Examples with ActionHierarchy com.arjuna.ats.arjuna.coordinator.ActionHierarchy used on opensource projects

Example 1 with ActionHierarchy

use of com.arjuna.ats.arjuna.coordinator.ActionHierarchy in project narayana by jbosstm.

the class ArjunaContextImple method initialiseContext.

public void initialiseContext(Object param) {
    try {
        BACoordinator currentCoordinator = (BACoordinator) param;
        ActivityHierarchy hier = null;
        try {
            hier = UserActivityFactory.userActivity().currentActivity();
        } catch (SystemException ex) {
            ex.printStackTrace();
        }
        if ((currentCoordinator != null) && (hier != null)) {
            /*
        		 * Do the manditory stuff first.
        		 */
            ActionHierarchy txHier = currentCoordinator.getHierarchy();
            final int depth = txHier.depth();
            _identifierValues = new String[depth];
            _expiresValues = new int[depth];
            _identifierValues[0] = txHier.getDeepestActionUid().stringForm();
            _expiresValues[0] = hier.activity(hier.size() - 1).getTimeout();
            /*
        		 * Now let's do the optional stuff.
        		 */
            for (int count = 1, index = 0; count < depth; count++, index++) {
                _identifierValues[count] = txHier.getActionUid(index).stringForm();
                _expiresValues[count] = hier.activity(index).getTimeout();
            }
        }
    } catch (ClassCastException ex) {
        throw new IllegalArgumentException();
    }
}

Example 2 with ActionHierarchy

use of com.arjuna.ats.arjuna.coordinator.ActionHierarchy in project narayana by jbosstm.

the class LockManager method setlock.

/*
     * This is the main user visible operation. Attempts to set the given lock
     * on the current object. If lock cannot be set, then the lock attempt is
     * retried retry times before giving up and returning an error. This gives a
     * simple handle on deadlock.
     * 
     * sleepTime is milliseconds.
     * 
     * @return <code>LockResult</code> indicating outcome.
     */
public int setlock(Lock toSet, int retry, int sleepTime) {
    if (txojLogger.logger.isTraceEnabled()) {
        txojLogger.logger.trace("LockManager::setlock(" + toSet + ", " + retry + ", " + sleepTime + ")");
    }
    int returnStatus = LockResult.REFUSED;
    // JBTM-2098, we need to have the action locked in case a simultaneous abort
    // is issued which would try to lock the mutex before we can call modified
    Object toLock = BasicAction.Current();
    if (toLock == null) {
        toLock = new Object();
    }
    synchronized (toLock) {
        if (!lockMutex())
            return LockResult.REFUSED;
        try {
            int conflict = ConflictType.CONFLICT;
            LockRecord newLockR = null;
            boolean modifyRequired = false;
            BasicAction currAct = null;
            if (toSet == null) {
                txojLogger.i18NLogger.warn_LockManager_2();
                return LockResult.REFUSED;
            }
            currAct = BasicAction.Current();
            if (currAct != null) {
                ActionHierarchy ah = currAct.getHierarchy();
                if (ah != null)
                    toSet.changeHierarchy(ah);
                else {
                    txojLogger.i18NLogger.warn_LockManager_3();
                    toSet = null;
                    return LockResult.REFUSED;
                }
            }
            if (super.loadObjectState())
                super.setupStore();
            while ((conflict == ConflictType.CONFLICT) && ((retry >= 0) || ((retry == LockManager.waitTotalTimeout) && (sleepTime > 0)))) {
                synchronized (locksHeldLockObject) {
                    conflict = ConflictType.CONFLICT;
                    if (loadState()) {
                        conflict = lockConflict(toSet);
                    } else {
                        txojLogger.i18NLogger.warn_LockManager_4();
                    }
                    if (conflict != ConflictType.CONFLICT) {
                        /*
                         * When here the conflict was resolved or the retry limit
                         * expired.
                         */
                        /* no conflict so set lock */
                        modifyRequired = toSet.modifiesObject();
                        if (super.activate()) {
                            returnStatus = LockResult.GRANTED;
                            if (conflict == ConflictType.COMPATIBLE) {
                                int lrStatus = AddOutcome.AR_ADDED;
                                if (currAct != null) {
                                    /* add new lock record to action list */
                                    newLockR = new LockRecord(this, (modifyRequired ? false : true), currAct);
                                    if ((lrStatus = currAct.add(newLockR)) != AddOutcome.AR_ADDED) {
                                        newLockR = null;
                                        if (lrStatus == AddOutcome.AR_REJECTED)
                                            returnStatus = LockResult.REFUSED;
                                    }
                                }
                                if (returnStatus == LockResult.GRANTED) {
                                    locksHeld.insert(toSet);
                                /*
                                     * add to local lock
                                     * list
                                     */
                                }
                            }
                        } else {
                            /* activate failed - refuse request */
                            txojLogger.i18NLogger.warn_LockManager_5();
                            returnStatus = LockResult.REFUSED;
                        }
                    }
                    if ((returnStatus == LockResult.GRANTED) && (conflict == ConflictType.COMPATIBLE)) {
                        if (!unloadState()) {
                            txojLogger.i18NLogger.warn_LockManager_6();
                            returnStatus = LockResult.REFUSED;
                        }
                    } else
                        freeState();
                    if (returnStatus == LockResult.GRANTED) {
                        if (modifyRequired) {
                            if (super.modified())
                                hasBeenLocked = true;
                            else {
                                conflict = ConflictType.CONFLICT;
                                returnStatus = LockResult.REFUSED;
                            }
                        }
                    }
                    if (conflict == ConflictType.CONFLICT)
                        freeState();
                }
                if (conflict == ConflictType.CONFLICT) {
                    if (retry != 0) {
                        if (sleepTime > 0) {
                            sleepTime -= conflictManager.wait(retry, sleepTime);
                        } else
                            retry = 0;
                    }
                    if (retry != LockManager.waitTotalTimeout)
                        retry--;
                }
            }
        } finally {
            unlockMutex();
        }
    }
    return returnStatus;
}

Example 3 with ActionHierarchy

use of com.arjuna.ats.arjuna.coordinator.ActionHierarchy in project narayana by jbosstm.

the class Lock method restore_state.

/**
 * Carefully restore the state of a Lock.
 *
 * @return <code>true</code> if successful, <code>false</code> otherwise.
 */
public boolean restore_state(InputObjectState os, int ot) {
    if (txojLogger.logger.isTraceEnabled()) {
        txojLogger.logger.trace("Lock::restore_state(" + os + ", " + ot + ")");
    }
    ActionHierarchy ah = new ActionHierarchy(0);
    try {
        currentStatus = os.unpackInt();
        lMode = os.unpackInt();
        ah.unpack(os);
        owners = ah;
        return true;
    } catch (IOException e) {
        return false;
    }
}

Example 4 with ActionHierarchy

use of com.arjuna.ats.arjuna.coordinator.ActionHierarchy in project narayana by jbosstm.

the class ActionHierarchyUnitTest method test.

@Test
public void test() throws Exception {
    ActionHierarchy ah = new ActionHierarchy(5);
    Uid[] tx = new Uid[5];
    assertEquals(ah.getDeepestActionUid(), Uid.nullUid());
    for (int i = 0; i < tx.length; i++) {
        tx[i] = new Uid();
        ah.add(tx[i]);
    }
    assertEquals(ah.depth(), tx.length);
    assertEquals(ah.getActionUid(0), tx[0]);
    Uid deepest = new Uid();
    ah.add(deepest, ActionType.TOP_LEVEL);
    PrintWriter pw = new PrintWriter(System.err);
    ah.print(pw);
    assertEquals(ah.getDeepestActionUid(), deepest);
    ActionHierarchy cp = new ActionHierarchy(ah);
    assertTrue(cp.equals(ah));
    cp.copy(ah);
    ah.copy(ah);
    assertTrue(cp.equals(ah));
    OutputBuffer out = new OutputBuffer();
    cp.pack(out);
    InputBuffer in = new InputBuffer(out.buffer());
    ah.unpack(in);
    assertTrue(ah.equals(cp));
    assertTrue(ah.isAncestor(deepest));
    ah.forgetDeepest();
    assertTrue(ah.findCommonPrefix(cp) != 0);
}

Example 5 with ActionHierarchy

use of com.arjuna.ats.arjuna.coordinator.ActionHierarchy in project narayana by jbosstm.

the class ArjunaContextImple method initialiseContext.

public void initialiseContext(Object param) {
    try {
        ATCoordinator currentCoordinator = (ATCoordinator) param;
        ActivityHierarchy hier = null;
        try {
            hier = UserActivityFactory.userActivity().currentActivity();
        } catch (SystemException ex) {
            ex.printStackTrace();
        }
        if ((currentCoordinator != null) && (hier != null)) {
            /*
				 * Do the manditory stuff first.
				 */
            ActionHierarchy txHier = currentCoordinator.getHierarchy();
            final int depth = txHier.depth();
            _identifierValues = new String[depth];
            _expiresValues = new int[depth];
            _identifierValues[0] = txHier.getDeepestActionUid().stringForm();
            _expiresValues[0] = hier.activity(hier.size() - 1).getTimeout();
            /*
				 * Now let's do the optional stuff.
				 */
            for (int count = 1, index = 0; count < depth; count++, index++) {
                _identifierValues[count] = txHier.getActionUid(index).stringForm();
                _expiresValues[count] = hier.activity(index).getTimeout();
            }
        }
    } catch (ClassCastException ex) {
        throw new IllegalArgumentException();
    }
}