Example usage for java.util Queue remove

Introduction

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

Prototype

boolean remove(Object o);

Source Link

Document

Removes a single instance of the specified element from this collection, if it is present (optional operation).

Usage

From source file:com.clustercontrol.jobmanagement.util.JobMultiplicityCache.java

/**
 * waitQueue??//w w  w. j a v a2 s.c  o  m
 *
 * ???????????????
 * waitQueue?????
 *
 * ??????waitQueue??????
 * ????????????
 *
 * @param pk
 */
public static void removeWait(JobSessionNodeEntityPK pk) {
    try {
        _lock.writeLock();

        HashMap<String, Queue<JobSessionNodeEntityPK>> waitingCache = getWaitingCache();

        Queue<JobSessionNodeEntityPK> waitingQueue = waitingCache.get(pk.getFacilityId());
        if (waitingQueue != null) {
            if (waitingQueue.remove(pk)) {
                m_log.info("removeWait " + pk);
                storeWaitingCache(waitingCache);
            }
        }
    } finally {
        _lock.writeUnlock();
    }
}

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From source file:com.clustercontrol.jobmanagement.util.JobMultiplicityCache.java

/**
 * status?100(StatusConstant.TYPE_RUNNING)????????????
 *
 * ???runningQueue???????/*from   w w w .  j  av  a2s .  co m*/
 * ?????????????kick
 * @param pk
 */
public static boolean fromRunning(JobSessionNodeEntityPK pk) {
    m_log.info("fromRunning " + pk);

    String facilityId = pk.getFacilityId();

    try {
        _lock.writeLock();

        HashMap<String, Queue<JobSessionNodeEntityPK>> runningCache = getRunningCache();

        Queue<JobSessionNodeEntityPK> runningQueue = runningCache.get(facilityId);
        if (runningQueue == null) {
            m_log.warn("fromRunning " + pk);
            return false;
        }

        if (runningQueue.remove(pk)) { //// runningQueue?
            storeRunningCache(runningCache);
        } else {
            // ????????
            // (??)??????????
            m_log.info("fromRunning(). from not-running to stop : " + pk);
        }

        if (m_log.isDebugEnabled()) {
            for (JobSessionNodeEntityPK q : runningQueue) {
                m_log.debug("fromRunning runningQueue : " + q);
            }
        }

        // ?facilityID?????
        kick(facilityId);
    } finally {
        _lock.writeUnlock();
    }
    return true;
}

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From source file:com.sishuok.chapter3.web.controller.chat.MsgPublisher.java

public DeferredResult<String> startAsync(final String username) {
    final DeferredResult<String> result = new DeferredResult<String>(30L * 1000, null);

    final Runnable removeDeferredResultRunnable = new Runnable() {
        @Override//from ww w . java 2 s .  c  o  m
        public void run() {
            Queue<DeferredResult<String>> queue = usernameToDeferredResultMap.get(username);
            if (queue != null) {
                queue.remove(result);
            }
        }
    };
    result.onCompletion(removeDeferredResultRunnable);
    result.onTimeout(removeDeferredResultRunnable);

    //????
    Queue<DeferredResult<String>> queue = usernameToDeferredResultMap.get(username);
    if (queue == null) {
        queue = new ConcurrentLinkedDeque();
        usernameToDeferredResultMap.put(username, queue);
    }
    queue.add(result);

    return result;
}

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From source file:asia.stampy.server.listener.subscription.AbstractAcknowledgementListenerAndInterceptor.java

private void clearMessageAck(String messageId, HostPort hostPort) {
    Queue<String> ids = messages.get(hostPort);
    if (ids == null)
        return;//  ww w. j ava2s  .c om

    ids.remove(messageId);
}

---

From source file:com.github.wolfdogs.kemono.util.event.RootEventManager.java

private void removeHandler(HandlerEntry entry) {
    if (entry == null)
        return;/*  w w  w.j  av a2 s  . com*/

    Class<? extends Event> type = entry.getType();
    Object relatedObject = entry.getRelatedObject();

    Map<Object, Queue<HandlerEntry>> objectEntriesMap = handlerEntryContainersMap.get(type);
    if (objectEntriesMap == null)
        return;

    Queue<HandlerEntry> entries = objectEntriesMap.get(relatedObject);
    if (entries == null)
        return;

    entries.remove(entry);

    if (entries.size() == 0)
        objectEntriesMap.remove(relatedObject);
    if (objectEntriesMap.size() == 0)
        handlerEntryContainersMap.remove(type);
}

---

From source file:asia.stampy.server.listener.subscription.AbstractAcknowledgementListenerAndInterceptor.java

private void startTimerTask(final HostPort hostPort, final String ack) {
    TimerTask task = new TimerTask() {

        @Override/*from   w  ww  . jav a  2 s. c o  m*/
        public void run() {
            Queue<String> q = messages.get(hostPort);
            if (q == null || !q.contains(ack))
                return;

            getHandler().noAcknowledgementReceived(ack);
            q.remove(ack);
        }
    };

    ackTimer.schedule(task, getAckTimeoutMillis());
}

---

From source file:com.taobao.metamorphosis.gregor.slave.OrderedThreadPoolExecutor.java

/**
 * {@inheritDoc}//from w  w  w  .j a  va2s.com
 */
@Override
public boolean remove(final Runnable task) {
    this.checkTaskType(task);
    final IoEvent event = (IoEvent) task;
    final IoCatalog ioCatalog = event.getIoCatalog();
    final TasksQueue sessionTasksQueue = (TasksQueue) ioCatalog.connection
            .getAttribute(this.getCatalog(ioCatalog));
    final Queue<Runnable> tasksQueue = sessionTasksQueue.tasksQueue;
    if (sessionTasksQueue == null) {
        return false;
    }

    boolean removed;

    synchronized (tasksQueue) {
        removed = tasksQueue.remove(task);
    }

    return removed;
}

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From source file:cosmos.sql.TestSql.java

@Test
public void testNoLimit() throws SQLException {
    loadDriverClass();//  ww w. j a  va  2  s.c o m
    Connection connection = null;
    Statement statement = null;
    try {
        Properties info = new Properties();
        info.put("url", JDBC_URL);
        info.put("user", USER);
        info.put("password", PASSWORD);
        connection = DriverManager.getConnection("jdbc:accumulo:cosmos//localhost", info);
        statement = connection.createStatement();
        final ResultSet resultSet = statement.executeQuery(
                "select \"PAGE_ID\" from \"" + CosmosDriver.COSMOS + "\".\"" + meataData.uuid() + "\"");

        final ResultSetMetaData metaData = resultSet.getMetaData();
        final int columnCount = metaData.getColumnCount();

        assertEquals(columnCount, 1);

        int resultsFound = 0;
        SortedSet<String> sets = Sets.newTreeSet();
        for (int i = 0; i < 10; i++) {
            sets.add(Integer.valueOf(i).toString());
        }
        Queue<String> values = Lists.newLinkedList(sets);

        while (resultSet.next()) {
            assertEquals(metaData.getColumnName(1), "PAGE_ID");
            @SuppressWarnings("unchecked")
            List<Entry<Column, RecordValue<?>>> sValues = (List<Entry<Column, RecordValue<?>>>) resultSet
                    .getObject("PAGE_ID");
            assertEquals(sValues.size(), 1);
            RecordValue<?> onlyValue = sValues.iterator().next().getValue();
            assertEquals(onlyValue.visibility().toString(), "[en]");
            values.remove(onlyValue.value());
            resultsFound++;

        }

        assertEquals(resultsFound, 10);
        assertEquals(values.size(), 0);
    } finally {
        close(connection, statement);
    }
}

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From source file:com.netflix.curator.framework.recipes.locks.TestReaper.java

@Test
public void testSparseUseNoReap() throws Exception {
    final int THRESHOLD = 3000;

    Timing timing = new Timing();
    Reaper reaper = null;//w ww .  j av a 2s .  c om
    Future<Void> watcher = null;
    CuratorFramework client = makeClient(timing, null);
    try {
        client.start();
        client.create().creatingParentsIfNeeded().forPath("/one/two/three");

        Assert.assertNotNull(client.checkExists().forPath("/one/two/three"));

        final Queue<Reaper.PathHolder> holders = new ConcurrentLinkedQueue<Reaper.PathHolder>();
        final ExecutorService pool = Executors.newCachedThreadPool();
        ScheduledExecutorService service = new ScheduledThreadPoolExecutor(1) {
            @Override
            public ScheduledFuture<?> schedule(Runnable command, long delay, TimeUnit unit) {
                final Reaper.PathHolder pathHolder = (Reaper.PathHolder) command;
                holders.add(pathHolder);
                final ScheduledFuture<?> f = super.schedule(command, delay, unit);
                pool.submit(new Callable<Void>() {
                    @Override
                    public Void call() throws Exception {
                        f.get();
                        holders.remove(pathHolder);
                        return null;
                    }
                });
                return f;
            }
        };

        reaper = new Reaper(client, service, THRESHOLD);
        reaper.start();
        reaper.addPath("/one/two/three");

        long start = System.currentTimeMillis();
        boolean emptyCountIsCorrect = false;
        while (((System.currentTimeMillis() - start) < timing.forWaiting().milliseconds())
                && !emptyCountIsCorrect) // need to loop as the Holder can go in/out of the Reaper's DelayQueue
        {
            for (Reaper.PathHolder holder : holders) {
                if (holder.path.endsWith("/one/two/three")) {
                    emptyCountIsCorrect = (holder.emptyCount > 0);
                    break;
                }
            }
            Thread.sleep(1);
        }
        Assert.assertTrue(emptyCountIsCorrect);

        client.create().forPath("/one/two/three/foo");

        Thread.sleep(2 * (THRESHOLD / Reaper.EMPTY_COUNT_THRESHOLD));
        Assert.assertNotNull(client.checkExists().forPath("/one/two/three"));
        client.delete().forPath("/one/two/three/foo");

        Thread.sleep(THRESHOLD);
        timing.sleepABit();

        Assert.assertNull(client.checkExists().forPath("/one/two/three"));
    } finally {
        if (watcher != null) {
            watcher.cancel(true);
        }
        IOUtils.closeQuietly(reaper);
        IOUtils.closeQuietly(client);
    }
}

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From source file:com.streamsets.pipeline.lib.jdbc.multithread.TestMultithreadedTableProvider.java

@Test
public void removeTableNotPartitioned() throws InterruptedException, StageException {
    String schema = "db";
    String table1Name = "table1";
    String table2Name = "table2";
    String offsetCol = null;//from w w w . ja  v  a 2 s . c om
    final String partitionSize = null;
    int maxActivePartitions = 0;
    int threadNumber = 0;
    int numThreads = 1;

    TableContext table1 = createTableContext(schema, table1Name, offsetCol, partitionSize, maxActivePartitions,
            true);
    TableContext table2 = createTableContext(schema, table2Name, offsetCol, partitionSize, maxActivePartitions,
            true);
    Map<String, TableContext> tableContextMap = new HashMap<>();

    tableContextMap.put(table1.getQualifiedName(), table1);
    tableContextMap.put(table2.getQualifiedName(), table2);
    Queue<String> sortedTableOrder = new LinkedList<>();
    sortedTableOrder.add(table1.getQualifiedName());
    sortedTableOrder.add(table2.getQualifiedName());

    Map threadNumToMaxTableSlots = new HashMap<>();

    BatchTableStrategy batchTableStrategy = BatchTableStrategy.PROCESS_ALL_AVAILABLE_ROWS_FROM_TABLE;
    MultithreadedTableProvider provider = new MultithreadedTableProvider(tableContextMap, sortedTableOrder,
            threadNumToMaxTableSlots, numThreads, batchTableStrategy);

    TableRuntimeContext tableRuntimeContext = provider.nextTable(threadNumber);
    Assert.equals(table1Name, tableRuntimeContext.getSourceTableContext().getTableName());
    provider.releaseOwnedTable(tableRuntimeContext, threadNumber);

    tableRuntimeContext = provider.nextTable(threadNumber);
    Assert.equals(table2Name, tableRuntimeContext.getSourceTableContext().getTableName());
    provider.releaseOwnedTable(tableRuntimeContext, threadNumber);

    tableContextMap.remove(table2.getQualifiedName());
    sortedTableOrder.remove(table2.getQualifiedName());
    //Set removed table lists
    provider.setTableContextMap(tableContextMap, sortedTableOrder);

    tableRuntimeContext = provider.nextTable(threadNumber);

    Assert.equals(table1Name, tableRuntimeContext.getSourceTableContext().getTableName());
    provider.releaseOwnedTable(tableRuntimeContext, threadNumber);

    tableRuntimeContext = provider.nextTable(threadNumber);
    Assert.equals(table1Name, tableRuntimeContext.getSourceTableContext().getTableName());
    provider.releaseOwnedTable(tableRuntimeContext, threadNumber);
}

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