001/*
002 * (C) Copyright 2006-2011 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: DocumentsListReader.java 29029 2008-01-14 18:38:14Z ldoguin $
020 */
021
022package org.nuxeo.ecm.core.io.impl.plugins;
023
024import java.io.IOException;
025import java.util.ArrayList;
026import java.util.Collection;
027import java.util.Iterator;
028import java.util.List;
029
030import org.nuxeo.ecm.core.api.CoreSession;
031import org.nuxeo.ecm.core.api.DocumentModel;
032import org.nuxeo.ecm.core.api.DocumentRef;
033import org.nuxeo.ecm.core.io.ExportedDocument;
034import org.nuxeo.ecm.core.io.impl.ExportedDocumentImpl;
035
036/**
037 * Reader for a simple list of DocumentModel objects.
038 *
039 * @author <a href="mailto:dm@nuxeo.com">DM</a>
040 */
041public class DocumentsListReader extends DocumentModelReader {
042
043    private Iterator<DocumentModel> iterator;
044
045    public DocumentsListReader(CoreSession session, List<DocumentModel> docsList) {
046        super(session);
047
048        iterator = docsList.iterator();
049    }
050
051    public static DocumentsListReader createDocumentsListReader(CoreSession session, Collection<DocumentRef> docRefsList) {
052
053        List<DocumentModel> list = new ArrayList<DocumentModel>();
054
055        for (DocumentRef docRef : docRefsList) {
056            DocumentModel doc = session.getDocument(docRef);
057            list.add(doc);
058        }
059
060        return new DocumentsListReader(session, list);
061    }
062
063    @Override
064    public void close() {
065        super.close();
066        iterator = null;
067    }
068
069    @Override
070    public ExportedDocument read() throws IOException {
071        if (iterator.hasNext()) {
072            DocumentModel docModel = iterator.next();
073            return new ExportedDocumentImpl(docModel, inlineBlobs);
074        }
075        return null;
076    }
077
078}