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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.Reflection;
using log4net;
using Mono.Addins;
using Nini.Config;
using OpenMetaverse;
using OpenSim.Framework;
using OpenSim.Region.CoreModules.Framework.Monitoring.Alerts;
using OpenSim.Region.CoreModules.Framework.Monitoring.Monitors;
using OpenSim.Region.Framework.Interfaces;
using OpenSim.Region.Framework.Scenes;
namespace OpenSim.Region.CoreModules.Framework.Monitoring
{
[Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule")]
public class MonitorModule : INonSharedRegionModule
{
private Scene m_scene;
private readonly List<IMonitor> m_monitors = new List<IMonitor>();
private readonly List<IAlert> m_alerts = new List<IAlert>();
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
public void DebugMonitors(string module, string[] args)
{
foreach (IMonitor monitor in m_monitors)
{
m_log.Info("[MonitorModule] " + m_scene.RegionInfo.RegionName + " reports " + monitor.GetName() + " = " + monitor.GetFriendlyValue());
}
}
public void TestAlerts()
{
foreach (IAlert alert in m_alerts)
{
alert.Test();
}
}
#region Implementation of INonSharedRegionModule
public void Initialise(IConfigSource source)
{
}
public Type ReplaceableInterface
{
get { return null; }
}
public void AddRegion(Scene scene)
{
m_scene = scene;
m_scene.AddCommand(this, "monitor report",
"monitor report",
"Returns a variety of statistics about the current region and/or simulator",
DebugMonitors);
MainServer.Instance.AddHTTPHandler("/monitorstats/" + m_scene.RegionInfo.RegionID + "/", StatsPage);
}
public void RegionLoaded(Scene scene)
{
m_monitors.Add(new AgentCountMonitor(m_scene));
m_monitors.Add(new ChildAgentCountMonitor(m_scene));
m_monitors.Add(new GCMemoryMonitor());
m_monitors.Add(new ObjectCountMonitor(m_scene));
m_monitors.Add(new PhysicsFrameMonitor(m_scene));
m_monitors.Add(new PhysicsUpdateFrameMonitor(m_scene));
m_monitors.Add(new PWSMemoryMonitor());
m_monitors.Add(new ThreadCountMonitor());
m_monitors.Add(new TotalFrameMonitor(m_scene));
m_monitors.Add(new EventFrameMonitor(m_scene));
m_monitors.Add(new LandFrameMonitor(m_scene));
m_monitors.Add(new LastFrameTimeMonitor(m_scene));
m_alerts.Add(new DeadlockAlert(m_monitors.Find(x => x is LastFrameTimeMonitor) as LastFrameTimeMonitor));
foreach (IAlert alert in m_alerts)
{
alert.OnTriggerAlert += OnTriggerAlert;
}
}
public void RemoveRegion(Scene scene)
{
MainServer.Instance.RemoveHTTPHandler("", "/monitorstats/" + m_scene.RegionInfo.RegionID + "/");
m_monitors.Clear();
foreach (IAlert alert in m_alerts)
{
alert.OnTriggerAlert -= OnTriggerAlert;
}
m_alerts.Clear();
}
public void Close()
{
}
public string Name
{
get { return "Region Health Monitoring Module"; }
}
public Hashtable StatsPage(Hashtable request)
{
// If request was for a specific monitor
// eg url/?monitor=Monitor.Name
if (request.ContainsKey("monitor"))
{
string monID = (string) request["monitor"];
foreach (IMonitor monitor in m_monitors)
{
string elemName = monitor.ToString();
if (elemName.StartsWith(monitor.GetType().Namespace))
elemName = elemName.Substring(monitor.GetType().Namespace.Length + 1);
if (elemName == monID || monitor.ToString() == monID)
{
Hashtable ereply3 = new Hashtable();
ereply3["int_response_code"] = 404; // 200 OK
ereply3["str_response_string"] = monitor.GetValue().ToString();
ereply3["content_type"] = "text/plain";
return ereply3;
}
}
// No monitor with that name
Hashtable ereply2 = new Hashtable();
ereply2["int_response_code"] = 404; // 200 OK
ereply2["str_response_string"] = "No such monitor";
ereply2["content_type"] = "text/plain";
return ereply2;
}
string xml = "<data>";
foreach (IMonitor monitor in m_monitors)
{
string elemName = monitor.ToString();
if (elemName.StartsWith(monitor.GetType().Namespace))
elemName = elemName.Substring(monitor.GetType().Namespace.Length + 1);
xml += "<" + elemName + ">" + monitor.GetValue() + "</" + elemName + ">";
}
xml += "</data>";
Hashtable ereply = new Hashtable();
ereply["int_response_code"] = 200; // 200 OK
ereply["str_response_string"] = xml;
ereply["content_type"] = "text/xml";
return ereply;
}
void OnTriggerAlert(System.Type reporter, string reason, bool fatal)
{
m_log.Error("[Monitor] " + reporter.Name + " for " + m_scene.RegionInfo.RegionName + " reports " + reason + " (Fatal: " + fatal + ")");
}
#endregion
}
}
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