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.WorkflowRunner.java

/**
 * Get the stderr of the running command.
 *
 * @return//from  ww  w.  j  a v a 2s  .  co  m
 */
public String getStdErr() {
    String s;
    Lock lock = new ReentrantLock();
    lock.lock();
    try {
        this.errorStream.flush();
        s = this.errorStream.getAllLinesAsString();
    } finally {
        lock.unlock();
    }
    return s;
}

From source file:com.cloudera.oryx.ml.speed.als.ALSSpeedModel.java

public float[] getItemVector(String item) {
    Lock lock = yLock.readLock();
    lock.lock();
    try {//from w  w  w. j  a v  a2 s  .com
        return Y.get(item);
    } finally {
        lock.unlock();
    }
}

From source file:com.cloudera.oryx.ml.speed.als.ALSSpeedModel.java

public Solver getXTXSolver() {
    RealMatrix XTX;//from   w w  w .  j  ava2s .  co  m
    Lock lock = xLock.readLock();
    lock.lock();
    try {
        XTX = VectorMath.transposeTimesSelf(X.values());
    } finally {
        lock.unlock();
    }
    return new LinearSystemSolver().getSolver(XTX);
}

From source file:com.cloudera.oryx.ml.speed.als.ALSSpeedModel.java

public Solver getYTYSolver() {
    RealMatrix YTY;/*from   w  w  w .  ja va2 s.c o m*/
    Lock lock = yLock.readLock();
    lock.lock();
    try {
        YTY = VectorMath.transposeTimesSelf(Y.values());
    } finally {
        lock.unlock();
    }
    return new LinearSystemSolver().getSolver(YTY);
}

From source file:de.hoegertn.demo.cxfsimple.SpringStarter.java

public final void doStop() throws Exception {
    try {/* www .  ja v  a2s  .  c om*/
        this.doBeforeSpringStop();
    } catch (Exception e) {
        throw new RuntimeException("Before spring stop failed", e);
    }
    Lock writeLock = this.rwLock.writeLock();
    try {
        writeLock.lock();
        if (this.context.get() == null) {
            throw new RuntimeException("Not yet started");
        }
        this.context.get().stop();
        this.context.get().close();
        this.context.set(null);
    } catch (Exception e) {
        throw new RuntimeException("spring stop failed", e);
    } finally {
        writeLock.unlock();
    }

    try {
        this.doAfterSpringStop();
    } catch (Exception e) {
        throw new RuntimeException("After spring stop failed", e);
    }
}

From source file:com.cloudera.oryx.ml.speed.als.ALSSpeedModel.java

public void pruneX(Collection<String> users) {
    // Keep all users in the new model, or, that have been added since last model
    Lock lock = xLock.writeLock();
    lock.lock();
    try {//from w  w  w  . ja va2  s  . c o  m
        X.removeIf(new KeyOnlyBiPredicate<>(new AndPredicate<>(new NotContainsPredicate<>(users),
                new NotContainsPredicate<>(recentNewUsers))));
        recentNewUsers.clear();
    } finally {
        lock.unlock();
    }
}

From source file:com.cloudera.oryx.ml.speed.als.ALSSpeedModel.java

public void pruneY(Collection<String> items) {
    // Keep all items in the new model, or, that have been added since last model
    Lock lock = yLock.writeLock();
    lock.lock();
    try {//from w w  w  .j  av a 2s.  c o m
        Y.removeIf(new KeyOnlyBiPredicate<>(new AndPredicate<>(new NotContainsPredicate<>(items),
                new NotContainsPredicate<>(recentNewItems))));
        recentNewItems.clear();
    } finally {
        lock.unlock();
    }
}

From source file:com.cloudera.oryx.ml.speed.als.ALSSpeedModel.java

public void setUserVector(String user, float[] vector) {
    Preconditions.checkNotNull(vector);//w ww  .  j  a v a  2s  .c o m
    Preconditions.checkArgument(vector.length == features);
    Lock lock = xLock.writeLock();
    lock.lock();
    try {
        if (X.put(user, vector) == null) {
            // User was actually new
            recentNewUsers.add(user);
        }
    } finally {
        lock.unlock();
    }
}

From source file:com.cloudera.oryx.ml.speed.als.ALSSpeedModel.java

public void setItemVector(String item, float[] vector) {
    Preconditions.checkNotNull(vector);//from ww w . j a  v  a 2s  .com
    Preconditions.checkArgument(vector.length == features);
    Lock lock = yLock.writeLock();
    lock.lock();
    try {
        if (Y.put(item, vector) == null) {
            // Item was actually new
            recentNewItems.add(item);
        }
    } finally {
        lock.unlock();
    }
}

From source file:be.fgov.kszbcss.rhq.websphere.connector.security.TrustStoreManager.java

private KeyStore loadTrustStore() throws GeneralSecurityException, IOException {
    Lock lock = truststoreLock.readLock();
    lock.lock();
    try {/*w  w  w. j  a  v a  2s  . c  o m*/
        KeyStore truststore = KeyStore.getInstance("JKS");
        if (truststoreFile.exists()) {
            if (log.isDebugEnabled()) {
                log.debug("Loading existing trust store from " + truststoreFile);
            }
            InputStream in = new FileInputStream(truststoreFile);
            try {
                truststore.load(in, new char[0]);
            } finally {
                in.close();
            }
            if (log.isDebugEnabled()) {
                log.debug("Trust store has " + truststore.size() + " existing entries");
            }
        } else {
            if (log.isDebugEnabled()) {
                log.debug("Trust store " + truststoreFile
                        + " doesn't exist yet; a new one will be created if necessary");
            }
            truststore.load(null);
        }
        return truststore;
    } finally {
        lock.unlock();
    }
}