Example usage for java.lang Thread isAlive

List of usage examples for java.lang Thread isAlive

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Introduction

In this page you can find the example usage for java.lang Thread isAlive.

Prototype

public final native boolean isAlive();

Source Link

Document

Tests if this thread is alive.

Usage

From source file:com.espertech.esper.dataflow.core.EPDataFlowInstanceImpl.java

public void cancel() {
    if (state == EPDataFlowState.COMPLETE || state == EPDataFlowState.CANCELLED) {
        return;//from ww  w. j  ava2s. c  o  m
    }
    if (state == EPDataFlowState.INSTANTIATED) {
        setState(EPDataFlowState.CANCELLED);
        sourceRunnables.clear();
        callOperatorClose();
        return;
    }

    // handle async start
    if (threads != null) {
        for (GraphSourceRunnable runnable : sourceRunnables) {
            runnable.shutdown();
        }
        for (Thread thread : threads) {
            if (thread.isAlive() && !thread.isInterrupted()) {
                thread.interrupt();
            }
        }
    }
    // handle run
    else {
        if (runCurrentThread != null) {
            runCurrentThread.interrupt();
        }
        runCurrentThread = null;
    }

    callOperatorClose();

    setState(EPDataFlowState.CANCELLED);
    sourceRunnables.clear();
}

From source file:org.nognog.jmatcher.server.JMatcherDaemonTest.java

/**
 * Test method for {@link org.nognog.jmatcher.JMatcherDaemon#start()}.
 * /* www .  jav a 2 s.c o m*/
 * @throws Exception
 */
@Test
public final void testStartStop() throws Exception {
    final JMatcherDaemon daemon = new JMatcherDaemon();
    try {
        daemon.start();
        fail();
    } catch (NullPointerException e) {
        // ok
    }
    daemon.init(null);
    daemon.start();
    final Thread tcpServerThread = Deencapsulation.getField(daemon, "tcpServerThread"); //$NON-NLS-1$
    final Thread udpServerThread = Deencapsulation.getField(daemon, "udpServerThread"); //$NON-NLS-1$
    assertThat(tcpServerThread.isAlive(), is(true));
    assertThat(udpServerThread.isAlive(), is(true));
    assertThat(daemon.isStopping(), is(false));
    daemon.stop();
    assertThat(daemon.isStopping(), is(true));
    Thread.sleep(3000);
    assertThat(tcpServerThread.isAlive(), is(false));
    assertThat(udpServerThread.isAlive(), is(false));
    daemon.destroy();
}

From source file:org.eclipse.smila.connectivity.framework.crawler.jdbc.test.AbstractDataEnabledJdbcCrawlerTestCase.java

/**
 * tearDown()-Implementation. Waits for the Producing-Thread of the Crawler to die in order to prevent other test
 * cases from starting (as they would causes issues when trying to re-setup the database fixture themselves) and
 * finally closes the crawler. {@inheritDoc}
 * /*from w w  w  . jav  a  2 s .  c  o  m*/
 * @see junit.framework.TestCase#tearDown()
 */
@Override
protected void tearDown() throws Exception {

    _log.debug("Waiting for Crawling Thread to terminate ...");
    final Thread thread = _crawler.getProducerThread();
    if (thread != null && thread.isAlive()) {
        thread.join();
    }
    _log.debug("Crawling Thread terminated");
    _crawler.close();
    _log.debug("Crawler closed");
    _crawler = null;
    _log.debug("Crawler object dereferenced");

}

From source file:org.ngrinder.common.util.ThreadUtilsTest.java

/**
 * Test method for//  ww w.j  av  a 2 s  .com
 * {@link ThreadUtils#stopQuietly(java.lang.Thread, java.lang.String)}.
 */
@Test
public void testStopQuietly() {
    Thread newThread = new Thread(new Runnable() {
        @Override
        public void run() {
            int i = 10;
            while (i > 0) {
                ThreadUtils.sleep(200);
            }
        }
    });
    newThread.start();
    ThreadUtils.sleep(500);
    assertThat(newThread.isAlive()).isTrue();
    ThreadUtils.stopQuietly(newThread, "STOPPED!");
    ThreadUtils.sleep(1000);
    assertThat(newThread.isAlive()).isFalse();
}

From source file:org.apache.fop.threading.FOPTestbed.java

/**
 * Starts the stress test./*ww  w.ja va2s . co  m*/
 */
public void doStressTest() {
    getLogger().info("Starting stress test...");
    long start = System.currentTimeMillis();
    this.counter = 0;

    //Initialize threads
    ThreadGroup workerGroup = new ThreadGroup("FOP workers");
    List threadList = new java.util.LinkedList();
    for (int ti = 0; ti < this.threads; ti++) {
        TaskRunner runner = new TaskRunner();
        ContainerUtil.enableLogging(runner, getLogger());
        Thread thread = new Thread(workerGroup, runner, "Worker- " + ti);
        threadList.add(thread);
    }

    //Start threads
    Iterator i = threadList.iterator();
    while (i.hasNext()) {
        ((Thread) i.next()).start();
    }

    //Wait for threads to end
    while (threadList.size() > 0) {
        Thread t = (Thread) threadList.get(0);
        if (!t.isAlive()) {
            threadList.remove(0);
            continue;
        }
        try {
            Thread.sleep(100);
        } catch (InterruptedException ie) {
            //ignore
        }
    }
    long duration = System.currentTimeMillis() - start;

    report(duration);
}

From source file:ubic.gemma.core.security.audit.AuditAdviceTest.java

@SuppressWarnings("Duplicates") // Not in this project
@Test// w w w.  jav a2 s . com
public void testAuditFindOrCreateConcurrentTorture() throws Exception {
    int numThreads = 14; // too high and we run out of connections, which is not what we're testing.
    final int numExperimentsPerThread = 5;
    final int numUpdates = 10;
    final Random random = new Random();
    final AtomicInteger c = new AtomicInteger(0);
    final AtomicBoolean failed = new AtomicBoolean(false);
    Collection<Thread> threads = new HashSet<>();
    for (int i = 0; i < numThreads; i++) {

        Thread.sleep(random.nextInt(100));

        Thread k = new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    for (int j = 0; j < numExperimentsPerThread; j++) {
                        log.debug("Starting experiment " + j);
                        ExpressionExperiment ee = ExpressionExperiment.Factory.newInstance();
                        ee.setDescription("From test");
                        ee.setShortName(RandomStringUtils.randomAlphabetic(20));
                        ee.setName(RandomStringUtils.randomAlphabetic(20));
                        ee.setTaxon(taxonService.load(1L));
                        ee = expressionExperimentService.findOrCreate(ee);

                        assertNotNull(ee.getAuditTrail());
                        assertEquals(1, ee.getAuditTrail().getEvents().size());
                        assertNotNull(ee.getCurationDetails());
                        assertNotNull(ee.getCurationDetails().getId());
                        assertNotNull(ee.getCurationDetails().getLastUpdated());
                        assertNotNull(ee.getAuditTrail().getCreationEvent().getId());

                        for (int q = 0; q < numUpdates; q++) {
                            Thread.sleep(random.nextInt(5));
                            log.debug("Update: experiment " + j);
                            expressionExperimentService.update(ee);
                            c.incrementAndGet();
                        }
                        log.debug("Done with experiment " + j);
                    }
                } catch (Exception e) {
                    failed.set(true);
                    log.error("!!!!!!!!!!!!!!!!!!!!!! FAILED: " + e.getMessage());
                    log.debug(e, e);
                    throw new RuntimeException(e);
                }
                log.debug("Thread done.");
            }
        });
        threads.add(k);

        k.start();
    }

    int waits = 0;
    int maxWaits = 20;
    int expectedEventCount = numThreads * numExperimentsPerThread * numUpdates;
    while (c.get() < expectedEventCount && !failed.get()) {
        Thread.sleep(1000);
        log.info("Waiting ...");
        if (++waits > maxWaits) {
            for (Thread t : threads) {
                if (t.isAlive())
                    t.interrupt();
            }
            fail("Multithreaded failure: timed out.");
        }
    }

    log.debug(" &&&&& DONE &&&&&");

    for (Thread thread : threads) {
        if (thread.isAlive())
            thread.interrupt();
    }

    if (failed.get() || c.get() != expectedEventCount) {
        fail("Multithreaded loading failure: check logs for failure to recover from deadlock?");
    } else {
        log.info("TORTURE TEST PASSED!");
    }

}

From source file:org.hyperic.hq.measurement.agent.server.MeasurementCommandsServer.java

private void interruptThread(Thread t) throws InterruptedException {
    if (t.isAlive()) {
        t.interrupt();//  w  w w.j  a va 2s  . co m
        t.join(THREAD_JOIN_WAIT);

        if (t.isAlive()) {
            this.log.warn(t.getName() + " did not die within the " + "timeout period.  Killing it");
            t.stop();
        }
    }
}

From source file:org.apache.hadoop.hbase.TestMetaTableLocator.java

private void startWaitAliveThenWaitItLives(final Thread t, final int ms) {
    t.start();//from w ww .  j  a  v a  2 s .  c o m
    while (!t.isAlive()) {
        // Wait
    }
    // Wait one second.
    Threads.sleep(ms);
    assertTrue("Assert " + t.getName() + " still waiting", t.isAlive());
}

From source file:org.apache.hadoop.mapreduce.v2.app.commit.CommitterEventHandler.java

private synchronized void cancelJobCommit() {
    Thread threadCommitting = jobCommitThread;
    if (threadCommitting != null && threadCommitting.isAlive()) {
        LOG.info("Cancelling commit");
        threadCommitting.interrupt();/*from  ww  w  .j  a v a 2 s . c o m*/

        // wait up to configured timeout for commit thread to finish
        long now = context.getClock().getTime();
        long timeoutTimestamp = now + commitThreadCancelTimeoutMs;
        try {
            while (jobCommitThread == threadCommitting && now > timeoutTimestamp) {
                wait(now - timeoutTimestamp);
                now = context.getClock().getTime();
            }
        } catch (InterruptedException e) {
        }
    }
}

From source file:net.bpelunit.framework.control.run.TestCaseRunner.java

private void interruptAllThreads(final List<Thread> threads) {
    fLogger.debug("Trying to interrupt all threads...");
    for (Thread t : threads) {
        if (t.isAlive()) {
            t.interrupt();/*from ww  w.  j  a  va 2  s  .  co  m*/
        }
    }
    fLogger.debug("All threads interrupted. Waiting for threads...");
}