PresenceDetector.cs

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 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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using System;
using System.Collections.Generic;
using System.Reflection;
using log4net;
using OpenMetaverse;
using OpenSim.Framework;
using OpenSim.Region.Framework.Scenes;
using OpenSim.Services.Interfaces;

namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Presence
{
    public class PresenceDetector 
    {
//        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

        private IPresenceService m_PresenceService;
        private Scene m_aScene;

        public PresenceDetector(IPresenceService presenceservice)
        {
            m_PresenceService = presenceservice;
        }

        public void AddRegion(Scene scene)
        {
            scene.EventManager.OnMakeRootAgent += OnMakeRootAgent;
            scene.EventManager.OnNewClient += OnNewClient;

            m_PresenceService.LogoutRegionAgents(scene.RegionInfo.RegionID);

            if (m_aScene == null)
                m_aScene = scene;
        }

        public void RemoveRegion(Scene scene)
        {
            scene.EventManager.OnMakeRootAgent -= OnMakeRootAgent;
            scene.EventManager.OnNewClient -= OnNewClient;

            m_PresenceService.LogoutRegionAgents(scene.RegionInfo.RegionID);
        }

        public void OnMakeRootAgent(ScenePresence sp)
        {
//            m_log.DebugFormat("[PRESENCE DETECTOR]: Detected root presence {0} in {1}", sp.UUID, sp.Scene.RegionInfo.RegionName);
            if (sp.PresenceType != PresenceType.Npc)
                m_PresenceService.ReportAgent(sp.ControllingClient.SessionId, sp.Scene.RegionInfo.RegionID);
        }

        public void OnNewClient(IClientAPI client)
        {
            client.OnConnectionClosed += OnConnectionClose;
        }

        public void OnConnectionClose(IClientAPI client)
        {
            if (client != null && client.SceneAgent != null && !client.SceneAgent.IsChildAgent)
            {
//                m_log.DebugFormat("[PRESENCE DETECTOR]: Detected client logout {0} in {1}", client.AgentId, client.Scene.RegionInfo.RegionName);
                m_PresenceService.LogoutAgent(client.SessionId);
            }
        }
    }
}