opensim-development – 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 Mono.Addins;
using Nini.Config;
using System;
using System.Collections.Generic;
using System.Reflection;
using OpenSim.Framework;
using OpenSim.Framework.Console;
using OpenSim.Server.Base;
using OpenSim.Region.Framework.Interfaces;
using OpenSim.Region.Framework.Scenes;
using OpenSim.Services.Interfaces;
using GridRegion = OpenSim.Services.Interfaces.GridRegion;
using OpenMetaverse;
namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Grid
{
[Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "LocalGridServicesConnector")]
public class LocalGridServicesConnector : ISharedRegionModule, IGridService
{
private static readonly ILog m_log =
LogManager.GetLogger(
MethodBase.GetCurrentMethod().DeclaringType);
private static string LogHeader = "[LOCAL GRID SERVICE CONNECTOR]";
private IGridService m_GridService;
private Dictionary<UUID, RegionCache> m_LocalCache = new Dictionary<UUID, RegionCache>();
private bool m_Enabled;
public LocalGridServicesConnector()
{
m_log.DebugFormat("{0} LocalGridServicesConnector no parms.", LogHeader);
}
public LocalGridServicesConnector(IConfigSource source)
{
m_log.DebugFormat("{0} LocalGridServicesConnector instantiated directly.", LogHeader);
InitialiseService(source);
}
#region ISharedRegionModule
public Type ReplaceableInterface
{
get { return null; }
}
public string Name
{
get { return "LocalGridServicesConnector"; }
}
public void Initialise(IConfigSource source)
{
IConfig moduleConfig = source.Configs["Modules"];
if (moduleConfig != null)
{
string name = moduleConfig.GetString("GridServices", "");
if (name == Name)
{
InitialiseService(source);
m_log.Info("[LOCAL GRID SERVICE CONNECTOR]: Local grid connector enabled");
}
}
}
private void InitialiseService(IConfigSource source)
{
IConfig assetConfig = source.Configs["GridService"];
if (assetConfig == null)
{
m_log.Error("[LOCAL GRID SERVICE CONNECTOR]: GridService missing from OpenSim.ini");
return;
}
string serviceDll = assetConfig.GetString("LocalServiceModule",
String.Empty);
if (serviceDll == String.Empty)
{
m_log.Error("[LOCAL GRID SERVICE CONNECTOR]: No LocalServiceModule named in section GridService");
return;
}
Object[] args = new Object[] { source };
m_GridService =
ServerUtils.LoadPlugin<IGridService>(serviceDll,
args);
if (m_GridService == null)
{
m_log.Error("[LOCAL GRID SERVICE CONNECTOR]: Can't load grid service");
return;
}
m_Enabled = true;
}
public void PostInitialise()
{
// FIXME: We will still add this command even if we aren't enabled since RemoteGridServiceConnector
// will have instantiated us directly.
MainConsole.Instance.Commands.AddCommand("Regions", false, "show neighbours",
"show neighbours",
"Shows the local regions' neighbours", HandleShowNeighboursCommand);
}
public void Close()
{
}
public void AddRegion(Scene scene)
{
if (!m_Enabled)
return;
scene.RegisterModuleInterface<IGridService>(this);
lock (m_LocalCache)
{
if (m_LocalCache.ContainsKey(scene.RegionInfo.RegionID))
m_log.ErrorFormat("[LOCAL GRID SERVICE CONNECTOR]: simulator seems to have more than one region with the same UUID. Please correct this!");
else
m_LocalCache.Add(scene.RegionInfo.RegionID, new RegionCache(scene));
}
}
public void RemoveRegion(Scene scene)
{
if (!m_Enabled)
return;
lock (m_LocalCache)
{
m_LocalCache[scene.RegionInfo.RegionID].Clear();
m_LocalCache.Remove(scene.RegionInfo.RegionID);
}
}
public void RegionLoaded(Scene scene)
{
}
#endregion
#region IGridService
public string RegisterRegion(UUID scopeID, GridRegion regionInfo)
{
return m_GridService.RegisterRegion(scopeID, regionInfo);
}
public bool DeregisterRegion(UUID regionID)
{
return m_GridService.DeregisterRegion(regionID);
}
public List<GridRegion> GetNeighbours(UUID scopeID, UUID regionID)
{
return m_GridService.GetNeighbours(scopeID, regionID);
}
public GridRegion GetRegionByUUID(UUID scopeID, UUID regionID)
{
return m_GridService.GetRegionByUUID(scopeID, regionID);
}
// Get a region given its base coordinates.
// NOTE: this is NOT 'get a region by some point in the region'. The coordinate MUST
// be the base coordinate of the region.
public GridRegion GetRegionByPosition(UUID scopeID, int x, int y)
{
GridRegion region = null;
// First see if it's a neighbour, even if it isn't on this sim.
// Neighbour data is cached in memory, so this is fast
lock (m_LocalCache)
{
foreach (RegionCache rcache in m_LocalCache.Values)
{
region = rcache.GetRegionByPosition(x, y);
if (region != null)
{
// m_log.DebugFormat("{0} GetRegionByPosition. Found region {1} in cache. Pos=<{2},{3}>",
// LogHeader, region.RegionName, x, y);
break;
}
}
}
// Then try on this sim (may be a lookup in DB if this is using MySql).
if (region == null)
{
region = m_GridService.GetRegionByPosition(scopeID, x, y);
if (region == null)
m_log.DebugFormat("{0} GetRegionByPosition. Region not found by grid service. Pos=<{1},{2}>",
LogHeader, x, y);
else
m_log.DebugFormat("{0} GetRegionByPosition. Requested region {1} from grid service. Pos=<{2},{3}>",
LogHeader, region.RegionName, x, y);
}
return region;
}
public GridRegion GetRegionByName(UUID scopeID, string regionName)
{
return m_GridService.GetRegionByName(scopeID, regionName);
}
public List<GridRegion> GetRegionsByName(UUID scopeID, string name, int maxNumber)
{
return m_GridService.GetRegionsByName(scopeID, name, maxNumber);
}
public List<GridRegion> GetRegionRange(UUID scopeID, int xmin, int xmax, int ymin, int ymax)
{
return m_GridService.GetRegionRange(scopeID, xmin, xmax, ymin, ymax);
}
public List<GridRegion> GetDefaultRegions(UUID scopeID)
{
return m_GridService.GetDefaultRegions(scopeID);
}
public List<GridRegion> GetDefaultHypergridRegions(UUID scopeID)
{
return m_GridService.GetDefaultHypergridRegions(scopeID);
}
public List<GridRegion> GetFallbackRegions(UUID scopeID, int x, int y)
{
return m_GridService.GetFallbackRegions(scopeID, x, y);
}
public List<GridRegion> GetHyperlinks(UUID scopeID)
{
return m_GridService.GetHyperlinks(scopeID);
}
public int GetRegionFlags(UUID scopeID, UUID regionID)
{
return m_GridService.GetRegionFlags(scopeID, regionID);
}
#endregion
public void HandleShowNeighboursCommand(string module, string[] cmdparams)
{
System.Text.StringBuilder caps = new System.Text.StringBuilder();
lock (m_LocalCache)
{
foreach (KeyValuePair<UUID, RegionCache> kvp in m_LocalCache)
{
caps.AppendFormat("*** Neighbours of {0} ({1}) ***\n", kvp.Value.RegionName, kvp.Key);
List<GridRegion> regions = kvp.Value.GetNeighbours();
foreach (GridRegion r in regions)
caps.AppendFormat(" {0} @ {1}-{2}\n", r.RegionName, Util.WorldToRegionLoc((uint)r.RegionLocX), Util.WorldToRegionLoc((uint)r.RegionLocY));
}
}
MainConsole.Instance.Output(caps.ToString());
}
}
}
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