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312 lines
12 KiB
C#
312 lines
12 KiB
C#
/*
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* Copyright (c) 2008 Intel Corporation
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* All rights reserved.
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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
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* are met:
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*
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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 Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE INTEL OR ITS
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* 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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using System;
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using System.Collections.Generic;
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using System.Net;
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using System.Data;
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using MySql.Data.MySqlClient;
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using ExtensionLoader;
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using ExtensionLoader.Config;
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using OpenMetaverse;
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using OpenMetaverse.StructuredData;
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namespace OpenSim.Grid.AssetInventoryServer.Extensions
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{
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public class OpenSimMySQLStorage : IExtension<AssetInventoryServer>, IStorageProvider
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{
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const string EXTENSION_NAME = "OpenSimMySQLStorage"; // Used in metrics reporting
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AssetInventoryServer server;
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public OpenSimMySQLStorage()
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{
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}
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#region Required Interfaces
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public void Start(AssetInventoryServer server)
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{
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this.server = server;
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using (MySqlConnection dbConnection = new MySqlConnection(DBConnString.GetConnectionString(server.ConfigFile)))
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{
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try
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{
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dbConnection.Open();
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Logger.Log.Info("Connected to MySQL storage backend: " + dbConnection.ServerVersion);
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}
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catch (MySqlException ex)
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{
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Logger.Log.Error("Connection to MySQL storage backend failed: " + ex.Message);
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}
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}
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}
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public void Stop()
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{
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}
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public BackendResponse TryFetchMetadata(UUID assetID, out Metadata metadata)
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{
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metadata = null;
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BackendResponse ret;
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using (MySqlConnection dbConnection = new MySqlConnection(DBConnString.GetConnectionString(server.ConfigFile)))
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{
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IDataReader reader;
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try
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{
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dbConnection.Open();
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IDbCommand command = dbConnection.CreateCommand();
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command.CommandText = String.Format("SELECT name,description,assetType,temporary FROM assets WHERE id='{0}'", assetID.ToString());
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reader = command.ExecuteReader();
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if (reader.Read())
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{
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metadata = new Metadata();
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metadata.CreationDate = OpenMetaverse.Utils.Epoch;
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metadata.SHA1 = null;
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metadata.ID = assetID;
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metadata.Name = reader.GetString(0);
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metadata.Description = reader.GetString(1);
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metadata.ContentType = Utils.SLAssetTypeToContentType(reader.GetInt32(2));
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metadata.Temporary = reader.GetBoolean(3);
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ret = BackendResponse.Success;
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}
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else
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{
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ret = BackendResponse.NotFound;
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}
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}
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catch (MySqlException ex)
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{
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Logger.Log.Error("Connection to MySQL backend failed: " + ex.Message);
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ret = BackendResponse.Failure;
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}
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}
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server.MetricsProvider.LogAssetMetadataFetch(EXTENSION_NAME, ret, assetID, DateTime.Now);
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return ret;
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}
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public BackendResponse TryFetchData(UUID assetID, out byte[] assetData)
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{
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assetData = null;
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BackendResponse ret;
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using (MySqlConnection dbConnection = new MySqlConnection(DBConnString.GetConnectionString(server.ConfigFile)))
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{
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IDataReader reader;
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try
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{
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dbConnection.Open();
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IDbCommand command = dbConnection.CreateCommand();
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command.CommandText = String.Format("SELECT data FROM assets WHERE id='{0}'", assetID.ToString());
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reader = command.ExecuteReader();
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if (reader.Read())
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{
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assetData = (byte[])reader.GetValue(0);
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ret = BackendResponse.Success;
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}
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else
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{
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ret = BackendResponse.NotFound;
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}
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}
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catch (MySqlException ex)
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{
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Logger.Log.Error("Connection to MySQL backend failed: " + ex.Message);
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ret = BackendResponse.Failure;
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}
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}
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server.MetricsProvider.LogAssetDataFetch(EXTENSION_NAME, ret, assetID, (assetData != null ? assetData.Length : 0), DateTime.Now);
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return ret;
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}
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public BackendResponse TryFetchDataMetadata(UUID assetID, out Metadata metadata, out byte[] assetData)
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{
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metadata = null;
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assetData = null;
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BackendResponse ret;
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using (MySqlConnection dbConnection = new MySqlConnection(DBConnString.GetConnectionString(server.ConfigFile)))
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{
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IDataReader reader;
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try
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{
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dbConnection.Open();
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IDbCommand command = dbConnection.CreateCommand();
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command.CommandText = String.Format("SELECT name,description,assetType,temporary,data FROM assets WHERE id='{0}'", assetID.ToString());
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reader = command.ExecuteReader();
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if (reader.Read())
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{
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metadata = new Metadata();
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metadata.CreationDate = OpenMetaverse.Utils.Epoch;
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metadata.SHA1 = null;
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metadata.ID = assetID;
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metadata.Name = reader.GetString(0);
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metadata.Description = reader.GetString(1);
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metadata.ContentType = Utils.SLAssetTypeToContentType(reader.GetInt32(2));
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metadata.Temporary = reader.GetBoolean(3);
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assetData = (byte[])reader.GetValue(4);
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ret = BackendResponse.Success;
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}
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else
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{
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ret = BackendResponse.NotFound;
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}
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}
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catch (MySqlException ex)
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{
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Logger.Log.Error("Connection to MySQL backend failed: " + ex.Message);
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ret = BackendResponse.Failure;
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}
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}
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server.MetricsProvider.LogAssetMetadataFetch(EXTENSION_NAME, ret, assetID, DateTime.Now);
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server.MetricsProvider.LogAssetDataFetch(EXTENSION_NAME, ret, assetID, (assetData != null ? assetData.Length : 0), DateTime.Now);
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return ret;
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}
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public BackendResponse TryCreateAsset(Metadata metadata, byte[] assetData, out UUID assetID)
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{
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assetID = metadata.ID = UUID.Random();
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return TryCreateAsset(metadata, assetData);
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}
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public BackendResponse TryCreateAsset(Metadata metadata, byte[] assetData)
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{
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BackendResponse ret;
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using (MySqlConnection dbConnection = new MySqlConnection(DBConnString.GetConnectionString(server.ConfigFile)))
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{
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try
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{
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dbConnection.Open();
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MySqlCommand command = new MySqlCommand(
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"REPLACE INTO assets (name,description,assetType,local,temporary,data,id) VALUES " +
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"(?name,?description,?assetType,?local,?temporary,?data,?id)", dbConnection);
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command.Parameters.AddWithValue("?name", metadata.Name);
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command.Parameters.AddWithValue("?description", metadata.Description);
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command.Parameters.AddWithValue("?assetType", Utils.ContentTypeToSLAssetType(metadata.ContentType));
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command.Parameters.AddWithValue("?local", 0);
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command.Parameters.AddWithValue("?temporary", metadata.Temporary);
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command.Parameters.AddWithValue("?data", assetData);
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command.Parameters.AddWithValue("?id", metadata.ID.ToString());
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int rowsAffected = command.ExecuteNonQuery();
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if (rowsAffected == 1)
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{
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ret = BackendResponse.Success;
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}
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else if (rowsAffected == 2)
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{
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Logger.Log.Info("Replaced asset " + metadata.ID.ToString());
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ret = BackendResponse.Success;
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}
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else
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{
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Logger.Log.ErrorFormat("MySQL REPLACE query affected {0} rows", rowsAffected);
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ret = BackendResponse.Failure;
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}
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}
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catch (MySqlException ex)
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{
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Logger.Log.Error("Connection to MySQL backend failed: " + ex.Message);
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ret = BackendResponse.Failure;
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}
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}
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server.MetricsProvider.LogAssetCreate(EXTENSION_NAME, ret, metadata.ID, assetData.Length, DateTime.Now);
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return ret;
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}
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public int ForEach(Action<Metadata> action, int start, int count)
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{
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int rowCount = 0;
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using (MySqlConnection dbConnection = new MySqlConnection(DBConnString.GetConnectionString(server.ConfigFile)))
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{
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MySqlDataReader reader;
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try
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{
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dbConnection.Open();
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MySqlCommand command = dbConnection.CreateCommand();
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command.CommandText = String.Format("SELECT name,description,assetType,temporary,data,id FROM assets LIMIT {0}, {1}",
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start, count);
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reader = command.ExecuteReader();
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}
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catch (MySqlException ex)
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{
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Logger.Log.Error("Connection to MySQL backend failed: " + ex.Message);
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return 0;
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}
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while (reader.Read())
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{
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Metadata metadata = new Metadata();
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metadata.CreationDate = OpenMetaverse.Utils.Epoch;
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metadata.Description = reader.GetString(1);
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metadata.ID = UUID.Parse(reader.GetString(5));
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metadata.Name = reader.GetString(0);
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metadata.SHA1 = OpenMetaverse.Utils.SHA1((byte[])reader.GetValue(4));
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metadata.Temporary = reader.GetBoolean(3);
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metadata.ContentType = Utils.SLAssetTypeToContentType(reader.GetInt32(2));
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action(metadata);
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++rowCount;
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}
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reader.Close();
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}
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return rowCount;
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}
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#endregion Required Interfaces
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}
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}
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