org.javasimon.callback.quantiles
Class PropertiesQuantilesCallback

java.lang.Object
  org.javasimon.callback.CallbackSkeleton
      org.javasimon.callback.quantiles.QuantilesCallback
          org.javasimon.callback.quantiles.PropertiesQuantilesCallback

All Implemented Interfaces:

Callback

public class PropertiesQuantilesCallback
extends QuantilesCallback

Callback which stores data in buckets to compute quantiles. Buckets are created from configuration stored in a Properties file. Configuration file should look like:

 # Global default values are set on root
 .min=0
 .max=60000
 .nb=5
 .type=LINEAR
 
 # For org.javasimon group: more buckets
 org.javasimon.nb=10
 
 # SlowClass is a performance bottleneck: higher upper bound
 org.javasimon.slow.SlowClass.max=300000

 # Can use Exponential buckets for some Stopwatches
 org.javasimon.special.type=EXPONENTIAL
 

Author:

gquintana

Nested Class Summary

private class	PropertiesQuantilesCallback.EnumPropertyType<E extends Enum<E>> Get enum property for Simon
private class	PropertiesQuantilesCallback.PropertyType<T> Base class for property types

Nested classes/interfaces inherited from interface org.javasimon.callback.Callback

Callback.Event

Field Summary

private PropertiesQuantilesCallback.EnumPropertyType<BucketsType>	bucketsTypeEnumPropertyType Get bucket type property for Simon
private PropertiesQuantilesCallback.PropertyType<Integer>	integerPropertyType Get integer property for Simon
private PropertiesQuantilesCallback.PropertyType<Long>	longPropertyType Get long property for Simon
private Properties	properties Properties containing configuration

Fields inherited from class org.javasimon.callback.quantiles.QuantilesCallback

ATTR_NAME_BUCKETS

Constructor Summary

PropertiesQuantilesCallback(Properties properties)
Main constructor

Method Summary

private static String	cleanString(String s) Remove space at both ends and convert empty strings to null
protected Buckets	createBuckets(Stopwatch stopwatch) Create buckets using callback attributes
private String	getProperty(Simon simon, String name) Get property for Simon

Methods inherited from class org.javasimon.callback.quantiles.QuantilesCallback

createBuckets, createLogTemplate, getBuckets, getBucketsType, getOrCreateBuckets, isLogEnabled, onSimonReset, onStopwatchAdd, onStopwatchAdd, onStopwatchSplit, onStopwatchSplit, onStopwatchStop, sampleBuckets, setLogEnabled

Methods inherited from class org.javasimon.callback.CallbackSkeleton

cleanup, initialize, onCounterDecrease, onCounterIncrease, onCounterSet, onManagerClear, onManagerMessage, onManagerWarning, onSimonCreated, onSimonDestroyed, onStopwatchStart

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

properties

private final Properties properties

Properties containing configuration

longPropertyType

private final PropertiesQuantilesCallback.PropertyType<Long> longPropertyType

Get long property for Simon

integerPropertyType

private final PropertiesQuantilesCallback.PropertyType<Integer> integerPropertyType

Get integer property for Simon

bucketsTypeEnumPropertyType

private final PropertiesQuantilesCallback.EnumPropertyType<BucketsType> bucketsTypeEnumPropertyType

Get bucket type property for Simon

Constructor Detail

PropertiesQuantilesCallback

public PropertiesQuantilesCallback(Properties properties)

Main constructor

Parameters:

properties - Properties containing configuration

Method Detail

createBuckets

protected Buckets createBuckets(Stopwatch stopwatch)

Create buckets using callback attributes

Specified by:

createBuckets in class QuantilesCallback

Parameters:

stopwatch - Target stopwatch

Returns:

Created buckets for given stopwatch

getProperty

private String getProperty(Simon simon,
                           String name)

Get property for Simon

Parameters:

simon - Simon

name - Property name

Returns:

Raw property value

cleanString

private static String cleanString(String s)

Remove space at both ends and convert empty strings to null