287 lines
12 KiB
C#
287 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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using System;
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using System.Data;
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using System.Reflection;
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using System.Collections.Generic;
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using OpenMetaverse;
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using log4net;
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using OpenSim.Framework;
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namespace OpenSim.Data.MSSQL
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{
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/// <summary>
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/// A MSSQL Interface for the Asset server
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/// </summary>
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public class MSSQLAssetData : AssetDataBase
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{
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private const string _migrationStore = "AssetStore";
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private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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private long m_ticksToEpoch;
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/// <summary>
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/// Database manager
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/// </summary>
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private MSSQLManager m_database;
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#region IPlugin Members
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override public void Dispose() { }
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/// <summary>
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/// <para>Initialises asset interface</para>
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/// </summary>
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// [Obsolete("Cannot be default-initialized!")]
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override public void Initialise()
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{
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m_log.Info("[MSSQLUserData]: " + Name + " cannot be default-initialized!");
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throw new PluginNotInitialisedException(Name);
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}
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/// <summary>
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/// Initialises asset interface
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/// </summary>
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/// <para>
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/// a string instead of file, if someone writes the support
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/// </para>
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/// <param name="connectionString">connect string</param>
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override public void Initialise(string connectionString)
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{
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m_ticksToEpoch = new System.DateTime(1970, 1, 1).Ticks;
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if (!string.IsNullOrEmpty(connectionString))
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{
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m_database = new MSSQLManager(connectionString);
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}
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else
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{
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IniFile gridDataMSSqlFile = new IniFile("mssql_connection.ini");
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string settingDataSource = gridDataMSSqlFile.ParseFileReadValue("data_source");
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string settingInitialCatalog = gridDataMSSqlFile.ParseFileReadValue("initial_catalog");
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string settingPersistSecurityInfo = gridDataMSSqlFile.ParseFileReadValue("persist_security_info");
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string settingUserId = gridDataMSSqlFile.ParseFileReadValue("user_id");
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string settingPassword = gridDataMSSqlFile.ParseFileReadValue("password");
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m_database =
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new MSSQLManager(settingDataSource, settingInitialCatalog, settingPersistSecurityInfo, settingUserId,
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settingPassword);
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}
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//New migration to check for DB changes
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m_database.CheckMigration(_migrationStore);
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}
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/// <summary>
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/// Database provider version.
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/// </summary>
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override public string Version
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{
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get { return m_database.getVersion(); }
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}
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/// <summary>
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/// The name of this DB provider.
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/// </summary>
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override public string Name
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{
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get { return "MSSQL Asset storage engine"; }
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}
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#endregion
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#region IAssetDataPlugin Members
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/// <summary>
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/// Fetch Asset from m_database
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/// </summary>
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/// <param name="assetID">the asset UUID</param>
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/// <returns></returns>
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override protected AssetBase FetchStoredAsset(UUID assetID)
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{
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using (AutoClosingSqlCommand command = m_database.Query("SELECT * FROM assets WHERE id = @id"))
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{
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command.Parameters.Add(m_database.CreateParameter("id", assetID));
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using (IDataReader reader = command.ExecuteReader())
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{
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if (reader.Read())
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{
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AssetBase asset = new AssetBase();
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// Region Main
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asset.FullID = new UUID((Guid)reader["id"]);
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asset.Name = (string)reader["name"];
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asset.Description = (string)reader["description"];
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asset.Type = Convert.ToSByte(reader["assetType"]);
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asset.Local = Convert.ToBoolean(reader["local"]);
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asset.Temporary = Convert.ToBoolean(reader["temporary"]);
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asset.Data = (byte[])reader["data"];
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return asset;
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}
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return null; // throw new Exception("No rows to return");
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}
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}
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}
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/// <summary>
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/// Create asset in m_database
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/// </summary>
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/// <param name="asset">the asset</param>
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override public void CreateAsset(AssetBase asset)
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{
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if (ExistsAsset(asset.FullID))
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{
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return;
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}
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using (AutoClosingSqlCommand command = m_database.Query(
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"INSERT INTO assets ([id], [name], [description], [assetType], [local], [temporary], [create_time], [access_time], [data])" +
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" VALUES " +
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"(@id, @name, @description, @assetType, @local, @temporary, @create_time, @access_time, @data)"))
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{
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int now = (int)((System.DateTime.Now.Ticks - m_ticksToEpoch) / 10000000);
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command.Parameters.Add(m_database.CreateParameter("id", asset.FullID));
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command.Parameters.Add(m_database.CreateParameter("name", asset.Name));
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command.Parameters.Add(m_database.CreateParameter("description", asset.Description));
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command.Parameters.Add(m_database.CreateParameter("assetType", asset.Type));
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command.Parameters.Add(m_database.CreateParameter("local", asset.Local));
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command.Parameters.Add(m_database.CreateParameter("temporary", asset.Temporary));
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command.Parameters.Add(m_database.CreateParameter("access_time", now));
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command.Parameters.Add(m_database.CreateParameter("create_time", now));
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command.Parameters.Add(m_database.CreateParameter("data", asset.Data));
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command.ExecuteNonQuery();
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}
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}
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/// <summary>
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/// Update asset in m_database
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/// </summary>
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/// <param name="asset">the asset</param>
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override public void UpdateAsset(AssetBase asset)
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{
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using (AutoClosingSqlCommand command = m_database.Query("UPDATE assets set id = @id, " +
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"name = @name, " +
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"description = @description," +
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"assetType = @assetType," +
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"local = @local," +
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"temporary = @temporary," +
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"data = @data where " +
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"id = @keyId;"))
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{
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command.Parameters.Add(m_database.CreateParameter("id", asset.FullID));
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command.Parameters.Add(m_database.CreateParameter("name", asset.Name));
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command.Parameters.Add(m_database.CreateParameter("description", asset.Description));
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command.Parameters.Add(m_database.CreateParameter("assetType", asset.Type));
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command.Parameters.Add(m_database.CreateParameter("local", asset.Local));
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command.Parameters.Add(m_database.CreateParameter("temporary", asset.Temporary));
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command.Parameters.Add(m_database.CreateParameter("data", asset.Data));
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command.Parameters.Add(m_database.CreateParameter("@keyId", asset.FullID));
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try
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{
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command.ExecuteNonQuery();
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}
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catch (Exception e)
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{
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m_log.Error(e.ToString());
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}
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}
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}
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// Commented out since currently unused - this probably should be called in FetchAsset()
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// private void UpdateAccessTime(AssetBase asset)
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// {
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// using (AutoClosingSqlCommand cmd = m_database.Query("UPDATE assets SET access_time = @access_time WHERE id=@id"))
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// {
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// int now = (int)((System.DateTime.Now.Ticks - m_ticksToEpoch) / 10000000);
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// cmd.Parameters.AddWithValue("@id", asset.FullID.ToString());
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// cmd.Parameters.AddWithValue("@access_time", now);
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// try
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// {
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// cmd.ExecuteNonQuery();
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// }
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// catch (Exception e)
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// {
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// m_log.Error(e.ToString());
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// }
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// }
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// }
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/// <summary>
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/// Check if asset exist in m_database
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/// </summary>
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/// <param name="uuid"></param>
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/// <returns>true if exist.</returns>
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override public bool ExistsAsset(UUID uuid)
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{
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if (FetchAsset(uuid) != null)
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{
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return true;
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}
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return false;
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}
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/// <summary>
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/// Returns a list of AssetMetadata objects. The list is a subset of
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/// the entire data set offset by <paramref name="start" /> containing
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/// <paramref name="count" /> elements.
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/// </summary>
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/// <param name="start">The number of results to discard from the total data set.</param>
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/// <param name="count">The number of rows the returned list should contain.</param>
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/// <returns>A list of AssetMetadata objects.</returns>
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public override List<AssetMetadata> FetchAssetMetadataSet(int start, int count)
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{
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List<AssetMetadata> retList = new List<AssetMetadata>(count);
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using (AutoClosingSqlCommand command = m_database.Query("SELECT (name,description,assetType,temporary,id), Row = ROW_NUMBER() OVER (ORDER BY (some column to order by)) WHERE Row >= @Start AND Row < @Start + @Count"))
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{
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command.Parameters.Add(m_database.CreateParameter("start", start));
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command.Parameters.Add(m_database.CreateParameter("count", count));
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using (IDataReader reader = command.ExecuteReader())
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{
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while (reader.Read())
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{
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AssetMetadata metadata = new AssetMetadata();
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// Region Main
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metadata.FullID = new UUID((Guid)reader["id"]);
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metadata.Name = (string)reader["name"];
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metadata.Description = (string)reader["description"];
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metadata.Type = Convert.ToSByte(reader["assetType"]);
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metadata.Temporary = Convert.ToBoolean(reader["temporary"]);
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}
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}
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}
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return retList;
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}
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#endregion
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}
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}
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