package com.epam.wilma.stubconfig.dom.transformer;
/*==========================================================================
Copyright 2013-2017 EPAM Systems
This file is part of Wilma.
Wilma is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Wilma 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with Wilma. If not, see <http://www.gnu.org/licenses/>.
===========================================================================*/
import java.io.ByteArrayOutputStream;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.springframework.stereotype.Component;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import com.epam.wilma.domain.stubconfig.exception.DocumentTransformationException;
/**
* Class for transforming a {@link Document} to byte array.
* @author Tamas_Bihari
*
*/
@Component
public class DomBasedDocumentTransformer {
/**
* Transforms a {@link Document} to byte array.
* @param document will be transformed
* @return with the document as byte array
* @throws DocumentTransformationException is thrown when {@link Document} can not be transformed
*/
public byte[] transform(final Document document) throws DocumentTransformationException {
ByteArrayOutputStream outputStream;
try {
TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer();
DOMSource source = new DOMSource(document);
outputStream = new ByteArrayOutputStream();
StreamResult result = new StreamResult(outputStream);
transformer.transform(source, result);
} catch (Exception e) {
throw new DocumentTransformationException("The actually used stub configuration XML can not be transformed. ", e);
}
return outputStream.toByteArray();
}
/**
* Transforms a {@link Document} into a new File.
* @param document will be transformed
* @param path will be the path of the new file
* @param actualStatus is the is the actual status of this stub descriptor
* @throws TransformerException is thrown when unrecoverable error occurs during the course of the transformation
*/
public void transformToFile(final Document document, final String path, final boolean actualStatus) throws TransformerException {
Element root = document.getDocumentElement();
root.setAttribute("active", String.valueOf(actualStatus));
TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer;
transformer = tFactory.newTransformer();
DOMSource source = new DOMSource(document);
StreamResult result = new StreamResult(path);
transformer.transform(source, result);
}
}