300 lines
12 KiB
C#
300 lines
12 KiB
C#
/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSim Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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using System;
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using System.Data;
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using System.Reflection;
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using libsecondlife;
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using Mono.Data.SqliteClient;
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using OpenSim.Framework.Console;
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namespace OpenSim.Framework.Data.SQLite
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{
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/// <summary>
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/// A User storage interface for the DB4o database system
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/// </summary>
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public class SQLiteAssetData : SQLiteBase, IAssetProvider
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{
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private static readonly log4net.ILog m_log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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/// <summary>
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/// The database manager
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/// </summary>
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/// <summary>
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/// Artificial constructor called upon plugin load
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/// </summary>
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private const string SelectAssetSQL = "select * from assets where UUID=:UUID";
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private const string DeleteAssetSQL = "delete from assets where UUID=:UUID";
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private const string InsertAssetSQL = "insert into assets(UUID, Name, Description, Type, InvType, Local, Temporary, Data) values(:UUID, :Name, :Description, :Type, :InvType, :Local, :Temporary, :Data)";
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private const string UpdateAssetSQL = "update assets set Name=:Name, Description=:Description, Type=:Type, InvType=:InvType, Local=:Local, Temporary=:Temporary, Data=:Data where UUID=:UUID";
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private const string assetSelect = "select * from assets";
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private SqliteConnection m_conn;
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public void Initialise(string dbfile, string dbname)
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{
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m_conn = new SqliteConnection("URI=file:" + dbfile + ",version=3");
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m_conn.Open();
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TestTables(m_conn);
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return;
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}
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public AssetBase FetchAsset(LLUUID uuid)
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{
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using (SqliteCommand cmd = new SqliteCommand(SelectAssetSQL, m_conn))
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{
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cmd.Parameters.Add(new SqliteParameter(":UUID", Util.ToRawUuidString(uuid)));
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using (IDataReader reader = cmd.ExecuteReader())
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{
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if (reader.Read())
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{
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AssetBase asset = buildAsset(reader);
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reader.Close();
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return asset;
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}
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else
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{
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reader.Close();
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return null;
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}
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}
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}
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}
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public void CreateAsset(AssetBase asset)
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{
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m_log.Info("[SQLITE]: Creating Asset " + Util.ToRawUuidString(asset.FullID));
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if (ExistsAsset(asset.FullID))
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{
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m_log.Info("[SQLITE]: Asset exists, updating instead. You should fix the caller for this!");
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UpdateAsset(asset);
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}
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else
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{
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using (SqliteCommand cmd = new SqliteCommand(InsertAssetSQL, m_conn))
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{
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cmd.Parameters.Add(new SqliteParameter(":UUID", Util.ToRawUuidString(asset.FullID)));
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cmd.Parameters.Add(new SqliteParameter(":Name", asset.Name));
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cmd.Parameters.Add(new SqliteParameter(":Description", asset.Description));
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cmd.Parameters.Add(new SqliteParameter(":Type", asset.Type));
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cmd.Parameters.Add(new SqliteParameter(":InvType", asset.InvType));
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cmd.Parameters.Add(new SqliteParameter(":Local", asset.Local));
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cmd.Parameters.Add(new SqliteParameter(":Temporary", asset.Temporary));
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cmd.Parameters.Add(new SqliteParameter(":Data", asset.Data));
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cmd.ExecuteNonQuery();
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}
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}
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}
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public void UpdateAsset(AssetBase asset)
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{
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LogAssetLoad(asset);
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using (SqliteCommand cmd = new SqliteCommand(UpdateAssetSQL, m_conn))
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{
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cmd.Parameters.Add(new SqliteParameter(":UUID", Util.ToRawUuidString(asset.FullID)));
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cmd.Parameters.Add(new SqliteParameter(":Name", asset.Name));
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cmd.Parameters.Add(new SqliteParameter(":Description", asset.Description));
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cmd.Parameters.Add(new SqliteParameter(":Type", asset.Type));
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cmd.Parameters.Add(new SqliteParameter(":InvType", asset.InvType));
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cmd.Parameters.Add(new SqliteParameter(":Local", asset.Local));
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cmd.Parameters.Add(new SqliteParameter(":Temporary", asset.Temporary));
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cmd.Parameters.Add(new SqliteParameter(":Data", asset.Data));
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cmd.ExecuteNonQuery();
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}
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}
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private void LogAssetLoad(AssetBase asset)
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{
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string temporary = asset.Temporary ? "Temporary" : "Stored";
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string local = asset.Local ? "Local" : "Remote";
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m_log.Info("[SQLITE]: " +
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string.Format("Loaded {6} {5} Asset: [{0}][{3}/{4}] \"{1}\":{2} ({7} bytes)",
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asset.FullID, asset.Name, asset.Description, asset.Type,
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asset.InvType, temporary, local, asset.Data.Length));
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}
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public bool ExistsAsset(LLUUID uuid)
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{
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using (SqliteCommand cmd = new SqliteCommand(SelectAssetSQL, m_conn))
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{
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cmd.Parameters.Add(new SqliteParameter(":UUID", Util.ToRawUuidString(uuid)));
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using (IDataReader reader = cmd.ExecuteReader())
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{
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if(reader.Read())
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{
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reader.Close();
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return true;
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}
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else
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{
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reader.Close();
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return false;
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}
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}
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}
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}
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public void DeleteAsset(LLUUID uuid)
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{
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using (SqliteCommand cmd = new SqliteCommand(DeleteAssetSQL, m_conn))
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{
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cmd.Parameters.Add(new SqliteParameter(":UUID", Util.ToRawUuidString(uuid)));
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cmd.ExecuteNonQuery();
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}
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}
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public void CommitAssets() // force a sync to the database
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{
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m_log.Info("[SQLITE]: Attempting commit");
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// lock (ds)
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// {
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// da.Update(ds, "assets");
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// ds.AcceptChanges();
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// }
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}
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/***********************************************************************
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*
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* Database Definition Functions
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*
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* This should be db agnostic as we define them in ADO.NET terms
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*
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**********************************************************************/
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private DataTable createAssetsTable()
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{
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DataTable assets = new DataTable("assets");
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createCol(assets, "UUID", typeof (String));
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createCol(assets, "Name", typeof (String));
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createCol(assets, "Description", typeof (String));
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createCol(assets, "Type", typeof (Int32));
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createCol(assets, "InvType", typeof (Int32));
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createCol(assets, "Local", typeof (Boolean));
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createCol(assets, "Temporary", typeof (Boolean));
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createCol(assets, "Data", typeof (Byte[]));
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// Add in contraints
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assets.PrimaryKey = new DataColumn[] {assets.Columns["UUID"]};
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return assets;
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}
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/***********************************************************************
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*
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* Convert between ADO.NET <=> OpenSim Objects
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*
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* These should be database independant
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*
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**********************************************************************/
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private AssetBase buildAsset(IDataReader row)
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{
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// TODO: this doesn't work yet because something more
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// interesting has to be done to actually get these values
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// back out. Not enough time to figure it out yet.
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AssetBase asset = new AssetBase();
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asset.FullID = new LLUUID((String) row["UUID"]);
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asset.Name = (String) row["Name"];
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asset.Description = (String) row["Description"];
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asset.Type = Convert.ToSByte(row["Type"]);
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asset.InvType = Convert.ToSByte(row["InvType"]);
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asset.Local = Convert.ToBoolean(row["Local"]);
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asset.Temporary = Convert.ToBoolean(row["Temporary"]);
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asset.Data = (byte[]) row["Data"];
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return asset;
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}
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/***********************************************************************
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*
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* Database Binding functions
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*
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* These will be db specific due to typing, and minor differences
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* in databases.
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*
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**********************************************************************/
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private void InitDB(SqliteConnection conn)
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{
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string createAssets = defineTable(createAssetsTable());
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SqliteCommand pcmd = new SqliteCommand(createAssets, conn);
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pcmd.ExecuteNonQuery();
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}
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private bool TestTables(SqliteConnection conn)
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{
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SqliteCommand cmd = new SqliteCommand(assetSelect, conn);
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SqliteDataAdapter pDa = new SqliteDataAdapter(cmd);
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DataSet tmpDS = new DataSet();
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try
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{
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pDa.Fill(tmpDS, "assets");
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}
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catch (SqliteSyntaxException)
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{
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m_log.Info("[SQLITE]: SQLite Database doesn't exist... creating");
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InitDB(conn);
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}
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return true;
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}
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#region IPlugin interface
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public string Version
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{
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get
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{
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Module module = GetType().Module;
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string dllName = module.Assembly.ManifestModule.Name;
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Version dllVersion = module.Assembly.GetName().Version;
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return
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string.Format("{0}.{1}.{2}.{3}", dllVersion.Major, dllVersion.Minor, dllVersion.Build,
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dllVersion.Revision);
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}
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}
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public void Initialise()
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{
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Initialise("AssetStorage.db", "");
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}
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public string Name
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{
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get { return "SQLite Asset storage engine"; }
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}
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#endregion
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}
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} |