clockwerk-opensim – Rev 1
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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 log4net;
using Nini.Config;
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Reflection;
using System.Web;
using OpenSim.Framework;
using OpenSim.Services.Interfaces;
using OpenSim.Services.Connectors.Hypergrid;
using OpenSim.Services.Connectors.SimianGrid;
using OpenMetaverse;
namespace OpenSim.Services.Connectors
{
public class HGAssetServiceConnector : IAssetService
{
private static readonly ILog m_log =
LogManager.GetLogger(
MethodBase.GetCurrentMethod().DeclaringType);
private Dictionary<IAssetService, object> m_endpointSerializer = new Dictionary<IAssetService, object>();
private object EndPointLock(IAssetService connector)
{
lock (m_endpointSerializer)
{
object eplock = null;
if (! m_endpointSerializer.TryGetValue(connector, out eplock))
{
eplock = new object();
m_endpointSerializer.Add(connector, eplock);
// m_log.WarnFormat("[WEB UTIL] add a new host to end point serializer {0}",endpoint);
}
return eplock;
}
}
private Dictionary<string, IAssetService> m_connectors = new Dictionary<string, IAssetService>();
public HGAssetServiceConnector(IConfigSource source)
{
IConfig moduleConfig = source.Configs["Modules"];
if (moduleConfig != null)
{
// string name = moduleConfig.GetString("AssetServices", "");
IConfig assetConfig = source.Configs["AssetService"];
if (assetConfig == null)
{
m_log.Error("[HG ASSET SERVICE]: AssetService missing from OpenSim.ini");
return;
}
m_log.Info("[HG ASSET SERVICE]: HG asset service enabled");
}
}
private IAssetService GetConnector(string url)
{
IAssetService connector = null;
lock (m_connectors)
{
if (m_connectors.ContainsKey(url))
{
connector = m_connectors[url];
}
else
{
// Still not as flexible as I would like this to be,
// but good enough for now
string connectorType = new HeloServicesConnector(url).Helo();
m_log.DebugFormat("[HG ASSET SERVICE]: HELO returned {0}", connectorType);
if (connectorType == "opensim-simian")
{
connector = new SimianAssetServiceConnector(url);
}
else
connector = new AssetServicesConnector(url);
m_connectors.Add(url, connector);
}
}
return connector;
}
public AssetBase Get(string id)
{
string url = string.Empty;
string assetID = string.Empty;
if (Util.ParseForeignAssetID(id, out url, out assetID))
{
IAssetService connector = GetConnector(url);
return connector.Get(assetID);
}
return null;
}
public AssetBase GetCached(string id)
{
string url = string.Empty;
string assetID = string.Empty;
if (Util.ParseForeignAssetID(id, out url, out assetID))
{
IAssetService connector = GetConnector(url);
return connector.GetCached(assetID);
}
return null;
}
public AssetMetadata GetMetadata(string id)
{
string url = string.Empty;
string assetID = string.Empty;
if (Util.ParseForeignAssetID(id, out url, out assetID))
{
IAssetService connector = GetConnector(url);
return connector.GetMetadata(assetID);
}
return null;
}
public byte[] GetData(string id)
{
return null;
}
public bool Get(string id, Object sender, AssetRetrieved handler)
{
string url = string.Empty;
string assetID = string.Empty;
if (Util.ParseForeignAssetID(id, out url, out assetID))
{
IAssetService connector = GetConnector(url);
return connector.Get(assetID, sender, handler);
}
return false;
}
private struct AssetAndIndex
{
public UUID assetID;
public int index;
public AssetAndIndex(UUID assetID, int index)
{
this.assetID = assetID;
this.index = index;
}
}
public virtual bool[] AssetsExist(string[] ids)
{
// This method is a bit complicated because it works even if the assets belong to different
// servers; that requires sending separate requests to each server.
// Group the assets by the server they belong to
var url2assets = new Dictionary<string, List<AssetAndIndex>>();
for (int i = 0; i < ids.Length; i++)
{
string url = string.Empty;
string assetID = string.Empty;
if (Util.ParseForeignAssetID(ids[i], out url, out assetID))
{
if (!url2assets.ContainsKey(url))
url2assets.Add(url, new List<AssetAndIndex>());
url2assets[url].Add(new AssetAndIndex(UUID.Parse(assetID), i));
}
}
// Query each of the servers in turn
bool[] exist = new bool[ids.Length];
foreach (string url in url2assets.Keys)
{
IAssetService connector = GetConnector(url);
lock (EndPointLock(connector))
{
List<AssetAndIndex> curAssets = url2assets[url];
string[] assetIDs = curAssets.ConvertAll(a => a.assetID.ToString()).ToArray();
bool[] curExist = connector.AssetsExist(assetIDs);
int i = 0;
foreach (AssetAndIndex ai in curAssets)
{
exist[ai.index] = curExist[i];
++i;
}
}
}
return exist;
}
public string Store(AssetBase asset)
{
string url = string.Empty;
string assetID = string.Empty;
if (Util.ParseForeignAssetID(asset.ID, out url, out assetID))
{
IAssetService connector = GetConnector(url);
// Restore the assetID to a simple UUID
asset.ID = assetID;
lock (EndPointLock(connector))
return connector.Store(asset);
}
return String.Empty;
}
public bool UpdateContent(string id, byte[] data)
{
return false;
}
public bool Delete(string id)
{
return false;
}
}
}