EXPERIMENTAL: Early commit of new Script Engine Component System

2026-07-08 05:36:27 +08:00 · 2008-09-21 00:03:13 +00:00
parent a8785f5b2c
commit 752d3f3879
28 changed files with 1652 additions and 0 deletions
--- a/OpenSim/ApplicationPlugins/ScriptEngine/ComponentLoader.cs
+++ b/OpenSim/ApplicationPlugins/ScriptEngine/ComponentLoader.cs
@@ -0,0 +1,95 @@
+/*
+ * 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 OpenSim 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 System.Text;
+using log4net;
+using OpenSim.ApplicationPlugins.ScriptEngine.Components;
+
+namespace OpenSim.ApplicationPlugins.ScriptEngine
+{
+    /// <summary>
+    /// Used to load ScriptEngine component .dll's
+    /// </summary>
+    internal class ComponentLoader
+    {
+        internal static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+        private ScriptEnginePlugin scriptEnginePlugin;
+        public ComponentLoader(ScriptEnginePlugin sep)
+        {
+            scriptEnginePlugin = sep;
+        }
+
+        /// <summary>
+        /// Load components from directory
+        /// </summary>
+        /// <param name="directory"></param>
+        public void Load(string directory)
+        {
+            // We may want to change how this functions as currently it required unique class names for each component
+
+            foreach (string file in Directory.GetFiles(directory, "*.dll"))
+            {
+                //m_log.DebugFormat("[ScriptEngine]: Loading: [{0}].", file);
+                Assembly componentAssembly = Assembly.LoadFrom(file);
+                if (componentAssembly != null)
+                {
+                    try
+                    {
+                        // Go through all types in the assembly
+                        foreach (Type componentType in componentAssembly.GetTypes())
+                        {
+                            if (componentType.IsPublic
+                                && !componentType.IsAbstract)
+                            {
+                                if (componentType.IsSubclassOf(typeof (ComponentBase)))
+                                {
+                                    // We have found an type which is derived from ProdiverBase, add it to provider list
+                                    m_log.InfoFormat("[ScriptEngine]: Adding component: {0}", componentType.Name);
+                                    ComponentRegistry.providers.Add(componentType.Name, componentType);
+                                }
+                                if (componentType.IsSubclassOf(typeof(RegionScriptEngineBase)))
+                                {
+                                    // We have found an type which is derived from RegionScriptEngineBase, add it to engine list
+                                    m_log.InfoFormat("[ScriptEngine]: Adding script engine: {0}", componentType.Name);
+                                    ComponentRegistry.scriptEngines.Add(componentType.Name, componentType);
+                                }
+                            }
+                        }
+                    }
+                    catch
+                        (ReflectionTypeLoadException)
+                    {
+                        m_log.InfoFormat("[ScriptEngine]: Could not load types for [{0}].", componentAssembly.FullName);
+                    }
+                } //if
+            } //foreach
+        }
+    }
+}