/
if (CollectionsStartup.Application.Services.GetService<TJob>() is not DispatcherJob<TArgs> job)
throw new NullReferenceException($"{SR.ErrCreateService} ({typeof(DispatcherJob<TArgs>).Name})");
job.Completed += OnCompleted;
lock (Jobs)
{
Jobs.Add(job);
}
job.Run(Queue, CancellationToken);
}
return true;
}
private void OnCompleted(object? sender, EventArgs e)
{
if (sender is not DispatcherJob<TArgs> job)
return;
if (Queue.IsEmpty)
{
lock (Jobs)
{
Jobs.Remove(job);
}
job.Dispose();
}
else
job.Run(Queue, CancellationToken);
}
private QueuedDispatcher<TArgs, TJob>? EnsureDispatcher(string queueName)
{
if (QueuedDispatchers.TryGetValue(queueName, out QueuedDispatcher<TArgs, TJob>? result))
return result;
result = new QueuedDispatcher<TArgs, TJob>(this, queueName);
result.Completed += OnQueuedCompleted;
if (!QueuedDispatchers.TryAdd(queueName, result))
{
result.Completed -= OnQueuedCompleted;
if (QueuedDispatchers.TryGetValue(queueName, out QueuedDispatcher<TArgs, TJob>? retryResult))
return retryResult;
else
return default;
}
return result;
}
private void OnQueuedCompleted(object? sender, EventArgs e)
{
if (sender is not QueuedDispatcher<TArgs, TJob> dispatcher)
return;
if (dispatcher.Count > 0)
return;
QueuedDispatchers.Remove(dispatcher.QueueName, out _);
dispatcher.Dispose();
}
private void Dispose(bool disposing)
{
if (!IsDisposed)
{
if (disposing)
{
if (_tokenSource is not null)
{
if (!_tokenSource.IsCancellationRequested)
_tokenSource.Cancel();
_tokenSource.Dispose();
_tokenSource = null;
}
if (Queue is not null)
{
Queue.Clear();
Queue = null;
}
if (Jobs is not null)
{
foreach (var job in Jobs)
job.Dispose();
Jobs.Clear();
Jobs = null;
}
if (QueuedDispatchers is not null)
{
foreach (var dispatcher in QueuedDispatchers)
dispatcher.Value.Dispose();
QueuedDispatchers.Clear();
Queue = null;
}
}
IsDisposed = true;
}
}
protected virtual void OnDisposing()
{
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
}

@ -0,0 +1,103 @@
using System.Collections.Concurrent;
using System.ComponentModel;
using Connected.Data;
namespace Connected.Collections.Concurrent;
/// <summary>
/// This class acts as a job unit of the <see cref="IDispatcher{T}"/>.
/// </summary>
/// <typeparam name="TArgs"></typeparam>
public abstract class DispatcherJob<TArgs> : IDispatcherJob<TArgs>, IDisposable
{
public event EventHandler? Completed;
public bool IsRunning { get; private set; }
protected bool IsDisposed { get; private set; }
private CancellationToken CancellationToken { get; set; }
internal void Run(ConcurrentQueue<TArgs> queue, CancellationToken cancellationToken)
{
CancellationToken = cancellationToken;
if (IsRunning)
return;
Task.Run(async () =>
{
IsRunning = true;
TArgs? item = default;
try
{
while (queue.TryDequeue(out item))
{
if (item is null)
continue;
if (item is IPopReceipt pr && pr.NextVisible <= DateTime.UtcNow)
continue;
await Invoke(item);
if (cancellationToken.IsCancellationRequested || IsDisposed)
break;
}
}
catch (Exception ex)
{
await HandleException(item, ex);
}
IsRunning = false;
Completed?.Invoke(this, EventArgs.Empty);
}, CancellationToken);
}
private void OnCompleted(object? sender, RunWorkerCompletedEventArgs e)
{
Completed?.Invoke(this, EventArgs.Empty);
}
public async Task Invoke(TArgs args)
{
await OnInvoke(args, CancellationToken);
}
protected virtual async Task OnInvoke(TArgs args, CancellationToken cancellationToken)
{
await Task.CompletedTask;
}
private async Task HandleException(TArgs? args, Exception ex)
{
await OnHandleEception(args, ex);
}
protected virtual async Task OnHandleEception(TArgs? args, Exception ex)
{
await Task.CompletedTask;
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
protected virtual void Dispose(bool disposing)
{
if (IsDisposed)
return;
if (disposing)
OnDisposing();
IsDisposed = true;
}
protected virtual void OnDisposing()
{
}
}

@ -0,0 +1,19 @@
namespace Connected.Collections.Concurrent;
public enum DispatcherProcessBehavior
{
Parallel = 1,
Queued = 2
}
public interface IDispatcher<TArgs, TJob> : IDisposable
where TJob : IDispatcherJob<TArgs>
{
bool Dequeue(out TArgs? item);
bool Enqueue(TArgs item);
bool Enqueue(string queue, TArgs item);
DispatcherProcessBehavior Behavior { get; }
CancellationToken CancellationToken { get; }
void Cancel();
}

@ -0,0 +1,7 @@
namespace Connected.Collections.Concurrent;
public interface IDispatcherJob<TArgs> : IDisposable
{
Task Invoke(TArgs args);
bool IsRunning { get; }
}

@ -0,0 +1,99 @@
using System.Collections.Concurrent;
using Microsoft.Extensions.DependencyInjection;
namespace Connected.Collections.Concurrent;
internal sealed class QueuedDispatcher<TArgs, TJob> : IDispatcher<TArgs, TJob>
where TJob : IDispatcherJob<TArgs>
{
public event EventHandler? Completed;
public QueuedDispatcher(IDispatcher<TArgs, TJob> dispatcher, string queueName)
{
Dispatcher = dispatcher;
Queue = new();
QueueName = queueName;
/*
* Dispatcher jobs should be transient so it's safe to request a service from the root collection.
*/
if (CollectionsStartup.Application?.Services.GetService<DispatcherJob<TArgs>>() is not DispatcherJob<TArgs> job)
throw new SysException(this, $"{SR.ErrCreateService} ({typeof(DispatcherJob<TArgs>).Name})");
job.Completed += OnCompleted;
Job = job;
}
public CancellationToken CancellationToken => Dispatcher.CancellationToken;
public bool IsDisposed { get; private set; }
public DispatcherProcessBehavior Behavior => DispatcherProcessBehavior.Queued;
public string QueueName { get; }
private DispatcherJob<TArgs> Job { get; set; }
private IDispatcher<TArgs, TJob> Dispatcher { get; set; }
public int Count => Queue.Count;
private ConcurrentQueue<TArgs> Queue { get; set; }
public void Cancel()
{
}
public bool Dequeue(out TArgs? item)
{
return Queue.TryDequeue(out item);
}
public bool Enqueue(TArgs item)
{
if (IsDisposed)
return false;
Queue.Enqueue(item);
if (!Job.IsRunning)
Job.Run(Queue, CancellationToken);
return true;
}
private void OnCompleted(object? sender, EventArgs e)
{
if (sender is not DispatcherJob<TArgs> job)
return;
if (!Queue.IsEmpty)
{
job.Run(Queue, CancellationToken);
return;
}
Completed?.Invoke(this, EventArgs.Empty);
}
public bool Enqueue(string queue, TArgs args)
{
return Dispatcher.Enqueue(queue, args);
}
private void Dispose(bool disposing)
{
if (!IsDisposed)
{
if (disposing)
{
if (Job is not null)
{
Job.Dispose();
Job = null;
}
}
IsDisposed = true;
}
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
}

@ -0,0 +1,66 @@
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net7.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
<GeneratePackageOnBuild>True</GeneratePackageOnBuild>
<Title>$(AssemblyName)</Title>
<Authors>Tom PIT ltd</Authors>
<Copyright>2022 Tom PIT ltd</Copyright>
<PackageProjectUrl>https://git.tompit.com/Connected/Info</PackageProjectUrl>
<PackageReadmeFile>README.md</PackageReadmeFile>
<PackageTags>connected;platform;</PackageTags>
<IncludeSymbols>True</IncludeSymbols>
<SymbolPackageFormat>snupkg</SymbolPackageFormat>
<PackageLicenseFile>LICENSE</PackageLicenseFile>
<PackageOutputPath>$(OutputPath)</PackageOutputPath>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Connected" Version="1.0.*-*" />
<PackageReference Include="Connected.Runtime" Version="1.0.*-*" />
<PackageReference Include="Connected.Interop" Version="1.0.*-*" />
<PackageReference Include="Nerdbank.GitVersioning"
Version="3.5.119"
PrivateAssets="all"
Condition="!Exists('packages.config')" />
</ItemGroup>
<ItemGroup>
<Compile Update="SR.Designer.cs">
<DesignTime>True</DesignTime>
<AutoGen>True</AutoGen>
<DependentUpon>SR.resx</DependentUpon>
</Compile>
</ItemGroup>
<ItemGroup>
<EmbeddedResource Update="SR.resx">
<Generator>ResXFileCodeGenerator</Generator>
<LastGenOutput>SR.Designer.cs</LastGenOutput>
</EmbeddedResource>
</ItemGroup>
<ItemGroup>
<None Include="..\..\LICENSE">
<Pack>True</Pack>
<PackagePath>\</PackagePath>
</None>
<None Include="..\..\README.md">
<Pack>True</Pack>
<PackagePath>\</PackagePath>
</None>
</ItemGroup>
<Target Name="CopyPackages" AfterTargets="Pack">
<Copy SourceFiles="$(OutputPath)..\$(PackageId).$(PackageVersion).nupkg" DestinationFolder="$([System.Environment]::GetEnvironmentVariable('LOCAL_NUGET'))" />
<Copy SourceFiles="$(OutputPath)..\$(PackageId).$(PackageVersion).snupkg" DestinationFolder="$([System.Environment]::GetEnvironmentVariable('LOCAL_NUGET'))" />
</Target>
<Target Name="UploadLocalPackages" AfterTargets="CopyPackages" >
<Exec Command="dotnet nuget push -s LocalNugetServer $(OutputPath)..\$(PackageId).$(PackageVersion).nupkg --api-key $([System.Environment]::GetEnvironmentVariable('LOCAL_NUGET_SERVER_TOKEN'))" IgnoreExitCode="true"></Exec>
<Exec Command="dotnet nuget push -s LocalNugetServer $(OutputPath)..\$(PackageId).$(PackageVersion).snupkg --api-key $([System.Environment]::GetEnvironmentVariable('LOCAL_NUGET_SERVER_TOKEN'))" IgnoreExitCode="true"></Exec>
</Target>
</Project>

@ -0,0 +1,33 @@
using Connected.Collections.Iterators;
namespace Connected.Collections;
public class Iterator
{
private IIterator _iterator;
public Iterator(object value)
{
if (value is null)
throw new ArgumentException(nameof(value));
if (DictionaryIterator.CanHandle(value))
_iterator = new DictionaryIterator(value);
else if (ListIterator.CanHandle(value))
_iterator = new ListIterator(value);
else if (ArrayIterator.CanHandle(value))
_iterator = new ArrayIterator(value);
}
public async Task<bool> MoveNext(Func<object, Task<object>> processor)
{
if (!_iterator.MoveNext())
return false;
if (await processor(_iterator.Current) is object value)
_iterator.Add(value);
return true;
}
public object? Result => _iterator.Result;
}

@ -0,0 +1,32 @@
namespace Connected.Collections.Iterators;
internal class ArrayIterator : IIterator
{
public ArrayIterator(object value)
{
}
public object? Result => throw new NotImplementedException();
public object Current => throw new NotImplementedException();
public static bool CanHandle(object value)
{
return value.GetType().IsArray;
}
public void Add(object value)
{
throw new NotImplementedException();
}
public bool MoveNext()
{
throw new NotImplementedException();
}
public void Reset()
{
throw new NotImplementedException();
}
}

@ -0,0 +1,75 @@
using System.Collections;
using System.Collections.Immutable;
using Connected.Interop;
namespace Connected.Collections.Iterators;
internal class DictionaryIterator : IIterator
{
private readonly object _value;
private IDictionary _result;
public DictionaryIterator(object value)
{
_value = value;
if (value is not IDictionary dictionary)
return;
Enumerator = dictionary.GetEnumerator();
CreateResult();
}
public static bool CanHandle(object value)
{
var arguments = value.GetType().GetGenericArguments();
var kvp = typeof(KeyValuePair<,>).MakeGenericType(arguments);
var en = typeof(IEnumerable<>).MakeGenericType(kvp);
return value.GetType() == en;
}
private void CreateResult()
{
if (_value.GetType() == typeof(IImmutableDictionary<,>))
_result = _value.GetType().MakeGenericType(_value.GetType().GenericTypeArguments).CreateInstance<IDictionary>();
}
private IDictionaryEnumerator? Enumerator { get; }
public object? Current => Enumerator?.Value;
public object? Result
{
get
{
if (_value is null)
return null;
throw new NotImplementedException();
}
}
public bool MoveNext()
{
if (Enumerator is null)
return false;
return Enumerator.MoveNext();
}
public void Reset()
{
if (Enumerator is null)
return;
Enumerator.Reset();
}
public void Add(object value)
{
if (Current is null || Enumerator is null)
throw new InvalidOperationException(SR.ErrIteratorCurrentNull);
_result.Add(Enumerator.Key, value);
}
}

@ -0,0 +1,10 @@
using System.Collections;
namespace Connected.Collections.Iterators;
internal interface IIterator : IEnumerator
{
void Add(object value);
object? Result { get; }
}

@ -0,0 +1,36 @@
namespace Connected.Collections.Iterators;
internal class ListIterator : IIterator
{
public ListIterator(object value)
{
}
public object? Result => throw new NotImplementedException();
public object Current => throw new NotImplementedException();
public static bool CanHandle(object value)
{
var arguments = value.GetType().GetGenericArguments();
var list = typeof(IList<>).MakeGenericType(arguments);
return value.GetType() == list;
}
public void Add(object value)
{
throw new NotImplementedException();
}
public bool MoveNext()
{
throw new NotImplementedException();
}
public void Reset()
{
throw new NotImplementedException();
}
}

@ -0,0 +1,6 @@
namespace Connected.Collections.Queues;
public interface IQueueClient<TArgs> : IMiddleware
where TArgs : QueueArgs
{
Task Invoke(IQueueMessage message, TArgs args);
}

@ -0,0 +1,48 @@
using Connected.Data;
namespace Connected.Collections.Queues;
/// <summary>
/// Represents a single queue message.
/// </summary>
/// <remarks>
/// A queue message represents a unit of queued or deferred work which
/// can be processed distributed anywhere or in any client which
/// has access to the Queue REST service.
/// </remarks>
public interface IQueueMessage : IPrimaryKey<long>, IPopReceipt
{
/// <summary>
/// Date date and time the queue message was created.
/// </summary>
DateTime Created { get; init; }
/// <summary>
/// The number of times the clients dequeued the message.
/// </summary>
/// <remarks>
/// There are numerous reasons why queue message gets dequeued multiple
/// times. It could be that not all conditions were met at the time
/// of processing or that queue message was not processed quich enough and
/// its pop receipt expired. In such cases message returns to the queue and
/// waits for the next client to dequeue it.
/// </remarks>
int DequeueCount { get; init; }
/// <summary>
/// The timestamp message was last dequeued.
/// </summary>
DateTime? DequeueTimestamp { get; init; }
/// <summary>
/// The queue to which the message belongs.
/// </summary>
/// <remarks>
/// Every queue client must specify which queue processes.
/// </remarks>
string Queue { get; init; }
/// <summary>
/// The arguments object which contains information about the message.
/// </summary>
/// <remarks>
/// Most queue messages do have an argument object, mostly providing na id of the
/// entity or record for which processing should be performed.
/// </remarks>
QueueArgs Arguments { get; init; }
}

@ -0,0 +1,34 @@
using System.Collections.Immutable;
using Connected.Annotations;
namespace Connected.Collections.Queues;
/// <summary>
/// Represents a distributed service for processing queue messages.
/// </summary>
/// <remarks>
/// Queue mechanism is mostly used as an internal logic of processes
/// and resources to offload work from the main thread to achieve better
/// responsiveness of the system. Aggregations and calculations are good
/// examples of queue usage. You should use queue whenever you must
/// perform any kind of work that is not necessary to perform it in a single
/// transaction scope.
/// </remarks>
[Service]
[ServiceUrl(CollectionRoutes.Queue)]
public interface IQueueService
{
/// <summary>
/// Enqueues the queue message.
/// </summary>
/// <typeparam name="TArgs">The type of the arguments used in queue message</typeparam>
/// <param name="args">The arguments containing information about a queue message.</param>
Task Enqueue<TClient, TArgs>(TArgs args)
where TClient : IQueueClient<TArgs>
where TArgs : QueueArgs;
/// <summary>
/// Dequeues the queue messages based on the provided arguments.
/// </summary>
/// <param name="args">The arguments containing information about dequeue criteria.</param>
/// <returns>A list of valid queue messages that can be immediatelly processed.S</returns>
Task<ImmutableList<IQueueMessage>> Dequeue(DequeueArgs args);
}

@ -0,0 +1,44 @@
using System.ComponentModel.DataAnnotations;
using Connected.Annotations;
using Connected.ServiceModel;
namespace Connected.Collections.Queues;
public class QueueArgs : Dto
{
public QueueArgs()
{
Options = new();
}
public EnqueueOptions Options { get; set; }
}
public class PrimaryKeyQueueArgs<TPrimaryKey> : QueueArgs
where TPrimaryKey : notnull
{
public TPrimaryKey Id { get; set; } = default!;
}
public sealed class EnqueueOptions
{
/// <summary>
/// The date and time the queue message expires.
/// </summary>
/// <remarks>
/// Queue messages that are not processed until they expire
/// gets automatically deleted by the system.
/// </remarks>
public DateTime Expire { get; set; } = DateTime.UtcNow.AddHours(48);
}
public sealed class DequeueArgs : Dto
{
[NonDefault]
public List<string> Queues { get; set; } = default!;
[Range(1, int.MaxValue)]
public int MaxCount { get; set; }
public TimeSpan NextVisible { get; set; }
}

@ -0,0 +1,90 @@
//------------------------------------------------------------------------------
// <auto-generated>
// This code was generated by a tool.
// Runtime Version:4.0.30319.42000
//
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------
namespace Connected.Collections {
using System;
/// <summary>
/// A strongly-typed resource class, for looking up localized strings, etc.
/// </summary>
// This class was auto-generated by the StronglyTypedResourceBuilder
// class via a tool like ResGen or Visual Studio.
// To add or remove a member, edit your .ResX file then rerun ResGen
// with the /str option, or rebuild your VS project.
[global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "17.0.0.0")]
[global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
[global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
internal class SR {
private static global::System.Resources.ResourceManager resourceMan;
private static global::System.Globalization.CultureInfo resourceCulture;
[global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
internal SR() {
}
/// <summary>
/// Returns the cached ResourceManager instance used by this class.
/// </summary>
[global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
internal static global::System.Resources.ResourceManager ResourceManager {
get {
if (object.ReferenceEquals(resourceMan, null)) {
global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("Connected.Collections.SR", typeof(SR).Assembly);
resourceMan = temp;
}
return resourceMan;
}
}
/// <summary>
/// Overrides the current thread's CurrentUICulture property for all
/// resource lookups using this strongly typed resource class.
/// </summary>
[global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
internal static global::System.Globalization.CultureInfo Culture {
get {
return resourceCulture;
}
set {
resourceCulture = value;
}
}
/// <summary>
/// Looks up a localized string similar to Cannot create queued dispatcher.
/// </summary>
internal static string ErrCreateQueuedDispatcher {
get {
return ResourceManager.GetString("ErrCreateQueuedDispatcher", resourceCulture);
}
}
/// <summary>
/// Looks up a localized string similar to Cannot create service instance.
/// </summary>
internal static string ErrCreateService {
get {
return ResourceManager.GetString("ErrCreateService", resourceCulture);
}
}
/// <summary>
/// Looks up a localized string similar to Iterator does not have current value.
/// </summary>
internal static string ErrIteratorCurrentNull {
get {
return ResourceManager.GetString("ErrIteratorCurrentNull", resourceCulture);
}
}
}
}

@ -0,0 +1,129 @@
<?xml version="1.0" encoding="utf-8"?>
<root>
<!--
Microsoft ResX Schema
Version 2.0
The primary goals of this format is to allow a simple XML format
that is mostly human readable. The generation and parsing of the
various data types are done through the TypeConverter classes
associated with the data types.
Example:
... ado.net/XML headers & schema ...
<resheader name="resmimetype">text/microsoft-resx</resheader>
<resheader name="version">2.0</resheader>
<resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
<resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
<data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
<data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
<data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
<value>[base64 mime encoded serialized .NET Framework object]</value>
</data>
<data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
<value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
<comment>This is a comment</comment>
</data>
There are any number of "resheader" rows that contain simple
name/value pairs.
Each data row contains a name, and value. The row also contains a
type or mimetype. Type corresponds to a .NET class that support
text/value conversion through the TypeConverter architecture.
Classes that don't support this are serialized and stored with the
mimetype set.
The mimetype is used for serialized objects, and tells the
ResXResourceReader how to depersist the object. This is currently not
extensible. For a given mimetype the value must be set accordingly:
Note - application/x-microsoft.net.object.binary.base64 is the format
that the ResXResourceWriter will generate, however the reader can
read any of the formats listed below.
mimetype: application/x-microsoft.net.object.binary.base64
value : The object must be serialized with
: System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
: and then encoded with base64 encoding.
mimetype: application/x-microsoft.net.object.soap.base64
value : The object must be serialized with
: System.Runtime.Serialization.Formatters.Soap.SoapFormatter
: and then encoded with base64 encoding.
mimetype: application/x-microsoft.net.object.bytearray.base64
value : The object must be serialized into a byte array
: using a System.ComponentModel.TypeConverter
: and then encoded with base64 encoding.
-->
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
<xsd:complexType>
<xsd:choice maxOccurs="unbounded">
<xsd:element name="metadata">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="value" type="xsd:string" minOccurs="0" />
</xsd:sequence>
<xsd:attribute name="name" use="required" type="xsd:string" />
<xsd:attribute name="type" type="xsd:string" />
<xsd:attribute name="mimetype" type="xsd:string" />
<xsd:attribute ref="xml:space" />
</xsd:complexType>
</xsd:element>
<xsd:element name="assembly">
<xsd:complexType>
<xsd:attribute name="alias" type="xsd:string" />
<xsd:attribute name="name" type="xsd:string" />
</xsd:complexType>
</xsd:element>
<xsd:element name="data">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
<xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
<xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
<xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
<xsd:attribute ref="xml:space" />
</xsd:complexType>
</xsd:element>
<xsd:element name="resheader">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required" />
</xsd:complexType>
</xsd:element>
</xsd:choice>
</xsd:complexType>
</xsd:element>
</xsd:schema>
<resheader name="resmimetype">
<value>text/microsoft-resx</value>
</resheader>
<resheader name="version">
<value>2.0</value>
</resheader>
<resheader name="reader">
<value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
</resheader>
<resheader name="writer">
<value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
</resheader>
<data name="ErrCreateQueuedDispatcher" xml:space="preserve">
<value>Cannot create queued dispatcher</value>
</data>
<data name="ErrCreateService" xml:space="preserve">
<value>Cannot create service instance</value>
</data>
<data name="ErrIteratorCurrentNull" xml:space="preserve">
<value>Iterator does not have current value</value>
</data>
</root>

@ -0,0 +1,14 @@
{
"$schema": "https://raw.githubusercontent.com/dotnet/Nerdbank.GitVersioning/main/src/NerdBank.GitVersioning/version.schema.json",
"version": "1.0-prerelease",
"semVer1NumericIdentifierPadding": 4,
"nugetPackageVersion": {
"semVer": 2, // optional. Set to either 1 or 2 to control how the NuGet package version string is generated. Default is 1.
"precision": "build" // optional. Use when you want to use a more or less precise package version than the default major.minor.build.
},
"cloudBuild": {
"buildNumber": {
"enabled": true
}
}
}

@ -0,0 +1,11 @@
namespace Connected.Configuration.Authentication;
internal class AuthenticationConfiguration : IAuthenticationConfiguration
{
public AuthenticationConfiguration()
{
JwToken = new JwTokenConfiguration();
}
public IJwTokenConfiguration JwToken { get; }
}

@ -0,0 +1,6 @@
namespace Connected.Configuration.Authentication;
public interface IAuthenticationConfiguration
{
IJwTokenConfiguration JwToken { get; }
}

@ -0,0 +1,10 @@
namespace Connected.Configuration.Authentication
{
public interface IJwTokenConfiguration
{
string Issuer { get; }
string Audience { get; }
string Key { get; }
int Duration { get; }
}
}

@ -0,0 +1,13 @@
namespace Connected.Configuration.Authentication
{
internal class JwTokenConfiguration : IJwTokenConfiguration
{
public string? Issuer { get; set; }
public string? Audience { get; set; }
public string? Key { get; set; } = "D78RF30487F4G0F8Z34F834F";
public int Duration { get; set; } = 30;
}
}

@ -0,0 +1,25 @@
using Connected.Configuration.Authentication;
using Connected.Configuration.Endpoints;
using Microsoft.Extensions.Configuration;
namespace Connected.Configuration;
internal class ConfigurationService : IConfigurationService
{
public ConfigurationService(IConfiguration configuration)
{
Endpoint = new EndpointConfiguration(configuration.GetSection("endpoint"));
Storage = new StorageConfiguration(configuration.GetSection("storage"));
}
public IEndpointConfiguration Endpoint { get; }
public IAuthenticationConfiguration Authentication => throw new NotImplementedException();
public IStorageConfiguration Storage { get; }
/*
* TODO: hardcoded
*/
public ProcessType Type => ProcessType.BackEnd;
}

@ -0,0 +1,16 @@
using Connected.Annotations;
using Connected.Configuration.Environment;
using Microsoft.Extensions.DependencyInjection;
[assembly: MicroService(MicroServiceType.Sys)]
namespace Connected.Configuration;
internal class ConfigurationStart : Startup
{
protected override void OnConfigureServices(IServiceCollection services)
{
services.AddSingleton(typeof(IConfigurationService), typeof(ConfigurationService));
services.AddSingleton(typeof(IEnvironmentService), typeof(EnvironmentService));
}
}

@ -0,0 +1,7 @@
namespace Connected.Configuration
{
public static class ConfigurationUrls
{
public const string Settings = "/configuration/settings";
}
}

@ -0,0 +1,48 @@
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net7.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
<GeneratePackageOnBuild>True</GeneratePackageOnBuild>
<Title>$(AssemblyName)</Title>
<Authors>Tom PIT ltd</Authors>
<Copyright>2022 Tom PIT ltd</Copyright>
<PackageProjectUrl>https://git.tompit.com/Connected/Info</PackageProjectUrl>
<PackageReadmeFile>README.md</PackageReadmeFile>
<PackageTags>connected;platform;</PackageTags>
<IncludeSymbols>True</IncludeSymbols>
<SymbolPackageFormat>snupkg</SymbolPackageFormat>
<PackageLicenseFile>LICENSE</PackageLicenseFile>
<PackageOutputPath>$(OutputPath)</PackageOutputPath>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Connected.Runtime" Version="1.0.*-*" />
<PackageReference Include="Nerdbank.GitVersioning"
Version="3.5.119"
PrivateAssets="all"
Condition="!Exists('packages.config')" />
</ItemGroup>
<ItemGroup>
<None Include="..\..\LICENSE">
<Pack>True</Pack>
<PackagePath>\</PackagePath>
</None>
<None Include="..\..\README.md">
<Pack>True</Pack>
<PackagePath>\</PackagePath>
</None>
</ItemGroup>
<Target Name="CopyPackages" AfterTargets="Pack">
<Copy SourceFiles="$(OutputPath)..\$(PackageId).$(PackageVersion).nupkg" DestinationFolder="$([System.Environment]::GetEnvironmentVariable('LOCAL_NUGET'))" />
<Copy SourceFiles="$(OutputPath)..\$(PackageId).$(PackageVersion).snupkg" DestinationFolder="$([System.Environment]::GetEnvironmentVariable('LOCAL_NUGET'))" />
</Target>
<Target Name="UploadLocalPackages" AfterTargets="CopyPackages" >
<Exec Command="dotnet nuget push -s LocalNugetServer $(OutputPath)..\$(PackageId).$(PackageVersion).nupkg --api-key $([System.Environment]::GetEnvironmentVariable('LOCAL_NUGET_SERVER_TOKEN'))" IgnoreExitCode="true"></Exec>
<Exec Command="dotnet nuget push -s LocalNugetServer $(OutputPath)..\$(PackageId).$(PackageVersion).snupkg --api-key $([System.Environment]::GetEnvironmentVariable('LOCAL_NUGET_SERVER_TOKEN'))" IgnoreExitCode="true"></Exec>
</Target>
</Project>

@ -0,0 +1,22 @@
using System.Collections.Immutable;
using Microsoft.Extensions.Configuration;
namespace Connected.Configuration
{
internal class DatabaseConfiguration : IDatabaseConfiguration
{
private readonly List<string> _shards;
public DatabaseConfiguration(IConfiguration configuration)
{
DefaultConnectionString = "";
_shards = new();
configuration.Bind(this);
configuration.Bind("shards", _shards);
}
public string? DefaultConnectionString { get; init; }
public ImmutableList<string> Shards => _shards.ToImmutableList();
}
}

@ -0,0 +1,14 @@
using Microsoft.Extensions.Configuration;
namespace Connected.Configuration.Endpoints
{
internal sealed class EndpointConfiguration : IEndpointConfiguration
{
public EndpointConfiguration(IConfiguration configuration)
{
configuration.Bind(this);
}
public string? Address { get; set; }
}
}

@ -0,0 +1,7 @@
namespace Connected.Configuration.Endpoints
{
public interface IEndpointConfiguration
{
string Address { get; }
}
}

@ -0,0 +1,33 @@
using System.Collections.Immutable;
using System.Reflection;
using Connected.Annotations;
namespace Connected.Configuration.Environment;
internal class EnvironmentService : IEnvironmentService
{
private List<Assembly>? _assemblies;
public List<Assembly> All => _assemblies ??= QueryAssemblies();
public EnvironmentService()
{
Services = new EnvironmentServices();
}
public ImmutableList<Assembly> MicroServices => All.ToImmutableList();
public IEnvironmentServices Services { get; }
private static List<Assembly> QueryAssemblies()
{
var result = new List<Assembly>();
foreach (var assembly in AppDomain.CurrentDomain.GetAssemblies())
{
if (assembly.GetCustomAttribute<MicroServiceAttribute>() is not null)
result.Add(assembly);
}
return result;
}
}

@ -0,0 +1,17 @@
using System.Collections.Immutable;
namespace Connected.Configuration.Environment
{
internal class EnvironmentServices : IEnvironmentServices
{
public ImmutableList<Type> Services => RegisteredServices.Services;
public ImmutableList<Type> ServiceMethods => RegisteredServices.ServiceOperations;
public ImmutableList<Type> Arguments => RegisteredServices.Arguments;
public ImmutableList<Type> IoCEndpoints => RegisteredServices.Middleware;
public ImmutableList<Type> EntityCache => RegisteredServices.EntityCache;
}
}

@ -0,0 +1,12 @@
using System.Collections.Immutable;
using System.Reflection;
namespace Connected.Configuration.Environment
{
public interface IEnvironmentService
{
ImmutableList<Assembly> MicroServices { get; }
IEnvironmentServices Services { get; }
}
}

@ -0,0 +1,13 @@
using System.Collections.Immutable;
namespace Connected.Configuration.Environment
{
public interface IEnvironmentServices
{
ImmutableList<Type> Services { get; }
ImmutableList<Type> ServiceMethods { get; }
ImmutableList<Type> Arguments { get; }
ImmutableList<Type> IoCEndpoints { get; }
ImmutableList<Type> EntityCache { get; }
}
}

@ -0,0 +1,21 @@
using Connected.Configuration.Authentication;
using Connected.Configuration.Endpoints;
namespace Connected.Configuration;
public enum ProcessType
{
FrontEnd = 1,
BackEnd = 2,
Service = 3
}
public interface IConfigurationService
{
IEndpointConfiguration Endpoint { get; }
IAuthenticationConfiguration Authentication { get; }
IStorageConfiguration Storage { get; }
ProcessType Type { get; }
}

@ -0,0 +1,11 @@
using System.Collections.Immutable;
namespace Connected.Configuration
{
public interface IDatabaseConfiguration
{
string? DefaultConnectionString { get; }
ImmutableList<string> Shards { get; }
}
}

@ -0,0 +1,7 @@
namespace Connected.Configuration
{
public interface IStorageConfiguration
{
IDatabaseConfiguration Databases { get; }
}
}

@ -0,0 +1,56 @@
using System.Collections.Immutable;
namespace Connected.Configuration
{
public static class RegisteredServices
{
private static readonly List<Type> _services;
private static readonly List<Type> _serviceOperations;
private static readonly List<Type> _arguments;
private static readonly List<Type> _middleware;
private static readonly List<Type> _entityCache;
static RegisteredServices()
{
_services = new List<Type>();
_serviceOperations = new List<Type>();
_arguments = new List<Type>();
_middleware = new List<Type>();
_entityCache = new List<Type>();
}
public static ImmutableList<Type> Services => _services.ToImmutableList();
public static ImmutableList<Type> ServiceOperations => _serviceOperations.ToImmutableList();
public static ImmutableList<Type> Arguments => _arguments.ToImmutableList();
public static ImmutableList<Type> Middleware => _middleware.ToImmutableList();
public static ImmutableList<Type> EntityCache => _entityCache.ToImmutableList();
public static void AddApiService(Type type)
{
_services.Add(type);
}
public static void AddApi(Type type)
{
_serviceOperations.Add(type);
}
public static void AddArgument(Type type)
{
_arguments.Add(type);
}
public static void AddMiddleware(Type type)
{
_middleware.Add(type);
}
public static void AddEntityCache(Type type)
{
_entityCache.Add(type);
}
}
}

@ -0,0 +1,9 @@
using Connected.Data;
namespace Connected.Configuration.Settings;
public interface ISetting : IPrimaryKey<int>
{
string Name { get; init; }
string Value { get; init; }
}

@ -0,0 +1,25 @@
using System.Collections.Immutable;
using Connected.Annotations;
using Connected.ServiceModel;
namespace Connected.Configuration.Settings;
[Service]
[ServiceUrl(ConfigurationUrls.Settings)]
public interface ISettingsService
{
[ServiceMethod(ServiceMethodVerbs.Get | ServiceMethodVerbs.Post)]
Task<ISetting?> Select(PrimaryKeyArgs<int> args);
[ServiceMethod(ServiceMethodVerbs.Get | ServiceMethodVerbs.Post)]
Task<ISetting?> Select(NameArgs args);
[ServiceMethod(ServiceMethodVerbs.Get)]
Task<ImmutableList<ISetting>> Query();
[ServiceMethod(ServiceMethodVerbs.Post | ServiceMethodVerbs.Patch)]
Task Update(SettingsArgs args);
[ServiceMethod(ServiceMethodVerbs.Post | ServiceMethodVerbs.Delete)]
Task Delete(PrimaryKeyArgs<int> args);
}

@ -0,0 +1,14 @@
using System.ComponentModel.DataAnnotations;
using Connected.ServiceModel;
namespace Connected.Configuration.Settings;
public class SettingsArgs : Dto
{
[Required]
[MaxLength(128)]
public string? Name { get; set; }
[MaxLength(1024)]
public string? Value { get; set; }
}

@ -0,0 +1,14 @@
using Microsoft.Extensions.Configuration;
namespace Connected.Configuration
{
internal class StorageConfiguration : IStorageConfiguration
{
public StorageConfiguration(IConfiguration configuration)
{
Databases = new DatabaseConfiguration(configuration.GetSection("databases"));
}
public IDatabaseConfiguration Databases { get; }
}
}

@ -0,0 +1,14 @@
{
"$schema": "https://raw.githubusercontent.com/dotnet/Nerdbank.GitVersioning/main/src/NerdBank.GitVersioning/version.schema.json",
"version": "1.0-prerelease",
"semVer1NumericIdentifierPadding": 4,
"nugetPackageVersion": {
"semVer": 2, // optional. Set to either 1 or 2 to control how the NuGet package version string is generated. Default is 1.
"precision": "build" // optional. Use when you want to use a more or less precise package version than the default major.minor.build.
},
"cloudBuild": {
"buildNumber": {
"enabled": true
}
}
}

@ -0,0 +1,15 @@
using Connected.Entities.Annotations;
namespace Connected.Data.Annotations;
[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field, AllowMultiple = true)]
internal sealed class ColumnAttribute : MemberAttribute
{
public string? Name { get; set; }
public string? TableId { get; set; }
public string? DbType { get; set; }
public bool IsComputed { get; set; }
public bool IsPrimaryKey { get; set; }
public bool IsGenerated { get; set; }
public bool IsReadOnly { get; set; }
}

@ -0,0 +1,8 @@
namespace Connected.Data.Annotations
{
[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field)]
internal class MemberExtensionAttribute : Attribute
{
public string TableId { get; set; }
}
}

@ -0,0 +1,9 @@
using Connected.Entities.Annotations;
namespace Connected.Data.Annotations;
[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field, AllowMultiple = true)]
internal class NestedEntityAttribute : MemberAttribute
{
public Type? RuntimeType { get; set; }
}

@ -0,0 +1,70 @@
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net7.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
<GeneratePackageOnBuild>True</GeneratePackageOnBuild>
<Title>$(AssemblyName)</Title>
<Authors>Tom PIT ltd</Authors>
<Copyright>2022 Tom PIT ltd</Copyright>
<PackageProjectUrl>https://git.tompit.com/Connected/Info</PackageProjectUrl>
<PackageReadmeFile>README.md</PackageReadmeFile>
<PackageTags>connected;platform;</PackageTags>
<IncludeSymbols>True</IncludeSymbols>
<SymbolPackageFormat>snupkg</SymbolPackageFormat>
<PackageLicenseFile>LICENSE</PackageLicenseFile>
<PackageOutputPath>$(OutputPath)</PackageOutputPath>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Connected.Caching" Version="1.0.*-*" />
<PackageReference Include="Connected.Entities" Version="1.0.*-*" />
<PackageReference Include="Connected.Expressions" Version="1.0.*-*" />
<PackageReference Include="Connected.Globalization" Version="1.0.*-*" />
<PackageReference Include="Connected.Interop" Version="1.0.*-*" />
<PackageReference Include="Connected.Threading" Version="1.0.*-*" />
<PackageReference Include="Connected.Validation" Version="1.0.*-*" />
<PackageReference Include="Microsoft.Data.SqlClient" Version="5.1.*-*" />
<PackageReference Include="Nerdbank.GitVersioning"
Version="3.5.119"
PrivateAssets="all"
Condition="!Exists('packages.config')" />
</ItemGroup>
<ItemGroup>
<Compile Update="SR.Designer.cs">
<DesignTime>True</DesignTime>
<AutoGen>True</AutoGen>
<DependentUpon>SR.resx</DependentUpon>
</Compile>
</ItemGroup>
<ItemGroup>
<EmbeddedResource Update="SR.resx">
<Generator>ResXFileCodeGenerator</Generator>
<LastGenOutput>SR.Designer.cs</LastGenOutput>
</EmbeddedResource>
</ItemGroup>
<ItemGroup>
<None Include="..\..\LICENSE">
<Pack>True</Pack>
<PackagePath>\</PackagePath>
</None>
<None Include="..\..\README.md">
<Pack>True</Pack>
<PackagePath>\</PackagePath>
</None>
</ItemGroup>
<Target Name="CopyPackages" AfterTargets="Pack">
<Copy SourceFiles="$(OutputPath)..\$(PackageId).$(PackageVersion).nupkg" DestinationFolder="$([System.Environment]::GetEnvironmentVariable('LOCAL_NUGET'))" />
<Copy SourceFiles="$(OutputPath)..\$(PackageId).$(PackageVersion).snupkg" DestinationFolder="$([System.Environment]::GetEnvironmentVariable('LOCAL_NUGET'))" />
</Target>
<Target Name="UploadLocalPackages" AfterTargets="CopyPackages" >
<Exec Command="dotnet nuget push -s LocalNugetServer $(OutputPath)..\$(PackageId).$(PackageVersion).nupkg --api-key $([System.Environment]::GetEnvironmentVariable('LOCAL_NUGET_SERVER_TOKEN'))" IgnoreExitCode="true"></Exec>
<Exec Command="dotnet nuget push -s LocalNugetServer $(OutputPath)..\$(PackageId).$(PackageVersion).snupkg --api-key $([System.Environment]::GetEnvironmentVariable('LOCAL_NUGET_SERVER_TOKEN'))" IgnoreExitCode="true"></Exec>
</Target>
</Project>

@ -0,0 +1,100 @@
using Connected.Data.Storage;
using Connected.Entities.Annotations;
using Connected.Entities.Storage;
using Connected.Interop;
using Connected.ServiceModel;
using System.Data;
using System.Reflection;
namespace Connected.Data;
public static class DataExtensions
{
/// <summary>
/// Sets <see cref="StorageConnectionMode.Isolated"/> value to the <see cref="IConnectionProvider"/> on the
/// provided <see cref="IContext"/>.
/// </summary>
/// <param name="context">The <see cref="IContext"/> to set the <see cref="StorageConnectionMode.Isolated"/> value.</param>
public static void UseIsolatedConnections(this IContext context)
{
if (context.GetService<IConnectionProvider>() is IConnectionProvider provider)
provider.Mode = StorageConnectionMode.Isolated;
}
public static DbType ToDbType(PropertyInfo property)
{
var type = property.PropertyType;
if (type.IsEnum)
type = Enum.GetUnderlyingType(type);
if (type == typeof(char) || type == typeof(string))
{
if (property.FindAttribute<ETagAttribute>() != null)
return DbType.Binary;
var str = property.FindAttribute<StringAttribute>();
if (str is null)
return DbType.String;
return str.Kind switch
{
StringKind.NVarChar => DbType.String,
StringKind.VarChar => DbType.AnsiString,
StringKind.Char => DbType.AnsiStringFixedLength,
StringKind.NChar => DbType.StringFixedLength,
_ => DbType.String,
};
}
else if (type == typeof(byte))
return DbType.Byte;
else if (type == typeof(bool))
return DbType.Boolean;
else if (type == typeof(DateTime) || type == typeof(DateTimeOffset))
{
var att = property.FindAttribute<DateAttribute>();
if (att is null)
return DbType.DateTime2;
return att.Kind switch
{
DateKind.Date => DbType.Date,
DateKind.DateTime => DbType.DateTime,
DateKind.DateTime2 => DbType.DateTime2,
DateKind.SmallDateTime => DbType.DateTime,
DateKind.Time => DbType.Time,
_ => DbType.DateTime2,
};
}
else if (type == typeof(decimal))
return DbType.Decimal;
else if (type == typeof(double))
return DbType.Double;
else if (type == typeof(Guid))
return DbType.Guid;
else if (type == typeof(short))
return DbType.Int16;
else if (type == typeof(int))
return DbType.Int32;
else if (type == typeof(long))
return DbType.Int64;
else if (type == typeof(sbyte))
return DbType.SByte;
else if (type == typeof(float))
return DbType.Single;
else if (type == typeof(TimeSpan))
return DbType.Time;
else if (type == typeof(ushort))
return DbType.UInt16;
else if (type == typeof(uint))
return DbType.UInt32;
else if (type == typeof(ulong))
return DbType.UInt64;
else if (type == typeof(byte[]))
return DbType.Binary;
else
return DbType.Binary;
}
}

@ -0,0 +1,23 @@
using Connected.Annotations;
using Connected.Data.DataProtection;
using Connected.Data.Schema;
using Connected.Data.Sharding;
using Connected.Data.Storage;
using Connected.Entities.Storage;
using Microsoft.Extensions.DependencyInjection;
[assembly: MicroService(MicroServiceType.Sys)]
namespace Connected.Data;
internal sealed class DataStartup : Startup
{
protected override void OnConfigureServices(IServiceCollection services)
{
services.AddScoped(typeof(ISchemaService), typeof(SchemaService));
services.AddScoped(typeof(IShardingService), typeof(ShardingService));
services.AddScoped(typeof(IConnectionProvider), typeof(ConnectionProvider));
services.AddScoped(typeof(IStorageProvider), typeof(StorageProvider));
services.AddScoped(typeof(IEntityProtectionService), typeof(EntityProtectionService));
}
}

@ -0,0 +1,14 @@
using Connected.Entities;
namespace Connected.Data.EntityProtection;
public sealed class EntityProtectionArgs<TEntity> : EventArgs
{
public EntityProtectionArgs(TEntity entity, State state)
{
Entity = entity;
State = state;
}
public TEntity Entity { get; }
public State State { get; }
}

@ -0,0 +1,25 @@
using Connected.Data.EntityProtection;
using Connected.Middleware;
namespace Connected.Data.DataProtection;
internal class EntityProtectionService : IEntityProtectionService
{
public EntityProtectionService(IMiddlewareService middleware)
{
Middleware = middleware;
}
public IMiddlewareService Middleware { get; }
public async Task Invoke<TEntity>(EntityProtectionArgs<TEntity> args)
{
var middleware = await Middleware.Query<IEntityProtector<TEntity>>();
if (!middleware.Any())
return;
foreach (var m in middleware)
await m.Invoke(args);
}
}

@ -0,0 +1,9 @@
using Connected.Data.EntityProtection;
namespace Connected.Data.DataProtection
{
public interface IEntityProtectionService
{
Task Invoke<TEntity>(EntityProtectionArgs<TEntity> args);
}
}

@ -0,0 +1,8 @@
using Connected.Data.EntityProtection;
namespace Connected.Data.DataProtection;
public interface IEntityProtector<TEntity> : IMiddleware
{
Task Invoke(EntityProtectionArgs<TEntity> args);
}

@ -0,0 +1,125 @@
using Connected.Interop;
namespace Connected.Data;
internal class EntityVersion : IComparable, IEquatable<EntityVersion>, IComparable<EntityVersion>
{
public static readonly EntityVersion? Zero = default;
private readonly ulong Value;
private EntityVersion(ulong value)
{
Value = value;
}
public static EntityVersion? Parse(object value)
{
if (!TypeConversion.TryConvert(value, out string? v))
return Zero;
if (string.IsNullOrWhiteSpace(v))
return Zero;
return new EntityVersion(Convert.ToUInt64(v, 16));
}
public static implicit operator EntityVersion(ulong value)
{
return new EntityVersion(value);
}
public static implicit operator EntityVersion(long value)
{
return new EntityVersion(unchecked((ulong)value));
}
public static explicit operator EntityVersion?(byte[] value)
{
if (value is null)
return null;
return new EntityVersion((ulong)value[0] << 56 | (ulong)value[1] << 48 | (ulong)value[2] << 40 | (ulong)value[3] << 32 | (ulong)value[4] << 24 | (ulong)value[5] << 16 | (ulong)value[6] << 8 | value[7]);
}
public static implicit operator byte[](EntityVersion timestamp)
{
var r = new byte[8];
r[0] = (byte)(timestamp.Value >> 56);
r[1] = (byte)(timestamp.Value >> 48);
r[2] = (byte)(timestamp.Value >> 40);
r[3] = (byte)(timestamp.Value >> 32);
r[4] = (byte)(timestamp.Value >> 24);
r[5] = (byte)(timestamp.Value >> 16);
r[6] = (byte)(timestamp.Value >> 8);
r[7] = (byte)timestamp.Value;
return r;
}
public override bool Equals(object? obj)
{
return obj is Version version && Equals(version);
}
public override int GetHashCode()
{
return Value.GetHashCode();
}
public bool Equals(EntityVersion? other)
{
return other?.Value == Value;
}
int IComparable.CompareTo(object? obj)
{
return obj is null ? 1 : CompareTo((EntityVersion)obj);
}
public int CompareTo(EntityVersion? other)
{
return Value == other?.Value ? 0 : Value < other?.Value ? -1 : 1;
}
public static bool operator ==(EntityVersion comparand1, EntityVersion comparand2)
{
return comparand1.Equals(comparand2);
}
public static bool operator !=(EntityVersion comparand1, EntityVersion comparand2)
{
return !comparand1.Equals(comparand2);
}
public static bool operator >(EntityVersion comparand1, EntityVersion comparand2)
{
return comparand1.CompareTo(comparand2) > 0;
}
public static bool operator >=(EntityVersion comparand1, EntityVersion comparand2)
{
return comparand1.CompareTo(comparand2) >= 0;
}
public static bool operator <(EntityVersion comparand1, EntityVersion comparand2)
{
return comparand1.CompareTo(comparand2) < 0;
}
public static bool operator <=(EntityVersion comparand1, EntityVersion comparand2)
{
return comparand1.CompareTo(comparand2) <= 0;
}
public override string ToString()
{
return Value.ToString("x16");
}
public static EntityVersion Max(EntityVersion comparand1, EntityVersion comparand2)
{
return comparand1.Value < comparand2.Value ? comparand2 : comparand1;
}
}

@ -0,0 +1,192 @@
using Connected.Entities.Annotations;
using Connected.Interop;
using System.Data;
using System.Reflection;
namespace Connected.Data;
/// <summary>
/// Performs mapping between <see cref="IDataReader"/> fields and entity properties.
/// </summary>
/// <typeparam name="TEntity">The entity type to be used.</typeparam>
internal class FieldMappings<TEntity>
{
private Dictionary<int, PropertyInfo> _properties;
/// <summary>
/// Creates a new <see cref="FieldMappings{TEntity}"/> object.
/// </summary>
/// <param name="reader">The <see cref="IDataReader"/> providing entity records.</param>
public FieldMappings(IDataReader reader)
{
Initialize(reader);
}
/// <summary>
/// Cached properties use when looping through the records.
/// </summary>
private Dictionary<int, PropertyInfo> Properties => _properties;
/// <summary>
/// Initializes the mappings base on the provided <see cref="IDataReader"/>
/// and <typeparamref name="TEntity"/>
/// </summary>
/// <param name="reader">The active reader containing records.</param>
private void Initialize(IDataReader reader)
{
/*
* For primitive types there are no mappings since it's an scalar call.
*/
if (typeof(TEntity).IsTypePrimitive())
return;
_properties = new Dictionary<int, PropertyInfo>();
/*
* We are binding only properties, not fields.
*/
var properties = typeof(TEntity).GetProperties(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
for (var i = 0; i < reader.FieldCount; i++)
{
if (FieldMappings<TEntity>.ResolveProperty(properties, reader.GetName(i)) is PropertyInfo property)
_properties.Add(i, property);
}
}
/// <summary>
/// Creates a new instance of the <see cref="TEntity"/> and binds
/// properties from the provided <see cref="IDataReader"/>.
/// </summary>
/// <param name="reader">The <see cref="IDataReader"/> containing the record.</param>
/// <returns>A new instance of the <see cref="TEntity"/> with bound values from the <see cref="IDataReader"/>.</returns>
public TEntity? CreateInstance(IDataReader reader)
{
/*
* For primitive return values we'll use only the first field and return itž
* to the caller.
*/
if (typeof(TEntity).IsTypePrimitive())
{
if (reader.FieldCount == 0)
return default;
if (TypeConversion.TryConvert(reader[0], out TEntity? result))
return result;
return default;
}
/*
* It's an actual entity. First, create a new instance. Entities should have
* public parameterless constructor.
*/
if (typeof(TEntity?).CreateInstance<TEntity>() is not TEntity instance)
throw new NullReferenceException(typeof(TEntity).FullName);
foreach (var property in Properties)
Bind(instance, property, reader);
return instance;
}
/// <summary>
/// Resolves a correct property from the entity's properties based on a <see cref="IDataReader"/> field name.
/// </summary>
/// <param name="properties">The entity's properties.</param>
/// <param name="name">The <see cref="IDataReader"/> field name.</param>
/// <returns>A <see cref="PropertyInfo"/> if found, <c>null</c> otherwise.</returns>
private static PropertyInfo? ResolveProperty(PropertyInfo[] properties, string name)
{
/*
* There are two ways to map a property (evaluated in the following order):
* 1. from property name
* 2. from MemberAttribute
*
* We'll first perform case insensitive comparison because fields in the database are usually stored in a camelCase format.
*/
if (properties.FirstOrDefault(f => string.Equals(f.Name, name, StringComparison.OrdinalIgnoreCase)) is PropertyInfo property && property.CanWrite)
{
/*
* Property is found, examine if the persistence from the storage is supported.
*/
var att = property.FindAttribute<PersistenceAttribute>();
if (att is null || att.Persistence.HasFlag(ColumnPersistence.Read))
return property;
}
/*
* Property wasn't found, let's try to find it via MemberAttribute.
*/
foreach (var prop in properties)
{
/*
* It's case insensitive comparison again because we don't want bother user with exact matching. Since a database is probably case insensitive anyway
* there is no option to store columns with case sensitive names.
*/
if (prop.FindAttribute<MemberAttribute>() is MemberAttribute nameAttribute && string.Compare(nameAttribute.Member, name, true) == 0 && prop.CanWrite)
return prop;
}
/*
* Property could't be found. The field will be ognored when reading data.
*/
return default;
}
/// <summary>
/// Binds the <see cref="IDataReader"/> value to the entity's property.
/// </summary>
/// <param name="instance">The instance of the entity.</param>
/// <param name="property">The property on which value to be set.</param>
/// <param name="reader">The <see cref="IDataReader"/>providing the value.</param>
private static void Bind(object instance, KeyValuePair<int, PropertyInfo> property, IDataReader reader)
{
var value = reader.GetValue(property.Key);
/*
* We won't bind null values. We'll leave the property as is.
*/
if (value is null || Convert.IsDBNull(value))
return;
/*
* We have a few exceptions when binding values.
*/
if (property.Value.PropertyType == typeof(string) && value is byte[] bv)
{
/*
* If the property is string and the reader's value is byte array we are probably dealing
* with Consistency field. We'll first check if the property contains the attribute. If so,
* we'll convert byte array to eTag kind of value. If not we'll simply convert value to base64
* string.
*/
if (property.Value.FindAttribute<ETagAttribute>() is not null)
{
var versionValue = (EntityVersion?)bv;
if (versionValue is null)
value = Convert.ToBase64String(bv);
else
value = versionValue.ToString();
}
else
value = Convert.ToBase64String(bv);
}
else if (property.Value.PropertyType == typeof(DateTimeOffset))
{
/*
* We don't perform any conversions on dates. All dates should be stored in a UTC
* format so we simply set the correct kind of date so it can be later correctly
* converted
*/
value = new DateTimeOffset(DateTime.SpecifyKind((DateTime)value, DateTimeKind.Utc));
}
else if (property.Value.PropertyType == typeof(DateTime))
{
/*
* Like DateTimeOffset, the same is true for DateTime values
*/
value = DateTime.SpecifyKind((DateTime)value, DateTimeKind.Utc);
}
else
{
/*
* For other values we just perform a conversion.
*/
value = TypeConversion.Convert(value, property.Value.PropertyType);
}
/*
* Now bind the property from the converted value.
*/
property.Value.SetValue(instance, value);
}
}

@ -0,0 +1,72 @@
//------------------------------------------------------------------------------
// <auto-generated>
// This code was generated by a tool.
// Runtime Version:4.0.30319.42000
//
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------
namespace Connected.Data {
using System;
/// <summary>
/// A strongly-typed resource class, for looking up localized strings, etc.
/// </summary>
// This class was auto-generated by the StronglyTypedResourceBuilder
// class via a tool like ResGen or Visual Studio.
// To add or remove a member, edit your .ResX file then rerun ResGen
// with the /str option, or rebuild your VS project.
[global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "17.0.0.0")]
[global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
[global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
internal class SR {
private static global::System.Resources.ResourceManager resourceMan;
private static global::System.Globalization.CultureInfo resourceCulture;
[global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
internal SR() {
}
/// <summary>
/// Returns the cached ResourceManager instance used by this class.
/// </summary>
[global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
internal static global::System.Resources.ResourceManager ResourceManager {
get {
if (object.ReferenceEquals(resourceMan, null)) {
global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("Connected.Data.SR", typeof(SR).Assembly);
resourceMan = temp;
}
return resourceMan;
}
}
/// <summary>
/// Overrides the current thread's CurrentUICulture property for all
/// resource lookups using this strongly typed resource class.
/// </summary>
[global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
internal static global::System.Globalization.CultureInfo Culture {
get {
return resourceCulture;
}
set {
resourceCulture = value;
}
}
/// <summary>
/// Looks up a localized string similar to Data concurrency issue occured.
/// </summary>
internal static string ErrDataConcurrency {
get {
return ResourceManager.GetString("ErrDataConcurrency", resourceCulture);
}
}
}
}

@ -0,0 +1,123 @@
<?xml version="1.0" encoding="utf-8"?>
<root>
<!--
Microsoft ResX Schema
Version 2.0
The primary goals of this format is to allow a simple XML format
that is mostly human readable. The generation and parsing of the
various data types are done through the TypeConverter classes
associated with the data types.
Example:
... ado.net/XML headers & schema ...
<resheader name="resmimetype">text/microsoft-resx</resheader>
<resheader name="version">2.0</resheader>
<resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
<resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
<data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
<data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
<data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
<value>[base64 mime encoded serialized .NET Framework object]</value>
</data>
<data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
<value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
<comment>This is a comment</comment>
</data>
There are any number of "resheader" rows that contain simple
name/value pairs.
Each data row contains a name, and value. The row also contains a
type or mimetype. Type corresponds to a .NET class that support
text/value conversion through the TypeConverter architecture.
Classes that don't support this are serialized and stored with the
mimetype set.
The mimetype is used for serialized objects, and tells the
ResXResourceReader how to depersist the object. This is currently not
extensible. For a given mimetype the value must be set accordingly:
Note - application/x-microsoft.net.object.binary.base64 is the format
that the ResXResourceWriter will generate, however the reader can
read any of the formats listed below.
mimetype: application/x-microsoft.net.object.binary.base64
value : The object must be serialized with
: System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
: and then encoded with base64 encoding.
mimetype: application/x-microsoft.net.object.soap.base64
value : The object must be serialized with
: System.Runtime.Serialization.Formatters.Soap.SoapFormatter
: and then encoded with base64 encoding.
mimetype: application/x-microsoft.net.object.bytearray.base64
value : The object must be serialized into a byte array
: using a System.ComponentModel.TypeConverter
: and then encoded with base64 encoding.
-->
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
<xsd:complexType>
<xsd:choice maxOccurs="unbounded">
<xsd:element name="metadata">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="value" type="xsd:string" minOccurs="0" />
</xsd:sequence>
<xsd:attribute name="name" use="required" type="xsd:string" />
<xsd:attribute name="type" type="xsd:string" />
<xsd:attribute name="mimetype" type="xsd:string" />
<xsd:attribute ref="xml:space" />
</xsd:complexType>
</xsd:element>
<xsd:element name="assembly">
<xsd:complexType>
<xsd:attribute name="alias" type="xsd:string" />
<xsd:attribute name="name" type="xsd:string" />
</xsd:complexType>
</xsd:element>
<xsd:element name="data">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
<xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
<xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
<xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
<xsd:attribute ref="xml:space" />
</xsd:complexType>
</xsd:element>
<xsd:element name="resheader">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required" />
</xsd:complexType>
</xsd:element>
</xsd:choice>
</xsd:complexType>
</xsd:element>
</xsd:schema>
<resheader name="resmimetype">
<value>text/microsoft-resx</value>
</resheader>
<resheader name="version">
<value>2.0</value>
</resheader>
<resheader name="reader">
<value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
</resheader>
<resheader name="writer">
<value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
</resheader>
<data name="ErrDataConcurrency" xml:space="preserve">
<value>Data concurrency issue occured</value>
</data>
</root>

@ -0,0 +1,38 @@
namespace Connected.Data.Schema
{
internal class EntitySchema : ISchema
{
public EntitySchema()
{
Columns = new();
}
public List<ISchemaColumn> Columns { get; }
public string? Schema { get; set; }
public string? Name { get; set; }
public string? Type { get; set; }
public bool Ignore { get; set; }
public bool Equals(ISchema? other)
{
if (other is null)
return false;
if (!string.Equals(Name, other.Name, StringComparison.Ordinal))
return false;
if (!string.Equals(Schema, other.Schema, StringComparison.Ordinal))
return false;
if (Columns.Count != other.Columns.Count)
return false;
for (var i = 0; i < Columns.Count; i++)
{
if (Columns[i] is not IEquatable<ISchemaColumn> left || !left.Equals(other.Columns[i]))
return false;
}
return true;
}
}
}

@ -0,0 +1,64 @@
using System.Collections.Immutable;
using System.Data;
using System.Reflection;
using Connected.Data.Schema.Sql;
using Connected.Entities.Annotations;
namespace Connected.Data.Schema;
internal class ExistingColumn : ISchemaColumn, IExistingSchemaColumn
{
public ExistingColumn(ISchema schema)
{
Schema = schema;
}
private ISchema Schema { get; }
public string Name { get; set; }
public DbType DataType { get; set; }
public bool IsIdentity { get; set; }
public bool IsVersion { get; set; }
public bool IsUnique { get; set; }
public bool IsIndex { get; set; }
public bool IsPrimaryKey { get; set; }
public string DefaultValue { get; set; }
public int MaxLength { get; set; }
public bool IsNullable { get; set; }
public string DependencyType { get; set; }
public string DependencyProperty { get; set; }
public string Index { get; set; }
public int Precision { get; set; }
public int Scale { get; set; }
public DateKind DateKind { get; set; } = DateKind.DateTime;
public BinaryKind BinaryKind { get; set; } = BinaryKind.VarBinary;
public PropertyInfo Property { get; set; }
public int DatePrecision { get; set; }
public ImmutableArray<string> QueryIndexColumns(string column)
{
if (Schema is not ExistingSchema existing)
return ImmutableArray<string>.Empty;
foreach (var index in existing.Indexes)
{
if (index.Columns.Contains(column, StringComparer.OrdinalIgnoreCase))
return index.Columns.ToImmutableArray();
}
return ImmutableArray<string>.Empty;
}
}

@ -0,0 +1,7 @@
namespace Connected.Data.Schema
{
internal interface IDatabase
{
List<ITable> Tables { get; }
}
}

@ -0,0 +1,9 @@
using System.Collections.Immutable;
namespace Connected.Data.Schema
{
internal interface IExistingSchemaColumn
{
ImmutableArray<string> QueryIndexColumns(string column);
}
}

@ -0,0 +1,12 @@
namespace Connected.Data.Schema
{
internal interface IReferentialConstraint
{
string Name { get; }
string ReferenceSchema { get; }
string ReferenceName { get; }
string MatchOption { get; }
string UpdateRule { get; }
string DeleteRule { get; }
}
}

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