Example usage for java.util.concurrent.locks Lock unlock

Introduction

In this page you can find the example usage for java.util.concurrent.locks Lock unlock.

Prototype

void unlock();

Source Link

Document

Releases the lock.

Usage

From source file:org.apache.hadoop.hbase.util.ConnectionCache.java

/**
 * Caller doesn't close the admin afterwards.
 * We need to manage it and close it properly.
 *//*from ww w. ja  va 2 s . c o m*/
public Admin getAdmin() throws IOException {
    ConnectionInfo connInfo = getCurrentConnection();
    if (connInfo.admin == null) {
        Lock lock = locker.acquireLock(getEffectiveUser());
        try {
            if (connInfo.admin == null) {
                connInfo.admin = connInfo.connection.getAdmin();
            }
        } finally {
            lock.unlock();
        }
    }
    return connInfo.admin;
}

From source file:org.codehaus.wadi.location.partitionmanager.local.BasicLocalPartition.java

public void onMessage(Envelope message, InsertIMToPM request) {
    Lock readLock = readWriteLock.readLock();
    readLock.lock();//  w  w w .j av a  2s .  com
    try {
        LocalPartitionInsertIMToPMAction action = new LocalPartitionInsertIMToPMAction(dispatcher,
                nameToLocation, log);
        action.onMessage(message, request);
    } finally {
        readLock.unlock();
    }
}

From source file:org.codehaus.wadi.location.partitionmanager.local.BasicLocalPartition.java

public void onMessage(Envelope message, DeleteIMToPM request) {
    Lock readLock = readWriteLock.readLock();
    readLock.lock();//from  w ww.  jav a 2 s .  c o m
    try {
        LocalPartitionDeleteIMToPMAction action = new LocalPartitionDeleteIMToPMAction(dispatcher,
                nameToLocation, log);
        action.onMessage(message, request);
    } finally {
        readLock.unlock();
    }
}

From source file:org.codehaus.wadi.location.partitionmanager.local.BasicLocalPartition.java

public void onMessage(Envelope message, EvacuateIMToPM request) {
    Lock readLock = readWriteLock.readLock();
    readLock.lock();/*  www  .  j a  va  2s .  co m*/
    try {
        LocalPartitionEvacuateIMToPMAction action = new LocalPartitionEvacuateIMToPMAction(dispatcher,
                nameToLocation, log);
        action.onMessage(message, request);
    } finally {
        readLock.unlock();
    }
}

From source file:com.mg.framework.service.DatabaseAuditServiceImpl.java

public void stop() {
    Lock lock = entityAuditSetupLock.writeLock();
    lock.lock();/* ww  w .  j  a  v a 2s.  c  om*/
    try {
        entityAuditSetup.clear();
    } finally {
        lock.unlock();
    }
}

From source file:info.pancancer.arch3.worker.WorkerHeartbeat.java

@Override
public void run() {

    Channel reportingChannel = null;
    try {/*from ww w. j a v a2 s .c om*/
        try {
            reportingChannel = Utilities.setupExchange(settings, this.queueName);
        } catch (IOException | TimeoutException | AlreadyClosedException e) {
            LOG.error("Exception caught! Queue channel could not be opened, waiting. Exception is: "
                    + e.getMessage(), e);
            // retry after a minute, do not die simply because the launcher is unavailable, it may come back
            Thread.sleep(Base.ONE_MINUTE_IN_MILLISECONDS);
        }
    } catch (InterruptedException e) {
        Thread.currentThread().interrupt();
        LOG.info("Caught interrupt signal, heartbeat shutting down.", e);
        return;
    }

    LOG.info("starting heartbeat thread, will send heartbeat message ever " + secondsDelay + " seconds.");
    while (!Thread.interrupted()) {
        // byte[] stdOut = this.getMessageBody().getBytes(StandardCharsets.UTF_8);
        try {
            try {
                Status heartbeatStatus = new Status();
                heartbeatStatus.setJobUuid(this.jobUuid);
                heartbeatStatus.setMessage("job is running; IP address: " + networkID);
                heartbeatStatus.setState(StatusState.RUNNING);
                heartbeatStatus.setType(Utilities.JOB_MESSAGE_TYPE);
                heartbeatStatus.setVmUuid(this.vmUuid);
                heartbeatStatus.setIpAddress(networkID);

                // String stdOut = this.statusSource.getStdOut();
                Lock lock = new ReentrantLock();
                lock.lock();
                String stdOut = this.statusSource.getStdOut(stdoutSnipSize);
                String stdErr = this.statusSource.getStdErr();
                lock.unlock();
                heartbeatStatus.setStdout(stdOut);
                heartbeatStatus.setStderr(stdErr);
                String heartBeatMessage = heartbeatStatus.toJSON();
                LOG.debug("Sending heartbeat message to " + queueName + ", with body: " + heartBeatMessage);
                reportingChannel.basicPublish(queueName, queueName, MessageProperties.PERSISTENT_TEXT_PLAIN,
                        heartBeatMessage.getBytes(StandardCharsets.UTF_8));
                reportingChannel.waitForConfirms();

                Thread.sleep((long) (secondsDelay * MILLISECONDS_PER_SECOND));
            } catch (IOException | AlreadyClosedException e) {
                LOG.error("IOException caught! Message may not have been published. Exception is: "
                        + e.getMessage(), e);
                // retry after a minute, do not die simply because the launcher is unavailable, it may come back
                Thread.sleep(Base.ONE_MINUTE_IN_MILLISECONDS);
            }
        } catch (InterruptedException e) {
            LOG.info("Heartbeat shutting down.");
            if (reportingChannel.getConnection().isOpen()) {
                try {
                    reportingChannel.getConnection().close();
                } catch (IOException e1) {
                    LOG.error("Error closing reportingChannel connection: " + e1.getMessage(), e1);
                }
            }
            if (reportingChannel.isOpen()) {
                try {
                    reportingChannel.close();
                } catch (IOException e1) {
                    LOG.error("Error (IOException) closing reportingChannel: " + e1.getMessage(), e1);
                } catch (TimeoutException e1) {
                    LOG.error("Error (TimeoutException) closing reportingChannel: " + e1.getMessage(), e1);
                }
            }
            LOG.debug("reporting channel open: " + reportingChannel.isOpen());
            LOG.debug("reporting channel connection open: " + reportingChannel.getConnection().isOpen());

            Thread.currentThread().interrupt();
        }
    }
}

From source file:org.eclipse.gyrex.monitoring.metrics.BaseMetric.java

/**
 * Returns a map of attribute values contained in the metric.
 * <p>//w w  w .j  ava 2  s  .  c o  m
 * Although public this method must not be called by clients. The framework
 * uses this method to obtain further information about a metric for
 * processing purposes.
 * </p>
 * 
 * @return an unmodifiable map of metric attribute values
 * @noreference This method is not intended to be referenced by clients.
 */
public final Map<String, ?> getAttributeValues() {
    final Map<String, Object> attributeValues = new HashMap<String, Object>();
    final Lock lock = getReadLock();
    lock.lock();
    try {
        populateAttributeValues(attributeValues);
    } finally {
        lock.unlock();
    }
    return Collections.unmodifiableMap(attributeValues);
}

From source file:com.dp.bigdata.taurus.agent.sheduler.KillTaskThread.java

@Override
public void run() {
    Lock lock = LockHelper.getLock(jobInstanceId);
    try {//w w  w .ja va  2s .com
        lock.lock();
        ScheduleConf conf = (ScheduleConf) cs.getConf(localIp, jobInstanceId);
        ScheduleStatus status = (ScheduleStatus) cs.getStatus(localIp, jobInstanceId);
        killTask(localIp, conf, status);

    } catch (Exception e) {
        LOGGER.error(e, e);
    } finally {
        lock.unlock();
    }
}

From source file:org.mule.util.queue.DualRandomAccessFileQueueStoreDelegate.java

@Override
protected boolean doAddAll(Collection<? extends Serializable> items) {
    Lock lock = filesLock.readLock();
    lock.lock();/*from  w  w  w .  j a  v a 2s  .  c om*/
    try {
        for (Serializable item : items) {
            add(item);
        }
    } finally {
        lock.unlock();
    }
    return true;
}

From source file:org.mule.util.queue.DualRandomAccessFileQueueStoreDelegate.java

@Override
public int size() {
    Lock lock = filesLock.readLock();
    lock.lock();//from www .  ja va2  s. c  om
    try {
        return randomAccessFileQueueStore1.getSize() + randomAccessFileQueueStore2.getSize();
    } finally {
        lock.unlock();
    }
}