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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.Linq;
using System.Text;
using OpenMetaverse.StructuredData;
namespace OpenSim.Framework.Monitoring
{
// A statistic that wraps a counter.
// Built this way mostly so histograms and history can be created.
public class CounterStat : Stat
{
private SortedDictionary<string, EventHistogram> m_histograms;
private object counterLock = new object();
public CounterStat(
string shortName,
string name,
string description,
string unitName,
string category,
string container,
StatVerbosity verbosity)
: base(shortName, name, description, unitName, category, container, StatType.Push, null, verbosity)
{
m_histograms = new SortedDictionary<string, EventHistogram>();
}
// Histograms are presumably added at intialization time and the list does not change thereafter.
// Thus no locking of the histogram list.
public void AddHistogram(string histoName, EventHistogram histo)
{
m_histograms.Add(histoName, histo);
}
public delegate void ProcessHistogram(string name, EventHistogram histo);
public void ForEachHistogram(ProcessHistogram process)
{
foreach (KeyValuePair<string, EventHistogram> kvp in m_histograms)
{
process(kvp.Key, kvp.Value);
}
}
public void Event()
{
this.Event(1);
}
// Count the underlying counter.
public void Event(int cnt)
{
lock (counterLock)
{
base.Value += cnt;
foreach (EventHistogram histo in m_histograms.Values)
{
histo.Event(cnt);
}
}
}
// CounterStat is a basic stat plus histograms
public override OSDMap ToOSDMap()
{
// Get the foundational instance
OSDMap map = base.ToOSDMap();
map["StatType"] = "CounterStat";
// If there are any histograms, add a new field that is an array of histograms as OSDMaps
if (m_histograms.Count > 0)
{
lock (counterLock)
{
if (m_histograms.Count > 0)
{
OSDArray histos = new OSDArray();
foreach (EventHistogram histo in m_histograms.Values)
{
histos.Add(histo.GetHistogramAsOSDMap());
}
map.Add("Histograms", histos);
}
}
}
return map;
}
}
}
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