| author | rwestberg |
| Fri, 01 Jun 2018 10:15:48 +0200 | |
| changeset 50336 | 1b6ea6bcd21a |
| parent 47216 | 71c04702a3d5 |
| permissions | -rw-r--r-- |
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8144473: Nashorn code assumes NashornCallSiteDescriptor always
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#// Usage: jjs -cp dom_linker.jar -scripting dom_linker_gutenberg.js |
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/* |
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* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* - Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* - Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* - Neither the name of Oracle nor the names of its |
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* contributors may be used to endorse or promote products derived |
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* from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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8144473: Nashorn code assumes NashornCallSiteDescriptor always
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parents:
34452
diff
changeset
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// This script depends on DOM Element dynalink linker! |
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cc9f05d3caf0
8144473: Nashorn code assumes NashornCallSiteDescriptor always
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parents:
34452
diff
changeset
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// Without that linker, this script will fail to run! |
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8144473: Nashorn code assumes NashornCallSiteDescriptor always
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parents:
34452
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changeset
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// Simple example that demonstrates reading XML Rss feed |
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// to generate a HTML file from script and show it by browser. |
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// Uses XML DOM parser along with DOM element pluggable dynalink linker |
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// for ease of navigation of DOM (child) elements by name. |
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// Java classes used |
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var DocBuilderFac = Java.type("javax.xml.parsers.DocumentBuilderFactory");
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var Node = Java.type("org.w3c.dom.Node");
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var File = Java.type("java.io.File");
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var FileWriter = Java.type("java.io.FileWriter");
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var PrintWriter = Java.type("java.io.PrintWriter");
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// parse XML from uri and return Document |
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function parseXML(uri) {
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var docBuilder = DocBuilderFac.newInstance().newDocumentBuilder(); |
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return docBuilder["parse(java.lang.String)"](uri); |
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} |
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// generate HTML using here-doc and string interpolation |
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function getBooksHtml() {
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var doc = parseXML("http://www.gutenberg.org/cache/epub/feeds/today.rss");
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// wrap document root Element as script convenient object |
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var rss = doc.documentElement; |
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var str = <<HEAD |
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<html> |
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<title>${rss._channel._title._}</title>
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<body> |
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<h1>${rss._channel._description._}</h1>
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<p> |
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Published on ${rss._channel._pubDate._}
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</p> |
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HEAD |
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var items = rss._channel._item; |
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for each (var i in items) {
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str += <<LIST |
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<dl> |
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<dt><a href="${i._link._}">${i._title._}</a></dt>
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<dd>${i._description._}</dd>
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</dl> |
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LIST |
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} |
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str += <<END |
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</body> |
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</html> |
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END |
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return str; |
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} |
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// write the string to the given file |
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function writeTo(file, str) {
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var w = new PrintWriter(new FileWriter(file)); |
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try {
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w.print(str); |
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} finally {
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w.close(); |
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} |
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} |
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// generate books HTML |
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var str = getBooksHtml(); |
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// write to file. __DIR__ is directory where |
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// this script is stored. |
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var file = new File(__DIR__ + "books.html"); |
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writeTo(file, str); |
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// show it by desktop browser |
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try {
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var Desktop = Java.type("java.awt.Desktop");
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Desktop.desktop.browse(file.toURI()); |
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} catch (e) {
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print(e); |
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} |