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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.Collections;
using System.Collections.Generic;
using System.Net;
using System.Reflection;
using System.Threading;
using System.Timers;
using log4net;
using Nwc.XmlRpc;
using OpenMetaverse;
using OpenSim.Data;
using OpenSim.Framework;
using OpenSim.Grid.Framework;
using Timer = System.Timers.Timer;
using OpenSim.Services.Interfaces;
using OpenSim.Services.Connectors;
using GridRegion = OpenSim.Services.Interfaces.GridRegion;
namespace OpenSim.Grid.MessagingServer.Modules
{
public class MessageRegionModule : IMessageRegionLookup
{
// private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private MessageServerConfig m_cfg;
private IInterServiceUserService m_userServerModule;
private IGridServiceCore m_messageCore;
private IGridService m_GridService;
// a dictionary of all current regions this server knows about
private Dictionary<ulong, RegionProfileData> m_regionInfoCache = new Dictionary<ulong, RegionProfileData>();
public MessageRegionModule(MessageServerConfig config, IGridServiceCore messageCore)
{
m_cfg = config;
m_messageCore = messageCore;
m_GridService = new GridServicesConnector(m_cfg.GridServerURL);
}
public void Initialise()
{
m_messageCore.RegisterInterface<IMessageRegionLookup>(this);
}
public void PostInitialise()
{
IInterServiceUserService messageUserServer;
if (m_messageCore.TryGet<IInterServiceUserService>(out messageUserServer))
{
m_userServerModule = messageUserServer;
}
}
public void RegisterHandlers()
{
//have these in separate method as some servers restart the http server and reregister all the handlers.
}
/// <summary>
/// Gets and caches a RegionInfo object from the gridserver based on regionhandle
/// if the regionhandle is already cached, use the cached values
/// Gets called by lots of threads!!!!!
/// </summary>
/// <param name="regionhandle">handle to the XY of the region we're looking for</param>
/// <returns>A RegionInfo object to stick in the presence info</returns>
public RegionProfileData GetRegionInfo(ulong regionhandle)
{
RegionProfileData regionInfo = null;
lock (m_regionInfoCache)
{
m_regionInfoCache.TryGetValue(regionhandle, out regionInfo);
}
if (regionInfo == null) // not found in cache
{
regionInfo = RequestRegionInfo(regionhandle);
if (regionInfo != null) // lookup was successful
{
lock (m_regionInfoCache)
{
m_regionInfoCache[regionhandle] = regionInfo;
}
}
}
return regionInfo;
}
public int ClearRegionCache()
{
int cachecount = 0;
lock (m_regionInfoCache)
{
cachecount = m_regionInfoCache.Count;
m_regionInfoCache.Clear();
}
return cachecount;
}
/// <summary>
/// Get RegionProfileData from the GridServer.
/// We'll cache this information in GetRegionInfo and use it for presence updates
/// </summary>
/// <param name="regionHandle"></param>
/// <returns></returns>
public RegionProfileData RequestRegionInfo(ulong regionHandle)
{
uint x = 0, y = 0;
Utils.LongToUInts(regionHandle, out x, out y);
GridRegion region = m_GridService.GetRegionByPosition(UUID.Zero, (int)x, (int)y);
if (region != null)
return GridRegionToRegionProfile(region);
else
return null;
}
private RegionProfileData GridRegionToRegionProfile(GridRegion region)
{
RegionProfileData rprofile = new RegionProfileData();
rprofile.httpPort = region.HttpPort;
rprofile.httpServerURI = region.ServerURI;
rprofile.regionLocX = (uint)(region.RegionLocX / Constants.RegionSize);
rprofile.regionLocY = (uint)(region.RegionLocY / Constants.RegionSize);
rprofile.RegionName = region.RegionName;
rprofile.ServerHttpPort = region.HttpPort;
rprofile.ServerIP = region.ExternalHostName;
rprofile.ServerPort = (uint)region.ExternalEndPoint.Port;
rprofile.Uuid = region.RegionID;
return rprofile;
}
public XmlRpcResponse RegionStartup(XmlRpcRequest request, IPEndPoint remoteClient)
{
Hashtable requestData = (Hashtable)request.Params[0];
Hashtable result = new Hashtable();
result["success"] = "FALSE";
if (m_userServerModule.SendToUserServer(requestData, "region_startup"))
result["success"] = "TRUE";
XmlRpcResponse response = new XmlRpcResponse();
response.Value = result;
return response;
}
public XmlRpcResponse RegionShutdown(XmlRpcRequest request, IPEndPoint remoteClient)
{
Hashtable requestData = (Hashtable)request.Params[0];
Hashtable result = new Hashtable();
result["success"] = "FALSE";
if (m_userServerModule.SendToUserServer(requestData, "region_shutdown"))
result["success"] = "TRUE";
XmlRpcResponse response = new XmlRpcResponse();
response.Value = result;
return response;
}
}
}
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