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

Introduction

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

Prototype

lock

Source Link

Usage

From source file:com.github.jrh3k5.habitat4j.rest.CachingAccessTokenProvider.java

/**
 * Gets the current, if any, cached access token.
 * /* ww w .j a  va2s.  c o m*/
 * @return An {@link Optional} containing the access token that may be cached; this will be empty if no access token is currently cached.
 */
private Optional<AccessToken> getCurrentAccessToken() {
    final Lock readLock = storeLock.readLock();
    readLock.lock();
    try {
        return Optional.ofNullable(accessTokenStore.getValue());
    } finally {
        readLock.unlock();
    }
}

From source file:com.cip.crane.agent.deploy.UndeploymentThread.java

@Override
public void run() {
    Lock lock = LockHelper.getLock(taskID);
    try {//from www.j  av a2  s  .c  o  m
        lock.lock();
        DeploymentConf conf = (DeploymentConf) cs.getConf(localIp, taskID);
        DeploymentStatus status = (DeploymentStatus) cs.getStatus(localIp, taskID);
        if (status == null || status.getStatus() == DeploymentStatus.DELETE_SUCCESS) {
            return;
        }

        undeployTask(conf, status);
        cs.updateStatus(localIp, taskID, status);
    } catch (Exception e) {
        LOGGER.error(e, e);
    } finally {
        lock.unlock();
    }
}

From source file:org.oesf.eque.services.impl.QueueDispatcherImpl.java

@Override
public Integer allocateNumber() throws NoFreePlaceAvailableException {

    Lock atomic = this.lock;

    try {/*from   w ww .j  a  v  a  2 s  .c o  m*/
        atomic.lock();

        occupiedQueue.add(freeQueue.element());
        Integer allocatedNumber = freeQueue.remove();
        LOG.debug("QDS-34C5F87A3F23: The on-demand allocated number is: \"{}\"", allocatedNumber);

        notifyStateChange(allocatedNumber, LocalDateTime.now(), FREE, OCCUPIED);
        return allocatedNumber;

    } catch (IllegalStateException ex) { // occupiedQueue.add()

        LOG.error("QDS-0EAE6367CEEE: Can not occupy a number.");
        throw new ChangeStateException();

    } catch (NoSuchElementException ex) { // freeQueue .element() | .remove()

        LOG.debug("QDS-3A2DFE3EE673: Allocating a new place number.");
        throw new NoFreePlaceAvailableException();

    } finally {
        atomic.unlock();
    }
}

From source file:com.github.jrh3k5.habitat4j.rest.CachingAccessTokenProvider.java

/**
 * Gets a new access token./* w  w  w  .  j a  va 2s . co m*/
 * 
 * @return An {@link AccessToken} representing the new access token.
 */
private AccessToken getNewAccessToken() {
    final Lock writeLock = storeLock.writeLock();
    writeLock.lock();
    try {
        final AccessToken currentAccessToken = accessTokenStore.getValue();
        if (currentAccessToken != null && !needsRefresh(currentAccessToken)) {
            return currentAccessToken;
        }

        final AccessToken newAccessToken = sourceProvider.getAccessToken();
        accessTokenStore.setValue(newAccessToken);
        return newAccessToken;
    } finally {
        writeLock.unlock();
    }
}

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

@Override
public void run() {
    Lock lock = LockHelper.getLock(jobInstanceId);
    try {/*from   w ww.j a v  a 2  s . 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:com.cip.crane.agent.deploy.DeploymentThread.java

@Override
public void run() {
    LOGGER.debug("start deploy");
    Lock lock = LockHelper.getLock(task);
    try {//  www. ja  v  a  2s .c o  m
        lock.lock();
        DeploymentConf conf = (DeploymentConf) cs.getConf(localIp, task);
        DeploymentStatus status = (DeploymentStatus) cs.getStatus(localIp, task);
        if (status == null || status.getStatus() == DeploymentStatus.DEPLOY_SUCCESS) {
            return;
        }

        deployTask(conf, status);
        cs.updateStatus(localIp, task, status);
        cs.updateConf(localIp, task, conf);
    } catch (Exception e) {
        LOGGER.error(e, e);
    } finally {
        lock.unlock();
    }
}

From source file:org.nuxeo.nike.UpdateANikeDirectory.java

@OperationMethod
public void run() {
    Session directorySession = null;//from  w w w.  ja  v a2s  . c om
    CoreSession coreSession = null;

    Lock lock = new ReentrantLock();
    lock.lock();
    try {
        directorySession = directoryService.open(directoryName);

        // Delete all entries in the directory
        DocumentModelList entries = directorySession.getEntries();
        for (DocumentModel entry : entries) {
            directorySession.deleteEntry(entry);
        }

        // Query the documents and create unique entries
        coreSession = ctx.getCoreSession();
        String nxql = "SELECT * FROM " + docType;
        nxql += " WHERE ecm:currentLifeCycleState != 'deleted'";
        DocumentModelList allDocs = coreSession.query(nxql);

        List<String> titles = new ArrayList<String>();
        for (DocumentModel oneDoc : allDocs) {
            String title = oneDoc.getTitle();
            if (!titles.contains(title)) {
                titles.add(title);

                Map<String, Object> entry = new HashMap<String, Object>();
                entry.put("id", title);
                entry.put("label", title);
                entry.put("obsolete", 0);
                entry.put("ordering", 10000);

                directorySession.createEntry(entry);
            }
        }
        directorySession.close();

    } catch (Exception e) {
        log.error("Error creating the directory", e);
    } finally {
        lock.unlock();
    }
}

From source file:com.cip.crane.agent.sheduler.KillTaskThread.java

@Override
public void run() {
    Lock lock = LockHelper.getLock(jobInstanceId);
    try {//  w w  w.  j a va 2  s  .c om
        lock.lock();

        ScheduleConf conf = (ScheduleConf) cs.getConf(localIp, jobInstanceId);

        ScheduleStatus status = (ScheduleStatus) cs.getStatus(localIp, jobInstanceId);

        LOGGER.info("KILL TASK THREAD|jobInstanceId:" + jobInstanceId + "| ip:" + localIp + "  |conf:" + conf
                + "  |status:" + status);

        if (conf != null && status != null) {
            killTask(localIp, conf, status);
        }

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

From source file:org.springframework.integration.hazelcast.HazelcastLocalInstanceRegistrar.java

private void syncConfigurationMultiMap(HazelcastInstance hazelcastInstance) {
    Lock lock = hazelcastInstance.getLock(SPRING_INTEGRATION_INTERNAL_CLUSTER_LOCK);
    lock.lock();
    try {//from   w ww  . ja  v a  2 s .co m
        MultiMap<SocketAddress, SocketAddress> multiMap = hazelcastInstance
                .getMultiMap(SPRING_INTEGRATION_INTERNAL_CLUSTER_MULTIMAP);
        for (HazelcastInstance localInstance : Hazelcast.getAllHazelcastInstances()) {
            SocketAddress localInstanceSocketAddress = localInstance.getLocalEndpoint().getSocketAddress();
            if (multiMap.size() == 0) {
                multiMap.put(localInstanceSocketAddress, localInstanceSocketAddress);
            } else {
                multiMap.put(multiMap.keySet().iterator().next(), localInstanceSocketAddress);
            }
        }
    } finally {
        lock.unlock();
    }
}

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

/**
 * Get the stdout of the running command.
 *
 * @return//  w ww  .j a va 2 s .co  m
 */
public String getStdOut() {
    String s;
    Lock lock = new ReentrantLock();
    lock.lock();
    try {
        this.outputStream.flush();
        s = this.outputStream.getAllLinesAsString();
    } finally {
        lock.unlock();
    }
    return s;
}