Package org.nuxeo.ecm.core.work

Class MemoryBlockingQueue

java.lang.Object

java.util.AbstractCollection<Runnable>

java.util.AbstractQueue<Runnable>

org.nuxeo.ecm.core.work.NuxeoBlockingQueue

org.nuxeo.ecm.core.work.MemoryBlockingQueue

All Implemented Interfaces:

Iterable<Runnable>, Collection<Runnable>, BlockingQueue<Runnable>, Queue<Runnable>

public class MemoryBlockingQueue
extends NuxeoBlockingQueue

Memory-based BlockingQueue.

In addition, this implementation also keeps a set of Work ids in the queue when the queue elements are WorkHolders.

Field Summary

Fields

Modifier and Type	Field	Description
protected final BlockingQueue<Runnable>	queue
protected final Set<String>	runningWorks
protected final Set<String>	scheduledWorks
protected final Map<String,Work>	works

Fields inherited from class org.nuxeo.ecm.core.work.NuxeoBlockingQueue

activation, activationLock, active, queueId, queuing

Constructor Summary

Constructors

Constructor	Description
MemoryBlockingQueue(String id, MemoryWorkQueuing queuing, int capacity)	Creates a BlockingQueue with a maximum capacity.

Method Summary

Modifier and Type	Method	Description
int	getQueueSize()	Gets the size of the queue.
protected WorkQueueMetrics	metrics()
Runnable	poll(long timeout, TimeUnit unit)
Runnable	pollElement()	Retrieves and removes an element from the queue, or returns null if the queue is empty.
void	putElement(Runnable r)	Adds an element into this queue, waiting if necessary for space to become available.
Runnable	take()

Methods inherited from class org.nuxeo.ecm.core.work.NuxeoBlockingQueue

awaitActivation, contains, drainTo, drainTo, iterator, offer, offer, peek, poll, put, remainingCapacity, setActive, size, timeUntil

Methods inherited from class java.util.AbstractQueue

add, addAll, clear, element, remove

Methods inherited from class java.util.AbstractCollection

containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.concurrent.BlockingQueue

add, remove

Methods inherited from interface java.util.Collection

addAll, clear, containsAll, equals, hashCode, isEmpty, parallelStream, removeAll, removeIf, retainAll, spliterator, stream, toArray, toArray, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.Queue

element, remove

Field Details

queue

protected final BlockingQueue<Runnable> queue

works

protected final Map<String,Work> works

scheduledWorks

protected final Set<String> scheduledWorks

runningWorks

protected final Set<String> runningWorks

Constructor Details

MemoryBlockingQueue

public MemoryBlockingQueue(String id,
 MemoryWorkQueuing queuing,
 int capacity)

Creates a BlockingQueue with a maximum capacity.

If the capacity is -1 then this is treated as a regular unbounded LinkedBlockingQueue.

Parameters:

capacity - the capacity, or -1 for unbounded

Method Details

metrics

protected WorkQueueMetrics metrics()

Specified by:

metrics in class NuxeoBlockingQueue

getQueueSize

public int getQueueSize()

Description copied from class: NuxeoBlockingQueue

Gets the size of the queue.

Specified by:

getQueueSize in class NuxeoBlockingQueue

putElement

public void putElement(Runnable r)
                throws InterruptedException

Description copied from class: NuxeoBlockingQueue

Adds an element into this queue, waiting if necessary for space to become available.

Specified by:

putElement in class NuxeoBlockingQueue

Throws:

InterruptedException

pollElement

public Runnable pollElement()

Description copied from class: NuxeoBlockingQueue

Retrieves and removes an element from the queue, or returns null if the queue is empty.

Specified by:

pollElement in class NuxeoBlockingQueue

take

public Runnable take()
              throws InterruptedException

Throws:

InterruptedException

poll

public Runnable poll(long timeout,
 TimeUnit unit)
              throws InterruptedException

Throws:

InterruptedException