/*
* (C) Copyright 2012 Nuxeo SA (http://nuxeo.com/) and contributors.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Lesser General Public License
* (LGPL) version 2.1 which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/lgpl.html
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* Contributors:
* Antoine Taillefer
*/
package org.nuxeo.ecm.core.io.impl;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import org.nuxeo.ecm.core.api.ClientException;
import org.nuxeo.ecm.core.api.CoreSession;
import org.nuxeo.ecm.core.api.DocumentModel;
import org.nuxeo.ecm.core.io.DocumentPipe;
import org.nuxeo.ecm.core.io.DocumentReader;
import org.nuxeo.ecm.core.io.DocumentWriter;
import org.nuxeo.ecm.core.io.DocumentXMLExporter;
import org.nuxeo.ecm.core.io.impl.plugins.TypedSingleDocumentReader;
import org.nuxeo.ecm.core.io.impl.plugins.XMLDocumentWriter;
import org.xml.sax.InputSource;
/**
* Default implementation of a {@link DocumentXMLExporter}.
*
* @author <a href="mailto:ataillefer@nuxeo.com">Antoine Taillefer</a>
* @since 5.6
*/
public class DocumentXMLExporterImpl implements DocumentXMLExporter {
private static final long serialVersionUID = 4086449614391137730L;
/**
* {@inheritDoc}
*/
public InputStream exportXML(DocumentModel doc, CoreSession session)
throws ClientException {
byte[] xmlExportByteArray = exportXMLAsByteArray(doc, session);
return new ByteArrayInputStream(xmlExportByteArray);
}
/**
* {@inheritDoc}
*/
public InputSource exportXMLAsInputSource(DocumentModel doc,
CoreSession session) throws ClientException {
InputStream xmlExportInputStream = exportXML(doc, session);
return new InputSource(xmlExportInputStream);
}
/**
* {@inheritDoc}
*/
public final byte[] exportXMLAsByteArray(DocumentModel doc,
CoreSession session) throws ClientException {
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
DocumentWriter documentWriter = new XMLDocumentWriter(outputStream);
DocumentReader documentReader = new TypedSingleDocumentReader(session,
doc);
DocumentPipe pipe = new DocumentPipeImpl();
pipe.setReader(documentReader);
pipe.setWriter(documentWriter);
try {
pipe.run();
} catch (Exception e) {
throw new ClientException(
"Error while trying to export the document to XML.", e);
} finally {
if (documentReader != null) {
documentReader.close();
}
if (documentWriter != null) {
documentWriter.close();
}
}
return outputStream.toByteArray();
}
}