From 959cd6022504fa3ffe2f69c66ed94827f6ae6951 Mon Sep 17 00:00:00 2001 From: Justin Clark-Casey (justincc) Date: Fri, 23 Apr 2010 17:17:15 +0100 Subject: Duplicate OpenSim.Data.SQLite into OpenSim.Data.SQLiteNG. SQLiteNG will shortly be changed to work under mono 2.6 and above --- OpenSim/Data/SQLiteNG/SQLiteAssetData.cs | 343 +++++++++++++++++++++++++++++++ 1 file changed, 343 insertions(+) create mode 100644 OpenSim/Data/SQLiteNG/SQLiteAssetData.cs (limited to 'OpenSim/Data/SQLiteNG/SQLiteAssetData.cs') diff --git a/OpenSim/Data/SQLiteNG/SQLiteAssetData.cs b/OpenSim/Data/SQLiteNG/SQLiteAssetData.cs new file mode 100644 index 0000000..a032670 --- /dev/null +++ b/OpenSim/Data/SQLiteNG/SQLiteAssetData.cs @@ -0,0 +1,343 @@ +/* + * 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 log4net; +using Mono.Data.SqliteClient; +using OpenMetaverse; +using OpenSim.Framework; + +namespace OpenSim.Data.SQLite +{ + /// + /// An asset storage interface for the SQLite database system + /// + public class SQLiteAssetData : AssetDataBase + { +// private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); + + private const string SelectAssetSQL = "select * from assets where UUID=:UUID"; + private const string SelectAssetMetadataSQL = "select Name, Description, Type, Temporary, UUID from assets limit :start, :count"; + 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() + { + if (m_conn != null) + { + m_conn.Close(); + m_conn = null; + } + } + + /// + /// + /// Initialises AssetData interface + /// Loads and initialises a new SQLite connection and maintains it. + /// use default URI if connect string is empty. + /// + /// + /// connect string + override public void Initialise(string dbconnect) + { + if (dbconnect == string.Empty) + { + dbconnect = "URI=file:Asset.db,version=3"; + } + m_conn = new SqliteConnection(dbconnect); + m_conn.Open(); + + Assembly assem = GetType().Assembly; + Migration m = new Migration(m_conn, assem, "AssetStore"); + m.Update(); + + return; + } + + /// + /// Fetch Asset + /// + /// UUID of ... ? + /// Asset base + override public AssetBase GetAsset(UUID uuid) + { + lock (this) + { + using (SqliteCommand cmd = new SqliteCommand(SelectAssetSQL, m_conn)) + { + cmd.Parameters.Add(new SqliteParameter(":UUID", uuid.ToString())); + using (IDataReader reader = cmd.ExecuteReader()) + { + if (reader.Read()) + { + AssetBase asset = buildAsset(reader); + reader.Close(); + return asset; + } + else + { + reader.Close(); + return null; + } + } + } + } + } + + /// + /// Create an asset + /// + /// Asset Base + override public void StoreAsset(AssetBase asset) + { + //m_log.Info("[ASSET DB]: Creating Asset " + asset.FullID.ToString()); + if (ExistsAsset(asset.FullID)) + { + //LogAssetLoad(asset); + + lock (this) + { + using (SqliteCommand cmd = new SqliteCommand(UpdateAssetSQL, m_conn)) + { + cmd.Parameters.Add(new SqliteParameter(":UUID", asset.FullID.ToString())); + 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(); + } + } + } + else + { + lock (this) + { + using (SqliteCommand cmd = new SqliteCommand(InsertAssetSQL, m_conn)) + { + cmd.Parameters.Add(new SqliteParameter(":UUID", asset.FullID.ToString())); + 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(); + } + } + } + } + +// /// +// /// Some... logging functionnality +// /// +// /// +// 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.Debug("[ASSET DB]: " + +// string.Format("Loaded {5} {4} Asset: [{0}][{3}] \"{1}\":{2} ({6} bytes)", +// asset.FullID, asset.Name, asset.Description, asset.Type, +// temporary, local, assetLength)); +// } + + /// + /// Check if an asset exist in database + /// + /// The asset UUID + /// True if exist, or false. + override public bool ExistsAsset(UUID uuid) + { + lock (this) { + using (SqliteCommand cmd = new SqliteCommand(SelectAssetSQL, m_conn)) + { + cmd.Parameters.Add(new SqliteParameter(":UUID", uuid.ToString())); + using (IDataReader reader = cmd.ExecuteReader()) + { + if (reader.Read()) + { + reader.Close(); + return true; + } + else + { + reader.Close(); + return false; + } + } + } + } + } + + /// + /// Delete an asset from database + /// + /// + public void DeleteAsset(UUID uuid) + { + using (SqliteCommand cmd = new SqliteCommand(DeleteAssetSQL, m_conn)) + { + cmd.Parameters.Add(new SqliteParameter(":UUID", uuid.ToString())); + + cmd.ExecuteNonQuery(); + } + } + + /// + /// + /// + /// + /// + 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( + new UUID((String)row["UUID"]), + (String)row["Name"], + Convert.ToSByte(row["Type"]), + UUID.Zero.ToString() + ); + + asset.Description = (String) row["Description"]; + asset.Local = Convert.ToBoolean(row["Local"]); + asset.Temporary = Convert.ToBoolean(row["Temporary"]); + asset.Data = (byte[]) row["Data"]; + return asset; + } + + private static AssetMetadata buildAssetMetadata(IDataReader row) + { + AssetMetadata metadata = new AssetMetadata(); + + metadata.FullID = new UUID((string) row["UUID"]); + metadata.Name = (string) row["Name"]; + metadata.Description = (string) row["Description"]; + metadata.Type = Convert.ToSByte(row["Type"]); + metadata.Temporary = Convert.ToBoolean(row["Temporary"]); // Not sure if this is correct. + + // Current SHA1s are not stored/computed. + metadata.SHA1 = new byte[] {}; + + return metadata; + } + + /// + /// Returns a list of AssetMetadata objects. The list is a subset of + /// the entire data set offset by containing + /// elements. + /// + /// The number of results to discard from the total data set. + /// The number of rows the returned list should contain. + /// A list of AssetMetadata objects. + public override List FetchAssetMetadataSet(int start, int count) + { + List retList = new List(count); + + lock (this) + { + using (SqliteCommand cmd = new SqliteCommand(SelectAssetMetadataSQL, m_conn)) + { + cmd.Parameters.Add(new SqliteParameter(":start", start)); + cmd.Parameters.Add(new SqliteParameter(":count", count)); + + using (IDataReader reader = cmd.ExecuteReader()) + { + while (reader.Read()) + { + AssetMetadata metadata = buildAssetMetadata(reader); + retList.Add(metadata); + } + } + } + } + + return retList; + } + + /*********************************************************************** + * + * Database Binding functions + * + * These will be db specific due to typing, and minor differences + * in databases. + * + **********************************************************************/ + + #region IPlugin interface + + /// + /// + /// + 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); + } + } + + /// + /// Initialise the AssetData interface using default URI + /// + override public void Initialise() + { + Initialise("URI=file:Asset.db,version=3"); + } + + /// + /// Name of this DB provider + /// + override public string Name + { + get { return "SQLite Asset storage engine"; } + } + + #endregion + } +} \ No newline at end of file -- cgit v1.1