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106 changes: 106 additions & 0 deletions
106
Common/src/DynamicLoading/CollocatedAssemblyResolver.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| // This file is part of the ArmoniK project | ||
| // | ||
| // Copyright (C) ANEO, 2021-2024. All rights reserved. | ||
| // | ||
| // 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 <http://www.gnu.org/licenses/>. | ||
|
|
||
| using System; | ||
| using System.Collections.Concurrent; | ||
| using System.IO; | ||
| using System.Reflection; | ||
|
|
||
| using Microsoft.Extensions.Logging; | ||
|
|
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| namespace ArmoniK.Core.Common.DynamicLoading; | ||
|
|
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| public class CollocatedAssemblyResolver | ||
| { | ||
| private static readonly ConcurrentDictionary<string, bool> PathDictionary = new(); | ||
| private readonly ILogger logger_; | ||
|
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|
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| public CollocatedAssemblyResolver(ILogger logger) | ||
| { | ||
| GetLoadDirectories(); | ||
| logger_ = logger; | ||
| } | ||
|
|
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| private static void GetLoadDirectories() | ||
| { | ||
| AppDomain.CurrentDomain.AssemblyLoad += (_, | ||
| eventArgs) => | ||
| { | ||
| var path = Path.GetDirectoryName(eventArgs.LoadedAssembly.Location); | ||
| if (path == null) | ||
| { | ||
| return; | ||
| } | ||
|
|
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| PathDictionary[path] = true; | ||
| }; | ||
|
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| PathDictionary[Path.GetDirectoryName(Assembly.GetCallingAssembly() | ||
| .Location)!] = true; | ||
|
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| PathDictionary[Path.GetDirectoryName(typeof(CollocatedAssemblyResolver).Assembly.Location)!] = true; | ||
| } | ||
|
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| public Assembly? AssemblyResolve(object? sender, | ||
| ResolveEventArgs args) | ||
| { | ||
| logger_.LogDebug("RequestingAssembly {RequestingAssembly}", | ||
| args.RequestingAssembly); | ||
|
|
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| if (args.RequestingAssembly?.Location is null) | ||
| { | ||
| return null; | ||
| } | ||
|
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| var assemblyName = new AssemblyName(args.Name).Name; | ||
|
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| if (string.IsNullOrEmpty(assemblyName)) | ||
| { | ||
| logger_.LogWarning("The assembly to resolve {AssemblyToResolve} does not have a name", | ||
| args.Name); | ||
| return null; | ||
| } | ||
|
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| var directoryName = Path.GetDirectoryName(args.RequestingAssembly.Location); | ||
|
|
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| if (!string.IsNullOrEmpty(directoryName)) | ||
| { | ||
| PathDictionary[directoryName] = true; | ||
| } | ||
|
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| foreach (var path in PathDictionary.Keys) | ||
| { | ||
| var assemblyPath = Path.Combine(path, | ||
| assemblyName + ".dll"); | ||
|
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| if (File.Exists(assemblyPath)) | ||
| { | ||
| logger_.LogDebug("Loading assembly {Assembly} from {Directory}", | ||
| assemblyName, | ||
| path); | ||
| return Assembly.LoadFile(assemblyPath); | ||
| } | ||
|
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| logger_.LogDebug("Assembly {Assembly} not found in {Directory}", | ||
| assemblyName, | ||
| path); | ||
| } | ||
|
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| return null; | ||
| } | ||
| } |
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