@Override
public void databases(final LockResult lr) {
for (final Command c : cmds) c.databases(lr);
// lock globally if context-dependent is found (context will be changed by commands)
final boolean wc = lr.write.contains(DBLocking.CTX) || lr.write.contains(DBLocking.COLL);
final boolean rc = lr.read.contains(DBLocking.CTX) || lr.read.contains(DBLocking.COLL);
if (wc || rc && !lr.write.isEmpty()) {
lr.writeAll = true;
lr.readAll = true;
} else if (rc) {
lr.readAll = true;
}
}
@Override
public void databases(final LockResult lr) {
if (qp == null) {
lr.writeAll = true;
} else {
qp.databases(lr);
info.readLocked = lr.readAll ? null : lr.read;
info.writeLocked = lr.writeAll ? null : lr.write;
}
}
@Override
public void getWriteLock(Object resource, Transaction tx)
throws DeadlockDetectedException, IllegalResourceException {
// Code copied from getReadLock. Fix!
LockGrabber grabber = null;
if (resource instanceof Node) grabber = LockGrabber.NODE_WRITE;
else if (resource instanceof Relationship) grabber = LockGrabber.RELATIONSHIP_WRITE;
else if (resource instanceof GraphProperties) grabber = LockGrabber.GRAPH_WRITE;
else if (resource instanceof IndexLock) grabber = LockGrabber.INDEX_WRITE;
try {
if (grabber == null) {
super.getWriteLock(resource, tx);
return;
}
initializeTxIfFirst();
LockResult result = null;
do {
int eventIdentifier = getLocalTxId();
result =
databaseOperations.receive(
grabber.acquireLock(
broker.getMaster().first(),
databaseOperations.getSlaveContext(eventIdentifier),
resource));
switch (result.getStatus()) {
case OK_LOCKED:
super.getWriteLock(resource, tx);
return;
case DEAD_LOCKED:
throw new DeadlockDetectedException(result.getDeadlockMessage());
}
} while (result.getStatus() == LockStatus.NOT_LOCKED);
} catch (RuntimeException e) {
databaseOperations.exceptionHappened(e);
throw e;
}
}
@Override
public void databases(final LockResult lr) {
lr.readAll = true;
}
