Class ProcessFileLock

java.lang.Object

org.aksw.commons.lock.LockBase

org.aksw.commons.lock.LockBaseRepeat

org.aksw.commons.lock.ProcessFileLock

All Implemented Interfaces:

Lock

public class ProcessFileLock
extends LockBaseRepeat

Field Summary

Fields

Modifier and Type	Field	Description
protected LockFromFile	lock
protected Thread	thread

Constructor Summary

Constructors

Constructor	Description
ProcessFileLock(Path path)

Method Summary

Modifier and Type	Method	Description
void	lockInterruptibly()
Condition	newCondition()
protected boolean	singleLockAttempt()	First, attempt to create the process lock file.
void	unlock()

Methods inherited from class LockBaseRepeat

tryLock, tryLockActual

Methods inherited from class LockBase

lock, tryLock

Methods inherited from class Object

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

Field Details

lock

protected LockFromFile lock

thread

protected transient Thread thread

Constructor Details

ProcessFileLock

public ProcessFileLock(Path path)

Method Details

singleLockAttempt

protected boolean singleLockAttempt()
                             throws InterruptedException

First, attempt to create the process lock file. If the manager already owns it then this step succeeds immediately without further waiting. Afterwards, attempt to get the thread lock

Specified by:

singleLockAttempt in class LockBaseRepeat

Throws:

InterruptedException

unlock

public void unlock()

lockInterruptibly

public void lockInterruptibly()
                       throws InterruptedException

Specified by:

lockInterruptibly in interface Lock

Overrides:

lockInterruptibly in class LockBase

Throws:

InterruptedException

newCondition

public Condition newCondition()

Specified by:

newCondition in interface Lock

Overrides:

newCondition in class LockBase