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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;
namespace OpenSim.Framework.Monitoring
{
/// <summary>
/// Singleton used to provide access to statistics reporters
/// </summary>
public class StatsManager
{
/// <summary>
/// Registered stats.
/// </summary>
/// <remarks>
/// Do not add or remove from this dictionary.
/// </remarks>
public static Dictionary<string, Stat> RegisteredStats = new Dictionary<string, Stat>();
private static AssetStatsCollector assetStats;
private static UserStatsCollector userStats;
private static SimExtraStatsCollector simExtraStats = new SimExtraStatsCollector();
public static AssetStatsCollector AssetStats { get { return assetStats; } }
public static UserStatsCollector UserStats { get { return userStats; } }
public static SimExtraStatsCollector SimExtraStats { get { return simExtraStats; } }
/// <summary>
/// Start collecting statistics related to assets.
/// Should only be called once.
/// </summary>
public static AssetStatsCollector StartCollectingAssetStats()
{
assetStats = new AssetStatsCollector();
return assetStats;
}
/// <summary>
/// Start collecting statistics related to users.
/// Should only be called once.
/// </summary>
public static UserStatsCollector StartCollectingUserStats()
{
userStats = new UserStatsCollector();
return userStats;
}
public static bool RegisterStat(Stat stat)
{
lock (RegisteredStats)
{
if (RegisteredStats.ContainsKey(stat.UniqueName))
{
// XXX: For now just return false. This is to avoid problems in regression tests where all tests
// in a class are run in the same instance of the VM.
return false;
// throw new Exception(
// "StatsManager already contains stat with ShortName {0} in Category {1}", stat.ShortName, stat.Category);
}
// We take a replace-on-write approach here so that we don't need to generate a new Dictionary
Dictionary<string, Stat> newRegisteredStats = new Dictionary<string, Stat>(RegisteredStats);
newRegisteredStats[stat.UniqueName] = stat;
RegisteredStats = newRegisteredStats;
}
return true;
}
public static bool DeregisterStat(Stat stat)
{
lock (RegisteredStats)
{
if (!RegisteredStats.ContainsKey(stat.UniqueName))
return false;
Dictionary<string, Stat> newRegisteredStats = new Dictionary<string, Stat>(RegisteredStats);
newRegisteredStats.Remove(stat.UniqueName);
RegisteredStats = newRegisteredStats;
return true;
}
}
}
/// <summary>
/// Verbosity of stat.
/// </summary>
/// <remarks>
/// Info will always be displayed.
/// </remarks>
public enum StatVerbosity
{
Debug,
Info
}
/// <summary>
/// Holds individual static details
/// </summary>
public class Stat
{
/// <summary>
/// Unique stat name used for indexing. Each ShortName in a Category must be unique.
/// </summary>
public string UniqueName { get; private set; }
/// <summary>
/// Category of this stat (e.g. cache, scene, etc).
/// </summary>
public string Category { get; private set; }
/// <summary>
/// Containing name for this stat.
/// FIXME: In the case of a scene, this is currently the scene name (though this leaves
/// us with a to-be-resolved problem of non-unique region names).
/// </summary>
/// <value>
/// The container.
/// </value>
public string Container { get; private set; }
public StatVerbosity Verbosity { get; private set; }
public string ShortName { get; private set; }
public string Name { get; private set; }
public string Description { get; private set; }
public string UnitName { get; private set; }
public double Value { get; set; }
public Stat(
string shortName, string name, string unitName, string category, string container, StatVerbosity verbosity, string description)
{
ShortName = shortName;
Name = name;
UnitName = unitName;
Category = category;
Container = container;
Verbosity = verbosity;
Description = description;
UniqueName = GenUniqueName(Container, Category, ShortName);
}
public static string GenUniqueName(string container, string category, string shortName)
{
return string.Format("{0}+{1}+{2}", container, category, shortName);
}
}
}
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