Examples of org.apache.activemq.store.kahadb.disk.util.SequenceSet$Marshaller

Package org.apache.activemq.store.kahadb.disk.util

Examples of org.apache.activemq.store.kahadb.disk.util.SequenceSet$Marshaller

org.salamandra.o2.Marshaller
Keeps track of a added long values. Collapses ranges of numbers using a Sequence representation. Use to keep track of received message ids to find out if a message is duplicate or if there are any missing messages. @author chirino

        }
    }


    private void removeAckLocationsForSub(Transaction tx, StoredDestination sd, String subscriptionKey) throws IOException {
        if (!sd.ackPositions.isEmpty(tx)) {
            SequenceSet sequences = sd.ackPositions.remove(tx, subscriptionKey);
            if (sequences == null || sequences.isEmpty()) {
                return;
            }


            ArrayList<Long> unreferenced = new ArrayList<Long>();

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     * @throws IOException
     */
    private void removeAckLocation(Transaction tx, StoredDestination sd, String subscriptionKey, Long messageSequence) throws IOException {
        // Remove the sub from the previous location set..
        if (messageSequence != null) {
            SequenceSet range = sd.ackPositions.get(tx, subscriptionKey);
            if (range != null && !range.isEmpty()) {
                range.remove(messageSequence);
                if (!range.isEmpty()) {
                    sd.ackPositions.put(tx, subscriptionKey, range);
                } else {
                    sd.ackPositions.remove(tx, subscriptionKey);
                }

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    public LastAck getLastAck(Transaction tx, StoredDestination sd, String subscriptionKey) throws IOException {
        return sd.subscriptionAcks.get(tx, subscriptionKey);
    }


    public long getStoredMessageCount(Transaction tx, StoredDestination sd, String subscriptionKey) throws IOException {
        SequenceSet messageSequences = sd.ackPositions.get(tx, subscriptionKey);
        if (messageSequences != null) {
            long result = messageSequences.rangeSize();
            // if there's anything in the range the last value is always the nextMessage marker, so remove 1.
            return result > 0 ? result - 1 : 0;
        }


        return 0;

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                                Iterator<Entry<Long, HashSet<String>>> iterator = oldAckPositions.iterator(tx);
                                while (iterator.hasNext()) {
                                    Entry<Long, HashSet<String>> entry = iterator.next();


                                    for(String subKey : entry.getValue()) {
                                        SequenceSet pendingAcks = temp.get(subKey);
                                        if (pendingAcks == null) {
                                            pendingAcks = new SequenceSet();
                                            temp.put(subKey, pendingAcks);
                                        }


                                        pendingAcks.add(entry.getKey());
                                    }
                                }
                            }
                            // Now move the pending messages to ack data into the store backed
                            // structure.

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            } else {
                LOG.debug(toString() + ", Recovering page file...");
                nextTxid.set(redoRecoveryUpdates());


                // Scan all to find the free pages.
                freeList = new SequenceSet();
                for (Iterator<Page> i = tx().iterator(true); i.hasNext(); ) {
                    Page page = i.next();
                    if (page.getType() == Page.PAGE_FREE_TYPE) {
                        freeList.add(page.getPageId());
                    }

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    super(object, trxo);
  }


  @Override
  public void marshal(Node node) throws Exception {
    new Marshaller().marshal( getBean() , node);
  }

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