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1/*
2* Copyright (c) Contributors, http://www.openmetaverse.org/
3* See CONTRIBUTORS.TXT for a full list of copyright holders.
4*
5* Redistribution and use in source and binary forms, with or without
6* modification, are permitted provided that the following conditions are met:
7* * Redistributions of source code must retain the above copyright
8* notice, this list of conditions and the following disclaimer.
9* * Redistributions in binary form must reproduce the above copyright
10* notice, this list of conditions and the following disclaimer in the
11* documentation and/or other materials provided with the distribution.
12* * Neither the name of the OpenSim Project nor the
13* names of its contributors may be used to endorse or promote products
14* derived from this software without specific prior written permission.
15*
16* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
17* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26*
27*/
28using System;
29using System.Collections.Generic;
30using System.Text;
31using System.IO;
32using System.Threading;
33using OpenSim.Framework;
34using OpenSim.Framework.Interfaces;
35using OpenSim.Framework.Utilities;
36using OpenSim.Region.Environment.Scenes;
37using OpenSim.Region.ExtensionsScriptModule.JVMEngine.JVM;
38using Thread = OpenSim.Region.ExtensionsScriptModule.JVMEngine.JVM.Thread;
39
40namespace OpenSim.Region.ExtensionsScriptModule.JVMEngine
41{
42 public class JVMScript : IScript
43 {
44 private List<Thread> _threads = new List<Thread>();
45 private BlockingQueue<CompileInfo> CompileScripts = new BlockingQueue<CompileInfo>();
46 private MainMemory _mainMemory;
47
48 ScriptInfo scriptInfo;
49
50 public void Initialise(ScriptInfo info)
51 {
52 scriptInfo = info;
53
54 _mainMemory = new MainMemory();
55 Thread.GlobalMemory = this._mainMemory;
56 Thread.World = info.world;
57 CompileScript();
58
59 scriptInfo.events.OnFrame += new EventManager.OnFrameDelegate(events_OnFrame);
60 scriptInfo.events.OnNewPresence += new EventManager.OnNewPresenceDelegate(events_OnNewPresence);
61 }
62
63 void events_OnNewPresence(ScenePresence presence)
64 {
65 for (int i = 0; i < this._threads.Count; i++)
66 {
67 if (!this._threads[i].running)
68 {
69 this._threads[i].StartMethod("OnNewPresence");
70 bool run = true;
71 while (run)
72 {
73 run = this._threads[i].Excute();
74 }
75 }
76 }
77 }
78
79 void events_OnFrame()
80 {
81 for (int i = 0; i < this._threads.Count; i++)
82 {
83 if (!this._threads[i].running)
84 {
85 this._threads[i].StartMethod("OnFrame");
86 bool run = true;
87 while (run)
88 {
89 run = this._threads[i].Excute();
90 }
91 }
92 }
93 }
94
95 public string Name
96 {
97 get { return "JVM Scripting Engine"; }
98 }
99
100 public void LoadScript(string script)
101 {
102 Console.WriteLine("OpenSimJVM - loading new script: " + script);
103 CompileInfo comp = new CompileInfo();
104 comp.script = script;
105 comp.scriptName = script;
106 this.CompileScripts.Enqueue(comp);
107 }
108
109 public void CompileScript()
110 {
111 CompileInfo comp = this.CompileScripts.Dequeue();
112 string script = comp.script;
113 string scriptName = comp.scriptName;
114 try
115 {
116 //need to compile the script into a java class file
117
118 //first save it to a java source file
119 TextWriter tw = new StreamWriter(scriptName + ".java");
120 tw.WriteLine(script);
121 tw.Close();
122
123 //now compile
124 System.Diagnostics.ProcessStartInfo psi = new System.Diagnostics.ProcessStartInfo("javac.exe", "*.java");
125 // psi.RedirectStandardOutput = true;
126 psi.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
127 psi.UseShellExecute = false;
128
129 System.Diagnostics.Process javacomp;
130 javacomp = System.Diagnostics.Process.Start(psi);
131 javacomp.WaitForExit();
132
133
134 //now load in class file
135 ClassRecord class1 = new ClassRecord();
136 class1.LoadClassFromFile(scriptName + ".class");
137 class1.PrintToConsole();
138 //Console.WriteLine();
139 this._mainMemory.MethodArea.Classes.Add(class1);
140 class1.AddMethodsToMemory(this._mainMemory.MethodArea);
141
142 Thread newThread = new Thread();
143 this._threads.Add(newThread);
144 newThread.currentClass = class1;
145 newThread.scriptInfo = scriptInfo;
146
147 //now delete the created files
148 System.IO.File.Delete(scriptName + ".java");
149 System.IO.File.Delete(scriptName + ".class");
150 //this.OnFrame();
151 }
152 catch (Exception e)
153 {
154 Console.WriteLine("exception");
155 Console.WriteLine(e.StackTrace);
156 Console.WriteLine(e.Message);
157 }
158 }
159
160 private class CompileInfo
161 {
162 public string script;
163 public string scriptName;
164
165 public CompileInfo()
166 {
167
168 }
169 }
170 }
171}