| /* |
| * |
| * 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.airavata.common.utils; |
| |
| import java.io.IOException; |
| import java.io.StringReader; |
| import java.io.StringWriter; |
| import java.io.Writer; |
| |
| import javax.xml.parsers.DocumentBuilder; |
| import javax.xml.parsers.DocumentBuilderFactory; |
| import javax.xml.parsers.ParserConfigurationException; |
| |
| import org.apache.xml.serialize.OutputFormat; |
| import org.apache.xml.serialize.XMLSerializer; |
| import org.w3c.dom.Document; |
| import org.xml.sax.InputSource; |
| import org.xml.sax.SAXException; |
| |
| /** |
| * Pretty-prints xml, supplied as a string. |
| * <p/> |
| * eg. <code> |
| * String formattedXml = new XmlFormatter().format("<tag><nested>hello</nested></tag>"); |
| * </code> |
| */ |
| public class XmlFormatter { |
| |
| /** |
| * @param unformattedXml |
| * @return formattedXml |
| */ |
| public static String format(String unformattedXml) { |
| try { |
| final Document document = parseXmlFile(unformattedXml); |
| OutputFormat format = new OutputFormat(document); |
| format.setLineWidth(65); |
| format.setIndenting(true); |
| format.setIndent(2); |
| Writer out = new StringWriter(); |
| XMLSerializer serializer = new XMLSerializer(out, format); |
| serializer.serialize(document); |
| return out.toString(); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| private static Document parseXmlFile(String in) { |
| try { |
| DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); |
| DocumentBuilder db = dbf.newDocumentBuilder(); |
| InputSource is = new InputSource(new StringReader(in)); |
| return db.parse(is); |
| } catch (ParserConfigurationException e) { |
| throw new RuntimeException(e); |
| } catch (SAXException e) { |
| throw new RuntimeException(e); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |