clockwerk-opensim – Blame information for rev 1
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1 | vero | 1 | /* |
2 | * Copyright (c) Contributors, http://opensimulator.org/ |
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3 | * See CONTRIBUTORS.TXT for a full list of copyright holders. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions are met: |
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7 | * * Redistributions of source code must retain the above copyright |
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8 | * notice, this list of conditions and the following disclaimer. |
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9 | * * Redistributions in binary form must reproduce the above copyright |
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10 | * notice, this list of conditions and the following disclaimer in the |
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11 | * documentation and/or other materials provided with the distribution. |
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12 | * * Neither the name of the OpenSimulator Project nor the |
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13 | * names of its contributors may be used to endorse or promote products |
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14 | * derived from this software without specific prior written permission. |
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15 | * |
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16 | * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY |
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17 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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18 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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19 | * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY |
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20 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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21 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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22 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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23 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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25 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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26 | */ |
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27 | |||
28 | using System; |
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29 | using System.Data; |
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30 | using System.Reflection; |
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31 | using System.Collections.Generic; |
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32 | using log4net; |
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33 | #if CSharpSqlite |
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34 | using Community.CsharpSqlite.Sqlite; |
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35 | #else |
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36 | using Mono.Data.Sqlite; |
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37 | #endif |
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38 | |||
39 | using OpenMetaverse; |
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40 | using OpenSim.Framework; |
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41 | |||
42 | namespace OpenSim.Data.SQLite |
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43 | { |
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44 | /// <summary> |
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45 | /// An asset storage interface for the SQLite database system |
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46 | /// </summary> |
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47 | public class SQLiteAssetData : AssetDataBase |
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48 | { |
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49 | private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); |
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50 | |||
51 | private const string SelectAssetSQL = "select * from assets where UUID=:UUID"; |
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52 | private const string SelectAssetMetadataSQL = "select Name, Description, Type, Temporary, asset_flags, UUID, CreatorID from assets limit :start, :count"; |
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53 | private const string DeleteAssetSQL = "delete from assets where UUID=:UUID"; |
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54 | private const string InsertAssetSQL = "insert into assets(UUID, Name, Description, Type, Local, Temporary, asset_flags, CreatorID, Data) values(:UUID, :Name, :Description, :Type, :Local, :Temporary, :Flags, :CreatorID, :Data)"; |
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55 | private const string UpdateAssetSQL = "update assets set Name=:Name, Description=:Description, Type=:Type, Local=:Local, Temporary=:Temporary, asset_flags=:Flags, CreatorID=:CreatorID, Data=:Data where UUID=:UUID"; |
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56 | private const string assetSelect = "select * from assets"; |
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57 | |||
58 | private SqliteConnection m_conn; |
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59 | |||
60 | protected virtual Assembly Assembly |
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61 | { |
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62 | get { return GetType().Assembly; } |
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63 | } |
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64 | |||
65 | override public void Dispose() |
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66 | { |
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67 | if (m_conn != null) |
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68 | { |
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69 | m_conn.Close(); |
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70 | m_conn = null; |
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71 | } |
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72 | } |
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73 | |||
74 | /// <summary> |
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75 | /// <list type="bullet"> |
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76 | /// <item>Initialises AssetData interface</item> |
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77 | /// <item>Loads and initialises a new SQLite connection and maintains it.</item> |
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78 | /// <item>use default URI if connect string is empty.</item> |
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79 | /// </list> |
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80 | /// </summary> |
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81 | /// <param name="dbconnect">connect string</param> |
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82 | override public void Initialise(string dbconnect) |
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83 | { |
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84 | if (Util.IsWindows()) |
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85 | Util.LoadArchSpecificWindowsDll("sqlite3.dll"); |
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86 | |||
87 | if (dbconnect == string.Empty) |
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88 | { |
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89 | dbconnect = "URI=file:Asset.db,version=3"; |
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90 | } |
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91 | m_conn = new SqliteConnection(dbconnect); |
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92 | m_conn.Open(); |
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93 | |||
94 | Migration m = new Migration(m_conn, Assembly, "AssetStore"); |
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95 | m.Update(); |
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96 | |||
97 | return; |
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98 | } |
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99 | |||
100 | /// <summary> |
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101 | /// Fetch Asset |
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102 | /// </summary> |
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103 | /// <param name="uuid">UUID of ... ?</param> |
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104 | /// <returns>Asset base</returns> |
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105 | override public AssetBase GetAsset(UUID uuid) |
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106 | { |
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107 | lock (this) |
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108 | { |
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109 | using (SqliteCommand cmd = new SqliteCommand(SelectAssetSQL, m_conn)) |
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110 | { |
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111 | cmd.Parameters.Add(new SqliteParameter(":UUID", uuid.ToString())); |
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112 | using (IDataReader reader = cmd.ExecuteReader()) |
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113 | { |
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114 | if (reader.Read()) |
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115 | { |
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116 | AssetBase asset = buildAsset(reader); |
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117 | reader.Close(); |
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118 | return asset; |
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119 | } |
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120 | else |
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121 | { |
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122 | reader.Close(); |
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123 | return null; |
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124 | } |
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125 | } |
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126 | } |
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127 | } |
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128 | } |
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129 | |||
130 | /// <summary> |
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131 | /// Create an asset |
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132 | /// </summary> |
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133 | /// <param name="asset">Asset Base</param> |
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134 | override public void StoreAsset(AssetBase asset) |
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135 | { |
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136 | string assetName = asset.Name; |
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137 | if (asset.Name.Length > AssetBase.MAX_ASSET_NAME) |
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138 | { |
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139 | assetName = asset.Name.Substring(0, AssetBase.MAX_ASSET_NAME); |
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140 | m_log.WarnFormat( |
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141 | "[ASSET DB]: Name '{0}' for asset {1} truncated from {2} to {3} characters on add", |
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142 | asset.Name, asset.ID, asset.Name.Length, assetName.Length); |
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143 | } |
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144 | |||
145 | string assetDescription = asset.Description; |
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146 | if (asset.Description.Length > AssetBase.MAX_ASSET_DESC) |
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147 | { |
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148 | assetDescription = asset.Description.Substring(0, AssetBase.MAX_ASSET_DESC); |
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149 | m_log.WarnFormat( |
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150 | "[ASSET DB]: Description '{0}' for asset {1} truncated from {2} to {3} characters on add", |
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151 | asset.Description, asset.ID, asset.Description.Length, assetDescription.Length); |
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152 | } |
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153 | |||
154 | //m_log.Info("[ASSET DB]: Creating Asset " + asset.FullID.ToString()); |
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155 | if (AssetsExist(new[] { asset.FullID })[0]) |
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156 | { |
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157 | //LogAssetLoad(asset); |
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158 | |||
159 | lock (this) |
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160 | { |
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161 | using (SqliteCommand cmd = new SqliteCommand(UpdateAssetSQL, m_conn)) |
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162 | { |
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163 | cmd.Parameters.Add(new SqliteParameter(":UUID", asset.FullID.ToString())); |
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164 | cmd.Parameters.Add(new SqliteParameter(":Name", assetName)); |
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165 | cmd.Parameters.Add(new SqliteParameter(":Description", assetDescription)); |
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166 | cmd.Parameters.Add(new SqliteParameter(":Type", asset.Type)); |
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167 | cmd.Parameters.Add(new SqliteParameter(":Local", asset.Local)); |
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168 | cmd.Parameters.Add(new SqliteParameter(":Temporary", asset.Temporary)); |
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169 | cmd.Parameters.Add(new SqliteParameter(":Flags", asset.Flags)); |
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170 | cmd.Parameters.Add(new SqliteParameter(":CreatorID", asset.Metadata.CreatorID)); |
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171 | cmd.Parameters.Add(new SqliteParameter(":Data", asset.Data)); |
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172 | |||
173 | cmd.ExecuteNonQuery(); |
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174 | } |
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175 | } |
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176 | } |
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177 | else |
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178 | { |
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179 | lock (this) |
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180 | { |
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181 | using (SqliteCommand cmd = new SqliteCommand(InsertAssetSQL, m_conn)) |
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182 | { |
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183 | cmd.Parameters.Add(new SqliteParameter(":UUID", asset.FullID.ToString())); |
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184 | cmd.Parameters.Add(new SqliteParameter(":Name", assetName)); |
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185 | cmd.Parameters.Add(new SqliteParameter(":Description", assetDescription)); |
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186 | cmd.Parameters.Add(new SqliteParameter(":Type", asset.Type)); |
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187 | cmd.Parameters.Add(new SqliteParameter(":Local", asset.Local)); |
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188 | cmd.Parameters.Add(new SqliteParameter(":Temporary", asset.Temporary)); |
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189 | cmd.Parameters.Add(new SqliteParameter(":Flags", asset.Flags)); |
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190 | cmd.Parameters.Add(new SqliteParameter(":CreatorID", asset.Metadata.CreatorID)); |
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191 | cmd.Parameters.Add(new SqliteParameter(":Data", asset.Data)); |
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192 | |||
193 | cmd.ExecuteNonQuery(); |
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194 | } |
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195 | } |
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196 | } |
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197 | } |
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198 | |||
199 | // /// <summary> |
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200 | // /// Some... logging functionnality |
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201 | // /// </summary> |
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202 | // /// <param name="asset"></param> |
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203 | // private static void LogAssetLoad(AssetBase asset) |
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204 | // { |
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205 | // string temporary = asset.Temporary ? "Temporary" : "Stored"; |
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206 | // string local = asset.Local ? "Local" : "Remote"; |
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207 | // |
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208 | // int assetLength = (asset.Data != null) ? asset.Data.Length : 0; |
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209 | // |
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210 | // m_log.Debug("[ASSET DB]: " + |
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211 | // string.Format("Loaded {5} {4} Asset: [{0}][{3}] \"{1}\":{2} ({6} bytes)", |
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212 | // asset.FullID, asset.Name, asset.Description, asset.Type, |
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213 | // temporary, local, assetLength)); |
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214 | // } |
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215 | |||
216 | /// <summary> |
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217 | /// Check if the assets exist in the database. |
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218 | /// </summary> |
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219 | /// <param name="uuids">The assets' IDs</param> |
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220 | /// <returns>For each asset: true if it exists, false otherwise</returns> |
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221 | public override bool[] AssetsExist(UUID[] uuids) |
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222 | { |
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223 | if (uuids.Length == 0) |
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224 | return new bool[0]; |
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225 | |||
226 | HashSet<UUID> exist = new HashSet<UUID>(); |
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227 | |||
228 | string ids = "'" + string.Join("','", uuids) + "'"; |
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229 | string sql = string.Format("select UUID from assets where UUID in ({0})", ids); |
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230 | |||
231 | lock (this) |
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232 | { |
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233 | using (SqliteCommand cmd = new SqliteCommand(sql, m_conn)) |
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234 | { |
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235 | using (IDataReader reader = cmd.ExecuteReader()) |
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236 | { |
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237 | while (reader.Read()) |
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238 | { |
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239 | UUID id = new UUID((string)reader["UUID"]); |
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240 | exist.Add(id); |
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241 | } |
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242 | } |
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243 | } |
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244 | } |
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245 | |||
246 | bool[] results = new bool[uuids.Length]; |
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247 | for (int i = 0; i < uuids.Length; i++) |
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248 | results[i] = exist.Contains(uuids[i]); |
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249 | return results; |
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250 | } |
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251 | |||
252 | /// <summary> |
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253 | /// |
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254 | /// </summary> |
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255 | /// <param name="row"></param> |
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256 | /// <returns></returns> |
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257 | private static AssetBase buildAsset(IDataReader row) |
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258 | { |
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259 | // TODO: this doesn't work yet because something more |
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260 | // interesting has to be done to actually get these values |
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261 | // back out. Not enough time to figure it out yet. |
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262 | AssetBase asset = new AssetBase( |
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263 | new UUID((String)row["UUID"]), |
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264 | (String)row["Name"], |
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265 | Convert.ToSByte(row["Type"]), |
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266 | (String)row["CreatorID"] |
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267 | ); |
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268 | |||
269 | asset.Description = (String) row["Description"]; |
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270 | asset.Local = Convert.ToBoolean(row["Local"]); |
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271 | asset.Temporary = Convert.ToBoolean(row["Temporary"]); |
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272 | asset.Flags = (AssetFlags)Convert.ToInt32(row["asset_flags"]); |
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273 | asset.Data = (byte[])row["Data"]; |
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274 | return asset; |
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275 | } |
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276 | |||
277 | private static AssetMetadata buildAssetMetadata(IDataReader row) |
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278 | { |
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279 | AssetMetadata metadata = new AssetMetadata(); |
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280 | |||
281 | metadata.FullID = new UUID((string) row["UUID"]); |
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282 | metadata.Name = (string) row["Name"]; |
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283 | metadata.Description = (string) row["Description"]; |
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284 | metadata.Type = Convert.ToSByte(row["Type"]); |
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285 | metadata.Temporary = Convert.ToBoolean(row["Temporary"]); // Not sure if this is correct. |
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286 | metadata.Flags = (AssetFlags)Convert.ToInt32(row["asset_flags"]); |
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287 | metadata.CreatorID = row["CreatorID"].ToString(); |
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288 | |||
289 | // Current SHA1s are not stored/computed. |
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290 | metadata.SHA1 = new byte[] {}; |
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291 | |||
292 | return metadata; |
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293 | } |
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294 | |||
295 | /// <summary> |
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296 | /// Returns a list of AssetMetadata objects. The list is a subset of |
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297 | /// the entire data set offset by <paramref name="start" /> containing |
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298 | /// <paramref name="count" /> elements. |
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299 | /// </summary> |
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300 | /// <param name="start">The number of results to discard from the total data set.</param> |
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301 | /// <param name="count">The number of rows the returned list should contain.</param> |
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302 | /// <returns>A list of AssetMetadata objects.</returns> |
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303 | public override List<AssetMetadata> FetchAssetMetadataSet(int start, int count) |
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304 | { |
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305 | List<AssetMetadata> retList = new List<AssetMetadata>(count); |
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306 | |||
307 | lock (this) |
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308 | { |
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309 | using (SqliteCommand cmd = new SqliteCommand(SelectAssetMetadataSQL, m_conn)) |
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310 | { |
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311 | cmd.Parameters.Add(new SqliteParameter(":start", start)); |
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312 | cmd.Parameters.Add(new SqliteParameter(":count", count)); |
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313 | |||
314 | using (IDataReader reader = cmd.ExecuteReader()) |
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315 | { |
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316 | while (reader.Read()) |
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317 | { |
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318 | AssetMetadata metadata = buildAssetMetadata(reader); |
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319 | retList.Add(metadata); |
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320 | } |
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321 | } |
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322 | } |
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323 | } |
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324 | |||
325 | return retList; |
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326 | } |
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327 | |||
328 | /*********************************************************************** |
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329 | * |
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330 | * Database Binding functions |
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331 | * |
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332 | * These will be db specific due to typing, and minor differences |
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333 | * in databases. |
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334 | * |
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335 | **********************************************************************/ |
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336 | |||
337 | #region IPlugin interface |
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338 | |||
339 | /// <summary> |
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340 | /// |
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341 | /// </summary> |
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342 | override public string Version |
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343 | { |
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344 | get |
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345 | { |
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346 | Module module = GetType().Module; |
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347 | // string dllName = module.Assembly.ManifestModule.Name; |
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348 | Version dllVersion = module.Assembly.GetName().Version; |
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349 | |||
350 | return |
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351 | string.Format("{0}.{1}.{2}.{3}", dllVersion.Major, dllVersion.Minor, dllVersion.Build, |
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352 | dllVersion.Revision); |
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353 | } |
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354 | } |
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355 | |||
356 | /// <summary> |
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357 | /// Initialise the AssetData interface using default URI |
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358 | /// </summary> |
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359 | override public void Initialise() |
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360 | { |
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361 | Initialise("URI=file:Asset.db,version=3"); |
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362 | } |
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363 | |||
364 | /// <summary> |
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365 | /// Name of this DB provider |
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366 | /// </summary> |
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367 | override public string Name |
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368 | { |
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369 | get { return "SQLite Asset storage engine"; } |
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370 | } |
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371 | |||
372 | // TODO: (AlexRa): one of these is to be removed eventually (?) |
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373 | |||
374 | /// <summary> |
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375 | /// Delete an asset from database |
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376 | /// </summary> |
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377 | /// <param name="uuid"></param> |
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378 | public bool DeleteAsset(UUID uuid) |
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379 | { |
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380 | lock (this) |
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381 | { |
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382 | using (SqliteCommand cmd = new SqliteCommand(DeleteAssetSQL, m_conn)) |
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383 | { |
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384 | cmd.Parameters.Add(new SqliteParameter(":UUID", uuid.ToString())); |
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385 | cmd.ExecuteNonQuery(); |
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386 | } |
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387 | } |
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388 | |||
389 | return true; |
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390 | } |
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391 | |||
392 | public override bool Delete(string id) |
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393 | { |
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394 | UUID assetID; |
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395 | |||
396 | if (!UUID.TryParse(id, out assetID)) |
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397 | return false; |
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398 | |||
399 | return DeleteAsset(assetID); |
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400 | } |
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401 | |||
402 | #endregion |
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403 | } |
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404 | } |