Examples of java.util.concurrent.BlockingQueue.offer()

Class java.util.concurrent.BlockingQueue

Examples of java.util.concurrent.BlockingQueue.offer()

java.util.concurrent.BlockingQueue.offer()
Inserts the specified element into this queue if it is possible to do so immediately without violating capacity restrictions, returning {@code true} upon success and {@code false} if no space is currentlyavailable. When using a capacity-restricted queue, this method is generally preferable to {@link #add}, which can fail to insert an element only by throwing an exception. @param e the element to add @return {@code true} if the element was added to this queue, else{@code false} @throws ClassCastException if the class of the specified elementprevents it from being added to this queue @throws NullPointerException if the specified element is null @throws IllegalArgumentException if some property of the specifiedelement prevents it from being added to this queue

         BlockingQueue queue = address2key.get(address);
         // on node stop the distribution manager might still return the dead server for a while after we have already removed its queue
         if (queue == null)
            return;


         boolean added = queue.offer(key);
         if (added) {
            exitingNumberOfKeys.incrementAndGet();
         }
         if (log.isTraceEnabled()) {
            if (added)

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    @Test
    public void testIssue292() throws Exception {
        final BlockingQueue qResponse = new ArrayBlockingQueue(1);
        createSingleNodeExecutorService("testIssue292").submit(new MemberCheck(), new ExecutionCallback<Member>() {
            public void onResponse(Member response) {
                qResponse.offer(response);
            }


            public void onFailure(Throwable t) {
            }
        });

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         return false;
      }


      private void tryAddKey(Address address, Object key) {
         BlockingQueue queue = address2key.get(address);
         boolean added = queue.offer(key);
         if (added) {
            exitingNumberOfKeys.incrementAndGet();
         }
         if (log.isTraceEnabled()) {
            log.trace((added ? "Successfully" : "Not") + " added key(" + key + ") to the address(" + address + ").");

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         BlockingQueue queue = address2key.get(address);
         // on node stop the distribution manager might still return the dead server for a while after we have already removed its queue
         if (queue == null)
            return;


         boolean added = queue.offer(key);
         if (added) {
            exitingNumberOfKeys.incrementAndGet();
         }
         if (log.isTraceEnabled()) {
            if (added)

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  public static void pump() {
    assert !SwingUtilities.isEventDispatchThread();
    final BlockingQueue queue = new LinkedBlockingQueue();
    SwingUtilities.invokeLater(new Runnable() {
      public void run() {
        queue.offer(queue);
      }
    });
    try {
      queue.take();
    }

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         BlockingQueue queue = address2key.get(address);
         // on node stop the distribution manager might still return the dead server for a while after we have already removed its queue
         if (queue == null)
            return;


         boolean added = queue.offer(key);
         if (added) {
            exitingNumberOfKeys.incrementAndGet();
         }
         if (log.isTraceEnabled()) {
            if (added)

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