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: DocumentModelWriter.java 30413 2008-02-21 18:38:54Z sfermigier $
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.common.utils.Path;
022import org.nuxeo.ecm.core.api.CoreSession;
023import org.nuxeo.ecm.core.api.DocumentLocation;
024import org.nuxeo.ecm.core.api.DocumentModel;
025import org.nuxeo.ecm.core.api.PathRef;
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 which is creating new docs or updating existing docs.
033 *
034 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
035 */
036// TODO: improve it ->
037// modify core session to add a batch create method and use it
038public class DocumentModelWriter extends AbstractDocumentModelWriter {
039
040    private static final Log log = LogFactory.getLog(DocumentModelWriter.class);
041
042    /**
043     * @param session the session to the repository where to write
044     * @param parentPath where to write the tree. this document will be used as the parent of all top level documents
045     *            passed as input. Note that you may have
046     */
047    public DocumentModelWriter(CoreSession session, String parentPath) {
048        super(session, parentPath);
049    }
050
051    public DocumentModelWriter(CoreSession session, String parentPath, int saveInterval) {
052        super(session, parentPath, saveInterval);
053    }
054
055    @Override
056    public DocumentTranslationMap write(ExportedDocument xdoc) throws IOException {
057        if (xdoc.getDocument() == null) {
058            // not a valid doc -> this may be a regular folder for example the
059            // root of the tree
060            return null;
061        }
062        Path path = xdoc.getPath();
063        // if (path.isEmpty() || path.isRoot()) {
064        // return; // TODO avoid to import the root
065        // }
066        path = root.append(path); // compute target path
067
068        return doWrite(xdoc, path);
069    }
070
071    private DocumentTranslationMap doWrite(ExportedDocument xdoc, Path targetPath) {
072
073        DocumentModel previousDoc = null;
074        PathRef pathRef = new PathRef(targetPath.toString());
075        if (session.exists(pathRef)) {
076            previousDoc = session.getDocument(pathRef);
077        }
078
079        DocumentModel doc;
080        if (previousDoc == null) {
081            doc = createDocument(xdoc, targetPath);
082        } else {
083            doc = updateDocument(xdoc, previousDoc);
084        }
085
086        DocumentLocation source = xdoc.getSourceLocation();
087        DocumentTranslationMap map = new DocumentTranslationMapImpl(source.getServerName(), doc.getRepositoryName());
088        if (source.getDocRef() != null && source.getDocRef().reference() != null) {
089            map.put(source.getDocRef(), doc.getRef());
090        }
091        return map;
092    }
093
094}