org.bonitasoft.engine.lock.impl

Class MemoryLockService

java.lang.Object

org.bonitasoft.engine.lock.impl.MemoryLockService

All Implemented Interfaces:

LockService

public class MemoryLockService
extends Object
implements LockService

This service must be configured as a singleton.

Author:

Elias Ricken de Medeiros, Baptiste Mesta

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	debugEnabled
protected int	lockTimeout
protected TechnicalLoggerService	logger
protected static String	SEPARATOR

Constructor Summary

Constructors

Constructor and Description
MemoryLockService(TechnicalLoggerService logger, int lockTimeout, int lockPoolSize)

Method Summary

Modifier and Type	Method and Description
protected StringBuilder	getDetailsOnLock(long objectToLockId, String objectType, long tenantId)
protected ReentrantLock	getLockAndPutItInMap(String key)
protected ReentrantLock	getLockFromKey(String key)
protected BonitaLock	internalTryLock(long objectToLockId, String objectType, long timeout, TimeUnit timeUnit, long tenantId)
BonitaLock	lock(long objectToLockId, String objectType, long tenantId) Acquire the lock for the object having type and id in parameters This method wait for the lock to be available
protected ReentrantLock	removeLockFromMapIfNotUsed(String key)
BonitaLock	tryLock(long objectToLockId, String objectType, long timeout, TimeUnit timeUnit, long tenantId) Acquire the lock for the object having type and id in parameters waiting maximum timeout This method wait for the lock to be available.
void	unlock(BonitaLock bonitaLock, long tenantId)

Methods inherited from class java.lang.Object

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

Field Detail

SEPARATOR

protected static final String SEPARATOR

See Also:

Constant Field Values

logger

protected final TechnicalLoggerService logger

lockTimeout

protected final int lockTimeout

debugEnabled

protected final boolean debugEnabled

Constructor Detail

MemoryLockService

public MemoryLockService(TechnicalLoggerService logger,
                         int lockTimeout,
                         int lockPoolSize)

Parameters:

lockTimeout - timeout to obtain a lock (in seconds)

lockPoolSize - the size of the lock pool

Method Detail

getLockAndPutItInMap

protected ReentrantLock getLockAndPutItInMap(String key)

removeLockFromMapIfNotUsed

protected ReentrantLock removeLockFromMapIfNotUsed(String key)

unlock

public void unlock(BonitaLock bonitaLock,
                   long tenantId)

Specified by:

unlock in interface LockService

tryLock

public BonitaLock tryLock(long objectToLockId,
                          String objectType,
                          long timeout,
                          TimeUnit timeUnit,
                          long tenantId)

Description copied from interface: LockService

Acquire the lock for the object having type and id in parameters waiting maximum timeout
This method wait for the lock to be available. If it becomes available before the timeout expires the returns the obtained lock, else returns null

Specified by:

tryLock in interface LockService

Returns:

the obtained lock if it has been acquired before the timeout expires or null if the timeout has expired.

internalTryLock

protected BonitaLock internalTryLock(long objectToLockId,
                                     String objectType,
                                     long timeout,
                                     TimeUnit timeUnit,
                                     long tenantId)

lock

public BonitaLock lock(long objectToLockId,
                       String objectType,
                       long tenantId)
                throws SLockException

Description copied from interface: LockService

Acquire the lock for the object having type and id in parameters
This method wait for the lock to be available

Specified by:

lock in interface LockService

tenantId - TODO

Returns:

the lock

Throws:

SLockException - when we were unable to lock due to an unexpected error

getDetailsOnLock

protected StringBuilder getDetailsOnLock(long objectToLockId,
                                         String objectType,
                                         long tenantId)

getLockFromKey

protected ReentrantLock getLockFromKey(String key)