Package org.apache.dubbo.common.threadpool

Class MemoryLimitedLinkedBlockingQueue<E>

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractQueue<E>

java.util.concurrent.LinkedBlockingQueue<E>

org.apache.dubbo.common.threadpool.MemoryLimitedLinkedBlockingQueue<E>

All Implemented Interfaces:

Serializable, Iterable<E>, Collection<E>, BlockingQueue<E>, Queue<E>

public class MemoryLimitedLinkedBlockingQueue<E>
extends LinkedBlockingQueue<E>

Can completely solve the OOM problem caused by LinkedBlockingQueue.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
MemoryLimitedLinkedBlockingQueue(long memoryLimit, Instrumentation inst)
MemoryLimitedLinkedBlockingQueue(Instrumentation inst)
MemoryLimitedLinkedBlockingQueue(Collection<? extends E> c, long memoryLimit, Instrumentation inst)

Method Summary

Modifier and Type	Method	Description
void	clear()
long	getCurrentMemory()
long	getCurrentRemainMemory()
long	getMemoryLimit()
boolean	offer(E e)
boolean	offer(E e, long timeout, TimeUnit unit)
E	poll()
E	poll(long timeout, TimeUnit unit)
void	put(E e)
boolean	remove(Object o)
void	setMemoryLimit(long memoryLimit)
E	take()

Methods inherited from class java.util.concurrent.LinkedBlockingQueue

contains, drainTo, drainTo, forEach, iterator, peek, remainingCapacity, removeAll, removeIf, retainAll, size, spliterator, toArray, toArray, toString

Methods inherited from class java.util.AbstractQueue

add, addAll, element, remove

Methods inherited from class java.util.AbstractCollection

containsAll, isEmpty

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.concurrent.BlockingQueue

add

Methods inherited from interface java.util.Collection

addAll, containsAll, equals, hashCode, isEmpty, parallelStream, stream, toArray

Methods inherited from interface java.util.Queue

element, remove

Constructor Details

MemoryLimitedLinkedBlockingQueue

public MemoryLimitedLinkedBlockingQueue(Instrumentation inst)

MemoryLimitedLinkedBlockingQueue

public MemoryLimitedLinkedBlockingQueue(long memoryLimit,
 Instrumentation inst)

MemoryLimitedLinkedBlockingQueue

public MemoryLimitedLinkedBlockingQueue(Collection<? extends E> c,
 long memoryLimit,
 Instrumentation inst)

Method Details

setMemoryLimit

public void setMemoryLimit(long memoryLimit)

getMemoryLimit

public long getMemoryLimit()

getCurrentMemory

public long getCurrentMemory()

getCurrentRemainMemory

public long getCurrentRemainMemory()

put

public void put(E e)
         throws InterruptedException

Specified by:

put in interface BlockingQueue<E>

Overrides:

put in class LinkedBlockingQueue<E>

Throws:

InterruptedException

offer

public boolean offer(E e,
 long timeout,
 TimeUnit unit)
              throws InterruptedException

Specified by:

offer in interface BlockingQueue<E>

Overrides:

offer in class LinkedBlockingQueue<E>

Throws:

InterruptedException

offer

public boolean offer(E e)

Specified by:

offer in interface BlockingQueue<E>

Specified by:

offer in interface Queue<E>

Overrides:

offer in class LinkedBlockingQueue<E>

take

public E take()
       throws InterruptedException

Specified by:

take in interface BlockingQueue<E>

Overrides:

take in class LinkedBlockingQueue<E>

Throws:

InterruptedException

poll

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

Specified by:

poll in interface BlockingQueue<E>

Overrides:

poll in class LinkedBlockingQueue<E>

Throws:

InterruptedException

poll

public E poll()

Specified by:

poll in interface Queue<E>

Overrides:

poll in class LinkedBlockingQueue<E>

remove

public boolean remove(Object o)

Specified by:

remove in interface BlockingQueue<E>

Specified by:

remove in interface Collection<E>

Overrides:

remove in class LinkedBlockingQueue<E>

clear

public void clear()

Specified by:

clear in interface Collection<E>

Overrides:

clear in class LinkedBlockingQueue<E>