clockwerk-opensim-stable – 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 System;
using System.Collections.Generic;
using System.Reflection;
using System.Net;
using System.IO;
using System.Timers;
using System.Drawing;
using System.Drawing.Imaging;
using log4net;
using Mono.Addins;
using Nini.Config;
using OpenSim.Framework;
using OpenSim.Region.Framework.Interfaces;
using OpenSim.Region.Framework.Scenes;
using OpenSim.Services.Interfaces;
using OpenSim.Server.Base;
using OpenMetaverse;
using OpenMetaverse.StructuredData;
namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.MapImage
{
/// <summary>
/// </summary>
/// <remarks>
/// </remarks>
[Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "MapImageServiceModule")]
public class MapImageServiceModule : ISharedRegionModule
{
private static readonly ILog m_log =
LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private bool m_enabled = false;
private IMapImageService m_MapService;
private Dictionary<UUID, Scene> m_scenes = new Dictionary<UUID, Scene>();
private int m_refreshtime = 0;
private int m_lastrefresh = 0;
private System.Timers.Timer m_refreshTimer = new System.Timers.Timer();
#region ISharedRegionModule
public Type ReplaceableInterface { get { return null; } }
public string Name { get { return "MapImageServiceModule"; } }
public void RegionLoaded(Scene scene) { }
public void Close() { }
public void PostInitialise() { }
///<summary>
///
///</summary>
public void Initialise(IConfigSource source)
{
IConfig moduleConfig = source.Configs["Modules"];
if (moduleConfig != null)
{
string name = moduleConfig.GetString("MapImageService", "");
if (name != Name)
return;
}
IConfig config = source.Configs["MapImageService"];
if (config == null)
return;
int refreshminutes = Convert.ToInt32(config.GetString("RefreshTime"));
if (refreshminutes <= 0)
{
m_log.WarnFormat("[MAP IMAGE SERVICE MODULE]: No refresh time given in config. Module disabled.");
return;
}
m_refreshtime = refreshminutes * 60 * 1000; // convert from minutes to ms
string service = config.GetString("LocalServiceModule", string.Empty);
if (service == string.Empty)
{
m_log.WarnFormat("[MAP IMAGE SERVICE MODULE]: No service dll given in config. Unable to proceed.");
return;
}
Object[] args = new Object[] { source };
m_MapService = ServerUtils.LoadPlugin<IMapImageService>(service, args);
if (m_MapService == null)
{
m_log.WarnFormat("[MAP IMAGE SERVICE MODULE]: Unable to load LocalServiceModule from {0}. MapService module disabled. Please fix the configuration.", service);
return;
}
m_refreshTimer.Enabled = true;
m_refreshTimer.AutoReset = true;
m_refreshTimer.Interval = m_refreshtime;
m_refreshTimer.Elapsed += new ElapsedEventHandler(HandleMaptileRefresh);
m_log.InfoFormat("[MAP IMAGE SERVICE MODULE]: enabled with refresh time {0}min and service object {1}",
refreshminutes, service);
m_enabled = true;
}
///<summary>
///
///</summary>
public void AddRegion(Scene scene)
{
if (!m_enabled)
return;
// Every shared region module has to maintain an indepedent list of
// currently running regions
lock (m_scenes)
m_scenes[scene.RegionInfo.RegionID] = scene;
scene.EventManager.OnRegionReadyStatusChange += s => { if (s.Ready) UploadMapTile(s); };
}
///<summary>
///
///</summary>
public void RemoveRegion(Scene scene)
{
if (! m_enabled)
return;
lock (m_scenes)
m_scenes.Remove(scene.RegionInfo.RegionID);
}
#endregion ISharedRegionModule
///<summary>
///
///</summary>
private void HandleMaptileRefresh(object sender, EventArgs ea)
{
// this approach is a bit convoluted becase we want to wait for the
// first upload to happen on startup but after all the objects are
// loaded and initialized
if (m_lastrefresh > 0 && Util.EnvironmentTickCountSubtract(m_lastrefresh) < m_refreshtime)
return;
m_log.DebugFormat("[MAP IMAGE SERVICE MODULE]: map refresh!");
lock (m_scenes)
{
foreach (IScene scene in m_scenes.Values)
{
try
{
UploadMapTile(scene);
}
catch (Exception ex)
{
m_log.WarnFormat("[MAP IMAGE SERVICE MODULE]: something bad happened {0}", ex.Message);
}
}
}
m_lastrefresh = Util.EnvironmentTickCount();
}
///<summary>
///
///</summary>
private void UploadMapTile(IScene scene)
{
m_log.DebugFormat("[MAP IMAGE SERVICE MODULE]: upload maptile for {0}", scene.RegionInfo.RegionName);
// Create a JPG map tile and upload it to the AddMapTile API
byte[] jpgData = Utils.EmptyBytes;
IMapImageGenerator tileGenerator = scene.RequestModuleInterface<IMapImageGenerator>();
if (tileGenerator == null)
{
m_log.Warn("[MAP IMAGE SERVICE MODULE]: Cannot upload PNG map tile without an ImageGenerator");
return;
}
using (Image mapTile = tileGenerator.CreateMapTile())
{
// XXX: The MapImageModule will return a null if the user has chosen not to create map tiles and there
// is no static map tile.
if (mapTile == null)
return;
using (MemoryStream stream = new MemoryStream())
{
mapTile.Save(stream, ImageFormat.Jpeg);
jpgData = stream.ToArray();
}
}
if (jpgData == Utils.EmptyBytes)
{
m_log.WarnFormat("[MAP IMAGE SERVICE MODULE]: Tile image generation failed");
return;
}
string reason = string.Empty;
if (!m_MapService.AddMapTile((int)scene.RegionInfo.RegionLocX, (int)scene.RegionInfo.RegionLocY, jpgData, out reason))
{
m_log.DebugFormat("[MAP IMAGE SERVICE MODULE]: Unable to upload tile image for {0} at {1}-{2}: {3}",
scene.RegionInfo.RegionName, scene.RegionInfo.RegionLocX, scene.RegionInfo.RegionLocY, reason);
}
}
}
}
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