diff -r 7513299d1cd0 -r cd02250e9370 src/sample/nashorn/dom_tagged_literal.js --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/sample/nashorn/dom_tagged_literal.js Thu Sep 28 18:30:35 2017 +0530 @@ -0,0 +1,83 @@ +/* + * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * - Neither the name of Oracle nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS + * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * This sample demonstrates the use of es6 tagged template literal to + * create a java object. A XML DOM Document object is created from + * String using es6 tagged template literal. + * + * Usage: + * jjs --language=es6 dom_tagged_literal.js + */ + +// Java types used +const BAIS = Java.type("java.io.ByteArrayInputStream") +const DocBuilderFac = Java.type("javax.xml.parsers.DocumentBuilderFactory") +const DOMSource = Java.type("javax.xml.transform.dom.DOMSource") +const StreamResult = Java.type("javax.xml.transform.stream.StreamResult") +const StringWriter = Java.type("java.io.StringWriter") +const TransformerFactory = Java.type("javax.xml.transform.TransformerFactory") + +function DOM(str) { + var docBuilder = DocBuilderFac.newInstance().newDocumentBuilder() + docBuilder.validating = false + return docBuilder["parse(java.io.InputStream)"](new BAIS(String(str).bytes)) +} + +// es6 tagged template literal to create DOM from +// multi-line XML string + +const dom = DOM` + + world +` + +// access DOM elements +const foo = dom.documentElement +print(foo.tagName) +const bar = foo.getElementsByTagName("bar").item(0) +print(bar.tagName) +print(bar.getAttribute("title")) + +// modify DOM +foo.setAttribute("name", "nashorn") +foo.appendChild(dom.createElement("test")) + +// serialize DOM to XML string +function domToXML(d) { + const transformer = TransformerFactory.newInstance().newTransformer() + const res = new StreamResult(new StringWriter()) + transformer.transform(new DOMSource(d), res) + return res.writer.toString() +} + +// serialize DOM to a String & print +print(domToXML(dom))