psiprobe.model.stats

Class StatsCollection

java.lang.Object

psiprobe.model.stats.StatsCollection

All Implemented Interfaces:

org.springframework.beans.factory.Aware, org.springframework.beans.factory.DisposableBean, org.springframework.beans.factory.InitializingBean, org.springframework.context.ApplicationContextAware

public class StatsCollection
extends Object
implements org.springframework.beans.factory.InitializingBean, org.springframework.beans.factory.DisposableBean, org.springframework.context.ApplicationContextAware

The Class StatsCollection.

Constructor Summary

Constructors

Constructor and Description
StatsCollection()

Method Summary

Modifier and Type	Method and Description
void	afterPropertiesSet() Reads stats data from file on disk.
void	destroy()
long	getLastValueForStat(String statName) Gets the last value for stat.
int	getMaxFiles() Gets the max files.
List<org.jfree.data.xy.XYDataItem>	getStats(String name) Gets the stats.
Map<String,List<org.jfree.data.xy.XYDataItem>>	getStatsByPrefix(String statNamePrefix) Returns series if stat name starts with the prefix.
String	getStoragePath() Gets the storage path.
String	getSwapFileName() Gets the swap file name.
boolean	isCollected(String statsName) Checks if is collected.
void	lockForUpdate() Lock for update.
List<org.jfree.data.xy.XYDataItem>	newStats(String name, int maxElements) New stats.
void	releaseLock() Release lock.
void	resetStats(String name) Reset stats.
void	serialize() Writes stats data to file on disk.
void	setApplicationContext(org.springframework.context.ApplicationContext applicationContext)
void	setMaxFiles(int maxFiles) Sets the max files.
void	setStoragePath(String storagePath) Sets the storage path.
void	setSwapFileName(String swapFileName) Sets the swap file name.

Methods inherited from class java.lang.Object

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

Constructor Detail

StatsCollection

public StatsCollection()

Method Detail

getSwapFileName

public String getSwapFileName()

Gets the swap file name.

Returns:

the swap file name

setSwapFileName

@Value(value="stats.xml")
public void setSwapFileName(String swapFileName)

Sets the swap file name.

Parameters:

swapFileName - the new swap file name

getStoragePath

public String getStoragePath()

Gets the storage path.

Returns:

the storage path

setStoragePath

public void setStoragePath(String storagePath)

Sets the storage path. The default location for the stat files is $CALALINA_BASE/work/<hostname>/<context_name>. Use this property to override it.

Parameters:

storagePath - the new storage path

isCollected

public boolean isCollected(String statsName)

Checks if is collected.

Parameters:

statsName - the stats name

Returns:

true, if is collected

getMaxFiles

public int getMaxFiles()

Gets the max files.

Returns:

the max files

setMaxFiles

public void setMaxFiles(int maxFiles)

Sets the max files.

Parameters:

maxFiles - the new max files

newStats

public List<org.jfree.data.xy.XYDataItem> newStats(String name,
                                                   int maxElements)

New stats.

Parameters:

name - the name

maxElements - the max elements

Returns:

the list

resetStats

public void resetStats(String name)

Reset stats.

Parameters:

name - the name

getStats

public List<org.jfree.data.xy.XYDataItem> getStats(String name)

Gets the stats.

Parameters:

name - the name

Returns:

the stats

getLastValueForStat

public long getLastValueForStat(String statName)

Gets the last value for stat.

Parameters:

statName - the stat name

Returns:

the last value for stat

getStatsByPrefix

public Map<String,List<org.jfree.data.xy.XYDataItem>> getStatsByPrefix(String statNamePrefix)

Returns series if stat name starts with the prefix.

Parameters:

statNamePrefix - they key under which the stats are stored

Returns:

a Map of matching stats. Map keys are stat names and map values are corresponding series.

serialize

public void serialize()
               throws InterruptedException

Writes stats data to file on disk.

Throws:

InterruptedException - if a lock cannot be obtained

lockForUpdate

public void lockForUpdate()
                   throws InterruptedException

Lock for update.

Throws:

InterruptedException - the interrupted exception

releaseLock

public void releaseLock()

Release lock.

afterPropertiesSet

public void afterPropertiesSet()

Reads stats data from file on disk.

Specified by:

afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean

destroy

public void destroy()
             throws Exception

Specified by:

destroy in interface org.springframework.beans.factory.DisposableBean

Throws:

Exception

setApplicationContext

public void setApplicationContext(org.springframework.context.ApplicationContext applicationContext)

Specified by:

setApplicationContext in interface org.springframework.context.ApplicationContextAware