opensim-development – Blame information for rev 1
?pathlinks?
Rev | Author | Line No. | Line |
---|---|---|---|
1 | eva | 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 System; |
||
29 | using System.Collections.Generic; |
||
30 | using System.IO; |
||
31 | using System.Reflection; |
||
32 | using Nini.Config; |
||
33 | using log4net; |
||
34 | using OpenSim.Framework; |
||
35 | using OpenSim.Data; |
||
36 | using OpenSim.Services.Interfaces; |
||
37 | using OpenMetaverse; |
||
38 | |||
39 | namespace OpenSim.Services.AssetService |
||
40 | { |
||
41 | /// <summary> |
||
42 | /// A de-duplicating asset service. |
||
43 | /// </summary> |
||
44 | public class XAssetService : XAssetServiceBase, IAssetService |
||
45 | { |
||
46 | private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); |
||
47 | |||
48 | protected static XAssetService m_RootInstance; |
||
49 | |||
50 | public XAssetService(IConfigSource config) : this(config, "AssetService") {} |
||
51 | |||
52 | public XAssetService(IConfigSource config, string configName) : base(config, configName) |
||
53 | { |
||
54 | if (m_RootInstance == null) |
||
55 | { |
||
56 | m_RootInstance = this; |
||
57 | |||
58 | if (m_AssetLoader != null) |
||
59 | { |
||
60 | IConfig assetConfig = config.Configs[configName]; |
||
61 | if (assetConfig == null) |
||
62 | throw new Exception("No AssetService configuration"); |
||
63 | |||
64 | string loaderArgs = assetConfig.GetString("AssetLoaderArgs", String.Empty); |
||
65 | |||
66 | bool assetLoaderEnabled = assetConfig.GetBoolean("AssetLoaderEnabled", true); |
||
67 | |||
68 | if (assetLoaderEnabled && !HasChainedAssetService) |
||
69 | { |
||
70 | m_log.DebugFormat("[XASSET SERVICE]: Loading default asset set from {0}", loaderArgs); |
||
71 | |||
72 | m_AssetLoader.ForEachDefaultXmlAsset( |
||
73 | loaderArgs, |
||
74 | a => |
||
75 | { |
||
76 | AssetBase existingAsset = Get(a.ID); |
||
77 | // AssetMetadata existingMetadata = GetMetadata(a.ID); |
||
78 | |||
79 | if (existingAsset == null || Util.SHA1Hash(existingAsset.Data) != Util.SHA1Hash(a.Data)) |
||
80 | { |
||
81 | // m_log.DebugFormat("[ASSET]: Storing {0} {1}", a.Name, a.ID); |
||
82 | Store(a); |
||
83 | } |
||
84 | }); |
||
85 | } |
||
86 | |||
87 | m_log.Debug("[XASSET SERVICE]: Local asset service enabled"); |
||
88 | } |
||
89 | } |
||
90 | } |
||
91 | |||
92 | public virtual AssetBase Get(string id) |
||
93 | { |
||
94 | // m_log.DebugFormat("[ASSET SERVICE]: Get asset for {0}", id); |
||
95 | |||
96 | UUID assetID; |
||
97 | |||
98 | if (!UUID.TryParse(id, out assetID)) |
||
99 | { |
||
100 | m_log.WarnFormat("[XASSET SERVICE]: Could not parse requested asset id {0}", id); |
||
101 | return null; |
||
102 | } |
||
103 | |||
104 | try |
||
105 | { |
||
106 | AssetBase asset = m_Database.GetAsset(assetID); |
||
107 | |||
108 | if (asset != null) |
||
109 | { |
||
110 | return asset; |
||
111 | } |
||
112 | else if (HasChainedAssetService) |
||
113 | { |
||
114 | asset = m_ChainedAssetService.Get(id); |
||
115 | |||
116 | if (asset != null) |
||
117 | MigrateFromChainedService(asset); |
||
118 | |||
119 | return asset; |
||
120 | } |
||
121 | |||
122 | return null; |
||
123 | } |
||
124 | catch (Exception e) |
||
125 | { |
||
126 | m_log.ErrorFormat("[XASSET SERVICE]: Exception getting asset {0} {1}", assetID, e); |
||
127 | return null; |
||
128 | } |
||
129 | } |
||
130 | |||
131 | public virtual AssetBase GetCached(string id) |
||
132 | { |
||
133 | return Get(id); |
||
134 | } |
||
135 | |||
136 | public virtual AssetMetadata GetMetadata(string id) |
||
137 | { |
||
138 | // m_log.DebugFormat("[XASSET SERVICE]: Get asset metadata for {0}", id); |
||
139 | |||
140 | AssetBase asset = Get(id); |
||
141 | |||
142 | if (asset != null) |
||
143 | return asset.Metadata; |
||
144 | else |
||
145 | return null; |
||
146 | } |
||
147 | |||
148 | public virtual byte[] GetData(string id) |
||
149 | { |
||
150 | // m_log.DebugFormat("[XASSET SERVICE]: Get asset data for {0}", id); |
||
151 | |||
152 | AssetBase asset = Get(id); |
||
153 | |||
154 | if (asset != null) |
||
155 | return asset.Data; |
||
156 | else |
||
157 | return null; |
||
158 | } |
||
159 | |||
160 | public virtual bool Get(string id, Object sender, AssetRetrieved handler) |
||
161 | { |
||
162 | //m_log.DebugFormat("[XASSET SERVICE]: Get asset async {0}", id); |
||
163 | |||
164 | UUID assetID; |
||
165 | |||
166 | if (!UUID.TryParse(id, out assetID)) |
||
167 | return false; |
||
168 | |||
169 | AssetBase asset = Get(id); |
||
170 | |||
171 | //m_log.DebugFormat("[XASSET SERVICE]: Got asset {0}", asset); |
||
172 | |||
173 | handler(id, sender, asset); |
||
174 | |||
175 | return true; |
||
176 | } |
||
177 | |||
178 | public virtual string Store(AssetBase asset) |
||
179 | { |
||
180 | if (!m_Database.ExistsAsset(asset.FullID)) |
||
181 | { |
||
182 | // m_log.DebugFormat( |
||
183 | // "[XASSET SERVICE]: Storing asset {0} {1}, bytes {2}", asset.Name, asset.FullID, asset.Data.Length); |
||
184 | m_Database.StoreAsset(asset); |
||
185 | } |
||
186 | // else |
||
187 | // { |
||
188 | // m_log.DebugFormat( |
||
189 | // "[XASSET SERVICE]: Not storing asset {0} {1}, bytes {2} as it already exists", asset.Name, asset.FullID, asset.Data.Length); |
||
190 | // } |
||
191 | |||
192 | return asset.ID; |
||
193 | } |
||
194 | |||
195 | public bool UpdateContent(string id, byte[] data) |
||
196 | { |
||
197 | return false; |
||
198 | } |
||
199 | |||
200 | public virtual bool Delete(string id) |
||
201 | { |
||
202 | // m_log.DebugFormat("[XASSET SERVICE]: Deleting asset {0}", id); |
||
203 | |||
204 | UUID assetID; |
||
205 | if (!UUID.TryParse(id, out assetID)) |
||
206 | return false; |
||
207 | |||
208 | if (HasChainedAssetService) |
||
209 | m_ChainedAssetService.Delete(id); |
||
210 | |||
211 | return m_Database.Delete(id); |
||
212 | } |
||
213 | |||
214 | private void MigrateFromChainedService(AssetBase asset) |
||
215 | { |
||
216 | Store(asset); |
||
217 | m_ChainedAssetService.Delete(asset.ID); |
||
218 | } |
||
219 | } |
||
220 | } |