org.apache.nifi.util.concurrency

Class DebugEnabledTimedLock

java.lang.Object

org.apache.nifi.util.concurrency.DebugEnabledTimedLock

All Implemented Interfaces:

DebuggableTimedLock

public class DebugEnabledTimedLock
extends Object
implements DebuggableTimedLock

Field Summary

Fields

Modifier and Type	Field and Description
private int	iterationFrequency
private Lock	lock
private Map<String,Long>	lockIterations
private Map<String,Long>	lockNanos
private long	lockTime
private org.slf4j.Logger	logger
private String	name

Constructor Summary

Constructors

Constructor and Description
DebugEnabledTimedLock(Lock lock, String name, int iterationFrequency)

Method Summary

Modifier and Type	Method and Description
void	lock()
boolean	tryLock()
boolean	tryLock(long timeout, TimeUnit timeUnit)
void	unlock(String task)

Methods inherited from class java.lang.Object

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

Field Detail

lock

private final Lock lock

logger

private final org.slf4j.Logger logger

lockTime

private long lockTime

lockIterations

private final Map<String,Long> lockIterations

lockNanos

private final Map<String,Long> lockNanos

name

private final String name

iterationFrequency

private final int iterationFrequency

Constructor Detail

DebugEnabledTimedLock

public DebugEnabledTimedLock(Lock lock,
                             String name,
                             int iterationFrequency)

Method Detail

tryLock

public boolean tryLock()

Specified by:

tryLock in interface DebuggableTimedLock

Returns:

true if lock obtained; false otherwise

tryLock

public boolean tryLock(long timeout,
                       TimeUnit timeUnit)

Specified by:

tryLock in interface DebuggableTimedLock

Parameters:

timeout - duration to wait for lock

timeUnit - unit to understand given duration

Returns:

true if lock obtained in time; false otherwise

lock

public void lock()

Specified by:

lock in interface DebuggableTimedLock

unlock

public void unlock(String task)

Specified by:

unlock in interface DebuggableTimedLock

Parameters:

task - to release the lock for