Example usage for java.util.concurrent.locks Lock lock

Introduction

In this page you can find the example usage for java.util.concurrent.locks Lock lock.

Prototype

lock

Source Link

Usage

From source file:info.pancancer.arch3.worker.CollectingLogOutputStream.java

/**
 * Get all the lines concatenated into a single string, with \n between each line.
 * /*w  w w  .  j a  v  a  2s. co  m*/
 * @return
 */
public String getAllLinesAsString() {
    Lock lock = new ReentrantLock();
    lock.lock();
    // TODO: Add functionality to allow other join characters besides \n ? (not urgent)
    String allTheLines = StringUtils.join(this.lines, "\n");
    lock.unlock();
    return allTheLines;
}

From source file:info.pancancer.arch3.worker.CollectingLogOutputStream.java

/**
 * Get the last *n* lines in the log.//from w ww . j av a 2 s .  co  m
 * 
 * @param n
 *            - The number of lines to get.
 * @return A list of strings.
 */
public List<String> getLastNLines(int n) {
    Lock lock = new ReentrantLock();
    lock.lock();
    List<String> nlines = new ArrayList<String>(n);
    int start, end;
    end = this.lines.size();
    start = Math.max(0, this.lines.size() - n);
    if (end > start && start >= 0) {
        nlines = this.lines.subList(start, end);
    }
    lock.unlock();
    return nlines;
}

From source file:org.mule.transport.ConcurrentWorkTracker.java

public List<Runnable> pendingWorks() {
    Lock lock = registryLock.readLock();

    try {//w w w . ja  v  a  2  s. c  om
        lock.lock();
        return Collections.unmodifiableList(works);
    } finally {
        lock.unlock();
    }
}

From source file:org.mule.transport.ConcurrentWorkTracker.java

@Override
public void dispose() {
    Lock lock = registryLock.writeLock();

    try {// w  ww .j  a va 2  s .  c om
        lock.lock();
        works.clear();
    } finally {
        lock.unlock();
    }
}

From source file:com.civprod.util.concurrent.locks.CompositeLock.java

@Override
public void lock() {
    for (Lock curLock : interLocks) {
        curLock.lock();
    }
}

From source file:com.crossover.trial.weather.metrics.impl.DropwizardMetricsService.java

@Override
public void clear() {
    Lock write = registryLock.readLock();
    write.lock();
    try {//w  ww . jav  a 2 s  .  c om
        registry = new MetricRegistry();
    } finally {
        write.unlock();
    }
}

From source file:com.crossover.trial.weather.metrics.impl.DropwizardMetricsService.java

@Override
public void markRequest(IATA iata, double radius) {
    Assert.isTrue(iata != null, "iata is required");

    Lock read = registryLock.readLock();
    read.lock();
    try {/*from   w ww. j  av  a2 s.c o  m*/
        registry.meter(iata.getCode()).mark();
        registry.histogram("radius").update(Double.valueOf(radius).intValue() / 10);
    } finally {
        read.unlock();
    }
}

From source file:org.mule.security.oauth.DefaultRefreshTokenManager.java

/**
 * {@inheritDoc} This implementation uses a lock to guarantee that no refresh
 * token is consumed more than once//from  www  . ja v  a  2 s. c  om
 *
 * @see org.mule.security.oauth.RefreshTokenManager#refreshToken(org.mule.security.oauth.OAuth2Adapter,
 * java.lang.String)
 */
@Override
public void refreshToken(OAuth2Adapter adapter, String accessTokenId) throws Exception {
    if (StringUtils.isEmpty(accessTokenId)) {
        throw new IllegalArgumentException("Cannot refresh a blank accessTokenId");
    }

    String id = String.format("%s:%s:%s", this.getClass().getCanonicalName(), adapter.getName(), accessTokenId);
    Lock lock = this.muleContext.getLockFactory().createLock(id);
    lock.lock();
    try {
        if (!this.getRefreshedTokens().contains(id)) {
            adapter.refreshAccessToken(accessTokenId);
            this.getRefreshedTokens().store(id, true);
        }
    } finally {
        lock.unlock();
    }

}

From source file:com.lithium.flow.shell.sshj.SshjShore.java

@Override
@Nonnull/* w w w .  j a  v  a  2  s. co m*/
public Shell getShell(@Nonnull Login login) throws IOException {
    checkNotNull(login);

    Sshj client = new Sshj(config, access.getPrompt());

    Lock lock = locks.getUnchecked(login.getHost());
    lock.lock();
    try {
        Shell shell = new SshjShell(client, login);
        shells.add(shell);
        return new DecoratedShell(shell) {
            @Override
            public void close() throws IOException {
                shells.remove(shell);
                super.close();
            }
        };
    } finally {
        lock.unlock();
    }
}

From source file:com.crossover.trial.weather.metrics.impl.DropwizardMetricsService.java

@Override
public MetricsReport<Meter, HistogramSnapshotDTO> buildReport() {
    Lock read = registryLock.readLock();
    read.lock();
    try {/* w w w  .  j  a v  a  2  s. c  om*/
        MetricsReport.Builder<Meter, HistogramSnapshotDTO> builder = new MetricsReport.Builder<Meter, HistogramSnapshotDTO>()
                .withRadiusFrequency(new HistogramSnapshotDTO(registry.histogram("radius"))).withDataSize(
                        dataPointRepository.countTotalMeasurementsInLastTimeWindow(timestamp().minusDays(1)));

        registry.getMeters().entrySet().stream().forEach(entry -> {
            Airport airport = airportRepository.findOne(IATA.valueOf(entry.getKey()));
            if (airport == null)
                registry.remove(entry.getKey());
            else {
                Meter meter = registry.meter(entry.getKey());
                if (meter != null)
                    builder.withAirportMetric(airport, meter);
            }
        });

        return builder.build();
    } finally {
        read.unlock();
    }
}