opensim – Blame information for rev 1
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1 | eva | 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.Data.SqlClient; |
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31 | using System.Reflection; |
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32 | using System.Collections.Generic; |
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33 | using OpenMetaverse; |
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34 | using log4net; |
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35 | using OpenSim.Framework; |
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36 | |||
37 | namespace OpenSim.Data.MSSQL |
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38 | { |
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39 | /// <summary> |
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40 | /// A MSSQL Interface for the Asset server |
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41 | /// </summary> |
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42 | public class MSSQLAssetData : AssetDataBase |
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43 | { |
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44 | private const string _migrationStore = "AssetStore"; |
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45 | |||
46 | private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); |
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47 | private long m_ticksToEpoch; |
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48 | /// <summary> |
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49 | /// Database manager |
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50 | /// </summary> |
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51 | private MSSQLManager m_database; |
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52 | private string m_connectionString; |
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53 | |||
54 | #region IPlugin Members |
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55 | |||
56 | override public void Dispose() { } |
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57 | |||
58 | /// <summary> |
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59 | /// <para>Initialises asset interface</para> |
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60 | /// </summary> |
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61 | // [Obsolete("Cannot be default-initialized!")] |
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62 | override public void Initialise() |
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63 | { |
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64 | m_log.Info("[MSSQLAssetData]: " + Name + " cannot be default-initialized!"); |
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65 | throw new PluginNotInitialisedException(Name); |
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66 | } |
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67 | |||
68 | /// <summary> |
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69 | /// Initialises asset interface |
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70 | /// </summary> |
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71 | /// <para> |
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72 | /// a string instead of file, if someone writes the support |
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73 | /// </para> |
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74 | /// <param name="connectionString">connect string</param> |
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75 | override public void Initialise(string connectionString) |
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76 | { |
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77 | m_ticksToEpoch = new System.DateTime(1970, 1, 1).Ticks; |
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78 | |||
79 | m_database = new MSSQLManager(connectionString); |
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80 | m_connectionString = connectionString; |
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81 | |||
82 | //New migration to check for DB changes |
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83 | m_database.CheckMigration(_migrationStore); |
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84 | } |
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85 | |||
86 | /// <summary> |
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87 | /// Database provider version. |
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88 | /// </summary> |
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89 | override public string Version |
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90 | { |
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91 | get { return m_database.getVersion(); } |
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92 | } |
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93 | |||
94 | /// <summary> |
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95 | /// The name of this DB provider. |
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96 | /// </summary> |
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97 | override public string Name |
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98 | { |
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99 | get { return "MSSQL Asset storage engine"; } |
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100 | } |
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101 | |||
102 | #endregion |
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103 | |||
104 | #region IAssetDataPlugin Members |
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105 | |||
106 | /// <summary> |
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107 | /// Fetch Asset from m_database |
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108 | /// </summary> |
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109 | /// <param name="assetID">the asset UUID</param> |
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110 | /// <returns></returns> |
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111 | override public AssetBase GetAsset(UUID assetID) |
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112 | { |
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113 | string sql = "SELECT * FROM assets WHERE id = @id"; |
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114 | using (SqlConnection conn = new SqlConnection(m_connectionString)) |
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115 | using (SqlCommand cmd = new SqlCommand(sql, conn)) |
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116 | { |
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117 | cmd.Parameters.Add(m_database.CreateParameter("id", assetID)); |
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118 | conn.Open(); |
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119 | using (SqlDataReader reader = cmd.ExecuteReader()) |
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120 | { |
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121 | if (reader.Read()) |
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122 | { |
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123 | AssetBase asset = new AssetBase( |
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124 | DBGuid.FromDB(reader["id"]), |
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125 | (string)reader["name"], |
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126 | Convert.ToSByte(reader["assetType"]), |
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127 | reader["creatorid"].ToString() |
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128 | ); |
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129 | // Region Main |
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130 | asset.Description = (string)reader["description"]; |
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131 | asset.Local = Convert.ToBoolean(reader["local"]); |
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132 | asset.Temporary = Convert.ToBoolean(reader["temporary"]); |
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133 | asset.Flags = (AssetFlags)(Convert.ToInt32(reader["asset_flags"])); |
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134 | asset.Data = (byte[])reader["data"]; |
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135 | return asset; |
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136 | } |
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137 | return null; // throw new Exception("No rows to return"); |
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138 | } |
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139 | } |
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140 | } |
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141 | |||
142 | /// <summary> |
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143 | /// Create asset in m_database |
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144 | /// </summary> |
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145 | /// <param name="asset">the asset</param> |
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146 | override public void StoreAsset(AssetBase asset) |
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147 | { |
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148 | |||
149 | string sql = |
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150 | @"IF EXISTS(SELECT * FROM assets WHERE id=@id) |
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151 | UPDATE assets set name = @name, description = @description, assetType = @assetType, |
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152 | local = @local, temporary = @temporary, creatorid = @creatorid, data = @data |
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153 | WHERE id=@id |
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154 | ELSE |
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155 | INSERT INTO assets |
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156 | ([id], [name], [description], [assetType], [local], |
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157 | [temporary], [create_time], [access_time], [creatorid], [asset_flags], [data]) |
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158 | VALUES |
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159 | (@id, @name, @description, @assetType, @local, |
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160 | @temporary, @create_time, @access_time, @creatorid, @asset_flags, @data)"; |
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161 | |||
162 | string assetName = asset.Name; |
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163 | if (asset.Name.Length > 64) |
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164 | { |
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165 | assetName = asset.Name.Substring(0, 64); |
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166 | m_log.WarnFormat( |
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167 | "[ASSET DB]: Name '{0}' for asset {1} truncated from {2} to {3} characters on add", |
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168 | asset.Name, asset.ID, asset.Name.Length, assetName.Length); |
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169 | } |
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170 | |||
171 | string assetDescription = asset.Description; |
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172 | if (asset.Description.Length > 64) |
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173 | { |
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174 | assetDescription = asset.Description.Substring(0, 64); |
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175 | m_log.WarnFormat( |
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176 | "[ASSET DB]: Description '{0}' for asset {1} truncated from {2} to {3} characters on add", |
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177 | asset.Description, asset.ID, asset.Description.Length, assetDescription.Length); |
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178 | } |
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179 | |||
180 | using (SqlConnection conn = new SqlConnection(m_connectionString)) |
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181 | using (SqlCommand command = new SqlCommand(sql, conn)) |
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182 | { |
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183 | int now = (int)((System.DateTime.Now.Ticks - m_ticksToEpoch) / 10000000); |
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184 | command.Parameters.Add(m_database.CreateParameter("id", asset.FullID)); |
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185 | command.Parameters.Add(m_database.CreateParameter("name", assetName)); |
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186 | command.Parameters.Add(m_database.CreateParameter("description", assetDescription)); |
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187 | command.Parameters.Add(m_database.CreateParameter("assetType", asset.Type)); |
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188 | command.Parameters.Add(m_database.CreateParameter("local", asset.Local)); |
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189 | command.Parameters.Add(m_database.CreateParameter("temporary", asset.Temporary)); |
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190 | command.Parameters.Add(m_database.CreateParameter("access_time", now)); |
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191 | command.Parameters.Add(m_database.CreateParameter("create_time", now)); |
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192 | command.Parameters.Add(m_database.CreateParameter("asset_flags", (int)asset.Flags)); |
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193 | command.Parameters.Add(m_database.CreateParameter("creatorid", asset.Metadata.CreatorID)); |
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194 | command.Parameters.Add(m_database.CreateParameter("data", asset.Data)); |
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195 | conn.Open(); |
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196 | try |
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197 | { |
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198 | command.ExecuteNonQuery(); |
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199 | } |
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200 | catch(Exception e) |
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201 | { |
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202 | m_log.Error("[ASSET DB]: Error storing item :" + e.Message); |
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203 | } |
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204 | } |
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205 | } |
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206 | |||
207 | |||
208 | // Commented out since currently unused - this probably should be called in GetAsset() |
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209 | // private void UpdateAccessTime(AssetBase asset) |
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210 | // { |
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211 | // using (AutoClosingSqlCommand cmd = m_database.Query("UPDATE assets SET access_time = @access_time WHERE id=@id")) |
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212 | // { |
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213 | // int now = (int)((System.DateTime.Now.Ticks - m_ticksToEpoch) / 10000000); |
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214 | // cmd.Parameters.AddWithValue("@id", asset.FullID.ToString()); |
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215 | // cmd.Parameters.AddWithValue("@access_time", now); |
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216 | // try |
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217 | // { |
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218 | // cmd.ExecuteNonQuery(); |
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219 | // } |
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220 | // catch (Exception e) |
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221 | // { |
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222 | // m_log.Error(e.ToString()); |
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223 | // } |
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224 | // } |
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225 | // } |
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226 | |||
227 | /// <summary> |
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228 | /// Check if asset exist in m_database |
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229 | /// </summary> |
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230 | /// <param name="uuid"></param> |
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231 | /// <returns>true if exist.</returns> |
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232 | override public bool ExistsAsset(UUID uuid) |
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233 | { |
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234 | if (GetAsset(uuid) != null) |
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235 | { |
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236 | return true; |
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237 | } |
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238 | return false; |
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239 | } |
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240 | |||
241 | /// <summary> |
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242 | /// Returns a list of AssetMetadata objects. The list is a subset of |
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243 | /// the entire data set offset by <paramref name="start" /> containing |
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244 | /// <paramref name="count" /> elements. |
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245 | /// </summary> |
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246 | /// <param name="start">The number of results to discard from the total data set.</param> |
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247 | /// <param name="count">The number of rows the returned list should contain.</param> |
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248 | /// <returns>A list of AssetMetadata objects.</returns> |
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249 | public override List<AssetMetadata> FetchAssetMetadataSet(int start, int count) |
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250 | { |
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251 | List<AssetMetadata> retList = new List<AssetMetadata>(count); |
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252 | string sql = @"WITH OrderedAssets AS |
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253 | ( |
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254 | SELECT id, name, description, assetType, temporary, creatorid, |
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255 | RowNumber = ROW_NUMBER() OVER (ORDER BY id) |
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256 | FROM assets |
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257 | ) |
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258 | SELECT * |
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259 | FROM OrderedAssets |
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260 | WHERE RowNumber BETWEEN @start AND @stop;"; |
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261 | |||
262 | using (SqlConnection conn = new SqlConnection(m_connectionString)) |
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263 | using (SqlCommand cmd = new SqlCommand(sql, conn)) |
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264 | { |
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265 | cmd.Parameters.Add(m_database.CreateParameter("start", start)); |
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266 | cmd.Parameters.Add(m_database.CreateParameter("stop", start + count - 1)); |
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267 | conn.Open(); |
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268 | using (SqlDataReader reader = cmd.ExecuteReader()) |
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269 | { |
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270 | while (reader.Read()) |
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271 | { |
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272 | AssetMetadata metadata = new AssetMetadata(); |
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273 | metadata.FullID = DBGuid.FromDB(reader["id"]); |
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274 | metadata.Name = (string)reader["name"]; |
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275 | metadata.Description = (string)reader["description"]; |
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276 | metadata.Type = Convert.ToSByte(reader["assetType"]); |
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277 | metadata.Temporary = Convert.ToBoolean(reader["temporary"]); |
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278 | metadata.CreatorID = (string)reader["creatorid"]; |
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279 | retList.Add(metadata); |
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280 | } |
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281 | } |
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282 | } |
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283 | |||
284 | return retList; |
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285 | } |
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286 | |||
287 | public override bool Delete(string id) |
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288 | { |
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289 | return false; |
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290 | } |
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291 | #endregion |
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292 | } |
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293 | } |