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:DemandCache.java

/**
 * @see java.util.Map#putAll(java.util.Map)
 *///  ww  w  .ja v  a 2  s .c o  m
public void putAll(Map<? extends K, ? extends V> m) {
    Lock lock = theLock.writeLock();
    lock.lock();
    try {
        if (thePurgeTime < System.currentTimeMillis() - 60 * 1000)
            purge();
        for (java.util.Map.Entry<? extends K, ? extends V> entry : m.entrySet()) {
            CacheValue cv = new CacheValue();
            cv.value = entry.getValue();
            _access(cv, ACCESS_SET);
            theCache.put(entry.getKey(), cv);
        }
    } finally {
        lock.unlock();
    }
}

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From source file:jenkins.plugins.git.GitSCMFileSystem.java

<V> V invoke(final FSFunction<V> function) throws IOException, InterruptedException {
    Lock cacheLock = AbstractGitSCMSource.getCacheLock(cacheEntry);
    cacheLock.lock();//from   w w w . ja  v  a2  s . co m
    try {
        File cacheDir = AbstractGitSCMSource.getCacheDir(cacheEntry);
        if (cacheDir == null || !cacheDir.isDirectory()) {
            throw new IOException("Closed");
        }
        return client.withRepository(new RepositoryCallback<V>() {
            @Override
            public V invoke(Repository repository, VirtualChannel virtualChannel)
                    throws IOException, InterruptedException {
                return function.invoke(repository);
            }
        });
    } finally {
        cacheLock.unlock();
    }
}

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From source file:org.pepstock.jem.gwt.server.services.CommonResourcesManager.java

/**
 * Gets all resources list defined in JEM
 * /*from   w ww  .ja  v  a 2  s .c  o m*/
 * @param filter
 *            filter of resources
 * @return collection of resources
 * @throws ServiceMessageException
 * @throws Exception
 *             if any exception occurs
 */
public Collection<Resource> values(String filter) throws ServiceMessageException {
    // checks if the user is authorized to read resources information
    // if not, this method throws an exception
    checkAuthorization(new StringPermission(Permissions.RESOURCES_READ));

    IMap<String, Resource> map = getInstance().getMap(Queues.COMMON_RESOURCES_MAP);
    // creates a Resource predicate
    // using filter filled on UI
    ResourcePredicate predicate;
    try {
        predicate = new ResourcePredicate(Filter.parse(filter));
    } catch (Exception e) {
        LogAppl.getInstance().debug(e.getMessage(), e);
        // default case, all resources with empty filter by name
        Filter all = new Filter();
        all.add(new FilterToken(ResourceFilterFields.NAME.getName(), StringUtils.EMPTY));
        predicate = new ResourcePredicate(all);
    }

    Collection<Resource> result = null;
    // locks all map to have a consistent collection
    // only for 10 seconds otherwise
    // throws an exception
    boolean isLock = false;
    Lock lock = getInstance().getLock(Queues.COMMON_RESOURCES_MAP_LOCK);
    try {
        isLock = lock.tryLock(10, TimeUnit.SECONDS);
        if (isLock) {
            // performs predicate to have the collection
            result = map.values(predicate);
        } else {
            // timeout exception
            throw new ServiceMessageException(UserInterfaceMessage.JEMG022E, Queues.COMMON_RESOURCES_MAP);
        }
    } catch (InterruptedException e) {
        throw new ServiceMessageException(UserInterfaceMessage.JEMG022E, e, Queues.COMMON_RESOURCES_MAP);
    } finally {
        // unlocks always the map
        if (isLock) {
            lock.unlock();
        }
    }
    // returns a collection
    return result;

}

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

public void loadAuditSetup() {
    boolean startTran = false;
    try {/*ww w. j  a  v  a 2  s  .  c om*/
        logger.info("load audit setup");

        startTran = ServerUtils.getTransactionManager().getStatus() == Status.STATUS_NO_TRANSACTION;
        if (startTran)
            ServerUtils.getTransactionManager().begin();

        List<PersistentObject> list = OrmTemplate.getInstance()
                .findByCriteria(OrmTemplate.createCriteria("com.mg.merp.core.model.DatabaseAuditSetup"));

        Lock lock = entityAuditSetupLock.writeLock();
        lock.lock();
        try {
            if (entityAuditSetup != null)
                entityAuditSetup.clear();

            for (PersistentObject item : list) {
                String entityName = (String) item.getAttribute("AuditedEntityName");
                EntityAuditSetup auditSetup = entityAuditSetup.get(entityName);
                if (auditSetup == null)
                    entityAuditSetup.put(entityName, new EntityAuditSetup(item));
                else
                    auditSetup.setAudit(item);
            }
        } finally {
            lock.unlock();
        }

        if (startTran)
            ServerUtils.getTransactionManager().commit();
    } catch (Exception e) {
        logger.error("load audit setup failed", e);
        try {
            if (startTran)
                ServerUtils.getTransactionManager().rollback();
        } catch (Exception ee) {
            logger.error("transaction rollback failed", ee);
        }
    }
}

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From source file:jp.aegif.nemaki.cmis.service.impl.NavigationServiceImpl.java

@Override
public ObjectData getFolderParent(CallContext callContext, String repositoryId, String folderId,
        String filter) {/*w  ww . ja v a 2  s  .c  o m*/

    exceptionService.invalidArgumentRequiredString("folderId", folderId);

    Lock childLock = threadLockService.getReadLock(repositoryId, folderId);

    try {
        childLock.lock();

        // //////////////////
        // General Exception
        // //////////////////
        Folder folder = (Folder) contentService.getContent(repositoryId, folderId);
        exceptionService.objectNotFound(DomainType.OBJECT, folder, folderId);
        exceptionService.permissionDenied(callContext, repositoryId,
                PermissionMapping.CAN_GET_FOLDER_PARENT_OBJECT, folder);

        // //////////////////
        // Specific Exception
        // //////////////////
        Folder parent = contentService.getParent(repositoryId, folderId);

        Lock parentLock = threadLockService.getReadLock(repositoryId, parent.getId());
        try {
            parentLock.lock();

            exceptionService.objectNotFoundParentFolder(repositoryId, folderId, parent);
            exceptionService.invalidArgumentRootFolder(repositoryId, folder);

            // //////////////////
            // Body of the method
            // //////////////////
            return compileService.compileObjectData(callContext, repositoryId, parent, filter, true,
                    IncludeRelationships.NONE, null, true);

        } finally {
            parentLock.unlock();
        }
    } finally {
        childLock.unlock();
    }
}

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From source file:org.pentaho.platform.plugin.action.olap.impl.OlapServiceImpl.java

/**
 * Clears all caches for all locales.//from  w ww. j  av a 2  s.c o  m
 */
protected void resetCache(IPentahoSession session) {
    final Lock writeLock = cacheLock.writeLock();
    try {
        writeLock.lock();
        final ICacheManager cacheMgr = PentahoSystem.getCacheManager(session);
        cacheMgr.clearRegionCache(CATALOG_CACHE_REGION);
    } finally {
        writeLock.unlock();
    }
}

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From source file:org.mule.security.oauth.BaseOAuthClientFactory.java

/**
 * Passivates the object by updating the state of the persisted object with the
 * one of the given one. If the object doesn't exist in the object store then it
 * is created//w  w  w  .  ja  v  a 2  s. c  o  m
 * 
 * @param key the key of the object at the object store
 * @param connector an instance of {@link org.mule.security.oauth.OAuth2Adapter}
 * @throws IllegalArgumentException if obj is not an instance of the type returned by {@link BaseOAuthClientFactory#getAdapterClass()}
 */
@Override
public final void passivateObject(String key, OAuth2Adapter connector) throws Exception {
    if (!this.getAdapterClass().isInstance(connector)) {
        throw new IllegalArgumentException("Invalid connector type");
    }

    OAuthState state;

    Lock lock = this.getLock(key);
    lock.lock();

    try {
        if (this.objectStore.contains(key)) {
            state = this.retrieveOAuthState(key, false);
            this.objectStore.remove(key);
        } else {
            state = new OAuthState();
        }

        state.setAccessToken(connector.getAccessToken());
        state.setAccessTokenUrl(connector.getAccessTokenUrl());
        state.setAuthorizationUrl(connector.getAuthorizationUrl());
        state.setRefreshToken(connector.getRefreshToken());

        this.setCustomStateProperties(connector, state);

        this.objectStore.store(key, state);
    } finally {
        lock.unlock();
    }
}

---

From source file:com.enonic.cms.business.portal.image.ImageServiceImpl.java

public ImageResponse process(ImageRequest imageRequest) {
    Preconditions.checkNotNull(imageRequest, "imageRequest cannot be null");

    final ImageRequestTrace imageRequestTrace = livePortalTraceService.getCurrentImageRequestTrace();

    String blobKey = getBlobKey(imageRequest);
    if (blobKey == null) {
        return ImageResponse.notFound();
    }/*from   w w w  .j a  v a 2  s. c  o m*/

    imageRequest.setBlobKey(blobKey);

    final Lock locker = concurrencyLock.getLock(imageRequest.getCacheKey());

    try {
        locker.lock();

        ImageResponse res = imageCache.get(imageRequest);
        if (res != null) {
            ImageRequestTracer.traceImageResponse(imageRequestTrace, res);
            ImageRequestTracer.traceUsedCachedResult(imageRequestTrace, true);
            return res;
        }

        try {
            res = doProcess(imageRequest);
            ImageRequestTracer.traceImageResponse(imageRequestTrace, res);
            ImageRequestTracer.traceUsedCachedResult(imageRequestTrace, false);
            return res;
        } catch (Exception e) {
            throw new ImageProcessorException("Failed to process image: " + e.getMessage(), e);
        }
    } finally {
        locker.unlock();
    }
}

---

From source file:org.apache.rave.synchronization.SynchronizingAspect.java

@Around("synchronizePointcut()")
public Object synchronizeInvocation(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
    MethodSignature methodSignature = (MethodSignature) proceedingJoinPoint.getSignature();
    Method method = methodSignature.getMethod();
    Object target = proceedingJoinPoint.getTarget();
    Object[] args = proceedingJoinPoint.getArgs();
    Class<?> targetClass = AopProxyUtils.ultimateTargetClass(target);
    Synchronized annotation = getAnnotation(targetClass, method);
    Validate.notNull(annotation, "Could not find @Synchronized annotation!");

    Lock lock = getLock(targetClass, method, args, annotation);
    if (lock == null) {
        logger.debug(/*from   ww  w  .  j a v  a  2 s  . co m*/
                "No lock obtained for call [{}] on targetClass [{}] - proceeding without synchronization on "
                        + "thread {}",
                new Object[] { method.getName(), targetClass.getName(), Thread.currentThread().getId() });
        return proceedingJoinPoint.proceed();
    } else {
        try {
            logger.debug(
                    "Lock obtained for call [{}] on targetClass [{}] - proceeding with synchronization on thread {}",
                    new Object[] { method.getName(), targetClass.getName(), Thread.currentThread().getId() });
            lock.lock();
            return proceedingJoinPoint.proceed();
        } finally {
            lock.unlock();
            lockService.returnLock(lock);
        }
    }
}

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From source file:com.crossover.trial.weather.metrics.impl.DropwizardMetricsService.java

@Override
public MetricsReport<Meter, HistogramSnapshotDTO> buildReport() {
    Lock read = registryLock.readLock();
    read.lock();//from  ww w  .java 2  s.c  om
    try {
        MetricsReport.Builder<Meter, HistogramSnapshotDTO> builder = new MetricsReport.Builder<Meter, HistogramSnapshotDTO>()
                .withRadiusFrequency(new HistogramSnapshotDTO(registry.histogram("radius"))).withDataSize(
                        dataPointRepository.countTotalMeasurementsInLastTimeWindow(timestamp().minusDays(1)));

        registry.getMeters().entrySet().stream().forEach(entry -> {
            Airport airport = airportRepository.findOne(IATA.valueOf(entry.getKey()));
            if (airport == null)
                registry.remove(entry.getKey());
            else {
                Meter meter = registry.meter(entry.getKey());
                if (meter != null)
                    builder.withAirportMetric(airport, meter);
            }
        });

        return builder.build();
    } finally {
        read.unlock();
    }
}

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