001/*
002 * (C) Copyright 2006-2009 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
018 */
019
020package org.nuxeo.ecm.platform.publisher.remoting.marshaling.io;
021
022import org.nuxeo.ecm.core.api.CoreSession;
023import org.nuxeo.ecm.core.api.DocumentModel;
024import org.nuxeo.ecm.core.io.ExportedDocument;
025import org.nuxeo.ecm.core.io.impl.ExportedDocumentImpl;
026import org.nuxeo.ecm.core.io.impl.plugins.DocumentModelReader;
027
028import java.io.IOException;
029
030/**
031 * {@link DocumentModelReader} implementation that uses inline blobs.
032 *
033 * @author tiry
034 */
035public class SingleDocumentReaderWithInLineBlobs extends DocumentModelReader {
036
037    protected DocumentModel doc;
038
039    private boolean readDone = false;
040
041    public SingleDocumentReaderWithInLineBlobs(CoreSession session, DocumentModel doc) {
042        super(session);
043        this.doc = doc;
044    }
045
046    @Override
047    public void close() {
048        super.close();
049        session = null;
050        doc = null;
051    }
052
053    @Override
054    public ExportedDocument read() throws IOException {
055        if (doc != null) {
056            if (readDone) {
057                return null;
058            } else {
059                readDone = true;
060                return new ExportedDocumentImpl(doc, true);
061            }
062        }
063        doc = null;
064        return null;
065    }
066
067}