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/*
* Copyright (c) 2008 Intel Corporation
* All rights reserved.
* 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 Intel Corporation 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 COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``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 INTEL OR ITS
* 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.Net;
using System.Data;
using MySql.Data.MySqlClient;
using ExtensionLoader;
using ExtensionLoader.Config;
using OpenMetaverse;
using OpenMetaverse.StructuredData;
namespace OpenSim.Grid.AssetInventoryServer.Extensions
{
public class OpenSimMySQLStorage : IExtension<AssetInventoryServer>, IStorageProvider
{
const string EXTENSION_NAME = "OpenSimMySQLStorage"; // Used in metrics reporting
AssetInventoryServer server;
public OpenSimMySQLStorage()
{
}
#region Required Interfaces
public void Start(AssetInventoryServer server)
{
this.server = server;
using (MySqlConnection dbConnection = new MySqlConnection(DBConnString.GetConnectionString(server.ConfigFile)))
{
try
{
dbConnection.Open();
Logger.Log.Info("Connected to MySQL storage backend: " + dbConnection.ServerVersion);
}
catch (MySqlException ex)
{
Logger.Log.Error("Connection to MySQL storage backend failed: " + ex.Message);
}
}
}
public void Stop()
{
}
public BackendResponse TryFetchMetadata(UUID assetID, out Metadata metadata)
{
metadata = null;
BackendResponse ret;
using (MySqlConnection dbConnection = new MySqlConnection(DBConnString.GetConnectionString(server.ConfigFile)))
{
IDataReader reader;
try
{
dbConnection.Open();
IDbCommand command = dbConnection.CreateCommand();
command.CommandText = String.Format("SELECT name,description,assetType,temporary FROM assets WHERE id='{0}'", assetID.ToString());
reader = command.ExecuteReader();
if (reader.Read())
{
metadata = new Metadata();
metadata.CreationDate = OpenMetaverse.Utils.Epoch;
metadata.SHA1 = null;
metadata.ID = assetID;
metadata.Name = reader.GetString(0);
metadata.Description = reader.GetString(1);
metadata.ContentType = Utils.SLAssetTypeToContentType(reader.GetInt32(2));
metadata.Temporary = reader.GetBoolean(3);
ret = BackendResponse.Success;
}
else
{
ret = BackendResponse.NotFound;
}
}
catch (MySqlException ex)
{
Logger.Log.Error("Connection to MySQL backend failed: " + ex.Message);
ret = BackendResponse.Failure;
}
}
server.MetricsProvider.LogAssetMetadataFetch(EXTENSION_NAME, ret, assetID, DateTime.Now);
return ret;
}
public BackendResponse TryFetchData(UUID assetID, out byte[] assetData)
{
assetData = null;
BackendResponse ret;
using (MySqlConnection dbConnection = new MySqlConnection(DBConnString.GetConnectionString(server.ConfigFile)))
{
IDataReader reader;
try
{
dbConnection.Open();
IDbCommand command = dbConnection.CreateCommand();
command.CommandText = String.Format("SELECT data FROM assets WHERE id='{0}'", assetID.ToString());
reader = command.ExecuteReader();
if (reader.Read())
{
assetData = (byte[])reader.GetValue(0);
ret = BackendResponse.Success;
}
else
{
ret = BackendResponse.NotFound;
}
}
catch (MySqlException ex)
{
Logger.Log.Error("Connection to MySQL backend failed: " + ex.Message);
ret = BackendResponse.Failure;
}
}
server.MetricsProvider.LogAssetDataFetch(EXTENSION_NAME, ret, assetID, (assetData != null ? assetData.Length : 0), DateTime.Now);
return ret;
}
public BackendResponse TryFetchDataMetadata(UUID assetID, out Metadata metadata, out byte[] assetData)
{
metadata = null;
assetData = null;
BackendResponse ret;
using (MySqlConnection dbConnection = new MySqlConnection(DBConnString.GetConnectionString(server.ConfigFile)))
{
IDataReader reader;
try
{
dbConnection.Open();
IDbCommand command = dbConnection.CreateCommand();
command.CommandText = String.Format("SELECT name,description,assetType,temporary,data FROM assets WHERE id='{0}'", assetID.ToString());
reader = command.ExecuteReader();
if (reader.Read())
{
metadata = new Metadata();
metadata.CreationDate = OpenMetaverse.Utils.Epoch;
metadata.SHA1 = null;
metadata.ID = assetID;
metadata.Name = reader.GetString(0);
metadata.Description = reader.GetString(1);
metadata.ContentType = Utils.SLAssetTypeToContentType(reader.GetInt32(2));
metadata.Temporary = reader.GetBoolean(3);
assetData = (byte[])reader.GetValue(4);
ret = BackendResponse.Success;
}
else
{
ret = BackendResponse.NotFound;
}
}
catch (MySqlException ex)
{
Logger.Log.Error("Connection to MySQL backend failed: " + ex.Message);
ret = BackendResponse.Failure;
}
}
server.MetricsProvider.LogAssetMetadataFetch(EXTENSION_NAME, ret, assetID, DateTime.Now);
server.MetricsProvider.LogAssetDataFetch(EXTENSION_NAME, ret, assetID, (assetData != null ? assetData.Length : 0), DateTime.Now);
return ret;
}
public BackendResponse TryCreateAsset(Metadata metadata, byte[] assetData, out UUID assetID)
{
assetID = metadata.ID = UUID.Random();
return TryCreateAsset(metadata, assetData);
}
public BackendResponse TryCreateAsset(Metadata metadata, byte[] assetData)
{
BackendResponse ret;
using (MySqlConnection dbConnection = new MySqlConnection(DBConnString.GetConnectionString(server.ConfigFile)))
{
try
{
dbConnection.Open();
MySqlCommand command = new MySqlCommand(
"REPLACE INTO assets (name,description,assetType,local,temporary,data,id) VALUES " +
"(?name,?description,?assetType,?local,?temporary,?data,?id)", dbConnection);
command.Parameters.AddWithValue("?name", metadata.Name);
command.Parameters.AddWithValue("?description", metadata.Description);
command.Parameters.AddWithValue("?assetType", Utils.ContentTypeToSLAssetType(metadata.ContentType));
command.Parameters.AddWithValue("?local", 0);
command.Parameters.AddWithValue("?temporary", metadata.Temporary);
command.Parameters.AddWithValue("?data", assetData);
command.Parameters.AddWithValue("?id", metadata.ID.ToString());
int rowsAffected = command.ExecuteNonQuery();
if (rowsAffected == 1)
{
ret = BackendResponse.Success;
}
else if (rowsAffected == 2)
{
Logger.Log.Info("Replaced asset " + metadata.ID.ToString());
ret = BackendResponse.Success;
}
else
{
Logger.Log.ErrorFormat("MySQL REPLACE query affected {0} rows", rowsAffected);
ret = BackendResponse.Failure;
}
}
catch (MySqlException ex)
{
Logger.Log.Error("Connection to MySQL backend failed: " + ex.Message);
ret = BackendResponse.Failure;
}
}
server.MetricsProvider.LogAssetCreate(EXTENSION_NAME, ret, metadata.ID, assetData.Length, DateTime.Now);
return ret;
}
public int ForEach(Action<Metadata> action, int start, int count)
{
int rowCount = 0;
using (MySqlConnection dbConnection = new MySqlConnection(DBConnString.GetConnectionString(server.ConfigFile)))
{
MySqlDataReader reader;
try
{
dbConnection.Open();
MySqlCommand command = dbConnection.CreateCommand();
command.CommandText = String.Format("SELECT name,description,assetType,temporary,data,id FROM assets LIMIT {0}, {1}",
start, count);
reader = command.ExecuteReader();
}
catch (MySqlException ex)
{
Logger.Log.Error("Connection to MySQL backend failed: " + ex.Message);
return 0;
}
while (reader.Read())
{
Metadata metadata = new Metadata();
metadata.CreationDate = OpenMetaverse.Utils.Epoch;
metadata.Description = reader.GetString(1);
metadata.ID = UUID.Parse(reader.GetString(5));
metadata.Name = reader.GetString(0);
metadata.SHA1 = OpenMetaverse.Utils.SHA1((byte[])reader.GetValue(4));
metadata.Temporary = reader.GetBoolean(3);
metadata.ContentType = Utils.SLAssetTypeToContentType(reader.GetInt32(2));
action(metadata);
++rowCount;
}
reader.Close();
}
return rowCount;
}
#endregion Required Interfaces
}
}
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