Examples with ManagedDocumentLock org.exist.storage.lock.ManagedDocumentLock used on opensource projects

Example 21 with ManagedDocumentLock

use of org.exist.storage.lock.ManagedDocumentLock in project exist by eXist-db.

the class LocalCollectionManagementService method copyResource.

private void copyResource(final XmldbURI src, final XmldbURI dest, final XmldbURI name, final PreserveType preserve) throws XMLDBException {
    final XmldbURI srcPath = resolve(src);
    final XmldbURI destPath = dest == null ? srcPath.removeLastSegment() : resolve(dest);
    final XmldbURI newName;
    if (name == null) {
        newName = srcPath.lastSegment();
    } else {
        newName = name;
    }
    withDb((broker, transaction) -> read(broker, transaction, srcPath.removeLastSegment()).apply((sourceCol, b1, t1) -> {
        try (final LockedDocument lockedSource = sourceCol.getDocumentWithLock(b1, srcPath.lastSegment(), Lock.LockMode.READ_LOCK)) {
            final DocumentImpl source = lockedSource == null ? null : lockedSource.getDocument();
            if (source == null) {
                // NOTE: early release of Collection lock inline with Asymmetrical Locking scheme
                sourceCol.close();
                throw new XMLDBException(ErrorCodes.NO_SUCH_RESOURCE, "Resource " + srcPath + " not found");
            }
            return modify(b1, t1, destPath).apply((destinationCol, b2, t2) -> {
                try (final ManagedDocumentLock lockedDestination = b2.getBrokerPool().getLockManager().acquireDocumentWriteLock(destinationCol.getURI().append(newName))) {
                    try {
                        b2.copyResource(t2, source, destinationCol, newName, preserve);
                        // NOTE: early release of Collection locks inline with Asymmetrical Locking scheme
                        destinationCol.close();
                        sourceCol.close();
                        return null;
                    } catch (final EXistException e) {
                        throw new XMLDBException(ErrorCodes.VENDOR_ERROR, "failed to copy resource " + srcPath, e);
                    }
                }
            });
        }
    }));
}

Example 22 with ManagedDocumentLock

use of org.exist.storage.lock.ManagedDocumentLock in project exist by eXist-db.

the class NewArrayNodeSet method lock.

@Override
public ManagedLocks<ManagedDocumentLock> lock(final DBBroker broker, final boolean exclusive) throws LockException {
    sort();
    final LockManager lockManager = broker.getBrokerPool().getLockManager();
    final ManagedDocumentLock[] managedDocumentLocks = new ManagedDocumentLock[documentCount];
    try {
        for (int idx = 0; idx < documentCount; idx++) {
            final DocumentImpl doc = nodes[documentNodesOffset[idx]].getOwnerDocument();
            final ManagedDocumentLock managedDocumentLock;
            if (exclusive) {
                managedDocumentLock = lockManager.acquireDocumentWriteLock(doc.getURI());
            } else {
                managedDocumentLock = lockManager.acquireDocumentReadLock(doc.getURI());
            }
            managedDocumentLocks[idx] = managedDocumentLock;
        }
        return new ManagedLocks<>(managedDocumentLocks);
    } catch (final LockException e) {
        // unlock any previously locked documents
        new ManagedLocks<>(managedDocumentLocks).close();
        throw e;
    }
}

Example 23 with ManagedDocumentLock

use of org.exist.storage.lock.ManagedDocumentLock in project exist by eXist-db.

the class ExtArrayNodeSet method lock.

@Override
public ManagedLocks<ManagedDocumentLock> lock(final DBBroker broker, final boolean exclusive) throws LockException {
    final LockManager lockManager = broker.getBrokerPool().getLockManager();
    final ManagedDocumentLock[] managedDocumentLocks = new ManagedDocumentLock[partCount];
    try {
        for (int i = 0; i < partCount; i++) {
            final DocumentImpl doc = parts[i].getOwnerDocument();
            final ManagedDocumentLock docLock;
            if (exclusive) {
                docLock = lockManager.acquireDocumentWriteLock(doc.getURI());
            } else {
                docLock = lockManager.acquireDocumentReadLock(doc.getURI());
            }
            managedDocumentLocks[i] = docLock;
        }
        return new ManagedLocks<>(managedDocumentLocks);
    } catch (final LockException e) {
        // unlock any previously locked documents
        new ManagedLocks<>(managedDocumentLocks).close();
        throw e;
    }
}