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:Main.java

public static void main(String[] args) {
    int[] runningThreads = { 0 };
    int[] taskcount = { 10 };
    Lock myLock = new ReentrantLock(true);
    int maxThreadQty = 3;
    while ((taskcount[0] > 0) && (runningThreads[0] < maxThreadQty)) {
        myLock.lock();//from  w w w.j  a va2  s. co  m
        runningThreads[0]++;
        myLock.unlock();
        new Thread("T") {
            public void run() {
                myLock.lock();
                taskcount[0]--;
                runningThreads[0]--;
                myLock.unlock();
            }
        }.start();
    }
}

From source file:Test.java

public static void main(String[] args) {
    final Lock firstLock = new ReentrantLock();
    final Lock secondLock = new ReentrantLock();
    firstLock.lock();//from   www  .ja  v  a  2  s .  c om
    Thread secondThread = new Thread(new Runnable() {
        public void run() {
            secondLock.lock();
            firstLock.lock();
        }
    });
    secondThread.start();
    try {
        Thread.sleep(250);
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
    secondLock.lock();

    secondLock.unlock();
    firstLock.unlock();
}

From source file:Main.java

public static void performLocked(Lock lock, Runnable action) {
    lock.lock();//from   w  w  w.j  a  v a2 s .  c om
    try {
        action.run();
    } finally {
        lock.unlock();
    }
}

From source file:com.yahoo.gondola.container.Utils.java

private static void unlock(Lock lock) {
    if (lock != null) {
        lock.unlock();
    }
}

From source file:Main.java

public static <T> T performLocked(Lock lock, Callable<T> action) {
    lock.lock();//ww w.  j a  v a2s . co  m
    try {
        return action.call();
    } catch (RuntimeException e) {
        throw e;
    } catch (Throwable e) {
        throw new RuntimeException(e);
    } finally {
        lock.unlock();
    }
}

From source file:com.piggate.sdk.PiggateInfo.java

public static void addInfo(JSONArray bar) {

    Lock l = rwLock2.writeLock();
    l.lock();/* w w w  .j a  v a  2s.  com*/
    try {
        registryInfo(bar);
    } catch (Exception ex) {
    } finally {
        l.unlock();
    }
}

From source file:com.piggate.sdk.PiggateOffers.java

public static void addOffers(JSONArray bar) {

    Lock l = rwLock2.writeLock();
    l.lock();// w  w w .j  a va2 s . c  o m
    try {
        registryOffers(bar);
    } catch (Exception ex) {
    } finally {
        l.unlock();
    }
}

From source file:com.piggate.sdk.PiggateInfo.java

public static ArrayList<PiggateInfo> getInfo() {
    Lock l = rwLock2.readLock();
    ArrayList<PiggateInfo> result = new ArrayList<PiggateInfo>();
    l.lock();/*from www .ja va  2  s.c o  m*/
    try {
        result.addAll(internal_info);
    } catch (Exception ex) {
    } finally {
        l.unlock();
    }
    return result;
}

From source file:com.piggate.sdk.PiggateOffers.java

public static ArrayList<PiggateOffers> getOffers() {
    Lock l = rwLock2.readLock();
    ArrayList<PiggateOffers> result = new ArrayList<PiggateOffers>();
    l.lock();//  w  w w.j  a va  2  s.  c om
    try {
        result.addAll(internal_offers);
    } catch (Exception ex) {
    } finally {
        l.unlock();
    }
    return result;
}

From source file:org.nuxeo.ecm.platform.web.common.requestcontroller.filter.NuxeoRequestControllerFilter.java

/**
 * Releases the {@link Lock} if present in the HttpSession.
 *///from w  w  w  .j a v a2 s. c  o m
public static boolean simpleReleaseSyncOnSession(HttpServletRequest request) {
    HttpSession session = request.getSession(false);
    if (session == null) {
        if (log.isDebugEnabled()) {
            log.debug(doFormatLogMessage(request,
                    "No more HttpSession: can not unlock !, HttpSession must have been invalidated"));
        }
        return false;
    }
    log.debug(
            "Trying to unlock on session " + session.getId() + " on Thread " + Thread.currentThread().getId());

    Lock lock = (Lock) session.getAttribute(SESSION_LOCK_KEY);
    if (lock == null) {
        log.error("Unable to find session lock, HttpSession may have been invalidated");
        return false;
    } else {
        lock.unlock();
        if (request.getAttribute(SYNCED_REQUEST_FLAG) != null) {
            request.removeAttribute(SYNCED_REQUEST_FLAG);
        }
        if (log.isDebugEnabled()) {
            log.debug("session unlocked on Thread ");
        }
        return true;
    }
}