/*
* Copyright (c) 2006-2011 Nuxeo SA (http://nuxeo.com/) and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* bstefanescu
*
* $Id: XMLDocumentWriter.java 29029 2008-01-14 18:38:14Z ldoguin $
*/
package org.eclipse.ecr.core.io.impl.plugins;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.XMLWriter;
import org.eclipse.ecr.core.api.DocumentLocation;
import org.eclipse.ecr.core.api.DocumentRef;
import org.eclipse.ecr.core.io.DocumentTranslationMap;
import org.eclipse.ecr.core.io.ExportedDocument;
import org.eclipse.ecr.core.io.impl.AbstractDocumentWriter;
import org.eclipse.ecr.core.io.impl.DocumentTranslationMapImpl;
/**
* Writes to a file or output stream the XML corresponding to the document
* content.
* <p>
* Note that additional xml descriptors (like relations.xml, workflow.xml etc)
* are ignored
* <p>
* Also blobs are not handled specially. The value existing in the blob data
* element will be written down. By default blobs are referred as external
* references, so if their content is not written in the XML document. If you
* want to encode blobs as base64 inside the document you must use the
* {@link InlineBlobTransformer}
* <p>
* In order to write Blobs are encoded as Base64 and included in the XML
* document
*
* @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
*/
public class XMLDocumentWriter extends AbstractDocumentWriter {
private static final Log log = LogFactory.getLog(XMLDocumentWriter.class);
protected final OutputStream out;
public XMLDocumentWriter(File file) throws IOException {
this(new BufferedOutputStream(new FileOutputStream(file)));
}
public XMLDocumentWriter(OutputStream out) {
this.out = out;
}
@Override
public DocumentTranslationMap write(ExportedDocument doc)
throws IOException {
OutputFormat format = AbstractDocumentWriter.createPrettyPrint();
XMLWriter writer = null;
try {
writer = new XMLWriter(out, format);
writer.write(doc.getDocument());
} finally {
if (writer != null) {
writer.close();
}
}
// keep location unchanged
DocumentLocation oldLoc = doc.getSourceLocation();
String oldServerName = oldLoc.getServerName();
DocumentRef oldDocRef = oldLoc.getDocRef();
DocumentTranslationMap map = new DocumentTranslationMapImpl(
oldServerName, oldServerName);
map.put(oldDocRef, oldDocRef);
return map;
}
@Override
public void close() {
if (out != null) {
try {
out.close();
} catch (IOException e) {
log.error(e);
}
}
}
}