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/*
* 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.Collections.Generic;
using System.Data;
using System.Reflection;
using libsecondlife;
using log4net;
using MySql.Data.MySqlClient;
using OpenSim.Framework;
namespace OpenSim.Data.MySQL
{
internal class MySQLAssetData : AssetDataBase, IPlugin
{
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private MySQLManager _dbConnection;
#region IAssetProvider Members
private void UpgradeAssetsTable(string oldVersion)
{
// null as the version, indicates that the table didn't exist
if (oldVersion == null)
{
m_log.Info("[ASSETS]: Creating new database tables");
_dbConnection.ExecuteResourceSql("CreateAssetsTable.sql");
return;
}
}
/// <summary>
/// Ensure that the assets related tables exists and are at the latest version
/// </summary>
private void TestTables()
{
Dictionary<string, string> tableList = new Dictionary<string, string>();
tableList["assets"] = null;
_dbConnection.GetTableVersion(tableList);
UpgradeAssetsTable(tableList["assets"]);
}
override public AssetBase FetchAsset(LLUUID assetID)
{
AssetBase asset = null;
lock (_dbConnection)
{
MySqlCommand cmd =
new MySqlCommand(
"SELECT name, description, assetType, invType, local, temporary, data FROM assets WHERE id=?id",
_dbConnection.Connection);
MySqlParameter p = cmd.Parameters.Add("?id", MySqlDbType.Binary, 16);
p.Value = assetID.GetBytes();
try
{
using (MySqlDataReader dbReader = cmd.ExecuteReader(CommandBehavior.SingleRow))
{
if (dbReader.Read())
{
asset = new AssetBase();
asset.Data = (byte[]) dbReader["data"];
asset.Description = (string) dbReader["description"];
asset.FullID = assetID;
asset.InvType = (sbyte) dbReader["invType"];
asset.Local = ((sbyte) dbReader["local"]) != 0 ? true : false;
asset.Name = (string) dbReader["name"];
asset.Type = (sbyte) dbReader["assetType"];
}
dbReader.Close();
cmd.Dispose();
}
}
catch (Exception e)
{
m_log.ErrorFormat(
"[ASSETS]: MySql failure fetching asset {0}" + Environment.NewLine + e.ToString()
+ Environment.NewLine + "Attempting reconnection", assetID);
_dbConnection.Reconnect();
}
}
return asset;
}
override public void CreateAsset(AssetBase asset)
{
lock (_dbConnection)
{
MySqlCommand cmd =
new MySqlCommand(
"REPLACE INTO assets(id, name, description, assetType, invType, local, temporary, data)" +
"VALUES(?id, ?name, ?description, ?assetType, ?invType, ?local, ?temporary, ?data)",
_dbConnection.Connection);
// need to ensure we dispose
try
{
using (cmd)
{
MySqlParameter p = cmd.Parameters.Add("?id", MySqlDbType.Binary, 16);
p.Value = asset.FullID.GetBytes();
cmd.Parameters.AddWithValue("?name", asset.Name);
cmd.Parameters.AddWithValue("?description", asset.Description);
cmd.Parameters.AddWithValue("?assetType", asset.Type);
cmd.Parameters.AddWithValue("?invType", asset.InvType);
cmd.Parameters.AddWithValue("?local", asset.Local);
cmd.Parameters.AddWithValue("?temporary", asset.Temporary);
cmd.Parameters.AddWithValue("?data", asset.Data);
cmd.ExecuteNonQuery();
cmd.Dispose();
}
}
catch (Exception e)
{
m_log.ErrorFormat(
"[ASSETS]: " +
"MySql failure creating asset {0} with name {1}" + Environment.NewLine + e.ToString()
+ Environment.NewLine + "Attempting reconnection", asset.FullID, asset.Name);
_dbConnection.Reconnect();
}
}
}
override public void UpdateAsset(AssetBase asset)
{
CreateAsset(asset);
}
override public bool ExistsAsset(LLUUID uuid)
{
throw new Exception("The method or operation is not implemented.");
}
/// <summary>
/// All writes are immediately commited to the database, so this is a no-op
/// </summary>
override public void CommitAssets()
{
}
#endregion
#region IPlugin Members
override public void Initialise()
{
IniFile GridDataMySqlFile = new IniFile("mysql_connection.ini");
string hostname = GridDataMySqlFile.ParseFileReadValue("hostname");
string database = GridDataMySqlFile.ParseFileReadValue("database");
string username = GridDataMySqlFile.ParseFileReadValue("username");
string password = GridDataMySqlFile.ParseFileReadValue("password");
string pooling = GridDataMySqlFile.ParseFileReadValue("pooling");
string port = GridDataMySqlFile.ParseFileReadValue("port");
_dbConnection = new MySQLManager(hostname, database, username, password, pooling, port);
TestTables();
}
override public string Version
{
get { return _dbConnection.getVersion(); }
}
override public string Name
{
get { return "MySQL Asset storage engine"; }
}
#endregion
}
}
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