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 *     Nuxeo - initial API and implementation
011 *
012 * $Id: DocumentChildrenReader.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.nuxeo.ecm.core.api.CoreSession;
020import org.nuxeo.ecm.core.api.DocumentModel;
021import org.nuxeo.ecm.core.api.DocumentModelIterator;
022import org.nuxeo.ecm.core.api.DocumentRef;
023import org.nuxeo.ecm.core.io.ExportedDocument;
024import org.nuxeo.ecm.core.io.impl.ExportedDocumentImpl;
025
026/**
027 * @deprecated unused since 5.6
028 */
029@Deprecated
030public class DocumentChildrenReader extends DocumentModelReader {
031
032    private DocumentModelIterator iterator;
033
034    public DocumentChildrenReader(CoreSession session, DocumentModel root) {
035        super(session);
036        iterator = session.getChildrenIterator(root.getRef(), null, null, null);
037    }
038
039    public DocumentChildrenReader(CoreSession session, DocumentRef root) {
040        this(session, session.getDocument(root));
041    }
042
043    @Override
044    public void close() {
045        super.close();
046        iterator = null;
047    }
048
049    @Override
050    public ExportedDocument read() throws IOException {
051        if (iterator.hasNext()) {
052            DocumentModel docModel = iterator.next();
053            return new ExportedDocumentImpl(docModel);
054        }
055        return null;
056    }
057
058}