Example usage for java.util.concurrent ConcurrentLinkedQueue ConcurrentLinkedQueue

Introduction

In this page you can find the example usage for java.util.concurrent ConcurrentLinkedQueue ConcurrentLinkedQueue.

Prototype

public ConcurrentLinkedQueue()

Source Link

Document

Creates a ConcurrentLinkedQueue that is initially empty.

Usage

From source file:m.c.m.proxyma.context.ProxyFolderBean.java

/**
 * Default constructor for this class it builds a destinationAsString.
 * NOTE: The folder is not ready to work as it is created.
 * Actually, it needs to be configured with at least a valid
 * resource retriver and a valid serializer.
 *
 * @param FolderName the path (and name) of the proxy folder.
 * @param destinationAsString the destinationAsString URI to masquerade
 * @param context the proxyma context where to get logger settings.
 * @throws NullArgumentException if some parameter is null
 * @throws IllegalArgumentException if the folder name or the destinationAsString parameter are invalid or malformed
 * @throws UnsupportedEncodingException if the default encoding charset specified on the configuration is not supported.
 *///from w  ww.  ja  v  a2 s.com
public ProxyFolderBean(String folderName, String destination, ProxymaContext context)
        throws NullArgumentException, IllegalArgumentException, UnsupportedEncodingException {
    log = context.getLogger();
    this.defaultEncoding = context.getDefaultEncoding();

    setFolderName(folderName);
    setDestination(destination);
    this.preprocessors = new ConcurrentLinkedQueue<String>();
    this.transformers = new ConcurrentLinkedQueue<String>();
    this.context = context;

    log.finer("ProxyFolder " + folderName + " for " + destination + "created.");
}

From source file:com.joshlong.esb.springintegration.modules.net.feed.FeedEntryReaderMessageSource.java

public FeedEntryReaderMessageSource() {
    this.receivedEntries = new ConcurrentSkipListSet<SyndEntry>(new MyComparator());
    this.entries = new ConcurrentLinkedQueue<SyndEntry>();
}

From source file:org.apache.streams.kafka.KafkaPersistReader.java

public KafkaPersistReader() {
    Config config = StreamsConfigurator.config.getConfig("kafka");
    this.config = KafkaConfigurator.detectConfiguration(config);
    this.persistQueue = new ConcurrentLinkedQueue<StreamsDatum>();
}

From source file:org.wso2.carbon.event.processor.storm.internal.listener.ConsumingQueuedEventSource.java

public ConsumingQueuedEventSource(StreamDefinition streamDefinition,
        ExecutionPlanConfiguration executionPlanConfiguration) {
    this.tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
    this.streamDefinition = streamDefinition;
    this.owner = executionPlanConfiguration;
    this.eventQueue = new ConcurrentLinkedQueue<Object[]>();
    this.traceEnabled = executionPlanConfiguration.isTracingEnabled();
    this.statisticsEnabled = executionPlanConfiguration.isStatisticsEnabled();
    if (statisticsEnabled) {
        statisticsMonitor = StormProcessorValueHolder.getEventStatisticsService().getEventStatisticMonitor(
                tenantId, StormProcessorConstants.STORM_PROCESSOR, executionPlanConfiguration.getName(),
                streamDefinition.getStreamId());
    }//from   w w  w.j av  a 2s  .  com
    if (traceEnabled) {
        this.tracerPrefix = "TenantId=" + tenantId + " : " + StormProcessorConstants.STORM_PROCESSOR + " : "
                + executionPlanConfiguration.getName() + "," + streamDefinition + ", before processing "
                + System.getProperty("line.separator");
    }
}

From source file:com.joshlong.esb.springintegration.modules.social.twitter.TwitterMessageSource.java

public void afterPropertiesSet() throws Exception {
    logger.debug("after properties set for TwitterMessageSource!!");

    if (twitter == null) {
        Assert.state(!StringUtils.isEmpty(userId));
        Assert.state(!StringUtils.isEmpty(password));

        twitter = new Twitter();
        twitter.setUserId(userId);//from  w w  w .jav  a2  s .co  m
        twitter.setPassword(password);
    } else { // it isnt null, in which case it becomes canonical memory
        setPassword(twitter.getPassword());
        setUserId(twitter.getUserId());
    }

    cachedStatuses = new ConcurrentLinkedQueue<Tweet>();
    lastStatusIdRetreived = -1;
}

From source file:org.apache.hadoop.hive.ql.DriverContext.java

public DriverContext(Context ctx) {
    this.runnable = new ConcurrentLinkedQueue<Task<? extends Serializable>>();
    this.running = new LinkedBlockingQueue<TaskRunner>();
    this.ctx = ctx;
}

From source file:eu.stratosphere.nephele.jobmanager.splitassigner.DefaultInputSplitAssigner.java

@Override
public void registerGroupVertex(final ExecutionGroupVertex groupVertex) {

    final InputSplit[] inputSplits = groupVertex.getInputSplits();

    if (inputSplits == null) {
        return;/*from   w w w .j  a  va  2 s  .  c om*/
    }

    if (inputSplits.length == 0) {
        return;
    }

    final Queue<InputSplit> queue = new ConcurrentLinkedQueue<InputSplit>();
    if (this.splitMap.putIfAbsent(groupVertex, queue) != null) {
        LOG.error("Group vertex " + groupVertex.getName() + " already has a split queue");
    }

    queue.addAll(Arrays.asList(inputSplits));
}

From source file:org.lockss.plugin.AuSearchSet.java

AuSearchSet() {
    aus = new ConcurrentLinkedQueue();
}

From source file:jetbrains.exodus.gc.GarbageCollector.java

public GarbageCollector(@NotNull final EnvironmentImpl env) {
    this.env = env;
    ec = env.getEnvironmentConfig();//  ww  w . ja  v  a 2  s .c o m
    pendingFilesToDelete = new LongHashSet();
    deletionQueue = new ConcurrentLinkedQueue<>();
    utilizationProfile = new UtilizationProfile(env, this);
    cleaner = new BackgroundCleaner(this);
    newFiles = ec.getGcFilesInterval() + 1;
    if (!ec.getGcUseExpirationChecker()) {
        expirationChecker = IExpirationChecker.NONE;
    } else {
        expirationChecker = new IExpirationChecker() {

            @Override
            public boolean expired(@NotNull final Loggable loggable) {
                return utilizationProfile.isExpired(loggable);
            }

            @Override
            public boolean expired(long startAddress, int length) {
                return utilizationProfile.isExpired(startAddress, length);
            }
        };
    }
    openStoresCache = new IntHashMap<>();
    env.getLog().addNewFileListener(new NewFileListener() {
        @Override
        public void fileCreated(long fileAddress) {
            ++newFiles;
            if (!cleaner.isCleaning() && newFiles > ec.getGcFilesInterval() && isTooMuchFreeSpace()) {
                wake();
            }
        }
    });
}

From source file:org.apache.hadoop.mapred.nativetask.buffer.DirectBufferPool.java

public void returnBuffer(ByteBuffer buffer) throws IOException {
    if (null == buffer || !buffer.isDirect()) {
        throw new IOException("the buffer is null or the buffer returned is not direct buffer");
    }//w w w. jav  a  2s .  c o m

    buffer.clear();
    int capacity = buffer.capacity();
    Queue<WeakReference<ByteBuffer>> list = bufferMap.get(capacity);
    if (null == list) {
        list = new ConcurrentLinkedQueue<WeakReference<ByteBuffer>>();
        Queue<WeakReference<ByteBuffer>> prev = bufferMap.putIfAbsent(capacity, list);
        if (prev != null) {
            list = prev;
        }
    }
    list.add(new WeakReference<ByteBuffer>(buffer));
}