001/*
002 * Copyright (c) 2006-2011 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the Eclipse Public License v1.0
006 * which accompanies this distribution, and is available at
007 * http://www.eclipse.org/legal/epl-v10.html
008 *
009 * Contributors:
010 *     bstefanescu
011 *
012 * $Id: DocumentModelUpdater.java 29029 2008-01-14 18:38:14Z ldoguin $
013 */
014
015package org.nuxeo.ecm.core.io.impl.plugins;
016
017import java.io.IOException;
018
019import org.apache.commons.logging.Log;
020import org.apache.commons.logging.LogFactory;
021import org.nuxeo.ecm.core.api.CoreSession;
022import org.nuxeo.ecm.core.api.DocumentLocation;
023import org.nuxeo.ecm.core.api.DocumentModel;
024import org.nuxeo.ecm.core.api.DocumentNotFoundException;
025import org.nuxeo.ecm.core.api.IdRef;
026import org.nuxeo.ecm.core.io.DocumentTranslationMap;
027import org.nuxeo.ecm.core.io.ExportedDocument;
028import org.nuxeo.ecm.core.io.impl.AbstractDocumentModelWriter;
029import org.nuxeo.ecm.core.io.impl.DocumentTranslationMapImpl;
030
031/**
032 * A writer that only updates existing documents. The doc ID is used to identity documents. The imported tree structure
033 * is ignored.
034 *
035 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
036 */
037// TODO: improve it ->
038// modify core session to add a batch create method and use it
039public class DocumentModelUpdater extends AbstractDocumentModelWriter {
040
041    private static final Log log = LogFactory.getLog(DocumentModelUpdater.class);
042
043    /**
044     * @param session the session to the repository where to write
045     * @param parentPath where to write the tree. this document will be used as the parent of all top level documents
046     *            passed as input. Note that you may have
047     */
048    public DocumentModelUpdater(CoreSession session, String parentPath) {
049        super(session, parentPath);
050    }
051
052    public DocumentModelUpdater(CoreSession session, String parentPath, int saveInterval) {
053        super(session, parentPath, saveInterval);
054    }
055
056    @Override
057    public DocumentTranslationMap write(ExportedDocument xdoc) throws IOException {
058        if (xdoc.getDocument() == null) {
059            // not a valid doc -> this may be a regular folder for example the
060            // root of the tree
061            return null;
062        }
063
064        DocumentModel doc = null;
065        String id = xdoc.getId();
066        try {
067            doc = session.getDocument(new IdRef(id));
068        } catch (DocumentNotFoundException e) {
069            log.error("Cannot update document. No such document: " + id);
070            return null;
071        }
072
073        doc = updateDocument(xdoc, doc);
074        DocumentLocation source = xdoc.getSourceLocation();
075        DocumentTranslationMap map = new DocumentTranslationMapImpl(source.getServerName(), doc.getRepositoryName());
076        map.put(source.getDocRef(), doc.getRef());
077        return map;
078    }
079
080}