/*
* eXist Open Source Native XML Database
* Copyright (C) 2012 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* $Id$
*/
package org.exist.storage.md;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.exist.collections.Collection;
import org.exist.collections.triggers.CollectionTrigger;
import org.exist.collections.triggers.TriggerException;
import org.exist.dom.DocumentImpl;
import org.exist.security.PermissionDeniedException;
import org.exist.storage.DBBroker;
import org.exist.storage.lock.Lock;
import org.exist.storage.txn.Txn;
import org.exist.xmldb.XmldbURI;
/**
* @author <a href="mailto:shabanovd@gmail.com">Dmitriy Shabanov</a>
*
*/
public class CollectionEvents implements CollectionTrigger {
@Override
public void configure(DBBroker broker, Collection parent, Map<String, List<? extends Object>> parameters) throws TriggerException {
}
@Override
public void beforeCreateCollection(DBBroker broker, Txn txn, XmldbURI uri) throws TriggerException {
// System.out.println("beforeCreateCollection "+uri);
}
@Override
public void afterCreateCollection(DBBroker broker, Txn txn, Collection collection) throws TriggerException {
// System.out.println("afterCreateCollection "+collection.getURI());
try {
MDStorageManager.inst.md.addMetas(collection);
} catch (Throwable e) {
MDStorageManager.LOG.fatal(e);
}
}
@Override
public void beforeCopyCollection(DBBroker broker, Txn txn, Collection collection, XmldbURI newUri) throws TriggerException {
}
@Override
public void afterCopyCollection(DBBroker broker, Txn txn, Collection collection, XmldbURI oldUri) throws TriggerException {
// System.out.println("afterCopyCollection "+collection.getURI());
try {
MDStorageManager.inst.md.copyMetas(oldUri, collection);
} catch (Throwable e) {
MDStorageManager.LOG.fatal(e);
}
}
@Override
public void beforeMoveCollection(DBBroker broker, Txn txn, Collection collection, XmldbURI newUri) throws TriggerException {
// System.out.println("beforeMoveCollection "+collection.getURI());
try {
for(Iterator<DocumentImpl> i = collection.iterator(broker); i.hasNext(); ) {
DocumentImpl doc = i.next();
MDStorageManager.inst.md.moveMetas(
collection.getURI().append(doc.getFileURI()),
newUri.append(doc.getFileURI())
);
}
} catch (PermissionDeniedException e) {
throw new TriggerException(e);
}
}
@Override
public void afterMoveCollection(DBBroker broker, Txn txn, Collection collection, XmldbURI oldUri) throws TriggerException {
// System.out.println("afterMoveCollection "+oldUri+" to "+collection.getURI());
MDStorageManager.inst.md.moveMetas(oldUri, collection.getURI());
}
private void deleteCollectionRecursive(DBBroker broker, Collection collection) throws PermissionDeniedException {
for(Iterator<DocumentImpl> i = collection.iterator(broker); i.hasNext(); ) {
DocumentImpl doc = i.next();
MDStorageManager.inst.md.delMetas(doc.getURI());
}
final XmldbURI uri = collection.getURI();
for(Iterator<XmldbURI> i = collection.collectionIterator(broker); i.hasNext(); ) {
final XmldbURI childName = i.next();
//TODO : resolve URIs !!! name.resolve(childName)
final Collection child = broker.openCollection(uri.append(childName), Lock.NO_LOCK);
if(child == null) {
// LOG.warn("Child collection " + childName + " not found");
} else {
try {
deleteCollectionRecursive(broker, child);
} finally {
child.release(Lock.NO_LOCK);
}
}
}
}
@Override
public void beforeDeleteCollection(DBBroker broker, Txn txn, Collection collection) throws TriggerException {
// System.out.println("beforeDeleteCollection "+collection.getURI());
try {
deleteCollectionRecursive(broker, collection);
} catch (PermissionDeniedException e) {
throw new TriggerException(e);
}
}
@Override
public void afterDeleteCollection(DBBroker broker, Txn txn, XmldbURI uri) throws TriggerException {
// System.out.println("afterDeleteCollection "+uri);
try {
MDStorageManager.inst.md.delMetas(uri);
} catch (Throwable e) {
MDStorageManager.LOG.fatal(e);
}
}
}