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