Package org.apache.activemq.broker.region

Examples of org.apache.activemq.broker.region.MessageReference

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        return result;
    }

    @Override
    public synchronized MessageReference next() {
        MessageReference result = currentCursor != null ? currentCursor.next() : null;
        return result;
    }
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    public synchronized boolean isEmpty() {
        if (memoryList.isEmpty() && isDiskListEmpty()) {
            return true;
        }
        for (Iterator<MessageReference> iterator = memoryList.iterator(); iterator.hasNext();) {
            MessageReference node = iterator.next();
            if (node == QueueMessageReference.NULL_MESSAGE) {
                continue;
            }
            if (!node.isDropped()) {
                return false;
            }
            // We can remove dropped references.
            iterator.remove();
        }
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    @Override
    public synchronized LinkedList<MessageReference> pageInList(int maxItems) {
        LinkedList<MessageReference> result = new LinkedList<MessageReference>();
        int count = 0;
        for (Iterator<MessageReference> i = memoryList.iterator(); i.hasNext() && count < maxItems;) {
            MessageReference ref = i.next();
            ref.incrementReferenceCount();
            result.add(ref);
            count++;
        }
        if (count < maxItems && !isDiskListEmpty()) {
            for (Iterator<MessageReference> i = new DiskIterator(); i.hasNext() && count < maxItems;) {
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    protected synchronized void expireOldMessages() {
        if (!memoryList.isEmpty()) {
            LinkedList<MessageReference> tmpList = new LinkedList<MessageReference>(this.memoryList);
            this.memoryList = new LinkedList<MessageReference>();
            while (!tmpList.isEmpty()) {
                MessageReference node = tmpList.removeFirst();
                if (node.isExpired()) {
                    discard(node);
                } else {
                    memoryList.add(node);
                }
            }
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    protected synchronized void flushToDisk() {

        if (!memoryList.isEmpty()) {
            while (!memoryList.isEmpty()) {
                MessageReference node = memoryList.removeFirst();
                node.decrementReferenceCount();
                ByteSequence bs;
                try {
                    bs = getByteSequence(node.getMessage());
                    getDiskList().addLast(node.getMessageId().toString(), bs);
                } catch (IOException e) {
                    LOG.error("Failed to write to disk list", e);
                    throw new RuntimeException(e);
                }
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            public boolean hasNext() {
                return next != null;
            }

            public MessageReference next() {
                MessageReference result = null;
                this.current = this.next;
                result = this.current.getMessage();
                this.next = (PendingNode) this.next.getNext();
                return result;
            }
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        return result;
    }

    @Override
    public synchronized MessageReference next() {
        MessageReference result = currentCursor != null ? currentCursor.next() : null;
        return result;
    }
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        return true;
    }

    public void recover(ConnectionContext context, Topic topic, SubscriptionRecovery sub) throws Exception {
        // Re-dispatch the last message seen.
        MessageReference node = lastImage;
        if (node != null) {
            sub.addRecoveredMessage(context, node);
        }
    }
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        return this.iterator.hasNext();
    }
   
   
    public final synchronized MessageReference next() {
        MessageReference result = null;
        if (!this.batchList.isEmpty()&&this.iterator.hasNext()) {
            result = this.iterator.next();
        }
        last = result;
        if (result != null) {
            result.incrementReferenceCount();
        }
        return result;
    }
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    }
   
   
    public synchronized void gc() {
        for (Iterator<MessageReference>i = batchList.iterator();i.hasNext();) {
            MessageReference msg = i.next();
            rollback(msg.getMessageId());
            msg.decrementReferenceCount();
        }
        batchList.clear();
        clearIterator(false);
        batchResetNeeded = true;
        setCacheEnabled(false);
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Related Classes of org.apache.activemq.broker.region.MessageReference

  • org.apache.activemq.broker.region.cursors.AbstractStoreCursor
  • org.apache.activemq.broker.region.cursors.FilePendingMessageCursor
  • org.apache.activemq.broker.region.cursors.FilePendingMessageCursorTest
  • org.apache.activemq.broker.region.cursors.OrderedPendingList
  • org.apache.activemq.broker.region.cursors.StoreDurableSubscriberCursor
  • org.apache.activemq.broker.region.cursors.StoreQueueCursor
  • org.apache.activemq.broker.region.cursors.StoreQueueCursorNoDuplicateTest
  • org.apache.activemq.broker.region.cursors.StoreQueueCursorOrderTest
  • org.apache.activemq.broker.region.cursors.VMPendingMessageCursor
  • org.apache.activemq.broker.region.policy.FixedCountSubscriptionRecoveryPolicy
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