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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.IO;
using Db4objects.Db4o;
using Db4objects.Db4o.Query;
using libsecondlife;
using OpenSim.Framework.Console;
namespace OpenSim.Framework.Communications.Cache
{
public class LocalAssetServer : AssetServerBase
{
private IObjectContainer db;
public LocalAssetServer()
{
bool yapfile;
yapfile = File.Exists(Path.Combine(Util.dataDir(), "regionassets.yap"));
db = Db4oFactory.OpenFile(Path.Combine(Util.dataDir(), "regionassets.yap"));
MainLog.Instance.Verbose("ASSETS", "Db4 Asset database creation");
if (!yapfile)
{
SetUpAssetDatabase();
}
}
public void CreateAndCommitAsset(AssetBase asset)
{
AssetStorage store = new AssetStorage();
store.Data = asset.Data;
store.Name = asset.Name;
store.UUID = asset.FullID;
db.Set(store);
db.Commit();
}
public override void Close()
{
base.Close();
if (db != null)
{
MainLog.Instance.Verbose("ASSETSERVER", "Closing local asset server database");
db.Close();
}
}
protected override AssetBase GetAsset(AssetRequest req)
{
byte[] idata = null;
bool found = false;
AssetStorage foundAsset = null;
IObjectSet result = db.Query(new AssetUUIDQuery(req.AssetID));
if (result.Count > 0)
{
foundAsset = (AssetStorage) result.Next();
found = true;
}
AssetBase asset = new AssetBase();
if (found)
{
asset.FullID = foundAsset.UUID;
asset.Type = foundAsset.Type;
asset.InvType = foundAsset.Type;
asset.Name = foundAsset.Name;
idata = foundAsset.Data;
asset.Data = idata;
return asset;
}
else
{
return null;
}
}
protected override void StoreAsset(AssetBase asset)
{
AssetStorage store = new AssetStorage();
store.Data = asset.Data;
store.Name = asset.Name;
store.UUID = asset.FullID;
db.Set(store);
CommitAssets();
}
protected override void CommitAssets()
{
db.Commit();
}
protected virtual void SetUpAssetDatabase()
{
MainLog.Instance.Verbose("LOCAL ASSET SERVER", "Setting up asset database");
ForEachDefaultAsset(StoreAsset);
ForEachXmlAsset(StoreAsset);
}
}
public class AssetUUIDQuery : Predicate
{
private LLUUID _findID;
public AssetUUIDQuery(LLUUID find)
{
_findID = find;
}
public bool Match(AssetStorage asset)
{
return (asset.UUID == _findID);
}
}
}
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