clockwerk-opensim-stable – Blame information for rev 1

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1 vero 1 /*
2 * Copyright (c) Contributors, http://opensimulator.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 OpenSimulator 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  
28 using log4net;
29 using System;
30 using System.IO;
31 using System.Collections.Generic;
32 using System.Reflection;
33 using Mono.Addins;
34 using Nini.Config;
35 using OpenSim.Framework;
36 using OpenSim.Region.Framework.Interfaces;
37 using OpenSim.Region.Framework.Scenes;
38 using OpenSim.Services.Interfaces;
39  
40 namespace OpenSim.Region.CoreModules.Asset
41 {
42 [Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "CoreAssetCache")]
43 public class CoreAssetCache : ISharedRegionModule, IImprovedAssetCache
44 {
45 private static readonly ILog m_log =
46 LogManager.GetLogger(
47 MethodBase.GetCurrentMethod().DeclaringType);
48  
49 private bool m_Enabled;
50 private Cache m_Cache;
51  
52 public string Name
53 {
54 get { return "CoreAssetCache"; }
55 }
56  
57 public Type ReplaceableInterface
58 {
59 get { return null; }
60 }
61  
62 public void Initialise(IConfigSource source)
63 {
64 IConfig moduleConfig = source.Configs["Modules"];
65  
66 if (moduleConfig != null)
67 {
68 string name = moduleConfig.GetString("AssetCaching");
69 //m_log.DebugFormat("[XXX] name = {0} (this module's name: {1}", name, Name);
70  
71 if (name == Name)
72 {
73 IConfig assetConfig = source.Configs["AssetCache"];
74 if (assetConfig == null)
75 {
76 m_log.Error("[ASSET CACHE]: AssetCache missing from OpenSim.ini");
77 return;
78 }
79  
80 m_Cache = new Cache(CacheMedium.Memory, CacheStrategy.Aggressive, CacheFlags.AllowUpdate);
81 m_Enabled = true;
82  
83 m_log.Info("[ASSET CACHE]: Core asset cache enabled");
84  
85 m_Cache.Size = assetConfig.GetInt("CacheBuckets", 32768);
86 }
87 }
88 }
89  
90 public void PostInitialise()
91 {
92 }
93  
94 public void Close()
95 {
96 }
97  
98 public void AddRegion(Scene scene)
99 {
100 if (m_Enabled)
101 scene.RegisterModuleInterface<IImprovedAssetCache>(this);
102 }
103  
104 public void RemoveRegion(Scene scene)
105 {
106 }
107  
108 public void RegionLoaded(Scene scene)
109 {
110 }
111  
112 ////////////////////////////////////////////////////////////
113 // IImprovedAssetCache
114 //
115  
116 public void Cache(AssetBase asset)
117 {
118 if (asset != null)
119 m_Cache.Store(asset.ID, asset);
120 }
121  
122 public AssetBase Get(string id)
123 {
124 return (AssetBase)m_Cache.Get(id);
125 }
126  
127 public void Expire(string id)
128 {
129 m_Cache.Invalidate(id);
130 }
131  
132 public void Clear()
133 {
134 m_Cache.Clear();
135 }
136 }
137 }