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eXist-db NoSQL Database Core
/*
* eXist Open Source Native XML Database
* Copyright (C) 2001-2015 The eXist Project
* http://exist-db.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.exist.xmldb;
import java.net.URISyntaxException;
import java.util.Date;
import java.util.Optional;
import com.evolvedbinary.j8fu.tuple.Tuple2;
import org.exist.EXistException;
import org.exist.collections.triggers.TriggerException;
import org.exist.dom.persistent.DocumentImpl;
import org.exist.dom.persistent.LockedDocument;
import org.exist.security.Subject;
import org.exist.storage.BrokerPool;
import org.exist.storage.DBBroker.PreserveType;
import org.exist.storage.lock.Lock;
import org.exist.storage.lock.ManagedCollectionLock;
import org.exist.storage.lock.ManagedDocumentLock;
import org.exist.util.LockException;
import org.xmldb.api.base.Collection;
import org.xmldb.api.base.ErrorCodes;
import org.xmldb.api.base.XMLDBException;
public class LocalCollectionManagementService extends AbstractLocalService implements EXistCollectionManagementService {
public LocalCollectionManagementService(final Subject user, final BrokerPool pool, final LocalCollection parent) {
super(user, pool, parent);
}
@Override
public String getName() throws XMLDBException {
return "CollectionManagementService";
}
@Override
public String getVersion() throws XMLDBException {
return "1.0";
}
@Override
public Collection createCollection(final String collName) throws XMLDBException {
return createCollection(collName, (Date)null);
}
@Override
public Collection createCollection(final XmldbURI collName) throws XMLDBException {
return createCollection(collName, null);
}
@Override
public Collection createCollection(final String collName, final Date created) throws XMLDBException {
try {
return createCollection(XmldbURI.xmldbUriFor(collName), created);
} catch(final URISyntaxException e) {
throw new XMLDBException(ErrorCodes.INVALID_URI,e);
}
}
@Override
public Collection createCollection(final XmldbURI name, final Date created) throws XMLDBException {
final XmldbURI collName = resolve(name);
withDb((broker, transaction) -> {
try {
final org.exist.collections.Collection coll = broker.getOrCreateCollection(transaction, collName, Optional.ofNullable(created).map(c -> new Tuple2<>(null, c.getTime())));
try(final ManagedCollectionLock collectionLock = broker.getBrokerPool().getLockManager().acquireCollectionWriteLock(collName)) {
broker.saveCollection(transaction, coll);
}
return null;
} catch (final LockException | TriggerException e) {
throw new XMLDBException(ErrorCodes.VENDOR_ERROR, e.getMessage(), e);
}
});
return new LocalCollection(user, brokerPool, collection, collName);
}
@Override
public String getProperty(final String property ) {
return null;
}
@Override
public void removeCollection(final String collName) throws XMLDBException {
try{
removeCollection(XmldbURI.xmldbUriFor(collName));
} catch(final URISyntaxException e) {
throw new XMLDBException(ErrorCodes.INVALID_URI,e);
}
}
@Override
public void removeCollection(final XmldbURI name) throws XMLDBException {
final XmldbURI collName = resolve(name);
modify(collName).apply((collection, broker, transaction) -> broker.removeCollection(transaction, collection));
}
@Override
public void move(final String collectionPath, final String destinationPath, final String newName) throws XMLDBException {
try{
move(XmldbURI.xmldbUriFor(collectionPath), XmldbURI.xmldbUriFor(destinationPath), XmldbURI.xmldbUriFor(newName));
} catch(final URISyntaxException e) {
throw new XMLDBException(ErrorCodes.INVALID_URI,e);
}
}
@Override
public void move(final XmldbURI src, final XmldbURI dest, final XmldbURI name) 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) ->
modify(broker, transaction, srcPath).apply((source, b1, t1) ->
modify(b1, t1, destPath).apply((destination, b2, t2) -> {
b2.moveCollection(t2, source, destination, newName);
return null;
})
)
);
}
@Override
public void moveResource(final String resourcePath, final String destinationPath, final String newName) throws XMLDBException {
try{
moveResource(XmldbURI.xmldbUriFor(resourcePath), XmldbURI.xmldbUriFor(destinationPath), XmldbURI.xmldbUriFor(newName));
} catch(final URISyntaxException e) {
throw new XMLDBException(ErrorCodes.INVALID_URI,e);
}
}
@Override
public void moveResource(final XmldbURI src, final XmldbURI dest, final XmldbURI name) 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) ->
modify(broker, transaction, srcPath.removeLastSegment()).apply((sourceCol, b1, t1) -> {
try(final LockedDocument lockedSource = sourceCol.getDocumentWithLock(b1, srcPath.lastSegment(), Lock.LockMode.WRITE_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))) {
b2.moveResource(t2, source, destinationCol, newName);
// NOTE: early release of Collection locks inline with Asymmetrical Locking scheme
destinationCol.close();
sourceCol.close();
}
return null;
});
}
})
);
}
@Override
public void copy(final String collectionPath, final String destinationPath, final String newName) throws XMLDBException {
try{
copy(XmldbURI.xmldbUriFor(collectionPath), XmldbURI.xmldbUriFor(destinationPath),XmldbURI.xmldbUriFor(newName), PreserveType.DEFAULT);
} catch(final URISyntaxException e) {
throw new XMLDBException(ErrorCodes.INVALID_URI,e);
}
}
@Override
public void copy(final XmldbURI src, final XmldbURI dest, final XmldbURI name) throws XMLDBException {
copy(src, dest, name, PreserveType.DEFAULT);
}
@Override
public void copy(final XmldbURI src, final XmldbURI dest, final XmldbURI name, final String preserveType) throws XMLDBException {
copy(src, dest, name, PreserveType.valueOf(preserveType));
}
private void copy(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).apply((source, b1, t1) ->
modify(b1, t1, destPath).apply((destination, b2, t2) -> {
try {
b2.copyCollection(t2, source, destination, newName, preserve);
return null;
} catch (final EXistException e) {
throw new XMLDBException(ErrorCodes.VENDOR_ERROR, "failed to move collection " + srcPath, e);
}
})
)
);
}
@Override
public void copyResource(final String resourcePath, final String destinationPath, final String newName) throws XMLDBException {
try{
copyResource(XmldbURI.xmldbUriFor(resourcePath), XmldbURI.xmldbUriFor(destinationPath),XmldbURI.xmldbUriFor(newName), PreserveType.DEFAULT);
} catch(final URISyntaxException e) {
throw new XMLDBException(ErrorCodes.INVALID_URI,e);
}
}
@Override
public void copyResource(final XmldbURI src, final XmldbURI dest, final XmldbURI name) throws XMLDBException {
copyResource(src, dest, name, PreserveType.DEFAULT);
}
@Override
public void copyResource(final XmldbURI src, final XmldbURI dest, final XmldbURI name, final String preserveType) throws XMLDBException {
copyResource(src, dest, name, PreserveType.valueOf(preserveType));
}
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);
}
}
});
}
})
);
}
@Override
public void setProperty(final String property, final String value) {
}
@Override
public void runCommand(final String[] params) throws XMLDBException {
withDb((broker, transaction) -> {
org.exist.plugin.command.Commands.command(XmldbURI.create(collection.getPath()), params);
return null;
});
}
}
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