net.sf.ehcache.management.sampled
Class CacheManagerSamplerImpl

java.lang.Object
  net.sf.ehcache.management.sampled.CacheManagerSamplerImpl

All Implemented Interfaces:

CacheManagerSampler

public class CacheManagerSamplerImpl
extends Object
implements CacheManagerSampler

An implementation of CacheManagerSampler

Author:

Abhishek Sanoujam, byoukste

Constructor Summary

CacheManagerSamplerImpl(CacheManager cacheManager)
Constructor taking the backing CacheManager

Method Summary

void	clearAll() Clears the contents of all caches in the CacheManager, but without removing any caches.
String	generateActiveConfigDeclaration() generateActiveConfigDeclaration
String	generateActiveConfigDeclaration(String cacheName) generateActiveConfigDeclaration
float	getCacheAverageGetTime()
long	getCacheAverageSearchTime()
long	getCacheEvictionRate()
long	getCacheExpirationRate()
long	getCacheHitRate()
long	getCacheInMemoryHitRate()
long	getCacheInMemoryMissRate()
Map<String,long[]>	getCacheMetrics() Get a map of cache name to performance metrics (hits, misses).
long	getCacheMissRate()
String[]	getCacheNames() Gets the cache names managed by the CacheManager
long	getCacheOffHeapHitRate()
long	getCacheOffHeapMissRate()
long	getCacheOnDiskHitRate()
long	getCacheOnDiskMissRate()
long	getCachePutRate()
long	getCacheRemoveRate()
long	getCacheSearchRate()
long	getCacheUpdateRate()
String	getClusterUUID() Gets the cluster uuid if applicable.
boolean	getHasWriteBehindWriter() Returns whether any caches are configured for write-behind
long	getMaxBytesLocalDisk() Maximum number of bytes of entries in the disk stores of all caches that did not declare their own max size.
String	getMaxBytesLocalDiskAsString()
long	getMaxBytesLocalHeap() Maximum number of bytes of entries in the heap memory stores of all caches that did not declare their own max size.
String	getMaxBytesLocalHeapAsString()
long	getMaxBytesLocalOffHeap() Maximum number of bytes of entries in the off-heap stores of all caches that did not declare their own max size.
String	getMaxBytesLocalOffHeapAsString()
String	getName() Gets the actual name of the cache manager.
boolean	getSearchable()
String	getStatus() Gets the status attribute of the Ehcache
boolean	getTransactional() Are any of the caches transactional
long	getTransactionCommitRate()
long	getTransactionCommittedCount() Get the committed transactions count
long	getTransactionRollbackRate()
long	getTransactionRolledBackCount() Get the rolled back transactions count
long	getTransactionTimedOutCount() Get the timed out transactions count.
int	getWriterMaxQueueSize() Maximum elements that can be queued for processing by the write-behind writer
long	getWriterQueueLength() Returns the total length of all write-behind queues across all caches
boolean	isEnabled() Returns if each cache is enabled.
void	setEnabled(boolean enabled) Enables/disables each cache contained by this CacheManager
void	setMaxBytesLocalDisk(long maxBytes)
void	setMaxBytesLocalDiskAsString(String maxBytes)
void	setMaxBytesLocalHeap(long maxBytes)
void	setMaxBytesLocalHeapAsString(String maxBytes)
void	shutdown() Shuts down the CacheManager.

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheManagerSamplerImpl

public CacheManagerSamplerImpl(CacheManager cacheManager)

Constructor taking the backing CacheManager

Parameters:

cacheManager - to wrap

Method Detail

clearAll

public void clearAll()

Clears the contents of all caches in the CacheManager, but without removing any caches.

This method is not synchronized. It only guarantees to clear those elements in a cache at the time that the Ehcache.removeAll() mehod on each cache is called.

Specified by:

clearAll in interface CacheManagerSampler

getCacheNames

public String[] getCacheNames()
                       throws IllegalStateException

Gets the cache names managed by the CacheManager

Specified by:

getCacheNames in interface CacheManagerSampler

Throws:

IllegalStateException

getStatus

public String getStatus()

Gets the status attribute of the Ehcache

Specified by:

getStatus in interface CacheManagerSampler

Returns:

The status value, as a String from the Status enum class

shutdown

public void shutdown()

Shuts down the CacheManager.

If the shutdown occurs on the singleton, then the singleton is removed, so that if a singleton access method is called, a new singleton will be created.

Specified by:

shutdown in interface CacheManagerSampler

getCacheMetrics

public Map<String,long[]> getCacheMetrics()

Get a map of cache name to performance metrics (hits, misses).

Specified by:

getCacheMetrics in interface CacheManagerSampler

Returns:

a map of cache metrics

getCacheHitRate

public long getCacheHitRate()

Specified by:

getCacheHitRate in interface CacheManagerSampler

Returns:

aggregate hit rate

getCacheInMemoryHitRate

public long getCacheInMemoryHitRate()

Specified by:

getCacheInMemoryHitRate in interface CacheManagerSampler

Returns:

aggregate in-memory hit rate

getCacheOffHeapHitRate

public long getCacheOffHeapHitRate()

Specified by:

getCacheOffHeapHitRate in interface CacheManagerSampler

Returns:

aggregate off-heap hit rate

getCacheOnDiskHitRate

public long getCacheOnDiskHitRate()

Specified by:

getCacheOnDiskHitRate in interface CacheManagerSampler

Returns:

aggregate on-disk hit rate

getCacheMissRate

public long getCacheMissRate()

Specified by:

getCacheMissRate in interface CacheManagerSampler

Returns:

aggregate miss rate

getCacheInMemoryMissRate

public long getCacheInMemoryMissRate()

Specified by:

getCacheInMemoryMissRate in interface CacheManagerSampler

Returns:

aggregate in-memory miss rate

getCacheOffHeapMissRate

public long getCacheOffHeapMissRate()

Specified by:

getCacheOffHeapMissRate in interface CacheManagerSampler

Returns:

aggregate off-heap miss rate

getCacheOnDiskMissRate

public long getCacheOnDiskMissRate()

Specified by:

getCacheOnDiskMissRate in interface CacheManagerSampler

Returns:

aggregate on-disk miss rate

getCachePutRate

public long getCachePutRate()

Specified by:

getCachePutRate in interface CacheManagerSampler

Returns:

aggregate put rate

getCacheUpdateRate

public long getCacheUpdateRate()

Specified by:

getCacheUpdateRate in interface CacheManagerSampler

Returns:

aggregate update rate

getCacheRemoveRate

public long getCacheRemoveRate()

Specified by:

getCacheRemoveRate in interface CacheManagerSampler

Returns:

aggregate remove rate

getCacheEvictionRate

public long getCacheEvictionRate()

Specified by:

getCacheEvictionRate in interface CacheManagerSampler

Returns:

aggregate eviction rate

getCacheExpirationRate

public long getCacheExpirationRate()

Specified by:

getCacheExpirationRate in interface CacheManagerSampler

Returns:

aggregate expiration rate

getCacheAverageGetTime

public float getCacheAverageGetTime()

Specified by:

getCacheAverageGetTime in interface CacheManagerSampler

Returns:

aggregate average get time (ms.)

getCacheSearchRate

public long getCacheSearchRate()

Specified by:

getCacheSearchRate in interface CacheManagerSampler

Returns:

aggregate search rate

getCacheAverageSearchTime

public long getCacheAverageSearchTime()

Specified by:

getCacheAverageSearchTime in interface CacheManagerSampler

Returns:

aggregate search time

getHasWriteBehindWriter

public boolean getHasWriteBehindWriter()

Returns whether any caches are configured for write-behind

Specified by:

getHasWriteBehindWriter in interface CacheManagerSampler

getWriterQueueLength

public long getWriterQueueLength()

Returns the total length of all write-behind queues across all caches

Specified by:

getWriterQueueLength in interface CacheManagerSampler

Returns:

aggregate writer-behind queue length

getWriterMaxQueueSize

public int getWriterMaxQueueSize()

Maximum elements that can be queued for processing by the write-behind writer

Specified by:

getWriterMaxQueueSize in interface CacheManagerSampler

Returns:

aggregate of the maximum elements that can be waiting to be processed by the write-behind writer across all caches

getMaxBytesLocalDisk

public long getMaxBytesLocalDisk()

Maximum number of bytes of entries in the disk stores of all caches that did not declare their own max size.

Specified by:

getMaxBytesLocalDisk in interface CacheManagerSampler

Returns:

maximum number of bytes in the disk stores of all caches that did not declare their own max size.

getMaxBytesLocalDiskAsString

public String getMaxBytesLocalDiskAsString()

Specified by:

getMaxBytesLocalDiskAsString in interface CacheManagerSampler

Returns:

Original input for maxBytesLocalDisk

setMaxBytesLocalDisk

public void setMaxBytesLocalDisk(long maxBytes)

Specified by:

setMaxBytesLocalDisk in interface CacheManagerSampler

setMaxBytesLocalDiskAsString

public void setMaxBytesLocalDiskAsString(String maxBytes)

Specified by:

setMaxBytesLocalDiskAsString in interface CacheManagerSampler

getMaxBytesLocalHeap

public long getMaxBytesLocalHeap()

Maximum number of bytes of entries in the heap memory stores of all caches that did not declare their own max size.

Specified by:

getMaxBytesLocalHeap in interface CacheManagerSampler

Returns:

maximum number of bytes in the heap memory stores of all caches that did not declare their own max size.

getMaxBytesLocalHeapAsString

public String getMaxBytesLocalHeapAsString()

Specified by:

getMaxBytesLocalHeapAsString in interface CacheManagerSampler

Returns:

Original input for maxBytesLocalHeap

setMaxBytesLocalHeap

public void setMaxBytesLocalHeap(long maxBytes)

Specified by:

setMaxBytesLocalHeap in interface CacheManagerSampler

setMaxBytesLocalHeapAsString

public void setMaxBytesLocalHeapAsString(String maxBytes)

Specified by:

setMaxBytesLocalHeapAsString in interface CacheManagerSampler

getMaxBytesLocalOffHeap

public long getMaxBytesLocalOffHeap()

Maximum number of bytes of entries in the off-heap stores of all caches that did not declare their own max size.

Specified by:

getMaxBytesLocalOffHeap in interface CacheManagerSampler

Returns:

maximum number of bytes in the off-heap stores of all caches that did not declare their own max size.

getMaxBytesLocalOffHeapAsString

public String getMaxBytesLocalOffHeapAsString()

Specified by:

getMaxBytesLocalOffHeapAsString in interface CacheManagerSampler

Returns:

Original input for maxBytesLocalOffHeap

getName

public String getName()

Gets the actual name of the cache manager.

Specified by:

getName in interface CacheManagerSampler

getClusterUUID

public String getClusterUUID()

Gets the cluster uuid if applicable.

Specified by:

getClusterUUID in interface CacheManagerSampler

Returns:

the cluster uuid

generateActiveConfigDeclaration

public String generateActiveConfigDeclaration()

generateActiveConfigDeclaration

Specified by:

generateActiveConfigDeclaration in interface CacheManagerSampler

Returns:

CacheManager configuration as String

generateActiveConfigDeclaration

public String generateActiveConfigDeclaration(String cacheName)

generateActiveConfigDeclaration

Specified by:

generateActiveConfigDeclaration in interface CacheManagerSampler

Returns:

Cache configuration as String

getTransactional

public boolean getTransactional()

Are any of the caches transactional

Specified by:

getTransactional in interface CacheManagerSampler

See Also:

CacheConfiguration.TransactionalMode

getSearchable

public boolean getSearchable()

Specified by:

getSearchable in interface CacheManagerSampler

Returns:

if any contained caches are configured for search

getTransactionCommittedCount

public long getTransactionCommittedCount()

Get the committed transactions count

Specified by:

getTransactionCommittedCount in interface CacheManagerSampler

Returns:

the committed transactions count

getTransactionCommitRate

public long getTransactionCommitRate()

Specified by:

getTransactionCommitRate in interface CacheManagerSampler

Returns:

aggregate Xa commit rate

getTransactionRolledBackCount

public long getTransactionRolledBackCount()

Get the rolled back transactions count

Specified by:

getTransactionRolledBackCount in interface CacheManagerSampler

Returns:

the rolled back transactions count

getTransactionRollbackRate

public long getTransactionRollbackRate()

Specified by:

getTransactionRollbackRate in interface CacheManagerSampler

Returns:

aggregate Xa rollback rate

getTransactionTimedOutCount

public long getTransactionTimedOutCount()

Get the timed out transactions count. Note that only transactions which failed to commit due to a timeout are taken into account

Specified by:

getTransactionTimedOutCount in interface CacheManagerSampler

Returns:

the timed out transactions count

isEnabled

public boolean isEnabled()
                  throws CacheException

Returns if each cache is enabled.

Specified by:

isEnabled in interface CacheManagerSampler

Returns:

boolean indicating that each cache is enabled

Throws:

CacheException

setEnabled

public void setEnabled(boolean enabled)

Enables/disables each cache contained by this CacheManager

Specified by:

setEnabled in interface CacheManagerSampler