Examples with UUID org.apache.activemq.artemis.utils.UUID used on opensource projects

Example 11 with UUID

use of org.apache.activemq.artemis.utils.UUID in project activemq-artemis by apache.

the class NodeManager method setNodeID.

/**
 * Sets the nodeID.
 * <p>
 * Only used by replicating backups.
 *
 * @param nodeID
 */
public void setNodeID(String nodeID) {
    synchronized (nodeIDGuard) {
        this.nodeID = new SimpleString(nodeID);
        this.uuid = new UUID(UUID.TYPE_TIME_BASED, UUID.stringToBytes(nodeID));
    }
}

Example 12 with UUID

use of org.apache.activemq.artemis.utils.UUID in project activemq-artemis by apache.

the class BackupSyncJournalTest method assertNodeIdWasSaved.

/**
 * @throws java.io.FileNotFoundException
 * @throws java.io.IOException
 * @throws InterruptedException
 */
private void assertNodeIdWasSaved() throws Exception {
    assertTrue("backup initialized", backupServer.getServer().waitForActivation(5, TimeUnit.SECONDS));
    // assert that nodeID was saved (to the right file!)
    String journalDirectory = backupConfig.getJournalDirectory();
    File serverLockFile = new File(journalDirectory, "server.lock");
    assertTrue("server.lock must exist!\n " + serverLockFile, serverLockFile.exists());
    RandomAccessFile raFile = new RandomAccessFile(serverLockFile, "r");
    try {
        // verify the nodeID was written correctly
        FileChannel channel = raFile.getChannel();
        final int size = 16;
        ByteBuffer id = ByteBuffer.allocateDirect(size);
        int read = channel.read(id, 3);
        assertEquals("tried to read " + size + " bytes", size, read);
        byte[] bytes = new byte[16];
        id.position(0);
        id.get(bytes);
        UUID uuid = new UUID(UUID.TYPE_TIME_BASED, bytes);
        SimpleString storedNodeId = new SimpleString(uuid.toString());
        assertEquals("nodeId must match", backupServer.getServer().getNodeID(), storedNodeId);
    } finally {
        raFile.close();
    }
}

Example 13 with UUID

use of org.apache.activemq.artemis.utils.UUID in project activemq-artemis by apache.

the class RealNodeManagerTest method testId.

@Test
public void testId() throws Exception {
    NodeManager nodeManager = new FileLockNodeManager(new File(getTemporaryDir()), false);
    nodeManager.start();
    UUID id1 = nodeManager.getUUID();
    nodeManager.stop();
    nodeManager.start();
    ActiveMQTestBase.assertEqualsByteArrays(id1.asBytes(), nodeManager.getUUID().asBytes());
    nodeManager.stop();
}

Example 14 with UUID

use of org.apache.activemq.artemis.utils.UUID in project activemq-artemis by apache.

the class JdbcNodeManager method readNodeId.

@Override
public SimpleString readNodeId() {
    final UUID nodeId = this.sharedStateManager.readNodeId();
    setUUID(nodeId);
    return getNodeId();
}

Example 15 with UUID

use of org.apache.activemq.artemis.utils.UUID in project activemq-artemis by apache.

the class JdbcSharedStateManager method initializeOrReadNodeId.

private UUID initializeOrReadNodeId(final UUID newNodeId) throws SQLException {
    final UUID nodeId;
    connection.setTransactionIsolation(Connection.TRANSACTION_SERIALIZABLE);
    connection.setAutoCommit(false);
    try {
        // optimistic try to initialize nodeId
        if (rawInitializeNodeId(newNodeId)) {
            nodeId = newNodeId;
        } else {
            nodeId = rawReadNodeId();
        }
    } catch (SQLException e) {
        connection.rollback();
        connection.setAutoCommit(true);
        if (logger.isDebugEnabled()) {
            logger.debug("Rollback while trying to update NodeId to " + newNodeId, e);
        }
        return null;
    }
    if (nodeId != null) {
        connection.commit();
        connection.setAutoCommit(true);
        return nodeId;
    } else {
        // that means that the rawInitializeNodeId has failed just due to contention or the nodeId wasn't committed yet
        connection.rollback();
        connection.setAutoCommit(true);
        if (logger.isDebugEnabled()) {
            logger.debug("Rollback after failed to update NodeId to " + newNodeId + " and haven't found any NodeId");
        }
        return null;
    }
}