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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.CodeDom.Compiler;
30using System.Collections.Generic;
31using libTerrain;
32using Microsoft.CSharp;
33using Microsoft.JScript;
34
35namespace OpenSim.Region.Terrain
36{
37 public interface ITerrainFilter
38 {
39 void Filter(Channel heightmap, string[] args);
40 string Register();
41 string Help();
42 }
43
44 public class TestFilter : ITerrainFilter
45 {
46 public void Filter(Channel heightmap, string[] args)
47 {
48 Console.WriteLine("Hello world");
49 }
50
51 public string Register()
52 {
53 return "demofilter";
54 }
55
56 public string Help()
57 {
58 return "demofilter - Does nothing";
59 }
60 }
61
62 public class FilterHost
63 {
64 public Dictionary<string, ITerrainFilter> filters = new Dictionary<string, ITerrainFilter>();
65
66 private void LoadFilter(CodeDomProvider compiler, string filename)
67 {
68 CompilerParameters compilerParams = new CompilerParameters();
69 CompilerResults compilerResults;
70 compilerParams.GenerateExecutable = false;
71 compilerParams.GenerateInMemory = true;
72 compilerParams.IncludeDebugInformation = false;
73 compilerParams.ReferencedAssemblies.Add("libTerrain-BSD.dll");
74 compilerParams.ReferencedAssemblies.Add("OpenSim.Terrain.BasicTerrain.dll");
75 compilerParams.ReferencedAssemblies.Add("System.dll");
76
77 compilerResults = compiler.CompileAssemblyFromFile(compilerParams, filename);
78
79 if (compilerResults.Errors.Count > 0)
80 {
81 Console.WriteLine("Compile errors:");
82 foreach (CompilerError error in compilerResults.Errors)
83 {
84 Console.WriteLine(error.Line.ToString() + ": " + error.ErrorText.ToString());
85 }
86 }
87 else
88 {
89 foreach (Type pluginType in compilerResults.CompiledAssembly.GetExportedTypes())
90 {
91 Type testInterface = pluginType.GetInterface("ITerrainFilter",true);
92
93 if (testInterface != null)
94 {
95 ITerrainFilter filter = (ITerrainFilter)compilerResults.CompiledAssembly.CreateInstance(pluginType.ToString());
96
97 string filterName = filter.Register();
98 Console.WriteLine("Plugin: " + filterName + " loaded.");
99
100 if (!filters.ContainsKey(filterName))
101 {
102 filters.Add(filterName, filter);
103 }
104 else
105 {
106 filters[filterName] = filter;
107 }
108 }
109 }
110 }
111
112 }
113
114 public void LoadFilterCSharp(string filename)
115 {
116 CSharpCodeProvider compiler = new CSharpCodeProvider();
117 LoadFilter(compiler, filename);
118 }
119
120 public void LoadFilterJScript(string filename)
121 {
122 JScriptCodeProvider compiler = new JScriptCodeProvider();
123 LoadFilter(compiler, filename);
124 }
125 }
126}