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:org.mule.util.queue.DualRandomAccessFileQueueStoreDelegate.java

@Override
public synchronized void doClear() {
    Lock lock = filesLock.readLock();
    lock.lock();
    try {/*from  w w w . j  a v a  2 s  . c o  m*/
        randomAccessFileQueueStore1.clear();
        randomAccessFileQueueStore2.clear();
    } finally {
        lock.unlock();
    }
}

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

private void delete() {
    Lock lock = filesLock.writeLock();
    lock.lock();
    try {/* w w  w . j a  va 2s.  c o  m*/
        randomAccessFileQueueStore1.delete();
        randomAccessFileQueueStore2.delete();
        queueControlDataFile.delete();
    } 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();
    try {/*from ww  w  .  jav  a  2s  . com*/
        for (Serializable item : items) {
            add(item);
        }
    } finally {
        lock.unlock();
    }
    return true;
}

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

/**
 * {@inheritDoc}//from  w  ww  . ja va2 s.  c  o m
 */
@Override
public void dispose() {
    Lock lock = filesLock.writeLock();
    lock.lock();
    try {
        doClose();
        delete();
    } finally {
        lock.unlock();
    }
}

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

@Override
public boolean contains(Serializable value) {
    Lock lock = filesLock.readLock();
    lock.lock();
    try {/*from  w w w.  j a va  2 s. c om*/
        final RawDataSelector dataSelector = createDataSelector(value);
        if (!randomAccessFileQueueStore1.contains(dataSelector)) {
            return randomAccessFileQueueStore2.contains(dataSelector);
        }
    } finally {
        lock.unlock();
    }
    return true;
}

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

@Override
protected Serializable getFirst() throws InterruptedException {
    if (isEmpty()) {
        return null;
    }/*from  w w w.j a v a 2s  .  c  o m*/
    Lock lock = filesLock.readLock();
    lock.lock();
    byte[] bytes;
    try {
        if (readFile.isEmpty()) {
            readFile.clear();
            switchReadFile();
        }
        bytes = readFile.getFirst();
    } finally {
        lock.unlock();
    }
    return deserialize(bytes);
}

From source file:net.gbmb.collector.RecordController.java

private void addRecord(String cid, CollectionRecord record) throws CollectionStateException {
    Lock lock = hazelcast.getLock(cid);
    lock.lock();
    try {//  ww w . ja  va2 s.  c om
        Collection collection = collectionMap.get(cid);
        if (collection == null) {
            throw new CollectionStateException("Collection not existing");
        } else if (collection.getState() != CollectionState.COLLECTING) {
            throw new CollectionStateException(collection.getState(), "Collection not in collecting state");
        } else {
            collectionRecords.put(cid, record);
        }
    } finally {
        lock.unlock();
    }
}

From source file:org.jasig.maven.notice.LicenseLookupHelper.java

protected LicenseLookup loadLicenseLookup(Unmarshaller unmarshaller, String licenseLookupFile,
        URL licenseLookupUrl, Lock lock, boolean create) throws MojoFailureException {
    final String licenseLookupKey = licenseLookupUrl.toString();

    lock.lock();
    try {/*from  ww  w  .  j  a v  a 2 s .  c  om*/
        //Look in the cache to see if the lookup file has already been parsed
        LicenseLookup licenseLookup = LICENSE_LOOKUP_CACHE.get(licenseLookupKey);
        if (licenseLookup != null) {
            logger.info("Loading license lookup mappings from '" + licenseLookupUrl + "' (cached)");
            return licenseLookup;
        }

        //Cache miss, check if we should parse the file, return null if not
        if (!create) {
            return null;
        }

        logger.info("Loading license lookup mappings from '" + licenseLookupUrl + "'");
        InputStream lookupStream = null;
        try {
            lookupStream = licenseLookupUrl.openStream();
            licenseLookup = (LicenseLookup) unmarshaller.unmarshal(lookupStream);
            LICENSE_LOOKUP_CACHE.put(licenseLookupKey, licenseLookup);
            return licenseLookup;
        } catch (IOException e) {
            throw new MojoFailureException(
                    "Failed to read '" + licenseLookupFile + "' from '" + licenseLookupUrl + "'", e);
        } catch (JAXBException e) {
            throw new MojoFailureException(
                    "Failed to parse '" + licenseLookupFile + "' from '" + licenseLookupUrl + "'", e);
        } finally {
            IOUtils.closeQuietly(lookupStream);
        }
    } finally {
        lock.unlock();
    }
}

From source file:net.gbmb.collector.RecordController.java

@RequestMapping(value = "/records/{cid}/end", method = RequestMethod.PUT, produces = MediaType.APPLICATION_JSON_VALUE)
public void endCollection(final @PathVariable("cid") String cid) throws CollectionStateException {
    Lock lock = hazelcast.getLock(cid);
    lock.lock();
    try {/*from   w  w  w .j  a  va2 s  .co m*/
        Collection collection = collectionMap.get(cid);
        if (collection == null) {
            // not existing collection
            throw new CollectionStateException("Collection not existing");
        } else if (collection.getState() == CollectionState.ENDED) {
            throw new CollectionStateException("Collection already ended");
        }
        // mark collection ended
        markCollectionEnded(collection);
    } finally {
        lock.unlock();
    }
    // post treatment on collection: push
    // done outside of lock
    pushQueue.offer(cid);
}

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

private void switchWriteFileIfFull() {
    if (writeFile.getLength() >= MAXIMUM_QUEUE_FILE_SIZE_IN_BYTES) {
        Lock lock = filesLock.writeLock();
        lock.lock();
        try {/*from  w  w w .  j  a  v a 2 s .  c o m*/
            if (writeFile.getLength() >= MAXIMUM_QUEUE_FILE_SIZE_IN_BYTES) {
                if (randomAccessFileQueueStore1.getLength() >= MAXIMUM_QUEUE_FILE_SIZE_IN_BYTES
                        && randomAccessFileQueueStore2.getLength() >= MAXIMUM_QUEUE_FILE_SIZE_IN_BYTES) {
                    return;
                }
                if (logger.isDebugEnabled()) {
                    logger.debug(
                            "switching write file. Random 1 size: " + randomAccessFileQueueStore1.getLength()
                                    + " , Random 2 size: " + randomAccessFileQueueStore2.getLength());
                }
                writeFile = (writeFile == randomAccessFileQueueStore1 ? randomAccessFileQueueStore2
                        : randomAccessFileQueueStore1);
                queueControlDataFile.writeControlData(writeFile.getFile(), readFile.getFile());
            }
        } finally {
            lock.unlock();
        }
    }
}