Example usage for java.util.concurrent.locks ReentrantLock ReentrantLock

Introduction

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

Prototype

public ReentrantLock()

Source Link

Document

Creates an instance of ReentrantLock .

Usage

From source file:StripedHashSet.java

public StripedHashSet(int capacity) {
    super(capacity);
    locks = new Lock[capacity];
    for (int j = 0; j < locks.length; j++) {
        locks[j] = new ReentrantLock();
    }/*from w  w w .  j  ava2s. c o m*/
}

From source file:com.esofthead.mycollab.lock.DistributionLockUtil.java

@SuppressWarnings("unchecked")
private static Lock getStaticDefaultLock(String lockName) {
    synchronized (map) {
        Lock lock = (Lock) map.get(lockName);
        if (lock == null) {
            lock = new ReentrantLock();
            map.put(lockName, lock);/* w ww.ja  v a  2 s .  c om*/
        }
        return lock;
    }
}

From source file:LinkList.java

public LinkList(E value) {
    this.value = value;
    rest = null;
    lock = new ReentrantLock();
    valueChanged = lock.newCondition();
    linkChanged = lock.newCondition();
}

From source file:RefinableHashSet.java

/**
 * Concurrent Cuckoo hash set. Resizes lock array.
 * @param capacity Initial number of buckets.
 *//*  www  .j av a 2 s . co  m*/
public RefinableHashSet(int capacity) {
    super(capacity);
    locks = new ReentrantLock[capacity];
    for (int j = 0; j < capacity; j++) {
        locks[j] = new ReentrantLock();
    }
    owner = new AtomicMarkableReference<Thread>(null, false);
}

From source file:com.qut.middleware.esoemanager.util.PolicyIDGenerator.java

public PolicyIDGenerator() {
    this.lock = new ReentrantLock();

    try {/*from   w w w  . j a v  a  2  s  .c  o m*/
        /* Attempt to get the specified RNG instance */
        this.random = SecureRandom.getInstance(this.RNG);
    } catch (NoSuchAlgorithmException nsae) {
        this.logger.error(Messages.getString("IdentifierGeneratorImpl.13")); //$NON-NLS-1$
        this.logger.debug(nsae.getLocalizedMessage(), nsae);
        this.random = new SecureRandom();
    }

    this.random.setSeed(System.currentTimeMillis());
}

From source file:RWStripedHashSet.java

/**
 * Constructor/*from  ww  w.j  a va  2s .c  o  m*/
 * @param capacity Initial number of  buckets.
 */
public RWStripedHashSet(int capacity) {
    super(capacity);
    locks = new Lock[capacity];
    for (int j = 0; j < locks.length; j++) {
        locks[j] = new ReentrantLock();
    }
    ReadWriteLock rwLock = new ReentrantReadWriteLock();
    readLock = rwLock.readLock();
    writeLock = rwLock.writeLock();
}

From source file:org.codehaus.wadi.core.contextualiser.HashingCollapser.java

public HashingCollapser(int numSyncs, final long timeout) {
    locks = new Lock[numSyncs];
    for (int i = 0; i < locks.length; i++) {
        locks[i] = new ReentrantLock() {
            public void lock() {
                try {
                    tryLock(timeout, TimeUnit.MILLISECONDS);
                } catch (InterruptedException e) {
                    throw new WADIRuntimeException(e);
                }//ww  w  .  j  a  va 2s  .  c om
            }

            public void lockInterruptibly() throws InterruptedException {
                boolean locked = tryLock(timeout, TimeUnit.MILLISECONDS);
                if (!locked) {
                    throw new WADIRuntimeException("Cannot acquire lock after " + timeout + "ms");
                }
            }

            public boolean tryLock() {
                try {
                    return tryLock(timeout, TimeUnit.MILLISECONDS);
                } catch (InterruptedException e) {
                    throw new WADIRuntimeException(e);
                }
            }
        };
    }
}

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

/**
 * Process a line./*from ww w. j ava 2  s . c o m*/
 * 
 * @param line
 *            - A line.
 * @param level
 *            - a logging level. Not used in this implementation.
 */
@Override
protected void processLine(String line, int level) {
    Lock lock = new ReentrantLock();
    lock.lock();
    lines.add(line);
    lock.unlock();
}

From source file:ome.services.blitz.util.ServantHolder.java

/**
 * Acquires the given lock or if necessary creates a new one.
 * //from  ww  w. j a v  a2s .  co m
 * @param key
 */
public void acquireLock(String key) {
    Lock lock = new ReentrantLock();
    Lock oldLock = locks.putIfAbsent(key, lock);
    // If there was already a lock,
    // then the new lock can be gc'd
    if (oldLock != null) {
        lock = oldLock;
    }
    lock.lock();
}

From source file:org.fim.internal.hash.HashProgress.java

public HashProgress(Context context) {
    this.context = context;
    this.progressLock = new ReentrantLock();
}