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Add sync statistics collector class

dsg
Robert Adams 2011-03-10 14:05:59 -08:00
parent cc2a679121
commit a1fa5c28c3
1 changed files with 162 additions and 0 deletions
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162
OpenSim/Region/CoreModules/RegionSync/RegionSyncModule/SymmetricSync/SyncStatisticCollector.cs Executable file
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/* Copyright 2011 (c) Intel Corporation
* 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.
* * The name of the copyright holder may not 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.Text;
using System.Timers;
namespace OpenSim.Region.CoreModules.RegionSync.RegionSyncModule
{
public interface ISyncStatistics
{
// return an identifier for this statistics source
string StatisticIdentifier();
// a line of comma separated values
string StatisticLine(bool clearFlag);
// a line of comma separated field descriptions (describes what StatisticLine returns)
string StatisticTitle();
}
public class SyncStatisticCollector
{
public static bool LogEnabled = false;
public static string LogDirectory = ".";
public static int LogInterval = 5000;
public static int LogMaxFileTimeMin = 5; // 5 minutes
public static string LogFileHeader = "stats-";
private static List<ISyncStatistics> s_staters = new List<ISyncStatistics>();
private static object s_statersLock = new object();
private static Timer s_timer = null;
static SyncStatisticCollector()
{
}
public SyncStatisticCollector()
{
}
/// <summary>
/// Any implementor of ISyncStatistics will call Register to put themselves in
/// the list of routines to collect statistics from. This will run periodically
/// and suck statistics from the registered routines.
/// </summary>
/// <param name="stat"></param>
public static void Register(ISyncStatistics stat)
{
if (!LogEnabled) return;
lock (SyncStatisticCollector.s_statersLock)
{
// set up logging timer
if (SyncStatisticCollector.s_timer == null)
{
SyncStatisticCollector.s_timer = new Timer();
SyncStatisticCollector.s_timer.Interval = LogInterval;
SyncStatisticCollector.s_timer.Enabled = true;
SyncStatisticCollector.s_timer.Elapsed += Tick;
}
SyncStatisticCollector.s_staters.Add(stat);
}
return;
}
public static void Close()
{
lock (SyncStatisticCollector.s_statersLock)
{
SyncStatisticCollector.LogEnabled = false;
if (SyncStatisticCollector.s_timer != null)
{
SyncStatisticCollector.s_timer.Enabled = false;
SyncStatisticCollector.s_timer.Dispose();
SyncStatisticCollector.s_timer = null;
}
if (SyncStatisticCollector.LogFile != null)
{
SyncStatisticCollector.LogFile.Close();
SyncStatisticCollector.LogFile.Dispose();
SyncStatisticCollector.LogFile = null;
}
}
}
private static void Tick(object sender, EventArgs e)
{
if (!LogEnabled) return;
lock (SyncStatisticCollector.s_statersLock)
{
foreach (ISyncStatistics iss in s_staters)
{
LogWriter(iss.StatisticIdentifier() + "," + iss.StatisticLine(true));
}
}
return;
}
private static DateTime LogStartTime;
private static System.IO.TextWriter LogFile = null;
private static void LogWriter(string line)
{
try
{
DateTime now = DateTime.Now;
if (LogFile == null || (now > (LogStartTime + new TimeSpan(0, LogMaxFileTimeMin, 0))))
{
if (LogFile != null)
{
LogFile.Close();
LogFile.Dispose();
LogFile = null;
}
// First log file or time has expired, start writing to a new log file
LogStartTime = now;
string path = (LogDirectory.Length > 0 ? LogDirectory
+ System.IO.Path.DirectorySeparatorChar.ToString() : "")
+ String.Format("{0}{1}.log", LogFileHeader, now.ToString("yyyyMMddHHmmss"));
LogFile = new StreamWriter(File.Open(path, FileMode.Append, FileAccess.Write));
}
if (LogFile != null)
{
StringBuilder buff = new StringBuilder();
// buff.Append(now.ToString("yyyyMMddHHmmssfff"));
buff.Append(now.ToString("yyyyMMddHHmmss"));
buff.Append(",");
buff.Append(line);
buff.Append("\r\n");
LogFile.Write(buff.ToString());
}
}
catch (Exception e)
{
// m_log.ErrorFormat("{0}: FAILURE WRITING TO LOGFILE: {1}", LogHeader, e);
LogEnabled = false;
}
return;
}
}
}