3879d450b4
added information about OperatingSystem and Version to AddInSystemFactory added IsSupported field to AddIn Creators AddInSystemFactory now only loads supported AddIns added Metadata resource files to all AddIns containing information about supported platforms.
339 lines
14 KiB
C#
339 lines
14 KiB
C#
#region Using Statements
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using System;
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using System.IO;
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using System.Reflection;
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using System.Collections.Generic;
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using System.Linq;
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using ANX.Framework.Input;
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using NLog;
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using System.Collections;
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using System.Resources;
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#endregion // Using Statements
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#region License
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//
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// This file is part of the ANX.Framework created by the "ANX.Framework developer group".
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//
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// This file is released under the Ms-PL license.
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//
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//
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//
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// Microsoft Public License (Ms-PL)
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//
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// This license governs use of the accompanying software. If you use the software, you accept this license.
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// If you do not accept the license, do not use the software.
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//
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// 1.Definitions
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// The terms "reproduce," "reproduction," "derivative works," and "distribution" have the same meaning
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// here as under U.S. copyright law.
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// A "contribution" is the original software, or any additions or changes to the software.
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// A "contributor" is any person that distributes its contribution under this license.
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// "Licensed patents" are a contributor's patent claims that read directly on its contribution.
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//
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// 2.Grant of Rights
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// (A) Copyright Grant- Subject to the terms of this license, including the license conditions and limitations
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// in section 3, each contributor grants you a non-exclusive, worldwide, royalty-free copyright license to
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// reproduce its contribution, prepare derivative works of its contribution, and distribute its contribution
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// or any derivative works that you create.
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// (B) Patent Grant- Subject to the terms of this license, including the license conditions and limitations in
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// section 3, each contributor grants you a non-exclusive, worldwide, royalty-free license under its licensed
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// patents to make, have made, use, sell, offer for sale, import, and/or otherwise dispose of its contribution
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// in the software or derivative works of the contribution in the software.
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//
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// 3.Conditions and Limitations
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// (A) No Trademark License- This license does not grant you rights to use any contributors' name, logo, or trademarks.
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// (B) If you bring a patent claim against any contributor over patents that you claim are infringed by the software, your
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// patent license from such contributor to the software ends automatically.
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// (C) If you distribute any portion of the software, you must retain all copyright, patent, trademark, and attribution
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// notices that are present in the software.
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// (D) If you distribute any portion of the software in source code form, you may do so only under this license by including
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// a complete copy of this license with your distribution. If you distribute any portion of the software in compiled or
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// object code form, you may only do so under a license that complies with this license.
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// (E) The software is licensed "as-is." You bear the risk of using it. The contributors give no express warranties, guarantees,
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// or conditions. You may have additional consumer rights under your local laws which this license cannot change. To the
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// extent permitted under your local laws, the contributors exclude the implied warranties of merchantability, fitness for a
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// particular purpose and non-infringement.
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#endregion // License
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namespace ANX.Framework.NonXNA
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{
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public class AddInSystemFactory
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{
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private Dictionary<String, ICreator> creators;
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private static AddInSystemFactory instance;
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private bool initialized;
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private Dictionary<Type, ICreator> defaultCreators = new Dictionary<Type, ICreator>();
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private OperatingSystem operatingSystem;
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private Version operatingSystemVersion;
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private static Logger logger = LogManager.GetCurrentClassLogger();
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public static AddInSystemFactory Instance
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{
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get
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{
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if (instance == null)
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{
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instance = new AddInSystemFactory();
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logger.Debug("Created AddInSystemFactory instance");
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}
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return instance;
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}
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}
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private AddInSystemFactory()
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{
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this.creators = new Dictionary<string, ICreator>();
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this.operatingSystem = Environment.OSVersion;
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this.operatingSystemVersion = this.operatingSystem.Version;
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logger.Info("Operating System: {0} ({1})", operatingSystem.VersionString, operatingSystemVersion.ToString());
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}
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public void Initialize()
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{
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if (!initialized)
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{
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initialized = true;
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logger.Info("[ANX] Initializing ANX.Framework AddInSystemFactory...");
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String executingAssembly = Assembly.GetExecutingAssembly().Location;
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foreach (String file in Directory.EnumerateFiles(Path.GetDirectoryName(executingAssembly), "*.dll", SearchOption.TopDirectoryOnly))
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{
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if (!file.Equals(executingAssembly))
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{
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logger.Info("[ANX] trying to load '{0}'...", file);
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Assembly part = null;
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try
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{
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part = Assembly.LoadFile(file);
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}
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catch (Exception ex)
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{
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logger.Debug("error calling Assembly.LoadFile({0}) Exception: {1}", file, ex.Message);
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}
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if (part != null)
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{
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logger.Info("[ANX] scanning for ANX interfaces...");
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foreach (Type t in part.GetTypes().Where(p => typeof(IInputSystemCreator).IsAssignableFrom(p) ||
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typeof(IRenderSystemCreator).IsAssignableFrom(p) ||
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typeof(ISoundSystemCreator).IsAssignableFrom(p)
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))
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{
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logger.Info("[ANX] testing if assembly is supported on current platform");
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string[] platforms = FetchSupportedPlattforms(part);
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bool supportedPlatform = false;
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foreach (string platform in platforms)
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{
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if (string.Equals(OperatingSystem.Platform.ToString(), platform, StringComparison.InvariantCultureIgnoreCase))
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{
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supportedPlatform = true;
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break;
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}
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}
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if (supportedPlatform)
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{
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logger.Info("[ANX] registering instance of '{0}'...", t.FullName);
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var instance = part.CreateInstance(t.FullName);
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((ICreator)instance).RegisterCreator(this);
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}
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else
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{
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logger.Info("[ANX] current platform '{0}' is not supported by '{1}'", OperatingSystem.Platform.ToString(), t.FullName);
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}
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}
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}
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}
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}
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SetDefaultCreators();
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}
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}
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public void AddCreator(ICreator creator)
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{
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string creatorName = creator.Name.ToLowerInvariant();
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if (creators.ContainsKey(creatorName))
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{
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throw new Exception("Duplicate creator found. A creator with the name '" + creator.Name + "' was already registered.");
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}
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creators.Add(creatorName, creator);
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}
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public bool HasFramework(String name)
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{
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return creators.ContainsKey(name.ToLowerInvariant());
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}
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public T GetCreator<T>(String name) where T : class, ICreator
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{
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if (!initialized)
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{
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Initialize();
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}
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ICreator creator = null;
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creators.TryGetValue(name.ToLowerInvariant(), out creator);
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return creator as T;
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}
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public IEnumerable<T> GetCreators<T>() where T : class, ICreator
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{
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if (!initialized)
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{
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Initialize();
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}
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Type t = typeof(T);
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foreach (ICreator creator in this.creators.Values)
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{
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if (creator.GetType().GetInterfaces()[0].Equals(t))
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{
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yield return creator as T;
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}
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}
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}
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public T GetDefaultCreator<T>() where T : class, ICreator
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{
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if (!initialized)
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{
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Initialize();
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}
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Type type = typeof(T);
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if (defaultCreators.ContainsKey(type))
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{
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return defaultCreators[type] as T;
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}
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return default(T);
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}
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public void SetDefaultCreator<T>(T creator) where T : class, ICreator
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{
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defaultCreators[typeof(T)] = creator;
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}
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public void SetDefaultCreator(string creatorName)
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{
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if (!initialized)
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{
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Initialize();
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}
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ICreator creator = null;
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creators.TryGetValue(creatorName.ToLowerInvariant(), out creator);
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defaultCreators[creator.GetType().GetInterfaces()[0]] = creator;
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}
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public OperatingSystem OperatingSystem
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{
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get
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{
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return this.operatingSystem;
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}
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}
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public Version OperatingSystemVersion
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{
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get
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{
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return this.operatingSystemVersion;
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}
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}
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private void SetDefaultCreators()
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{
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foreach (ICreator creator in this.creators.Values)
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{
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string type = creator.GetType().GetInterfaces()[0].ToString();
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switch (type)
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{
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case "ANX.Framework.NonXNA.IRenderSystemCreator":
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IRenderSystemCreator renderSystemCreator = creator as IRenderSystemCreator;
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IRenderSystemCreator defaultRenderSystemCreator = GetDefaultCreator<IRenderSystemCreator>();
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if (renderSystemCreator != null && (defaultRenderSystemCreator == null || defaultRenderSystemCreator.Priority > renderSystemCreator.Priority))
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{
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SetDefaultCreator<IRenderSystemCreator>(renderSystemCreator);
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}
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break;
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case "ANX.Framework.NonXNA.ISoundSystemCreator":
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ISoundSystemCreator soundSystemCreator = creator as ISoundSystemCreator;
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ISoundSystemCreator defaultSoundSystemCreator = GetDefaultCreator<ISoundSystemCreator>();
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if (soundSystemCreator != null && (defaultSoundSystemCreator == null || defaultSoundSystemCreator.Priority > soundSystemCreator.Priority))
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{
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SetDefaultCreator<ISoundSystemCreator>(soundSystemCreator);
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}
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break;
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case "ANX.Framework.NonXNA.IInputSystemCreator":
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IInputSystemCreator inputSystemCreator = creator as IInputSystemCreator;
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IInputSystemCreator defaultInputSystemCreator = GetDefaultCreator<IInputSystemCreator>();
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if (inputSystemCreator != null && (defaultInputSystemCreator == null || defaultInputSystemCreator.Priority > inputSystemCreator.Priority))
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{
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SetDefaultCreator<IInputSystemCreator>(inputSystemCreator);
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}
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break;
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case "ANX.Framework.NonXNA.ICreator":
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break;
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default:
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throw new InvalidOperationException(String.Format("unable to set a default system for creator of type '{0}'", type));
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}
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}
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}
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private string[] FetchSupportedPlattforms(Assembly assembly)
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{
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string[] platforms = null;
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string[] res = assembly.GetManifestResourceNames();
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if (res != null)
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{
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foreach (string ressource in res)
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{
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Stream manifestResourceStream = assembly.GetManifestResourceStream(ressource);
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if (manifestResourceStream != null)
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{
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using (ResourceReader resourceReader = new ResourceReader(manifestResourceStream))
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{
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IDictionaryEnumerator dict = resourceReader.GetEnumerator();
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while (dict.MoveNext())
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{
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if (string.Equals(dict.Key.ToString(), "SupportedPlatforms", StringComparison.InvariantCultureIgnoreCase) &&
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dict.Value.GetType() == typeof(string))
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{
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platforms = dict.Value.ToString().Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
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return platforms;
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}
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}
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resourceReader.Close();
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}
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}
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}
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}
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return platforms;
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}
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}
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}
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