001/*
002 * (C) Copyright 2006-2009 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Nuxeo - initial API and implementation
018 *
019 * $Id$
020 */
021
022package org.nuxeo.ecm.platform.filemanager.core.listener;
023
024import java.util.ArrayList;
025import java.util.List;
026
027import org.apache.commons.logging.Log;
028import org.apache.commons.logging.LogFactory;
029import org.nuxeo.ecm.core.api.CoreSession;
030import org.nuxeo.ecm.core.api.DocumentLocation;
031import org.nuxeo.ecm.core.api.DocumentModel;
032import org.nuxeo.ecm.core.api.NuxeoPrincipal;
033import org.nuxeo.ecm.core.api.event.DocumentEventTypes;
034import org.nuxeo.ecm.core.event.Event;
035import org.nuxeo.ecm.core.event.EventContext;
036import org.nuxeo.ecm.core.event.EventListener;
037import org.nuxeo.ecm.core.event.impl.DocumentEventContext;
038
039public class SynchronousUnicityCheckListener extends AbstractUnicityChecker implements EventListener {
040
041    private static final Log log = LogFactory.getLog(SynchronousUnicityCheckListener.class);
042
043    @Override
044    public void handleEvent(Event event) {
045        if (!isUnicityCheckEnabled()) {
046            return;
047        }
048
049        List<String> uuids = new ArrayList<>();
050        if (DocumentEventTypes.DOCUMENT_CREATED.equals(event.getName())
051                || DocumentEventTypes.DOCUMENT_UPDATED.equals(event.getName())) {
052            EventContext ctx = event.getContext();
053            if (ctx instanceof DocumentEventContext) {
054                DocumentEventContext docCtx = (DocumentEventContext) ctx;
055
056                DocumentModel doc2Check = docCtx.getSourceDocument();
057                if (doc2Check.isProxy()) {
058                    // NOP
059                }
060                if (!uuids.contains(doc2Check.getId())) {
061                    uuids.add(doc2Check.getId());
062                    doUnicityCheck(doc2Check, docCtx.getCoreSession(), event);
063                }
064            }
065        }
066    }
067
068    @Override
069    protected void onDuplicatedDoc(CoreSession session, NuxeoPrincipal principal, DocumentModel newDoc,
070            List<DocumentLocation> existingDocs, Event event) {
071        // simply send a message
072        log.info("Duplicated file detected");
073        raiseDuplicatedFileEvent(session, principal, newDoc, existingDocs);
074    }
075
076}