| /** |
| * 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)); |
| } |
| } |