/* * Copyright (c) Contributors, http://opensimulator.org/ * See CONTRIBUTORS.TXT for a full list of copyright holders. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of the OpenSimulator Project nor the * names of its contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ using System; using System.Collections.Generic; using System.Reflection; using log4net; using Nini.Config; using OpenSim.Services.Interfaces; namespace OpenSim.Services.Base { public class ServiceBase { private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); public T LoadPlugin<T>(string dllName) where T:class { return LoadPlugin<T>(dllName, new Object[0]); } public T LoadPlugin<T>(string dllName, Object[] args) where T:class { string[] parts = dllName.Split(new char[] {':'}); dllName = parts[0]; string className = String.Empty; if (parts.Length > 1) className = parts[1]; return LoadPlugin<T>(dllName, className, args); } public T LoadPlugin<T>(string dllName, string className, Object[] args) where T:class { string interfaceName = typeof(T).ToString(); try { Assembly pluginAssembly = Assembly.LoadFrom(dllName); // m_log.DebugFormat("[SERVICE BASE]: Found assembly {0}", dllName); foreach (Type pluginType in pluginAssembly.GetTypes()) { // m_log.DebugFormat("[SERVICE BASE]: Found type {0}", pluginType); if (pluginType.IsPublic) { if (className != String.Empty && pluginType.ToString() != pluginType.Namespace + "." + className) continue; Type typeInterface = pluginType.GetInterface(interfaceName, true); if (typeInterface != null) { T plug = (T)Activator.CreateInstance(pluginType, args); return plug; } } } return null; } catch (Exception e) { List<string> strArgs = new List<string>(); foreach (Object arg in args) strArgs.Add(arg.ToString()); m_log.Error( string.Format( "[SERVICE BASE]: Failed to load plugin {0} from {1} with args {2}", interfaceName, dllName, string.Join(", ", strArgs.ToArray())), e); return null; } } public ServiceBase(IConfigSource config) { } } }