Here you can find the source of getTransformer(boolean standalone, boolean indent, int indentNumber, boolean omitXmlDeclaration)
public static Transformer getTransformer(boolean standalone, boolean indent, int indentNumber, boolean omitXmlDeclaration) throws TransformerException
//package com.java2s; /**/* w w w . java 2 s . c om*/ * 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 * <p/> * http://www.apache.org/licenses/LICENSE-2.0 * <p/> * 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 javax.xml.XMLConstants; import javax.xml.transform.OutputKeys; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerException; import javax.xml.transform.TransformerFactory; public class Main { public static Transformer getTransformer(boolean standalone, boolean indent, int indentNumber, boolean omitXmlDeclaration) throws TransformerException { TransformerFactory f = TransformerFactory.newInstance(); f.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, Boolean.TRUE); if (indent) { f.setAttribute("indent-number", indentNumber); } Transformer t = f.newTransformer(); if (standalone) { t.setOutputProperty(OutputKeys.STANDALONE, "yes"); } if (indent) { t.setOutputProperty(OutputKeys.INDENT, "yes"); t.setOutputProperty("{xml.apache.org/xslt}indent-amount", "" + indentNumber); } if (omitXmlDeclaration) { t.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes"); } return t; } }