From ffd7a6b8c22cd21e355f77fea20b145424e3d912 Mon Sep 17 00:00:00 2001
From: MW
Date: Wed, 11 Apr 2007 09:45:48 +0000
Subject: Changed so that a bin\ScriptEngines\ directory will be searched for
 scripting Engines. Added the work in progress JVM scripting engine.

---
 OpenSim.Scripting.EmbeddedJVM/OpenSimJVM.cs | 133 ++++++++++++++++++++++++++++
 1 file changed, 133 insertions(+)
 create mode 100644 OpenSim.Scripting.EmbeddedJVM/OpenSimJVM.cs

(limited to 'OpenSim.Scripting.EmbeddedJVM/OpenSimJVM.cs')

diff --git a/OpenSim.Scripting.EmbeddedJVM/OpenSimJVM.cs b/OpenSim.Scripting.EmbeddedJVM/OpenSimJVM.cs
new file mode 100644
index 0000000..77a92e5
--- /dev/null
+++ b/OpenSim.Scripting.EmbeddedJVM/OpenSimJVM.cs
@@ -0,0 +1,133 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.IO;
+using System.Threading;
+using OpenSim.Framework;
+using OpenSim.Framework.Interfaces;
+using OpenSim.Framework.Utilities;
+
+namespace OpenSim.Scripting.EmbeddedJVM
+{
+    public class OpenSimJVM : IScriptEngine
+    {
+        private List<Thread> _threads = new List<Thread>();
+        private BlockingQueue<CompileInfo> CompileScripts = new BlockingQueue<CompileInfo>();
+        private MainMemory _mainMemory;
+        private System.Threading.Thread compileThread;
+
+        public OpenSimJVM()
+        {
+
+        }
+
+        public bool Init(IScriptAPI api)
+        {
+            Console.WriteLine("Creating OpenSim JVM scripting engine");
+            _mainMemory = new MainMemory();
+            Thread.GlobalMemory = this._mainMemory;
+            Thread.OpenSimScriptAPI = api;
+            compileThread = new System.Threading.Thread(new ThreadStart(CompileScript));
+            compileThread.IsBackground = true;
+            compileThread.Start();
+            return true;
+        }
+
+        public string GetName()
+        {
+            return "OpenSimJVM";
+        }
+
+        public void LoadScript(string script, string scriptName, uint entityID)
+        {
+            Console.WriteLine("OpenSimJVM - loading new script: " + scriptName);
+            CompileInfo comp = new CompileInfo();
+            comp.entityId = entityID;
+            comp.script = script;
+            comp.scriptName = scriptName;
+            this.CompileScripts.Enqueue(comp);
+        }
+
+        public void CompileScript()
+        {
+            while (true)
+            {
+                CompileInfo comp = this.CompileScripts.Dequeue();
+                string script = comp.script;
+                string scriptName = comp.scriptName;
+                uint entityID = comp.entityId;
+                try
+                {
+                    //need to compile the script into a java class file
+
+                    //first save it to a java source file
+                    TextWriter tw = new StreamWriter(scriptName + ".java");
+                    tw.WriteLine(script);
+                    tw.Close();
+
+                    //now compile
+                    System.Diagnostics.ProcessStartInfo psi = new System.Diagnostics.ProcessStartInfo(@"C:\Program Files\Java\jdk1.6.0_01\bin\javac.exe", "*.java");
+                    psi.RedirectStandardOutput = true;
+                    psi.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
+                    psi.UseShellExecute = false;
+                    System.Diagnostics.Process javacomp;
+                    javacomp = System.Diagnostics.Process.Start(psi);
+                    javacomp.WaitForExit();
+
+                    
+                    //now load in class file
+                    ClassRecord class1 = new ClassRecord();
+                    class1.LoadClassFromFile(scriptName + ".class");
+                    class1.PrintToConsole();
+                    //Console.WriteLine();
+                    this._mainMemory.MethodArea.Classes.Add(class1);
+                    class1.AddMethodsToMemory(this._mainMemory.MethodArea);
+
+                    Thread newThread = new Thread();
+                    this._threads.Add(newThread);
+                    newThread.EntityId = entityID;
+                    newThread.currentClass = class1;
+
+                    //now delete the created files
+                    System.IO.File.Delete(scriptName + ".java");
+                    System.IO.File.Delete(scriptName + ".class");
+                    this.OnFrame();
+                }
+                catch (Exception e)
+                {
+                    Console.WriteLine("exception");
+                    Console.WriteLine(e.StackTrace);
+                    Console.WriteLine(e.Message);
+                }
+            }
+        }
+
+        public void OnFrame()
+        {
+            for (int i = 0; i < this._threads.Count; i++)
+            {
+                if (!this._threads[i].running)
+                {
+                    this._threads[i].StartMethod("OnFrame");
+                    bool run = true;
+                    while (run)
+                    {
+                        run = this._threads[i].Excute();
+                    }
+                }
+            }
+        }
+
+        private class CompileInfo
+        {
+            public string script;
+            public string scriptName;
+            public uint entityId;
+
+            public CompileInfo()
+            {
+
+            }
+        }
+    }
+}
-- 
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