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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.IO;
using System.Reflection;
using System.Text;
using System.Timers;
using log4net;
namespace OpenSim.Framework.Monitoring
{
/// <summary>
/// Provides a means to continuously log stats for debugging purposes.
/// </summary>
public static class StatsLogger
{
private static readonly ILog m_statsLog = LogManager.GetLogger("special.StatsLogger");
private static Timer m_loggingTimer;
private static int m_statsLogIntervalMs = 5000;
public static void RegisterConsoleCommands(ICommandConsole console)
{
console.Commands.AddCommand(
"General",
false,
"stats record",
"stats record start|stop",
"Control whether stats are being regularly recorded to a separate file.",
"For debug purposes. Experimental.",
HandleStatsRecordCommand);
console.Commands.AddCommand(
"General",
false,
"stats save",
"stats save <path>",
"Save stats snapshot to a file. If the file already exists, then the report is appended.",
"For debug purposes. Experimental.",
HandleStatsSaveCommand);
}
public static void HandleStatsRecordCommand(string module, string[] cmd)
{
ICommandConsole con = MainConsole.Instance;
if (cmd.Length != 3)
{
con.Output("Usage: stats record start|stop");
return;
}
if (cmd[2] == "start")
{
Start();
con.OutputFormat("Now recording all stats to file every {0}ms", m_statsLogIntervalMs);
}
else if (cmd[2] == "stop")
{
Stop();
con.Output("Stopped recording stats to file.");
}
}
public static void HandleStatsSaveCommand(string module, string[] cmd)
{
ICommandConsole con = MainConsole.Instance;
if (cmd.Length != 3)
{
con.Output("Usage: stats save <path>");
return;
}
string path = cmd[2];
using (StreamWriter sw = new StreamWriter(path, true))
{
foreach (string line in GetReport())
sw.WriteLine(line);
}
MainConsole.Instance.OutputFormat("Stats saved to file {0}", path);
}
public static void Start()
{
if (m_loggingTimer != null)
Stop();
m_loggingTimer = new Timer(m_statsLogIntervalMs);
m_loggingTimer.AutoReset = false;
m_loggingTimer.Elapsed += Log;
m_loggingTimer.Start();
}
public static void Stop()
{
if (m_loggingTimer != null)
{
m_loggingTimer.Stop();
}
}
private static void Log(object sender, ElapsedEventArgs e)
{
foreach (string line in GetReport())
m_statsLog.Info(line);
m_loggingTimer.Start();
}
private static List<string> GetReport()
{
List<string> lines = new List<string>();
lines.Add(string.Format("*** STATS REPORT AT {0} ***", DateTime.Now));
foreach (string report in StatsManager.GetAllStatsReports())
lines.Add(report);
return lines;
}
}
}
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