1 /* 2 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * - Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 11 * - Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * - Neither the name of Oracle nor the names of its 16 * contributors may be used to endorse or promote products derived 17 * from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS 20 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 26 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * This sample demonstrates the use of es6 tagged template literal to 34 * create a java object. A XML DOM Document object is created from 35 * String using es6 tagged template literal. 36 * 37 * Usage: 38 * jjs --language=es6 dom_tagged_literal.js 39 */ 40 41 // Java types used 42 const BAIS = Java.type("java.io.ByteArrayInputStream") 43 const DocBuilderFac = Java.type("javax.xml.parsers.DocumentBuilderFactory") 44 const DOMSource = Java.type("javax.xml.transform.dom.DOMSource") 45 const StreamResult = Java.type("javax.xml.transform.stream.StreamResult") 46 const StringWriter = Java.type("java.io.StringWriter") 47 const TransformerFactory = Java.type("javax.xml.transform.TransformerFactory") 48 49 function DOM(str) { 50 var docBuilder = DocBuilderFac.newInstance().newDocumentBuilder() 51 docBuilder.validating = false 52 return docBuilder["parse(java.io.InputStream)"](new BAIS(String(str).bytes)) 53 } 54 55 // es6 tagged template literal to create DOM from 56 // multi-line XML string 57 58 const dom = DOM` 59 <foo> 60 <bar title="hello">world</bar> 61 </foo>` 62 63 // access DOM elements 64 const foo = dom.documentElement 65 print(foo.tagName) 66 const bar = foo.getElementsByTagName("bar").item(0) 67 print(bar.tagName) 68 print(bar.getAttribute("title")) 69 70 // modify DOM 71 foo.setAttribute("name", "nashorn") 72 foo.appendChild(dom.createElement("test")) 73 74 // serialize DOM to XML string 75 function domToXML(d) { 76 const transformer = TransformerFactory.newInstance().newTransformer() 77 const res = new StreamResult(new StringWriter()) 78 transformer.transform(new DOMSource(d), res) 79 return res.writer.toString() 80 } 81 82 // serialize DOM to a String & print 83 print(domToXML(dom))