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/*
* Copyright (c) Contributors, http://www.openmetaverse.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.IO;
using System.Threading;
using System.Reflection;
using libsecondlife;
using Nini.Config;
using OpenSim.Framework.Console;
using OpenSim.Framework.Interfaces;
using OpenSim.Framework.Types;
using OpenSim.Framework.Utilities;
namespace OpenSim.Framework.Communications.Cache
{
public class SQLAssetServer : AssetServerBase
{
public SQLAssetServer(string pluginName)
{
_assetRequests = new BlockingQueue<ARequest>();
AddPlugin(pluginName);
this._localAssetServerThread = new Thread(new ThreadStart(RunRequests));
this._localAssetServerThread.IsBackground = true;
this._localAssetServerThread.Start();
}
public SQLAssetServer(IAssetProvider assetProvider)
{
m_assetProviderPlugin = assetProvider;
}
public void AddPlugin(string FileName)
{
MainLog.Instance.Verbose("SQLAssetServer", "AssetStorage: Attempting to load " + FileName);
Assembly pluginAssembly = Assembly.LoadFrom(FileName);
foreach (Type pluginType in pluginAssembly.GetTypes())
{
if (!pluginType.IsAbstract)
{
Type typeInterface = pluginType.GetInterface("IAssetProvider", true);
if (typeInterface != null)
{
IAssetProvider plug = (IAssetProvider)Activator.CreateInstance(pluginAssembly.GetType(pluginType.ToString()));
m_assetProviderPlugin = plug;
m_assetProviderPlugin.Initialise();
MainLog.Instance.Verbose("AssetStorage: Added " + m_assetProviderPlugin.Name + " " + m_assetProviderPlugin.Version);
}
typeInterface = null;
}
}
pluginAssembly = null;
}
public override void Close()
{
m_assetProviderPlugin.CommitAssets();
}
private void RunRequests()
{
while (true)
{
ARequest req = this._assetRequests.Dequeue();
MainLog.Instance.Verbose("Requesting asset: " + req.AssetID);
AssetBase asset = null;
lock (syncLock)
{
asset = m_assetProviderPlugin.FetchAsset(req.AssetID);
}
if (asset != null)
{
_receiver.AssetReceived(asset, req.IsTexture);
}
else
{
_receiver.AssetNotFound(req.AssetID);
}
}
}
protected override void StoreAsset(AssetBase asset)
{
m_assetProviderPlugin.CreateAsset(asset);
}
protected override void CommitAssets()
{
m_assetProviderPlugin.CommitAssets();
}
}
}
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