org.apache.hadoop.util.XMLUtils Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.apache.hadoop.util;
import javax.xml.transform.*;
import javax.xml.transform.stream.*;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import java.io.*;
/**
* General xml utilities.
*
*/
@InterfaceAudience.Private
@InterfaceStability.Unstable
public class XMLUtils {
/**
* Transform input xml given a stylesheet.
*
* @param styleSheet the style-sheet
* @param xml input xml data
* @param out output
* @throws TransformerConfigurationException
* @throws TransformerException
*/
public static void transform(
InputStream styleSheet, InputStream xml, Writer out
)
throws TransformerConfigurationException, TransformerException {
// Instantiate a TransformerFactory
TransformerFactory tFactory = TransformerFactory.newInstance();
// Use the TransformerFactory to process the
// stylesheet and generate a Transformer
Transformer transformer = tFactory.newTransformer(
new StreamSource(styleSheet)
);
// Use the Transformer to transform an XML Source
// and send the output to a Result object.
transformer.transform(new StreamSource(xml), new StreamResult(out));
}
}