001/* 002 * (C) Copyright 2012 Nuxeo SA (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 * Antoine Taillefer 016 */ 017package org.nuxeo.ecm.core.io.impl; 018 019import java.io.ByteArrayInputStream; 020import java.io.ByteArrayOutputStream; 021import java.io.IOException; 022import java.io.InputStream; 023 024import org.nuxeo.ecm.core.api.CoreSession; 025import org.nuxeo.ecm.core.api.DocumentModel; 026import org.nuxeo.ecm.core.api.NuxeoException; 027import org.nuxeo.ecm.core.io.DocumentPipe; 028import org.nuxeo.ecm.core.io.DocumentReader; 029import org.nuxeo.ecm.core.io.DocumentWriter; 030import org.nuxeo.ecm.core.io.DocumentXMLExporter; 031import org.nuxeo.ecm.core.io.impl.plugins.TypedSingleDocumentReader; 032import org.nuxeo.ecm.core.io.impl.plugins.XMLDocumentWriter; 033import org.xml.sax.InputSource; 034 035/** 036 * Default implementation of a {@link DocumentXMLExporter}. 037 * 038 * @author <a href="mailto:ataillefer@nuxeo.com">Antoine Taillefer</a> 039 * @since 5.6 040 */ 041public class DocumentXMLExporterImpl implements DocumentXMLExporter { 042 043 private static final long serialVersionUID = 4086449614391137730L; 044 045 /** 046 * {@inheritDoc} 047 */ 048 public InputStream exportXML(DocumentModel doc, CoreSession session) { 049 050 byte[] xmlExportByteArray = exportXMLAsByteArray(doc, session); 051 return new ByteArrayInputStream(xmlExportByteArray); 052 } 053 054 /** 055 * {@inheritDoc} 056 */ 057 public InputSource exportXMLAsInputSource(DocumentModel doc, CoreSession session) { 058 059 InputStream xmlExportInputStream = exportXML(doc, session); 060 return new InputSource(xmlExportInputStream); 061 } 062 063 /** 064 * {@inheritDoc} 065 */ 066 public final byte[] exportXMLAsByteArray(DocumentModel doc, CoreSession session) { 067 068 ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); 069 DocumentWriter documentWriter = new XMLDocumentWriter(outputStream); 070 DocumentReader documentReader = new TypedSingleDocumentReader(session, doc); 071 072 DocumentPipe pipe = new DocumentPipeImpl(); 073 pipe.setReader(documentReader); 074 pipe.setWriter(documentWriter); 075 076 try { 077 pipe.run(); 078 } catch (IOException e) { 079 throw new NuxeoException("Error while trying to export the document to XML.", e); 080 } finally { 081 if (documentReader != null) { 082 documentReader.close(); 083 } 084 if (documentWriter != null) { 085 documentWriter.close(); 086 } 087 } 088 089 return outputStream.toByteArray(); 090 } 091}