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/*
* Copyright 2003-2008 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.OutputStream;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.sax.SAXSource;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.xml.sax.InputSource;
public class Main {
public static void ElementToStream(Element element, OutputStream out) {
try {
DOMSource source = new DOMSource(element);
StreamResult result = new StreamResult(out);
TransformerFactory transFactory = TransformerFactory.newInstance();
Transformer transformer = transFactory.newTransformer();
transformer.transform(source, result);
} catch (Exception ex) {
}
}
/**
* Utility to get the bytes uri
*
* @param source the resource to get
*/
public static InputSource sourceToInputSource(Source source) {
if (source instanceof SAXSource) {
return ((SAXSource) source).getInputSource();
} else if (source instanceof DOMSource) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
Node node = ((DOMSource) source).getNode();
if (node instanceof Document) {
node = ((Document) node).getDocumentElement();
}
Element domElement = (Element) node;
ElementToStream(domElement, baos);
InputSource isource = new InputSource(source.getSystemId());
isource.setByteStream(new ByteArrayInputStream(baos.toByteArray()));
return isource;
} else if (source instanceof StreamSource) {
StreamSource ss = (StreamSource) source;
InputSource isource = new InputSource(ss.getSystemId());
isource.setByteStream(ss.getInputStream());
isource.setCharacterStream(ss.getReader());
isource.setPublicId(ss.getPublicId());
return isource;
} else {
return getInputSourceFromURI(source.getSystemId());
}
}
/**
* Utility to get the bytes uri.
* Does NOT handle authenticated URLs,
* use getInputSourceFromURI(uri, username, password)
*
* @param uri the resource to get
*/
public static InputSource getInputSourceFromURI(String uri) {
return new InputSource(uri);
}
}
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