Major renaming of Physics dlls / folders. No functional changes, just renames.

1 files changed, 242 insertions, 0 deletions

diff --git a/OpenSim/Region/PhysicsModules/SharedBase/PhysicsPluginManager.cs b/OpenSim/Region/PhysicsModules/SharedBase/PhysicsPluginManager.cs
new file mode 100644
index 0000000..d8279b7
--- /dev/null
+++ b/OpenSim/Region/PhysicsModules/SharedBase/PhysicsPluginManager.cs
@@ -0,0 +1,242 @@
+/*
+ * 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.IO;
+using System.Reflection;
+using Nini.Config;
+using log4net;
+using OpenSim.Framework;
+using OpenMetaverse;
+
+namespace OpenSim.Region.Physics.Manager
+{
+    /// <summary>
+    /// Description of MyClass.
+    /// </summary>
+    public class PhysicsPluginManager
+    {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        private Dictionary<string, IPhysicsPlugin> _PhysPlugins = new Dictionary<string, IPhysicsPlugin>();
+        private Dictionary<string, IMeshingPlugin> _MeshPlugins = new Dictionary<string, IMeshingPlugin>();
+
+        /// <summary>
+        /// Constructor.
+        /// </summary>
+        public PhysicsPluginManager()
+        {
+            // Load "plugins", that are hard coded and not existing in form of an external lib, and hence always 
+            // available
+            IMeshingPlugin plugHard;
+            plugHard = new ZeroMesherPlugin();
+            _MeshPlugins.Add(plugHard.GetName(), plugHard);
+            
+            m_log.Info("[PHYSICS]: Added meshing engine: " + plugHard.GetName());
+        }
+
+        /// <summary>
+        /// Get a physics scene for the given physics engine and mesher.
+        /// </summary>
+        /// <param name="physEngineName"></param>
+        /// <param name="meshEngineName"></param>
+        /// <param name="config"></param>
+        /// <returns></returns>
+        public PhysicsScene GetPhysicsScene(string physEngineName, string meshEngineName,
+                                    IConfigSource config, string regionName, Vector3 regionExtent)
+        {
+            if (String.IsNullOrEmpty(physEngineName))
+            {
+                return PhysicsScene.Null;
+            }
+
+            if (String.IsNullOrEmpty(meshEngineName))
+            {
+                return PhysicsScene.Null;
+            }
+
+            IMesher meshEngine = null;
+            if (_MeshPlugins.ContainsKey(meshEngineName))
+            {
+                m_log.Info("[PHYSICS]: creating meshing engine " + meshEngineName);
+                meshEngine = _MeshPlugins[meshEngineName].GetMesher(config);
+            }
+            else
+            {
+                m_log.WarnFormat("[PHYSICS]: couldn't find meshingEngine: {0}", meshEngineName);
+                throw new ArgumentException(String.Format("couldn't find meshingEngine: {0}", meshEngineName));
+            }
+
+            if (_PhysPlugins.ContainsKey(physEngineName))
+            {
+                m_log.Info("[PHYSICS]: creating " + physEngineName);
+                PhysicsScene result = _PhysPlugins[physEngineName].GetScene(regionName);
+                result.Initialise(meshEngine, config, regionExtent);
+                return result;
+            }
+            else
+            {
+                m_log.WarnFormat("[PHYSICS]: couldn't find physicsEngine: {0}", physEngineName);
+                throw new ArgumentException(String.Format("couldn't find physicsEngine: {0}", physEngineName));
+            }
+        }
+
+        /// <summary>
+        /// Load all plugins in assemblies at the given path
+        /// </summary>
+        /// <param name="pluginsPath"></param>
+        public void LoadPluginsFromAssemblies(string assembliesPath)
+        {
+            // Walk all assemblies (DLLs effectively) and see if they are home
+            // of a plugin that is of interest for us
+            string[] pluginFiles = Directory.GetFiles(assembliesPath, "*.dll");
+
+            for (int i = 0; i < pluginFiles.Length; i++)
+            {
+                LoadPluginsFromAssembly(pluginFiles[i]);
+            }
+        }
+
+        /// <summary>
+        /// Load plugins from an assembly at the given path
+        /// </summary>
+        /// <param name="assemblyPath"></param>
+        public void LoadPluginsFromAssembly(string assemblyPath)
+        {
+            // TODO / NOTE
+            // The assembly named 'OpenSim.Region.Physics.BasicPhysicsPlugin' was loaded from
+            // 'file:///C:/OpenSim/trunk2/bin/Physics/OpenSim.Region.Physics.BasicPhysicsPlugin.dll'
+            // using the LoadFrom context. The use of this context can result in unexpected behavior
+            // for serialization, casting and dependency resolution. In almost all cases, it is recommended
+            // that the LoadFrom context be avoided. This can be done by installing assemblies in the
+            // Global Assembly Cache or in the ApplicationBase directory and using Assembly.
+            // Load when explicitly loading assemblies.
+            Assembly pluginAssembly = null;
+            Type[] types = null;
+
+            try
+            {
+                pluginAssembly = Assembly.LoadFrom(assemblyPath);
+            }
+            catch (Exception ex)
+            {
+                m_log.Error("[PHYSICS]: Failed to load plugin from " + assemblyPath, ex);
+            }
+
+            if (pluginAssembly != null)
+            {
+                try
+                {
+                    types = pluginAssembly.GetTypes();
+                }
+                catch (ReflectionTypeLoadException ex)
+                {
+                    m_log.Error("[PHYSICS]: Failed to enumerate types in plugin from " + assemblyPath + ": " +
+                        ex.LoaderExceptions[0].Message, ex);
+                }
+                catch (Exception ex)
+                {
+                    m_log.Error("[PHYSICS]: Failed to enumerate types in plugin from " + assemblyPath, ex);
+                }
+
+                if (types != null)
+                {
+                    foreach (Type pluginType in types)
+                    {
+                        if (pluginType.IsPublic)
+                        {
+                            if (!pluginType.IsAbstract)
+                            {
+                                Type physTypeInterface = pluginType.GetInterface("IPhysicsPlugin");
+
+                                if (physTypeInterface != null)
+                                {
+                                    IPhysicsPlugin plug =
+                                        (IPhysicsPlugin)Activator.CreateInstance(pluginAssembly.GetType(pluginType.ToString()));
+                                    plug.Init();
+                                    if (!_PhysPlugins.ContainsKey(plug.GetName()))
+                                    {
+                                        _PhysPlugins.Add(plug.GetName(), plug);
+                                        m_log.Info("[PHYSICS]: Added physics engine: " + plug.GetName());
+                                    }
+                                }
+
+                                Type meshTypeInterface = pluginType.GetInterface("IMeshingPlugin");
+
+                                if (meshTypeInterface != null)
+                                {
+                                    IMeshingPlugin plug =
+                                        (IMeshingPlugin)Activator.CreateInstance(pluginAssembly.GetType(pluginType.ToString()));
+                                    if (!_MeshPlugins.ContainsKey(plug.GetName()))
+                                    {
+                                        _MeshPlugins.Add(plug.GetName(), plug);
+                                        m_log.Info("[PHYSICS]: Added meshing engine: " + plug.GetName());
+                                    }
+                                }
+
+                                physTypeInterface = null;
+                                meshTypeInterface = null;
+                            }
+                        }
+                    }
+                }
+            }
+
+            pluginAssembly = null;
+        }
+
+        //---
+        public static void PhysicsPluginMessage(string message, bool isWarning)
+        {
+            if (isWarning)
+            {
+                m_log.Warn("[PHYSICS]: " + message);
+            }
+            else
+            {
+                m_log.Info("[PHYSICS]: " + message);
+            }
+        }
+
+        //---
+    }
+
+    public interface IPhysicsPlugin
+    {
+        bool Init();
+        PhysicsScene GetScene(String sceneIdentifier);
+        string GetName();
+        void Dispose();
+    }
+
+    public interface IMeshingPlugin
+    {
+        string GetName();
+        IMesher GetMesher(IConfigSource config);
+    }
+}