aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/OpenSim/Data/SQLite/SQLiteAssetData.cs
blob: dde05bd55d440289e4ab6e59bcc6f38225c76c9f (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
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
/*
 * 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 OpenSim 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 libsecondlife;
using log4net;
using Mono.Data.SqliteClient;
using OpenSim.Framework;

namespace OpenSim.Data.SQLite
{
    /// <summary>
    /// A User storage interface for the DB4o database system
    /// </summary>
    public class SQLiteAssetData : AssetDataBase
    {
        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

        /// <summary>
        /// The database manager
        /// </summary>
        /// <summary>
        /// Artificial constructor called upon plugin load
        /// </summary>
        private const string SelectAssetSQL = "select * from assets where UUID=:UUID";
        private const string DeleteAssetSQL = "delete from assets where UUID=:UUID";
        private const string InsertAssetSQL = "insert into assets(UUID, Name, Description, Type, Local, Temporary, Data) values(:UUID, :Name, :Description, :Type, :Local, :Temporary, :Data)";
        private const string UpdateAssetSQL = "update assets set Name=:Name, Description=:Description, Type=:Type, Local=:Local, Temporary=:Temporary, Data=:Data where UUID=:UUID";
        private const string assetSelect = "select * from assets";

        private SqliteConnection m_conn;

        override public void Dispose() { }

        /// <summary>
        /// <list type="bullet">
        /// <item>Initialises AssetData interface</item>
        /// <item>Loads and initialises a new SQLite connection and maintains it.</item>
        /// <item>use default URI if connect string is empty.</item>
        /// </list>
        /// </summary>
        /// <param name="dbconnect">connect string</param>
        override public void Initialise(string dbconnect)
        {
            if (dbconnect == string.Empty)
            {
                dbconnect = "URI=file:AssetStorage.db,version=3";
            }
            m_conn = new SqliteConnection(dbconnect);
            m_conn.Open();

            Assembly assem = GetType().Assembly;
            Migration m = new Migration(m_conn, assem, "AssetStore");
            // TODO: remove this next line after changeset 6000,
            // people should have all gotten into the migration swing
            // again.
            TestTables(m_conn, m);

            m.Update();

            return;
        }

        /// <summary>
        /// Fetch Asset
        /// </summary>
        /// <param name="uuid">UUID of ... ?</param>
        /// <returns>Asset base</returns>
        override public AssetBase FetchAsset(LLUUID uuid)
        {

            using (SqliteCommand cmd = new SqliteCommand(SelectAssetSQL, m_conn))
            {
                cmd.Parameters.Add(new SqliteParameter(":UUID", Util.ToRawUuidString(uuid)));
                using (IDataReader reader = cmd.ExecuteReader())
                {
                    if (reader.Read())
                    {
                        AssetBase asset = buildAsset(reader);
                        reader.Close();
                        return asset;
                    }
                    else
                    {
                        reader.Close();
                        return null;
                    }
                }
            }
        }

        /// <summary>
        /// Create an asset
        /// </summary>
        /// <param name="asset">Asset Base</param>
        override public void CreateAsset(AssetBase asset)
        {
            m_log.Info("[ASSET DB]: Creating Asset " + Util.ToRawUuidString(asset.FullID));
            if (ExistsAsset(asset.FullID))
            {
                m_log.Info("[ASSET DB]: Asset exists already, ignoring.");
            }
            else
            {
                using (SqliteCommand cmd = new SqliteCommand(InsertAssetSQL, m_conn))
                {
                    cmd.Parameters.Add(new SqliteParameter(":UUID", Util.ToRawUuidString(asset.FullID)));
                    cmd.Parameters.Add(new SqliteParameter(":Name", asset.Name));
                    cmd.Parameters.Add(new SqliteParameter(":Description", asset.Description));
                    cmd.Parameters.Add(new SqliteParameter(":Type", asset.Type));
                    cmd.Parameters.Add(new SqliteParameter(":Local", asset.Local));
                    cmd.Parameters.Add(new SqliteParameter(":Temporary", asset.Temporary));
                    cmd.Parameters.Add(new SqliteParameter(":Data", asset.Data));

                    cmd.ExecuteNonQuery();
                }
            }
        }

        /// <summary>
        /// Update an asset
        /// </summary>
        /// <param name="asset"></param>
        override public void UpdateAsset(AssetBase asset)
        {
            LogAssetLoad(asset);

            using (SqliteCommand cmd = new SqliteCommand(UpdateAssetSQL, m_conn))
            {
                cmd.Parameters.Add(new SqliteParameter(":UUID", Util.ToRawUuidString(asset.FullID)));
                cmd.Parameters.Add(new SqliteParameter(":Name", asset.Name));
                cmd.Parameters.Add(new SqliteParameter(":Description", asset.Description));
                cmd.Parameters.Add(new SqliteParameter(":Type", asset.Type));
                cmd.Parameters.Add(new SqliteParameter(":Local", asset.Local));
                cmd.Parameters.Add(new SqliteParameter(":Temporary", asset.Temporary));
                cmd.Parameters.Add(new SqliteParameter(":Data", asset.Data));

                cmd.ExecuteNonQuery();
            }

        }

        /// <summary>
        /// Some... logging functionnality
        /// </summary>
        /// <param name="asset"></param>
        private static void LogAssetLoad(AssetBase asset)
        {
            string temporary = asset.Temporary ? "Temporary" : "Stored";
            string local = asset.Local ? "Local" : "Remote";

            int assetLength = (asset.Data != null) ? asset.Data.Length : 0;

            m_log.Info("[ASSET DB]: " +
                                     string.Format("Loaded {6} {5} Asset: [{0}][{3}] \"{1}\":{2} ({7} bytes)",
                                                   asset.FullID, asset.Name, asset.Description, asset.Type,
                                                   temporary, local, assetLength));
        }

        /// <summary>
        /// Check if an asset exist in database
        /// </summary>
        /// <param name="uuid">The asset UUID</param>
        /// <returns>True if exist, or false.</returns>
        override public bool ExistsAsset(LLUUID uuid)
        {
            using (SqliteCommand cmd = new SqliteCommand(SelectAssetSQL, m_conn))
            {
                cmd.Parameters.Add(new SqliteParameter(":UUID", Util.ToRawUuidString(uuid)));
                using (IDataReader reader = cmd.ExecuteReader())
                {
                    if (reader.Read())
                    {
                        reader.Close();
                        return true;
                    }
                    else
                    {
                        reader.Close();
                        return false;
                    }
                }
            }
        }

        /// <summary>
        /// Delete an asset from database
        /// </summary>
        /// <param name="uuid"></param>
        public void DeleteAsset(LLUUID uuid)
        {
            using (SqliteCommand cmd = new SqliteCommand(DeleteAssetSQL, m_conn))
            {
                cmd.Parameters.Add(new SqliteParameter(":UUID", Util.ToRawUuidString(uuid)));

                cmd.ExecuteNonQuery();
            }
        }

        /***********************************************************************
         *
         *  Database Definition Functions
         *
         *  This should be db agnostic as we define them in ADO.NET terms
         *
         **********************************************************************/

        /// <summary>
        /// Create the "assets" table
        /// </summary>
        /// <returns></returns>
        // private static DataTable createAssetsTable()
        // {
        //     DataTable assets = new DataTable("assets");

        //     SQLiteUtil.createCol(assets, "UUID", typeof (String));
        //     SQLiteUtil.createCol(assets, "Name", typeof (String));
        //     SQLiteUtil.createCol(assets, "Description", typeof (String));
        //     SQLiteUtil.createCol(assets, "Type", typeof (Int32));
        //     SQLiteUtil.createCol(assets, "Local", typeof (Boolean));
        //     SQLiteUtil.createCol(assets, "Temporary", typeof (Boolean));
        //     SQLiteUtil.createCol(assets, "Data", typeof (Byte[]));
        //     // Add in contraints
        //     assets.PrimaryKey = new DataColumn[] {assets.Columns["UUID"]};
        //     return assets;
        // }

        /***********************************************************************
         *
         *  Convert between ADO.NET <=> OpenSim Objects
         *
         *  These should be database independant
         *
         **********************************************************************/

        /// <summary>
        /// 
        /// </summary>
        /// <param name="row"></param>
        /// <returns></returns>
        private static AssetBase buildAsset(IDataReader row)
        {
            // TODO: this doesn't work yet because something more
            // interesting has to be done to actually get these values
            // back out.  Not enough time to figure it out yet.
            AssetBase asset = new AssetBase();

            asset.FullID = new LLUUID((String) row["UUID"]);
            asset.Name = (String) row["Name"];
            asset.Description = (String) row["Description"];
            asset.Type = Convert.ToSByte(row["Type"]);
            asset.Local = Convert.ToBoolean(row["Local"]);
            asset.Temporary = Convert.ToBoolean(row["Temporary"]);
            asset.Data = (byte[]) row["Data"];
            return asset;
        }


        /***********************************************************************
         *
         *  Database Binding functions
         *
         *  These will be db specific due to typing, and minor differences
         *  in databases.
         *
         **********************************************************************/

        /// <summary>
        /// 
        /// </summary>
        /// <param name="conn"></param>
        // private static void InitDB(SqliteConnection conn)
        // {
        //     string createAssets = SQLiteUtil.defineTable(createAssetsTable());
        //     SqliteCommand pcmd = new SqliteCommand(createAssets, conn);
        //     pcmd.ExecuteNonQuery();
        // }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="conn"></param>
        /// <param name="m"></param>
        /// <returns></returns>
        private static bool TestTables(SqliteConnection conn, Migration m)
        {
            SqliteCommand cmd = new SqliteCommand(assetSelect, conn);
            SqliteDataAdapter pDa = new SqliteDataAdapter(cmd);
            DataSet tmpDS = new DataSet();
            try
            {
                pDa.Fill(tmpDS, "assets");
            }
            catch (SqliteSyntaxException)
            {
                m_log.Info("[ASSET DB]: SQLite Database doesn't exist... creating");
                return false;
            }
            
            // if the tables are here, and we don't have a migration,
            // set it to 1, as we're migrating off of legacy bits
            if (m.Version == 0) 
                m.Version = 1;

            return true;
        }

        #region IPlugin interface

        /// <summary>
        /// 
        /// </summary>
        override public string Version
        {
            get
            {
                Module module = GetType().Module;
                // string dllName = module.Assembly.ManifestModule.Name;
                Version dllVersion = module.Assembly.GetName().Version;

                return
                    string.Format("{0}.{1}.{2}.{3}", dllVersion.Major, dllVersion.Minor, dllVersion.Build,
                                  dllVersion.Revision);
            }
        }

        /// <summary>
        /// Initialise the AssetData interface using default URI
        /// </summary>
        override public void Initialise()
        {
            Initialise("URI=file:AssetStorage.db,version=3");
        }

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

        #endregion
    }
}