Examples with LockStoreException com.arjuna.ats.txoj.exceptions.LockStoreException used on opensource projects

Example 1 with LockStoreException

use of com.arjuna.ats.txoj.exceptions.LockStoreException in project narayana by jbosstm.

the class OptimisticLockManager method loadState.

/*
     * Lock and load the concurrency control state. First we grab the semaphore
     * to ensure exclusive access and then we build the held lock list by
     * retreiving the locks from the lock repository. If there is only one
     * server we do not bother doing this since all the locks can stay in the
     * server's memory. This is yet another consequence of not having
     * multi-threaded servers. Does not require synchronized since it can only
     * be called from other synchronized methods.
     */
protected final boolean loadState() {
    if (txojLogger.logger.isTraceEnabled()) {
        txojLogger.logger.trace("LockManager::loadState()");
    }
    if (super.objectModel == ObjectModel.SINGLE) {
        stateLoaded = true;
        return true;
    } else {
        InputObjectState S = null;
        if ((systemKey == null) && !initialise()) {
            return false;
        /* init failed */
        }
        if ((mutex == null) || (!mutex.tryLock())) {
            return false;
        }
        stateLoaded = false;
        objectLocked = true;
        try {
            S = lockStore.read_state(get_uid(), type());
            if (S != null) {
                Uid u = null;
                /*
                                                     * avoid system calls in Uid
                                                     * creation
                                                     */
                Lock current = null;
                int count = 0;
                try {
                    count = S.unpackInt();
                    boolean cleanLoad = true;
                    if (txojLogger.logger.isTraceEnabled()) {
                        txojLogger.logger.trace("LockManager::loadState() loading " + count + " lock(s)");
                    }
                    for (int i = 0; (i < count) && cleanLoad; i++) {
                        try {
                            u = UidHelper.unpackFrom(S);
                            current = new OptimisticLock(u);
                            if (current != null) {
                                if (current.restore_state(S, ObjectType.ANDPERSISTENT)) {
                                    locksHeld.push(current);
                                } else {
                                    current = null;
                                    cleanLoad = false;
                                }
                            } else {
                                cleanLoad = false;
                            }
                        } catch (IOException e) {
                            cleanLoad = false;
                        }
                    }
                    if (cleanLoad)
                        stateLoaded = true;
                    else {
                        while ((current = locksHeld.pop()) != null) current = null;
                    }
                } catch (IOException e) {
                }
                S = null;
            } else
                stateLoaded = true;
        } catch (LockStoreException e) {
            txojLogger.logger.warn(e);
        }
    }
    if (!stateLoaded) {
        if (// means object model != SINGLE
        mutex != null) {
            // and exit mutual exclusion
            mutex.unlock();
        }
        objectLocked = false;
    }
    return stateLoaded;
}

Example 2 with LockStoreException

use of com.arjuna.ats.txoj.exceptions.LockStoreException in project narayana by jbosstm.

the class LockManager method loadState.

/*
     * Lock and load the concurrency control state. First we grab the semaphore
     * to ensure exclusive access and then we build the held lock list by
     * retrieving the locks from the lock repository. If there is only one
     * server we do not bother doing this since all the locks can stay in the
     * server's memory. This is yet another consequence of not having
     * multi-threaded servers. Does not require synchronized since it can only
     * be called from other synchronized methods.
     */
/*
     * Return to 'protected final boolean' if we address https://issues.jboss.org/browse/JBTM-2399
     */
protected boolean loadState() {
    if (txojLogger.logger.isTraceEnabled()) {
        txojLogger.logger.trace("LockManager::loadState()");
    }
    if (super.objectModel == ObjectModel.SINGLE) {
        stateLoaded = true;
        return true;
    } else {
        InputObjectState S = null;
        if ((systemKey == null) && !initialise()) {
            return false;
        /* init failed */
        }
        if ((mutex == null) || (!mutex.tryLock())) {
            return false;
        }
        stateLoaded = false;
        objectLocked = true;
        try {
            S = lockStore.read_state(get_uid(), type());
            if (S != null) {
                Uid u = null;
                /*
                                                     * avoid system calls in Uid
                                                     * creation
                                                     */
                Lock current = null;
                int count = 0;
                try {
                    count = S.unpackInt();
                    boolean cleanLoad = true;
                    if (txojLogger.logger.isTraceEnabled()) {
                        txojLogger.logger.trace("LockManager::loadState() loading " + count + " lock(s)");
                    }
                    for (int i = 0; (i < count) && cleanLoad; i++) {
                        try {
                            u = UidHelper.unpackFrom(S);
                            current = new Lock(u);
                            if (current != null) {
                                if (current.restore_state(S, ObjectType.ANDPERSISTENT)) {
                                    locksHeld.push(current);
                                } else {
                                    current = null;
                                    cleanLoad = false;
                                }
                            } else {
                                cleanLoad = false;
                            }
                        } catch (IOException e) {
                            cleanLoad = false;
                        }
                    }
                    if (cleanLoad)
                        stateLoaded = true;
                    else {
                        while ((current = locksHeld.pop()) != null) current = null;
                    }
                } catch (IOException e) {
                }
                S = null;
            } else
                stateLoaded = true;
        } catch (LockStoreException e) {
            txojLogger.logger.warn(e);
        }
    }
    if (!stateLoaded) {
        if (// means object model != SINGLE
        mutex != null) {
            // and exit mutual exclusion
            mutex.unlock();
        }
        objectLocked = false;
    }
    return stateLoaded;
}

Example 3 with LockStoreException

use of com.arjuna.ats.txoj.exceptions.LockStoreException in project narayana by jbosstm.

the class LockStoreExceptionUnitTest method test.

@Test
public void test() {
    LockStoreException ex = new LockStoreException();
    ex = new LockStoreException("Oops foobar!");
    ex = new LockStoreException("Another issue!", new NullPointerException());
    ex = new LockStoreException(new IllegalArgumentException());
}