Examples with LockGuard com.hazelcast.internal.util.LockGuard used on opensource projects

Example 6 with LockGuard

use of com.hazelcast.internal.util.LockGuard in project hazelcast by hazelcast.

the class ClusterStateManager method commitClusterState.

public void commitClusterState(ClusterStateChange stateChange, Address initiator, String txnId, boolean isTransient) {
    Preconditions.checkNotNull(stateChange);
    stateChange.validate();
    clusterServiceLock.lock();
    try {
        final LockGuard stateLock = getStateLock();
        if (!stateLock.allowsUnlock(txnId)) {
            throw new TransactionException("Cluster state change [" + state + " -> " + stateChange + "] failed for " + initiator + ", current state: " + stateToString());
        }
        if (stateChange.isOfType(ClusterState.class)) {
            ClusterState newState = (ClusterState) stateChange.getNewState();
            doSetClusterState(newState, isTransient);
            // if state is changed to ACTIVE, then remove all members which left while not active.
            if (newState == ClusterState.ACTIVE) {
                node.getClusterService().removeMembersDeadWhileClusterIsNotActive();
            }
        } else if (stateChange.isOfType(Version.class)) {
            // version is validated on cluster-state-lock, thus we can commit without checking compatibility
            doSetClusterVersion((Version) stateChange.getNewState());
        } else {
            throw new IllegalArgumentException("Illegal ClusterStateChange of type " + stateChange.getType() + ".");
        }
    } finally {
        clusterServiceLock.unlock();
    }
}

Example 7 with LockGuard

use of com.hazelcast.internal.util.LockGuard in project hazelcast by hazelcast.

the class ClusterStateManager method lockClusterState.

/**
     * Validate cluster state change requested and set a {@code ClusterStateLock}.
     * @param stateChange
     * @param initiator
     * @param txnId
     * @param leaseTime
     * @param partitionStateVersion
     */
public void lockClusterState(ClusterStateChange stateChange, Address initiator, String txnId, long leaseTime, int partitionStateVersion) {
    Preconditions.checkNotNull(stateChange);
    clusterServiceLock.lock();
    try {
        if (!node.getNodeExtension().isStartCompleted()) {
            throw new IllegalStateException("Can not lock cluster state! Startup is not completed yet!");
        }
        if (stateChange.isOfType(Version.class)) {
            validateNodeCompatibleWith((Version) stateChange.getNewState());
            validateClusterVersionChange((Version) stateChange.getNewState());
        }
        checkMigrationsAndPartitionStateVersion(stateChange, partitionStateVersion);
        final LockGuard currentLock = getStateLock();
        if (!currentLock.allowsLock(txnId)) {
            throw new TransactionException("Locking failed for " + initiator + ", tx: " + txnId + ", current state: " + toString());
        }
        stateLockRef.set(new LockGuard(initiator, txnId, leaseTime));
        try {
            // check migration status and partition-state version again
            // if partition state is changed then release the lock and fail.
            checkMigrationsAndPartitionStateVersion(stateChange, partitionStateVersion);
        } catch (IllegalStateException e) {
            stateLockRef.set(LockGuard.NOT_LOCKED);
            throw e;
        }
    } finally {
        clusterServiceLock.unlock();
    }
}

Example 8 with LockGuard

use of com.hazelcast.internal.util.LockGuard in project hazelcast by hazelcast.

the class ClusterStateManager method lockOrExtendClusterState.

private void lockOrExtendClusterState(Address initiator, UUID txnId, long leaseTime) {
    Preconditions.checkPositive("leaseTime", leaseTime);
    LockGuard currentLock = getStateLock();
    if (!currentLock.allowsLock(txnId)) {
        throw new TransactionException("Locking failed for " + initiator + ", tx: " + txnId + ", current state: " + toString());
    }
    long newLeaseTime = currentLock.getRemainingTime() + leaseTime;
    if (newLeaseTime < 0L) {
        newLeaseTime = Long.MAX_VALUE;
    }
    stateLockRef.set(new LockGuard(initiator, txnId, newLeaseTime));
}

Example 9 with LockGuard

use of com.hazelcast.internal.util.LockGuard in project hazelcast by hazelcast.

the class ClusterStateManager method rollbackClusterState.

public boolean rollbackClusterState(UUID txnId) {
    clusterServiceLock.lock();
    try {
        final LockGuard currentLock = getStateLock();
        if (!currentLock.allowsUnlock(txnId)) {
            return false;
        }
        logger.fine("Rolling back cluster state transaction: " + txnId);
        stateLockRef.set(LockGuard.NOT_LOCKED);
        // if state allows join after rollback, then remove all members which left during transaction.
        if (state.isJoinAllowed()) {
            node.getClusterService().getMembershipManager().removeAllMissingMembers();
        }
        return true;
    } finally {
        clusterServiceLock.unlock();
    }
}

Example 10 with LockGuard

use of com.hazelcast.internal.util.LockGuard in project hazelcast by hazelcast.

the class ClusterStateManagerTest method assertLockedBy.

private void assertLockedBy(Address initiator) {
    assertEquals(IN_TRANSITION, clusterStateManager.getState());
    LockGuard stateLock = clusterStateManager.getStateLock();
    assertTrue(stateLock.isLocked());
    assertEquals(TXN, stateLock.getLockOwnerId());
    assertEquals(initiator, stateLock.getLockOwner());
}