001/*
002 * (C) Copyright 2006-2007 Nuxeo SAS (http://nuxeo.com/) and contributors.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the GNU Lesser General Public License
006 * (LGPL) version 2.1 which accompanies this distribution, and is available at
007 * http://www.gnu.org/licenses/lgpl.html
008 *
009 * This library is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * Contributors:
015 *     Nuxeo - initial API and implementation
016 *
017 * $Id$
018 */
019
020package org.nuxeo.ecm.platform.io.selectionReader;
021
022import java.io.IOException;
023import java.util.ArrayList;
024import java.util.List;
025
026import org.nuxeo.ecm.core.api.DocumentModel;
027import org.nuxeo.ecm.core.io.ExportedDocument;
028import org.nuxeo.ecm.core.io.impl.AbstractDocumentReader;
029import org.nuxeo.ecm.core.io.impl.ExportedDocumentImpl;
030
031public class DocumentModelListReader extends AbstractDocumentReader {
032
033    List<DocumentModel> docList;
034
035    public DocumentModelListReader(List<DocumentModel> docs) {
036        docList = new ArrayList<DocumentModel>();
037        docList.addAll(docs);
038    }
039
040    @Override
041    public ExportedDocument read() throws IOException {
042        if (docList == null || docList.isEmpty()) {
043            return null;
044        }
045        return new ExportedDocumentImpl(docList.remove(0));
046    }
047
048    public void close() {
049        docList = null;
050    }
051
052}