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

Introduction

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

Prototype

public String toString() 

Source Link

Document

Returns a string identifying this lock, as well as its lock state.

Usage

From source file:org.broadleafcommerce.core.web.order.SessionOrderLockManager.java

@Override
public void onApplicationEvent(HttpSessionDestroyedEvent event) {
    ReentrantLock lock = SESSION_LOCKS.remove(event.getSession().getId());
    if (lock != null && LOG.isDebugEnabled()) {
        LOG.debug("Destroyed lock due to session invalidation: " + lock.toString());
    }/*from   ww w . j  a v  a2  s  .co  m*/
}

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From source file:org.broadleafcommerce.core.web.order.SessionOrderLockManager.java

protected ReentrantLock getSessionLock() {
    if (!isActive()) {
        throw new IllegalStateException(
                "This is currently a sessionless environment and session cannot be used "
                        + "to obtain a lock. Consider using a different implementation of OrderLockManager.");
    }//from  w  w  w  . j  a v  a2s . c o  m

    HttpSession session = getRequest().getSession();
    ReentrantLock lock = SESSION_LOCKS.get(session.getId());

    if (lock == null) {
        // There was no session lock object. We'll need to create one. To do this, we have to synchronize the
        // creation globally, so that two threads don't create the session lock at the same time.
        synchronized (LOCK) {
            lock = SESSION_LOCKS.get(session.getId());
            if (lock == null) {
                lock = new ReentrantLock();
                SESSION_LOCKS.put(session.getId(), lock);
            }
        }
        if (LOG.isDebugEnabled()) {
            LOG.debug("Created new lock object: " + lock.toString());
        }
    } else {
        if (LOG.isDebugEnabled()) {
            LOG.debug("Returning previously created lock object: " + lock.toString());
        }
    }

    return lock;
}

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