Example usage for java.lang Thread yield

Introduction

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

Prototype

public static native void yield();

Source Link

Document

A hint to the scheduler that the current thread is willing to yield its current use of a processor.

Usage

From source file:org.artifactory.maven.index.RepoIndexer.java

@Override
public void artifactDiscovered(ArtifactContext ac) {
    if (log.isTraceEnabled()) {
        log.trace("Artifact discovered: '{}'", ac.getArtifactInfo().getUinfo());
    }//ww w.  j a  va 2s.  co m
    if (TaskUtils.pauseOrBreak()) {
        throw new TaskInterruptedException();
    }
    //Be nice with other threads
    Thread.yield();
}

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From source file:com.vinay.simpleadserver.cache.AdServerInMemoryCache.java

/**
 * cleanup() method is periodically called to remove key/value pairs that
 * have expired from the cache.// w w  w.  j  a va 2  s.c o  m
 */
@SuppressWarnings("unchecked")
public void cleanup() {

    long now = System.currentTimeMillis();
    ArrayList<K> deleteKey = null;

    synchronized (adServerCacheMap) {
        MapIterator itr = adServerCacheMap.mapIterator();

        deleteKey = new ArrayList<>((adServerCacheMap.size() / 2) + 1);
        K key = null;
        AdServerCacheObject c = null;

        while (itr.hasNext()) {
            key = (K) itr.next();
            c = (AdServerCacheObject) itr.getValue();

            if (c != null && (now > (c.timeToLive + c.creationTime))) {
                deleteKey.add(key);
            }
        }
    }

    for (K key : deleteKey) {
        synchronized (adServerCacheMap) {
            adServerCacheMap.remove(key);
        }

        Thread.yield();
    }
}

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From source file:org.apache.synapse.transport.mail.MailEchoRawXMLTest.java

public void testRoundTripPOX() throws Exception {

    String msgId = UUIDGenerator.getUUID();

    Session session = Session.getInstance(props, new Authenticator() {
        public PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication("synapse.test.1", "mailpassword");
        }/*from w  w  w.j a  v a  2s.c  om*/
    });
    session.setDebug(log.isTraceEnabled());

    WSMimeMessage msg = new WSMimeMessage(session);
    msg.setFrom(new InternetAddress("synapse.test.0@gmail.com"));
    msg.setReplyTo(InternetAddress.parse("synapse.test.0@gmail.com"));
    InternetAddress[] address = { new InternetAddress("synapse.test.6@gmail.com") };
    msg.setRecipients(Message.RecipientType.TO, address);
    msg.setSubject("POX Roundtrip");
    msg.setHeader(BaseConstants.SOAPACTION, Constants.AXIS2_NAMESPACE_URI + "/echoOMElement");
    msg.setSentDate(new Date());
    msg.setHeader(MailConstants.MAIL_HEADER_MESSAGE_ID, msgId);
    msg.setHeader(MailConstants.MAIL_HEADER_X_MESSAGE_ID, msgId);
    msg.setText(POX_MESSAGE);
    Transport.send(msg);

    Thread.yield();
    Thread.sleep(1000 * 10);

    Object reply = null;
    boolean replyNotFound = true;
    int retryCount = 3;
    while (replyNotFound) {
        log.debug("Checking for response ... with MessageID : " + msgId);
        reply = getMessage(msgId);
        if (reply != null) {
            replyNotFound = false;
        } else {
            if (retryCount-- > 0) {
                Thread.sleep(10000);
            } else {
                break;
            }
        }
    }

    if (reply != null && reply instanceof String) {
        log.debug("Result Body : " + reply);
        XMLStreamReader reader = StAXUtils.createXMLStreamReader(new StringReader((String) reply));
        OMElement res = new StAXOMBuilder(reader).getDocumentElement();
        if (res != null) {
            AXIOMXPath xpath = new AXIOMXPath("//my:myValue");
            xpath.addNamespace("my", "http://localhost/axis2/services/EchoXMLService");
            Object result = xpath.evaluate(res);
            if (result != null && result instanceof OMElement) {
                assertEquals("omTextValue", ((OMElement) result).getText());
            }
        }
    } else {
        fail("Did not receive the reply mail");
    }
}

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From source file:com.callidusrobotics.swing.SwingConsole.java

@Override
@SuppressWarnings("PMD.NullAssignment")
public char getKeyPress() {
    lastKeyPressed = null;// ww w. j  a  v a 2s  .c o m
    while (lastKeyPressed == null) {
        Thread.yield();
    }

    if (lastKeyPressed.getKeyChar() == KeyEvent.CHAR_UNDEFINED) {
        return (char) lastKeyPressed.getKeyCode();
    }

    return lastKeyPressed.getKeyChar();
}

---

From source file:com.byteatebit.nbserver.simple.SelectorTask.java

@Override
public void run() {
    long lastTaskTimeoutCheck = System.currentTimeMillis();
    while (shouldRun.get()) {
        // check for tasks without any activity in the
        // max time allowed
        if (System.currentTimeMillis() - lastTaskTimeoutCheck >= ioTaskTimeoutCheckPeriodMs) {
            handleTimedOutTasks();/*ww w  .  j  av  a2 s. c  om*/
            lastTaskTimeoutCheck = System.currentTimeMillis();
        }
        // select tasks for which the underlying channel is
        // ready for the appropriate IO operations
        try {
            if (selectorTimeoutMs < 1) {
                int numReadyKeys = selector.selectNow();
                if (numReadyKeys == 0)
                    Thread.yield();
            } else {
                selector.select(selectorTimeoutMs);
            }
        } catch (ClosedSelectorException e) {
            LOG.error("selector closed, shutting down selector task", e);
            running = false;
        } catch (Exception e) {
            LOG.error("Exception thrown while on selector.select call", e);
        }
        // execute selected tasks
        executeIoTasksOnSelectedKeys();
    }
    try {
        selector.close();
    } catch (Exception e) {
        LOG.error("Selector threw exception on close", e);
    }
    this.stopped = true;
}

---

From source file:com.aptana.webserver.internal.core.builtin.LocalWebServer.java

private void startServer(final InetAddress host, final int port) {
    updateState(State.STARTING);// w  w w.ja  v a  2s  .  c o m
    thread = new Thread() {
        @Override
        public void run() {
            runServer(new InetSocketAddress(host, port),
                    new BasicAsyncRequestHandler(new LocalWebServerHttpRequestHandler(LocalWebServer.this)));
        }
    };
    thread.setDaemon(true);
    thread.start();
    Thread.yield();
    long startTime = System.currentTimeMillis();
    while (thread.isAlive() && (System.currentTimeMillis() - startTime) < STARTUP_TIMEOUT) {
        if (reactor != null && reactor.getStatus() == IOReactorStatus.ACTIVE) {
            updateState(State.STARTED);
            break;
        }
        try {
            Thread.sleep(10);
        } catch (InterruptedException e) {
            updateState(State.UNKNOWN);
            break;
        }
    }
}

---

From source file:com.indeed.lsmtree.recordlog.TestBlockCompressedRecordFile.java

public void testRandomWithReader() throws IOException {
    final BlockCompressedRecordFile<String> recordFile = createBlockCache();
    final AtomicInteger done = new AtomicInteger(8);
    for (int i = 0; i < 8; i++) {
        final int index = i;
        new Thread(new Runnable() {
            @Override// w w w.ja  v a  2  s.co  m
            public void run() {
                try {
                    final Random r = new Random(index);
                    for (int i = 0; i < 10000000; i++) {
                        int rand = r.nextInt(positions.size());
                        final RecordFile.Reader<String> reader = recordFile.reader(positions.get(rand));
                        assertTrue(reader.next());
                        assertEquals(reader.get(), strings.get(rand));
                        reader.close();
                    }
                } catch (IOException e) {
                    throw new RuntimeException(e);
                } finally {
                    done.decrementAndGet();
                }
            }
        }).start();
    }
    while (done.get() > 0) {
        Thread.yield();
    }
    recordFile.close();
}

---

From source file:com.android.marrowbone.anysoftboard.ChewbaccaUncaughtExceptionHandler.java

public void uncaughtException(Thread thread, Throwable ex) {
    Log.e(TAG, "Caught an unhandled exception!!! ", ex);
    boolean ignore = false;

    // https://github.com/AnySoftKeyboard/AnySoftKeyboard/issues/15
    String stackTrace = Log.getStackTrace(ex);
    if (ex instanceof NullPointerException && stackTrace != null && stackTrace.contains(
            "android.inputmethodservice.IInputMethodSessionWrapper.executeMessage(IInputMethodSessionWrapper.java")) {
        // https://github.com/AnySoftKeyboard/AnySoftKeyboard/issues/15
        Log.w(TAG, "An OS bug has been adverted. Move along, there is nothing to see here.");
        ignore = true;//  ww  w .  j a  va 2s  .com
    }

    if (!ignore && AnyApplication.getConfig().useChewbaccaNotifications()) {
        String appName = DeveloperUtils.getAppDetails(mApp);

        final CharSequence utcTimeDate = DateFormat.format("kk:mm:ss dd.MM.yyyy", new Date());
        final String newline = DeveloperUtils.NEW_LINE;
        String logText = "Hi. It seems that we have crashed.... Here are some details:" + newline
                + "****** UTC Time: " + utcTimeDate + newline + "****** Application name: " + appName + newline
                + "******************************" + newline + "****** Exception type: "
                + ex.getClass().getName() + newline + "****** Exception message: " + ex.getMessage() + newline
                + "****** Trace trace:" + newline + stackTrace + newline;
        logText += "******************************" + newline + "****** Device information:" + newline
                + DeveloperUtils.getSysInfo();
        if (ex instanceof OutOfMemoryError
                || (ex.getCause() != null && ex.getCause() instanceof OutOfMemoryError)) {
            logText += "******************************\n" + "****** Memory:" + newline + getMemory();
        }
        logText += "******************************" + newline + "****** Log-Cat:" + newline
                + Log.getAllLogLines();

        String crashType = ex.getClass().getSimpleName() + ": " + ex.getMessage();
        Intent notificationIntent = new Intent(mApp, SendBugReportUiActivity.class);
        notificationIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        notificationIntent.putExtra(SendBugReportUiActivity.EXTRA_KEY_BugReportDetails,
                (Parcelable) new SendBugReportUiActivity.BugReportDetails(ex, logText));

        PendingIntent contentIntent = PendingIntent.getActivity(mApp, 0, notificationIntent, 0);

        NotificationCompat.Builder builder = new NotificationCompat.Builder(mApp);
        builder.setSmallIcon(R.drawable.notification_error_icon)
                .setTicker(mApp.getText(R.string.ime_crashed_ticker))
                .setContentTitle(mApp.getText(R.string.ime_name))
                .setContentText(mApp.getText(R.string.ime_crashed_sub_text))
                .setSubText(
                        BuildConfig.DEBUG ? crashType : null/*not showing the type of crash in RELEASE mode*/)
                .setWhen(System.currentTimeMillis()).setContentIntent(contentIntent).setAutoCancel(true)
                .setOnlyAlertOnce(true).setDefaults(Notification.DEFAULT_LIGHTS | Notification.DEFAULT_VIBRATE);

        // notifying
        NotificationManager notificationManager = (NotificationManager) mApp
                .getSystemService(Context.NOTIFICATION_SERVICE);

        notificationManager.notify(1, builder.build());
    }
    // and sending to the OS
    if (!ignore && mOsDefaultHandler != null) {
        Log.i(TAG, "Sending the exception to OS exception handler...");
        mOsDefaultHandler.uncaughtException(thread, ex);
    }

    Thread.yield();
    //halting the process. No need to continue now. I'm a dead duck.
    System.exit(0);
}

---

From source file:com.streamsets.lib.security.http.PasswordHasher.java

protected String computeHash(String version, int iterations, byte[] salt, String valueTohash) {
    long start = System.currentTimeMillis();
    try {//from  w ww.ja  va2  s .c o m
        // yield CPU when this method is run in a tight loop
        Thread.yield();
        PBEKeySpec spec = new PBEKeySpec(valueTohash.toCharArray(), salt, iterations, getKeyLength());
        byte[] hash = SECRET_KEY_FACTORIES.get(version).generateSecret(spec).getEncoded();
        return version + ":" + iterations + ":" + Hex.encodeHexString(salt) + ":" + Hex.encodeHexString(hash);
    } catch (Exception ex) {
        throw new RuntimeException(ex);
    } finally {
        LOG.trace("Computing password hash '{}' with '{}' iterations took '{}msec'", version, iterations,
                System.currentTimeMillis() - start);
    }
}

---

From source file:at.uni_salzburg.cs.ckgroup.apos.AposNtripCasterMock.java

/**
 * This method stops the running NTRIP caster thread
 *
 * @throws IllegalStateException thrown if the mail server does not run
 *//*  ww w  . ja va  2s . c  om*/
public void stopCasterThread() throws IllegalStateException {
    System.out.println("\nStop NTRIP Caster on port " + port);
    if (ntripCaster == null)
        throw new IllegalStateException("NTRIP caster thread does not run.");

    ntripCaster.terminate();

    // Now we wait for the NTRIP caster to diminish.
    int cycles = 100;
    while (ntripCasterRunning && --cycles > 0) {
        try {
            Thread.sleep(50);
        } catch (Exception e) {
        }
        Thread.yield();
    }

    ntripCaster = null;
}

---

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