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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;
31
32using System.CodeDom.Compiler;
33using System.CodeDom;
34using Microsoft.CSharp;
35using Microsoft.JScript;
36
37using libTerrain;
38
39namespace OpenSim.Region.Terrain
40{
41 public interface ITerrainFilter
42 {
43 void Filter(Channel heightmap, string[] args);
44 string Register();
45 string Help();
46 }
47
48 public class TestFilter : ITerrainFilter
49 {
50 public void Filter(Channel heightmap, string[] args)
51 {
52 Console.WriteLine("Hello world");
53 }
54
55 public string Register()
56 {
57 return "demofilter";
58 }
59
60 public string Help()
61 {
62 return "demofilter - Does nothing";
63 }
64 }
65
66 public class FilterHost
67 {
68 public Dictionary<string, ITerrainFilter> filters = new Dictionary<string, ITerrainFilter>();
69
70 private void LoadFilter(ICodeCompiler compiler, string filename)
71 {
72 CompilerParameters compilerParams = new CompilerParameters();
73 CompilerResults compilerResults;
74 compilerParams.GenerateExecutable = false;
75 compilerParams.GenerateInMemory = true;
76 compilerParams.IncludeDebugInformation = false;
77 compilerParams.ReferencedAssemblies.Add("libTerrain-BSD.dll");
78 compilerParams.ReferencedAssemblies.Add("OpenSim.Terrain.BasicTerrain.dll");
79 compilerParams.ReferencedAssemblies.Add("System.dll");
80
81 compilerResults = compiler.CompileAssemblyFromFile(compilerParams, filename);
82
83 if (compilerResults.Errors.Count > 0)
84 {
85 Console.WriteLine("Compile errors:");
86 foreach (CompilerError error in compilerResults.Errors)
87 {
88 Console.WriteLine(error.Line.ToString() + ": " + error.ErrorText.ToString());
89 }
90 }
91 else
92 {
93 foreach (Type pluginType in compilerResults.CompiledAssembly.GetExportedTypes())
94 {
95 Type testInterface = pluginType.GetInterface("ITerrainFilter",true);
96
97 if (testInterface != null)
98 {
99 ITerrainFilter filter = (ITerrainFilter)compilerResults.CompiledAssembly.CreateInstance(pluginType.ToString());
100
101 string filterName = filter.Register();
102 Console.WriteLine("Plugin: " + filterName + " loaded.");
103
104 if (!filters.ContainsKey(filterName))
105 {
106 filters.Add(filterName, filter);
107 }
108 else
109 {
110 filters[filterName] = filter;
111 }
112 }
113 }
114 }
115
116 }
117
118 public void LoadFilterCSharp(string filename)
119 {
120 CSharpCodeProvider compiler = new CSharpCodeProvider();
121 LoadFilter(compiler.CreateCompiler(), filename);
122 }
123
124 public void LoadFilterJScript(string filename)
125 {
126 JScriptCodeProvider compiler = new JScriptCodeProvider();
127 LoadFilter(compiler.CreateCompiler(), filename);
128 }
129 }
130}