Example usage for java.util Queue add

Introduction

In this page you can find the example usage for java.util Queue add.

Prototype

boolean add(E e);

Source Link

Document

Inserts the specified element into this queue if it is possible to do so immediately without violating capacity restrictions, returning true upon success and throwing an IllegalStateException if no space is currently available.

Usage

From source file:specminers.smartic.MergingBlock.java

public List<State<String>> getNodesByBreadthFirstSearch(Automaton<String> automaton) {
    LinkedList<State<String>> V = new LinkedList<>();
    Queue<State<String>> Q = new LinkedBlockingDeque<>();

    V.add(automaton.getInitialState());//w ww.  j  a  v  a2s .c  o m
    Q.add(automaton.getInitialState());

    while (!Q.isEmpty()) {
        State<String> t = Q.poll();

        for (Step<String> delta : automaton.getDelta().get(t)) {
            State<String> u = delta.getDestination();

            if (!V.contains(u)) {
                V.add(u);
                Q.add(u);
            }
        }
    }

    return V;
}

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From source file:org.callimachusproject.server.helpers.Exchange.java

public Exchange(Request request, Queue<Exchange> queue) throws IOException {
    assert request != null;
    assert queue != null;
    this.request = request;
    this.queue = queue;
    Header expect = request.getFirstHeader("Expect");
    setExpectContinue(expect != null && expect.getValue().equalsIgnoreCase("100-continue"));
    synchronized (queue) {
        queue.add(this);
    }/*from  w  w w .j  av a  2s. com*/
    consumer = new Consumer(request);
}

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From source file:org.opencron.server.service.ExecuteService.java

/**
 * ? ???/*from  w w  w .java  2s. c  o m*/
 */
private boolean executeFlowJob(JobVo job) {
    if (!checkJobPermission(job.getAgentId(), job.getUserId()))
        return false;

    final long groupId = System.nanoTime() + Math.abs(new Random().nextInt());//??Id
    final Queue<JobVo> jobQueue = new LinkedBlockingQueue<JobVo>();
    jobQueue.add(job);
    jobQueue.addAll(job.getChildren());
    RunModel runModel = RunModel.getRunModel(job.getRunModel());
    switch (runModel) {
    case SEQUENCE:
        return executeSequenceJob(groupId, jobQueue);//
    case SAMETIME:
        return executeSameTimeJob(groupId, jobQueue);//
    default:
        return false;
    }
}

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From source file:bwem.map.MapImpl.java

public WalkPosition breadthFirstSearch(final WalkPosition start, final Pred findCond, final Pred visitCond,
        final boolean connect8) {
    if (findCond.isTrue(getData().getMiniTile(start), start, this)) {
        return start;
    }/*from w  w  w. j  a  va2  s . c  o m*/

    final Set<WalkPosition> visited = new TreeSet<>((a, b) -> {
        int result = Integer.compare(a.getX(), b.getX());
        if (result != 0) {
            return result;
        }
        return Integer.compare(a.getY(), b.getY());
    });
    final Queue<WalkPosition> toVisit = new ArrayDeque<>();

    toVisit.add(start);
    visited.add(start);

    final WalkPosition[] dir8 = { new WalkPosition(-1, -1), new WalkPosition(0, -1), new WalkPosition(1, -1),
            new WalkPosition(-1, 0), new WalkPosition(1, 0), new WalkPosition(-1, 1), new WalkPosition(0, 1),
            new WalkPosition(1, 1) };
    final WalkPosition[] dir4 = { new WalkPosition(0, -1), new WalkPosition(-1, 0), new WalkPosition(1, 0),
            new WalkPosition(0, 1) };
    final WalkPosition[] directions = connect8 ? dir8 : dir4;

    while (!toVisit.isEmpty()) {
        final WalkPosition current = toVisit.remove();
        for (final WalkPosition delta : directions) {
            final WalkPosition next = current.add(delta);
            if (getData().getMapData().isValid(next)) {
                final MiniTile miniTile = getData().getMiniTile(next, CheckMode.NO_CHECK);
                if (findCond.isTrue(miniTile, next, this)) {
                    return next;
                }
                if (visitCond.isTrue(miniTile, next, this) && !visited.contains(next)) {
                    toVisit.add(next);
                    visited.add(next);
                }
            }
        }
    }

    //TODO: Are we supposed to return start or not?
    //        bwem_assert(false);
    throw new IllegalStateException();
    //        return start;
}

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From source file:org.apache.camel.component.ibatis.IBatisPollingConsumer.java

/**
 * Polls the database//from w  w  w.j a v  a 2  s  .co m
 */
@Override
protected int poll() throws Exception {
    // must reset for each poll
    shutdownRunningTask = null;
    pendingExchanges = 0;

    // poll data from the database
    IBatisEndpoint endpoint = getEndpoint();
    if (LOG.isTraceEnabled()) {
        LOG.trace("Polling: " + endpoint);
    }
    List<Object> data = CastUtils.cast(endpoint.getProcessingStrategy().poll(this, getEndpoint()));

    // create a list of exchange objects with the data
    Queue<DataHolder> answer = new LinkedList<DataHolder>();
    if (useIterator) {
        for (Object item : data) {
            Exchange exchange = createExchange(item);
            DataHolder holder = new DataHolder();
            holder.exchange = exchange;
            holder.data = item;
            answer.add(holder);
        }
    } else {
        if (!data.isEmpty() || routeEmptyResultSet) {
            Exchange exchange = createExchange(data);
            DataHolder holder = new DataHolder();
            holder.exchange = exchange;
            holder.data = data;
            answer.add(holder);
        }
    }

    // process all the exchanges in this batch
    return processBatch(CastUtils.cast(answer));
}

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From source file:org.geotools.gce.imagemosaic.Utils.java

/**
 * Creates a mosaic for the provided input parameters.
 * /*from ww  w. j a  v  a2s.  c om*/
 * @param location
 *            path to the directory where to gather the elements for the
 *            mosaic.
 * @param indexName
 *            name to give to this mosaic
 * @param wildcard
 *            wildcard to use for walking through files. We are using
 *            commonsIO for this task
 * @param absolutePath
 *            tells the catalogue builder to use absolute paths.
 * @param hints hints to control reader instantiations
 * @return <code>true</code> if everything is right, <code>false</code>if
 *         something bad happens, in which case the reason should be logged
 *         to the logger.
 */
static boolean createMosaic(final String location, final String indexName, final String wildcard,
        final boolean absolutePath, final Hints hints) {

    // create a mosaic index builder and set the relevant elements
    final CatalogBuilderConfiguration configuration = new CatalogBuilderConfiguration();
    configuration.setAbsolute(absolutePath);
    configuration.setHints(hints);
    configuration.setRootMosaicDirectory(location);
    configuration.setIndexingDirectories(Arrays.asList(location));
    configuration.setIndexName(indexName);

    // create the builder
    final CatalogBuilder catalogBuilder = new CatalogBuilder(configuration);
    // this is going to help us with catching exceptions and logging them
    final Queue<Throwable> exceptions = new LinkedList<Throwable>();
    try {

        final CatalogBuilder.ProcessingEventListener listener = new CatalogBuilder.ProcessingEventListener() {

            @Override
            public void exceptionOccurred(ExceptionEvent event) {
                final Throwable t = event.getException();
                exceptions.add(t);
                if (LOGGER.isLoggable(Level.SEVERE))
                    LOGGER.log(Level.SEVERE, t.getLocalizedMessage(), t);

            }

            @Override
            public void getNotification(ProcessingEvent event) {
                if (LOGGER.isLoggable(Level.FINE))
                    LOGGER.fine(event.getMessage());

            }

        };
        catalogBuilder.addProcessingEventListener(listener);
        catalogBuilder.run();
    } catch (Throwable e) {
        LOGGER.log(Level.SEVERE, "Unable to build mosaic", e);
        return false;
    } finally {
        catalogBuilder.dispose();
    }

    // check that nothing bad happened
    if (exceptions.size() > 0)
        return false;
    return true;
}

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From source file:com.googlecode.concurrentlinkedhashmap.MultiThreadedTest.java

@Test(dataProvider = "builder")
public void weightedConcurrency(Builder<Integer, List<Integer>> builder) {
    final ConcurrentLinkedHashMap<Integer, List<Integer>> map = builder.weigher(Weighers.<Integer>list())
            .maximumWeightedCapacity(threads).concurrencyLevel(threads).build();
    final Queue<List<Integer>> values = new ConcurrentLinkedQueue<List<Integer>>();
    for (int i = 1; i <= threads; i++) {
        Integer[] array = new Integer[i];
        Arrays.fill(array, Integer.MIN_VALUE);
        values.add(Arrays.asList(array));
    }//from   w  ww  .ja  v  a  2  s  . c o  m
    executeWithTimeOut(map, new Callable<Long>() {
        @Override
        public Long call() throws Exception {
            return timeTasks(threads, new Runnable() {
                @Override
                public void run() {
                    List<Integer> value = values.poll();
                    for (int i = 0; i < iterations; i++) {
                        map.put(i % 10, value);
                    }
                }
            });
        }
    });
}

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From source file:it.geosolutions.geobatch.actions.ds2ds.Ds2dsAction.java

/**
 * Eventually unpacks compressed files.//from  ww  w  . j a v  a  2 s .  co  m
 *
 * @param fileEvent
 * @return
 * @throws ActionException
 */
private Queue<FileSystemEvent> unpackCompressedFiles(EventObject event) throws ActionException {
    Queue<FileSystemEvent> result = new LinkedList<FileSystemEvent>();

    FileSystemEvent fileEvent = (FileSystemEvent) event;
    if (!fileEvent.getSource().exists()) {
        result.add(fileEvent);
        return result;
    }
    updateTask("Looking for compressed file");
    try {
        String filePath = fileEvent.getSource().getAbsolutePath();
        String uncompressedFolder = Extract.extract(filePath);
        if (!uncompressedFolder.equals(filePath)) {
            updateTask("Compressed file extracted to " + uncompressedFolder);
            Collector c = new Collector(null);
            List<File> fileList = c.collect(new File(uncompressedFolder));

            if (fileList != null) {
                for (File file : fileList) {
                    if (!file.isDirectory()) {
                        result.add(new FileSystemEvent(file, fileEvent.getEventType()));
                    }
                }
            }
        } else {
            // no compressed file, add as is
            updateTask("File is not compressed");
            result.add(fileEvent);
        }
    } catch (Exception e) {
        throw new ActionException(this, e.getMessage());
    }

    return result;
}

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From source file:org.openhab.binding.networkhealth.discovery.NetworkHealthDiscoveryService.java

/**
 * Takes the interfaceIPs and fetches every IP which can be assigned on their network
 * @param networkIPs The IPs which are assigned to the Network Interfaces
 * @return Every single IP which can be assigned on the Networks the computer is connected to
 *//*from  ww  w  .j ava  2  s . c om*/
private Queue<String> getNetworkIPs(TreeSet<String> interfaceIPs) {
    Queue<String> networkIPs = new LinkedBlockingQueue<String>();

    for (Iterator<String> it = interfaceIPs.iterator(); it.hasNext();) {
        try {
            // gets every ip which can be assigned on the given network
            SubnetUtils utils = new SubnetUtils(it.next());
            String[] addresses = utils.getInfo().getAllAddresses();
            for (int i = 0; i < addresses.length; i++) {
                networkIPs.add(addresses[i]);
            }

        } catch (Exception ex) {
        }
    }

    return networkIPs;
}

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From source file:de.mrapp.android.util.view.AbstractViewRecycler.java

/**
 * Adds an unused view to the cache./* w w w.  j  a  va2  s.  co  m*/
 *
 * @param view
 *         The unused view, which should be added to the cache, as an instance of the class
 *         {@link View}. The view may not be null
 * @param viewType
 *         The view type, the unused view corresponds to, as an {@link Integer} value
 */
protected final void addUnusedView(@NonNull final View view, final int viewType) {
    if (useCache) {
        if (unusedViews == null) {
            unusedViews = new SparseArray<>(adapter.getViewTypeCount());
        }

        Queue<View> queue = unusedViews.get(viewType);

        if (queue == null) {
            queue = new LinkedList<>();
            unusedViews.put(viewType, queue);
        }

        queue.add(view);
    }
}

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