Examples with QueueEntryKey org.apache.qpid.server.store.berkeleydb.entry.QueueEntryKey used on opensource projects

Example 1 with QueueEntryKey

use of org.apache.qpid.server.store.berkeleydb.entry.QueueEntryKey in project qpid-broker-j by apache.

the class AbstractBDBMessageStore method dequeueMessage.

/**
 * Extracts a message from a specified queue, in a given transaction.
 *
 * @param tx   The transaction for the operation.
 * @param queueId     The id of the queue to take the message from.
 * @param messageId The message to dequeue.
 *
 * @throws org.apache.qpid.server.store.StoreException If the operation fails for any reason, or if the specified message does not exist.
 */
private void dequeueMessage(final Transaction tx, final UUID queueId, long messageId) throws StoreException {
    DatabaseEntry key = new DatabaseEntry();
    QueueEntryKey queueEntryKey = new QueueEntryKey(queueId, messageId);
    UUID id = queueId;
    QueueEntryBinding.objectToEntry(queueEntryKey, key);
    getLogger().debug("Dequeue message id {} from queue with id {}", messageId, id);
    try {
        OperationStatus status = getDeliveryDb().delete(tx, key);
        if (status == OperationStatus.NOTFOUND) {
            throw new StoreException("Unable to find message with id " + messageId + " on queue with id " + id);
        } else if (status != OperationStatus.SUCCESS) {
            throw new StoreException("Unable to remove message with id " + messageId + " on queue with id " + id);
        }
        getLogger().debug("Removed message {} on queue with id {}", messageId, id);
    } catch (RuntimeException e) {
        getLogger().error("Failed to dequeue message " + messageId + " in transaction " + tx, e);
        throw getEnvironmentFacade().handleDatabaseException("Error accessing database while dequeuing message: " + e.getMessage(), e);
    }
}

Example 2 with QueueEntryKey

use of org.apache.qpid.server.store.berkeleydb.entry.QueueEntryKey in project qpid-broker-j by apache.

the class QueueEntryBinding method entryToObject.

public static QueueEntryKey entryToObject(final CachingUUIDFactory uuidFactory, DatabaseEntry entry) {
    byte[] data = entry.getData();
    int offset = entry.getOffset();
    UUID queueId = uuidFactory.createUuidFromBits(readUnsignedLong(data, offset) ^ 0x8000000000000000L, readUnsignedLong(data, offset + 8) ^ 0x8000000000000000L);
    long messageId = readUnsignedLong(data, offset + 16) ^ 0x8000000000000000L;
    return new QueueEntryKey(queueId, messageId);
}

Example 3 with QueueEntryKey

use of org.apache.qpid.server.store.berkeleydb.entry.QueueEntryKey in project qpid-broker-j by apache.

the class AbstractBDBMessageStore method enqueueMessage.

/**
 * Places a message onto a specified queue, in a given transaction.
 *
 * @param tx   The transaction for the operation.
 * @param queue     The the queue to place the message on.
 * @param messageId The message to enqueue.
 *
 * @throws org.apache.qpid.server.store.StoreException If the operation fails for any reason.
 */
private void enqueueMessage(final Transaction tx, final TransactionLogResource queue, long messageId) throws StoreException {
    DatabaseEntry key = new DatabaseEntry();
    QueueEntryKey queueEntryKey = new QueueEntryKey(queue.getId(), messageId);
    QueueEntryBinding.objectToEntry(queueEntryKey, key);
    DatabaseEntry value = new DatabaseEntry();
    value.setData(ENQUEUE_RECORD_VALUE, 0, ENQUEUE_RECORD_VALUE.length);
    try {
        if (getLogger().isDebugEnabled()) {
            getLogger().debug("Enqueuing message {} on queue {} with id {} in transaction {}", messageId, queue.getName(), queue.getId(), tx);
        }
        getDeliveryDb().put(tx, key, value);
    } catch (RuntimeException e) {
        getLogger().error("Failed to enqueue: {}", e.getMessage(), e);
        throw getEnvironmentFacade().handleDatabaseException("Error writing enqueued message with id " + messageId + " for queue " + queue.getName() + " with id " + queue.getId() + " to database", e);
    }
}