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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 OpenSimulator 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.Reflection;
using System.Data;
using System.Collections.Generic;
using OpenMetaverse;
using OpenSim.Framework;
using OpenSim.Data;
using Nini.Config;
using log4net;
namespace OpenSim.Grid.AssetInventoryServer.Plugins.OpenSim
{
public class OpenSimAssetStoragePlugin : IAssetStorageProvider
{
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
const string EXTENSION_NAME = "OpenSimAssetStorage"; // Used in metrics reporting
private AssetInventoryServer m_server;
private IAssetDataPlugin m_assetProvider;
private IConfig m_openSimConfig;
public OpenSimAssetStoragePlugin()
{
}
#region IAssetStorageProvider implementation
public BackendResponse TryFetchMetadata(UUID assetID, out AssetMetadata metadata)
{
metadata = null;
BackendResponse ret;
AssetBase asset = m_assetProvider.FetchAsset(assetID);
if (asset == null) ret = BackendResponse.NotFound;
else
{
metadata = asset.Metadata;
ret = BackendResponse.Success;
}
m_server.MetricsProvider.LogAssetMetadataFetch(EXTENSION_NAME, ret, assetID, DateTime.Now);
return ret;
}
public BackendResponse TryFetchData(UUID assetID, out byte[] assetData)
{
assetData = null;
BackendResponse ret;
AssetBase asset = m_assetProvider.FetchAsset(assetID);
if (asset == null) ret = BackendResponse.NotFound;
else
{
assetData = asset.Data;
ret = BackendResponse.Success;
}
m_server.MetricsProvider.LogAssetDataFetch(EXTENSION_NAME, ret, assetID, (assetData != null ? assetData.Length : 0), DateTime.Now);
return ret;
}
public BackendResponse TryFetchDataMetadata(UUID assetID, out AssetBase asset)
{
asset = m_assetProvider.FetchAsset(assetID);
if (asset == null) return BackendResponse.NotFound;
return BackendResponse.Success;
}
public BackendResponse TryCreateAsset(AssetBase asset, out UUID assetID)
{
assetID = asset.FullID = UUID.Random();
return TryCreateAsset(asset);
}
public BackendResponse TryCreateAsset(AssetBase asset)
{
BackendResponse ret;
m_assetProvider.CreateAsset(asset);
ret = BackendResponse.Success;
m_server.MetricsProvider.LogAssetCreate(EXTENSION_NAME, ret, asset.FullID, asset.Data.Length, DateTime.Now);
return ret;
}
public int ForEach(Action<AssetMetadata> action, int start, int count)
{
int rowCount = 0;
foreach (AssetMetadata metadata in m_assetProvider.FetchAssetMetadataSet(start, count))
{
// We set the ContentType here because Utils is only in
// AssetInventoryServer. This should be moved to the DB
// backends when the equivalent of SLAssetTypeToContentType is
// in OpenSim.Framework or similar.
metadata.ContentType = Utils.SLAssetTypeToContentType(metadata.Type);
action(metadata);
++rowCount;
}
return rowCount;
}
#endregion IAssetStorageProvider implementation
#region IPlugin implementation
public void Initialise(AssetInventoryServer server)
{
m_server = server;
m_openSimConfig = server.ConfigFile.Configs["OpenSim"];
try
{
m_assetProvider = DataPluginFactory.LoadDataPlugin<IAssetDataPlugin>(m_openSimConfig.GetString("asset_database_provider"),
m_openSimConfig.GetString("asset_database_connect"));
if (m_assetProvider == null)
{
m_log.Error("[OPENSIMASSETSTORAGE]: Failed to load a database plugin, server halting.");
Environment.Exit(-1);
}
else
m_log.InfoFormat("[OPENSIMASSETSTORAGE]: Loaded storage backend: {0}", Version);
}
catch (Exception e)
{
m_log.WarnFormat("[OPENSIMASSETSTORAGE]: Failure loading data plugin: {0}", e.ToString());
throw new PluginNotInitialisedException(Name);
}
}
/// <summary>
/// <para>Initialises asset interface</para>
/// </summary>
public void Initialise()
{
m_log.InfoFormat("[OPENSIMASSETSTORAGE]: {0} cannot be default-initialized!", Name);
throw new PluginNotInitialisedException(Name);
}
public void Dispose()
{
}
public string Version
{
get { return m_assetProvider.Version; }
}
public string Name
{
get { return "OpenSimAssetStorage"; }
}
#endregion IPlugin implementation
}
}
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