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

Introduction

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

Prototype

void unlock();

Source Link

Document

Releases the lock.

Usage

From source file:DemandCache.java

/**
 * @see java.util.Map#containsKey(java.lang.Object)
 *//*from  w  ww. jav a2 s . c  om*/
public boolean containsKey(Object key) {
    Lock lock = theLock.readLock();
    lock.lock();
    try {
        return theCache.containsKey(key);
    } finally {
        lock.unlock();
    }
}

From source file:com.iternox.piggate.samples.PiggateLogin.Activity_Logged.java

public ArrayList<PiggateBeacon> getPendingBeacons() {
    Lock l = rwLock.readLock();
    ArrayList<PiggateBeacon> result = new ArrayList<PiggateBeacon>();
    l.lock();//from   w w  w. j ava 2 s. c  o  m
    try {
        result.addAll(this.pending);
        this.pending.clear();
    } catch (Exception ex) {
    } finally {
        l.unlock();
    }
    return result;
}

From source file:org.springframework.integration.jdbc.lock.JdbcLockRegistryDifferentClientTests.java

@Test
public void testBothLock() throws Exception {

    for (int i = 0; i < 100; i++) {

        final JdbcLockRegistry registry1 = this.registry;
        final JdbcLockRegistry registry2 = this.child.getBean(JdbcLockRegistry.class);
        final List<String> locked = new ArrayList<String>();
        final CountDownLatch latch = new CountDownLatch(2);
        ExecutorService pool = Executors.newFixedThreadPool(2);
        pool.execute(() -> {//from w w w. ja  va  2  s . co m
            Lock lock = registry1.obtain("foo");
            try {
                lock.lockInterruptibly();
                locked.add("1");
                latch.countDown();
            } catch (InterruptedException e1) {
                Thread.currentThread().interrupt();
            } finally {
                try {
                    lock.unlock();
                } catch (Exception e2) {
                    // ignore
                }
            }
        });

        pool.execute(() -> {
            Lock lock = registry2.obtain("foo");
            try {
                lock.lockInterruptibly();
                locked.add("2");
                latch.countDown();
            } catch (InterruptedException e1) {
                Thread.currentThread().interrupt();
            } finally {
                try {
                    lock.unlock();
                } catch (Exception e2) {
                    // ignore
                }
            }
        });

        assertTrue(latch.await(10, TimeUnit.SECONDS));
        // eventually they both get the lock and release it
        assertTrue(locked.contains("1"));
        assertTrue(locked.contains("2"));

    }

}

From source file:com.mcapanel.plugin.PluginConnector.java

public String sendMethodResponse(String method, String... params) {
    if (connected()) {
        //if (returns.containsKey(method))
        //returns.remove(method);

        long time = sendMethod(method, params);

        if (time != -1) {
            long start = System.currentTimeMillis();

            while (System.currentTimeMillis() - start < 2000) {
                final Lock lock = returnsLock.readLock();
                lock.lock();/*from  ww  w. ja v a 2  s.c  o m*/

                try {
                    if (returns.containsKey(time)) {
                        PluginReturn ret = returns.get(time);

                        if (ret != null)
                            return ret.getData();
                    }
                } finally {
                    lock.unlock();
                }
            }

            final Lock lock = returnsLock.readLock();
            lock.lock();

            try {
                for (Long key : returns.descendingKeySet()) {
                    PluginReturn pr = returns.get(key);

                    if (pr.getMethod().equals(method)) {
                        return pr.getData();
                    }
                }
            } finally {
                lock.unlock();
            }
        }
    }

    return null;
}

From source file:org.springframework.integration.jdbc.lock.JdbcLockRegistryDifferentClientTests.java

@Test
public void testSecondThreadLoses() throws Exception {

    for (int i = 0; i < 100; i++) {

        final JdbcLockRegistry registry1 = this.registry;
        final JdbcLockRegistry registry2 = this.child.getBean(JdbcLockRegistry.class);
        final Lock lock1 = registry1.obtain("foo");
        final AtomicBoolean locked = new AtomicBoolean();
        final CountDownLatch latch1 = new CountDownLatch(1);
        final CountDownLatch latch2 = new CountDownLatch(1);
        final CountDownLatch latch3 = new CountDownLatch(1);
        lock1.lockInterruptibly();//  ww w  . jav a  2 s.c  o  m
        Executors.newSingleThreadExecutor().execute(() -> {
            Lock lock2 = registry2.obtain("foo");
            try {
                latch1.countDown();
                lock2.lockInterruptibly();
                latch2.await(10, TimeUnit.SECONDS);
                locked.set(true);
            } catch (InterruptedException e) {
                Thread.currentThread().interrupt();
            } finally {
                lock2.unlock();
                latch3.countDown();
            }
        });
        assertTrue(latch1.await(10, TimeUnit.SECONDS));
        assertFalse(locked.get());
        lock1.unlock();
        latch2.countDown();
        assertTrue(latch3.await(10, TimeUnit.SECONDS));
        assertTrue(locked.get());

    }

}

From source file:com.cloudera.oryx.ml.serving.als.model.ALSServingModel.java

public Collection<String> getAllItemIDs() {
    Collection<String> itemsList = new ArrayList<>();
    for (int partition = 0; partition < Y.length; partition++) {
        Lock lock = yLocks[partition].readLock();
        lock.lock();/*  ww  w  . j av  a  2 s. c  om*/
        try {
            itemsList.addAll(Y[partition].keySet());
        } finally {
            lock.unlock();
        }
    }
    return itemsList;
}

From source file:com.mastfrog.netty.http.client.CookieStore.java

public int size() {
    Lock readLock = lock.readLock();
    try {/*from www  .ja va2s. c  om*/
        readLock.lock();
        return cookies.size();
    } finally {
        readLock.unlock();
    }
}

From source file:com.mastfrog.netty.http.client.CookieStore.java

public boolean isEmpty() {
    Lock readLock = lock.readLock();
    try {// www . j ava 2s .  c  o m
        readLock.lock();
        return cookies.isEmpty();
    } finally {
        readLock.unlock();
    }
}

From source file:org.eclipse.gyrex.context.internal.registry.ContextRegistryImpl.java

public void close() throws Exception {
    // set closed
    closed.set(true);/*  w  w w  . j a  va2  s .c o  m*/

    // remove preference listener
    getContextFlushNode().removePreferenceChangeListener(flushListener);

    // dispose active contexts
    GyrexContextImpl[] activeContexts;
    final Lock lock = contextRegistryLock.writeLock();
    lock.lock();
    try {
        activeContexts = contexts.values().toArray(new GyrexContextImpl[contexts.size()]);
        contexts.clear();
    } finally {
        lock.unlock();
    }

    // dispose all the active contexts
    for (final GyrexContextImpl context : activeContexts) {
        context.dispose();
    }

    // clear handles
    handles.clear();
}