aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/OpenSim/Data/PGSQL/PGSQLAssetData.cs
blob: 7c5c01d9bf40f1beae9e10e4c4a7d191a4de96e8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
/*
 * Copyright (c) Contributors, http://opensimulator.org/
 * See CONTRIBUTORS.TXT for a full list of copyright holders.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the OpenSimulator Project nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

using System;
using System.Data;
using System.Reflection;
using System.Collections.Generic;
using OpenMetaverse;
using log4net;
using OpenSim.Framework;
using Npgsql;
using NpgsqlTypes;

namespace OpenSim.Data.PGSQL
{
    /// <summary>
    /// A PGSQL Interface for the Asset server
    /// </summary>
    public class PGSQLAssetData : AssetDataBase
    {
        private const string _migrationStore = "AssetStore";

        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
        private long m_ticksToEpoch;
        /// <summary>
        /// Database manager
        /// </summary>
        private PGSQLManager m_database;
        private string m_connectionString;

        protected virtual Assembly Assembly
        {
            get { return GetType().Assembly; }
        }

        #region IPlugin Members

        override public void Dispose() { }

        /// <summary>
        /// <para>Initialises asset interface</para>
        /// </summary>
        // [Obsolete("Cannot be default-initialized!")]
        override public void Initialise()
        {
            m_log.Info("[PGSQLAssetData]: " + Name + " cannot be default-initialized!");
            throw new PluginNotInitialisedException(Name);
        }

        /// <summary>
        /// Initialises asset interface
        /// </summary>
        /// <para>
        /// a string instead of file, if someone writes the support
        /// </para>
        /// <param name="connectionString">connect string</param>
        override public void Initialise(string connectionString)
        {
            m_ticksToEpoch = new System.DateTime(1970, 1, 1).Ticks;

            m_database = new PGSQLManager(connectionString);
            m_connectionString = connectionString;

            //New migration to check for DB changes
            m_database.CheckMigration(_migrationStore);
        }

        /// <summary>
        /// Database provider version.
        /// </summary>
        override public string Version
        {
            get { return m_database.getVersion(); }
        }

        /// <summary>
        /// The name of this DB provider.
        /// </summary>
        override public string Name
        {
            get { return "PGSQL Asset storage engine"; }
        }

        #endregion

        #region IAssetDataPlugin Members

        /// <summary>
        /// Fetch Asset from m_database
        /// </summary>
        /// <param name="assetID">the asset UUID</param>
        /// <returns></returns>
        override public AssetBase GetAsset(UUID assetID)
        {
            string sql = "SELECT * FROM assets WHERE id = :id";
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                cmd.Parameters.Add(m_database.CreateParameter("id", assetID));
                conn.Open();
                using (NpgsqlDataReader reader = cmd.ExecuteReader())
                {
                    if (reader.Read())
                    {
                        AssetBase asset = new AssetBase(
                            DBGuid.FromDB(reader["id"]),
                            (string)reader["name"],
                            Convert.ToSByte(reader["assetType"]),
                            reader["creatorid"].ToString()
                        );
                        // Region Main
                        asset.Description = (string)reader["description"];
                        asset.Local = Convert.ToBoolean(reader["local"]);
                        asset.Temporary = Convert.ToBoolean(reader["temporary"]);
                        asset.Flags = (AssetFlags)(Convert.ToInt32(reader["asset_flags"]));
                        asset.Data = (byte[])reader["data"];
                        return asset;
                    }
                    return null; // throw new Exception("No rows to return");
                }
            }
        }

        /// <summary>
        /// Create asset in m_database
        /// </summary>
        /// <param name="asset">the asset</param>
        override public bool StoreAsset(AssetBase asset)
        {
           
            string sql =
                @"UPDATE assets set name = :name, description = :description, " + "\"assetType\" " + @" = :assetType,
                         local = :local, temporary = :temporary, creatorid = :creatorid, data = :data
                    WHERE id=:id;

                  INSERT INTO assets
                    (id, name, description, " + "\"assetType\" " + @", local, 
                     temporary, create_time, access_time, creatorid, asset_flags, data)
                  Select :id, :name, :description, :assetType, :local, 
                         :temporary, :create_time, :access_time, :creatorid, :asset_flags, :data
                   Where not EXISTS(SELECT * FROM assets WHERE id=:id) 
                ";
            
            string assetName = asset.Name;
            if (asset.Name.Length > 64)
            {
                assetName = asset.Name.Substring(0, 64);
                m_log.WarnFormat(
                    "[ASSET DB]: Name '{0}' for asset {1} truncated from {2} to {3} characters on add", 
                    asset.Name, asset.ID, asset.Name.Length, assetName.Length);
            }
            
            string assetDescription = asset.Description;
            if (asset.Description.Length > 64)
            {
                assetDescription = asset.Description.Substring(0, 64);
                m_log.WarnFormat(
                    "[ASSET DB]: Description '{0}' for asset {1} truncated from {2} to {3} characters on add", 
                    asset.Description, asset.ID, asset.Description.Length, assetDescription.Length);
            }

            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand command = new NpgsqlCommand(sql, conn))
            {
                int now = (int)((System.DateTime.Now.Ticks - m_ticksToEpoch) / 10000000);
                command.Parameters.Add(m_database.CreateParameter("id", asset.FullID));
                command.Parameters.Add(m_database.CreateParameter("name", assetName));
                command.Parameters.Add(m_database.CreateParameter("description", assetDescription));
                command.Parameters.Add(m_database.CreateParameter("assetType", asset.Type));
                command.Parameters.Add(m_database.CreateParameter("local", asset.Local));
                command.Parameters.Add(m_database.CreateParameter("temporary", asset.Temporary));
                command.Parameters.Add(m_database.CreateParameter("access_time", now));
                command.Parameters.Add(m_database.CreateParameter("create_time", now));
                command.Parameters.Add(m_database.CreateParameter("asset_flags", (int)asset.Flags));
                command.Parameters.Add(m_database.CreateParameter("creatorid", asset.Metadata.CreatorID));
                command.Parameters.Add(m_database.CreateParameter("data", asset.Data));
                conn.Open();
                try
                {
                    command.ExecuteNonQuery();
                }
                catch(Exception e)
                {
                    m_log.Error("[ASSET DB]: Error storing item :" + e.Message + " sql "+sql);
                }
            }
            return true;
        }


// Commented out since currently unused - this probably should be called in GetAsset()
//        private void UpdateAccessTime(AssetBase asset)
//        {
//            using (AutoClosingSqlCommand cmd = m_database.Query("UPDATE assets SET access_time = :access_time WHERE id=:id"))
//            {
//                int now = (int)((System.DateTime.Now.Ticks - m_ticksToEpoch) / 10000000);
//                cmd.Parameters.AddWithValue(":id", asset.FullID.ToString());
//                cmd.Parameters.AddWithValue(":access_time", now);
//                try
//                {
//                    cmd.ExecuteNonQuery();
//                }
//                catch (Exception e)
//                {
//                    m_log.Error(e.ToString());
//                }
//            }
//        }

        /// <summary>
        /// Check if asset exist in m_database
        /// </summary>
        /// <param name="uuid"></param>
        /// <returns>true if exist.</returns>
        override public bool ExistsAsset(UUID uuid)
        {
            if (GetAsset(uuid) != null)
            {
                return true;
            }
            return false;
        }

        /// <summary>
        /// Returns a list of AssetMetadata objects. The list is a subset of
        /// the entire data set offset by <paramref name="start" /> containing
        /// <paramref name="count" /> elements.
        /// </summary>
        /// <param name="start">The number of results to discard from the total data set.</param>
        /// <param name="count">The number of rows the returned list should contain.</param>
        /// <returns>A list of AssetMetadata objects.</returns>
        public override List<AssetMetadata> FetchAssetMetadataSet(int start, int count)
        {
            List<AssetMetadata> retList = new List<AssetMetadata>(count);
            string sql = @" SELECT id, name, description, " + "\"assetType\"" + @", temporary, creatorid
                              FROM assets 
                             order by id
                             limit :stop
                            offset :start;";

            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                cmd.Parameters.Add(m_database.CreateParameter("start", start));
                cmd.Parameters.Add(m_database.CreateParameter("stop", start + count - 1));
                conn.Open();
                using (NpgsqlDataReader reader = cmd.ExecuteReader())
                {
                    while (reader.Read())
                    {
                        AssetMetadata metadata = new AssetMetadata();
                        metadata.FullID = DBGuid.FromDB(reader["id"]);
                        metadata.Name = (string)reader["name"];
                        metadata.Description = (string)reader["description"];
                        metadata.Type = Convert.ToSByte(reader["assetType"]);
                        metadata.Temporary = Convert.ToBoolean(reader["temporary"]);
                        metadata.CreatorID = (string)reader["creatorid"];
                        retList.Add(metadata);
                    }
                }
            }

            return retList;
        }

        public override bool Delete(string id)
        {
            return false;
        }
        #endregion
    }
}