Examples of EDU.oswego.cs.dl.util.concurrent.PooledExecutor

Package EDU.oswego.cs.dl.util.concurrent

Examples of EDU.oswego.cs.dl.util.concurrent.PooledExecutor

EDU.oswego.cs.dl.util.concurrent.PooledExecutor
ialize to use a maximum of 8 threads. static PooledExecutor pool = new PooledExecutor(8); } Here are some sample variants in initialization:
1. Using a bounded buffer of 10 tasks, at least 4 threads (started only when needed due to incoming requests), but allowing up to 100 threads if the buffer gets full.
```
 pool = new PooledExecutor(new BoundedBuffer(10), 100); pool.setMinimumPoolSize(4); 
```
2. Same as (1), except pre-start 9 threads, allowing them to die if they are not used for five minutes.
```
 pool = new PooledExecutor(new BoundedBuffer(10), 100); pool.setMinimumPoolSize(4); pool.setKeepAliveTime(1000 * 60 * 5); pool.createThreads(9); 
```
3. Same as (2) except clients block if both the buffer is full and all 100 threads are busy:
```
 pool = new PooledExecutor(new BoundedBuffer(10), 100); pool.setMinimumPoolSize(4); pool.setKeepAliveTime(1000 * 60 * 5); pool.waitWhenBlocked(); pool.createThreads(9); 
```
4. An unbounded queue serviced by exactly 5 threads:
```
 pool = new PooledExecutor(new LinkedQueue()); pool.setKeepAliveTime(-1); // live forever pool.createThreads(5); 
```
Usage notes.
Pools do not mesh well with using thread-specific storage via java.lang.ThreadLocal. ThreadLocal relies on the identity of a thread executing a particular task. Pools use the same thread to perform different tasks.
If you need a policy not handled by the parameters in this class consider writing a subclass.
Version note: Previous versions of this class relied on ThreadGroups for aggregate control. This has been removed, and the method interruptAll added, to avoid differences in behavior across JVMs.
[ Introduction to this package. ]

     * one.
     *
     * @param maxSize Maximum size of the work executor pool.
     */
    public WorkExecutorPoolImpl(int maxSize) {
        pooledExecutor = new PooledExecutor(new LinkedQueue(), maxSize);
        pooledExecutor.setMinimumPoolSize(maxSize);
        pooledExecutor.waitWhenBlocked();
    }

View Full Code Here

     * @param maxSize Maximum size of the work executor pool.
     */
    public WorkExecutorPoolImpl(
            Channel channel,
            int maxSize) {
        pooledExecutor = new PooledExecutor(channel, maxSize);
        pooledExecutor.setMinimumPoolSize(maxSize);
        pooledExecutor.waitWhenBlocked();
    }

View Full Code Here

     * one.
     *
     * @param maxSize Maximum size of the work executor pool.
     */
    public WorkExecutorPoolImpl(int maxSize) {
        pooledExecutor = new PooledExecutor(new LinkedQueue(), maxSize);
        pooledExecutor.setMinimumPoolSize(maxSize);
        pooledExecutor.waitWhenBlocked();
    }

View Full Code Here

     * @param maxSize Maximum size of the work executor pool.
     */
    public WorkExecutorPoolImpl(
            Channel channel,
            int maxSize) {
        pooledExecutor = new PooledExecutor(channel, maxSize);
        pooledExecutor.setMinimumPoolSize(maxSize);
        pooledExecutor.waitWhenBlocked();
    }

View Full Code Here

    * @param maxPoolSize DOCUMENT_ME
    */
   public WorkManagerImpl( int maxPoolSize )
   {
      LOG.debug(MSG.getMessage( Keys.CREATE_WRK_MGR_POOL_SZE, Integer.toString(maxPoolSize)));
      this.pool = new PooledExecutor( maxPoolSize );
   }

View Full Code Here

            c = new LinkedQueue();
        } else {
            c = new BoundedBuffer(queueSize);
        }


        pool = new PooledExecutor(c, maxPoolSize);
        pool.setMinimumPoolSize(minPoolSize);
        pool.setKeepAliveTime(1000 * 60 * threadKeepAliveTime);


        workerMap = new HashMap();

View Full Code Here

            c = new LinkedQueue();
        } else {
            c = new BoundedBuffer(queueSize);
        }


        pool = new PooledExecutor(c, maxPoolSize);
        pool.setMinimumPoolSize(minPoolSize);
        pool.setKeepAliveTime(1000 * 60 * threadKeepAliveTime);


        workerMap = new HashMap();
        workflowQueue = new Vector();

View Full Code Here


    /**
     * Creates a new DynamicPooledExecutor.
     */
    public DynamicPooledExecutor() {
        executor = new PooledExecutor();
        executor.setKeepAliveTime(500);
        executor.waitWhenBlocked();
        adjustPoolSize();
    }

View Full Code Here

      c = new LinkedQueue();
    } else {
      c = new BoundedBuffer(queueSize);
    }


    pool = new PooledExecutor(c, maxPoolSize);
    pool.setMinimumPoolSize(minPoolSize);
    pool.setKeepAliveTime(1000 * 60 * threadKeepAliveTime);


    workerMap = new HashMap();

View Full Code Here

    * @param maxPoolSize DOCUMENT_ME
    */
   public WorkManagerImpl( int maxPoolSize )
   {
      LOG.debug(MSG.getMessage( Keys.CREATE_WRK_MGR_POOL_SZE, Integer.toString(maxPoolSize)));
      this.pool = new PooledExecutor( maxPoolSize );
   }

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of EDU.oswego.cs.dl.util.concurrent.PooledExecutor

examples.util.concurrent.AsynchronousManager

org.activeio.adapter.AsynchWriteAsynchChannelAdapter$ObjectDispatcher

org.activemq.service.AsyncSimpleBrokerTest

org.activemq.service.boundedvm.DurableQueueBoundedMessageManager

org.activemq.service.boundedvm.TransientQueueBoundedMessageManager

org.activemq.transport.jgroups.JGroupsTransportChannel

org.activemq.transport.NetworkConnector

org.activemq.transport.tcp.TcpTransportChannel

org.activemq.transport.tcp.TcpTransportServerChannel

org.activemq.util.AsyncProxyTest

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.