| #// Usage: jjs -cp dom_linker.jar -scripting dom_linker_gutenberg.js |
| |
| /* |
| * Copyright (c) 2015, 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 script depends on DOM Element dynalink linker! |
| // Without that linker, this script will fail to run! |
| |
| // Simple example that demonstrates reading XML Rss feed |
| // to generate a HTML file from script and show it by browser. |
| // Uses XML DOM parser along with DOM element pluggable dynalink linker |
| // for ease of navigation of DOM (child) elements by name. |
| |
| // Java classes used |
| var DocBuilderFac = Java.type("javax.xml.parsers.DocumentBuilderFactory"); |
| var Node = Java.type("org.w3c.dom.Node"); |
| var File = Java.type("java.io.File"); |
| var FileWriter = Java.type("java.io.FileWriter"); |
| var PrintWriter = Java.type("java.io.PrintWriter"); |
| |
| // parse XML from uri and return Document |
| function parseXML(uri) { |
| var docBuilder = DocBuilderFac.newInstance().newDocumentBuilder(); |
| return docBuilder["parse(java.lang.String)"](uri); |
| } |
| |
| // generate HTML using here-doc and string interpolation |
| function getBooksHtml() { |
| var doc = parseXML("http://www.gutenberg.org/cache/epub/feeds/today.rss"); |
| // wrap document root Element as script convenient object |
| var rss = doc.documentElement; |
| |
| var str = <<HEAD |
| |
| <html> |
| <title>${rss._channel._title._}</title> |
| <body> |
| <h1>${rss._channel._description._}</h1> |
| <p> |
| Published on ${rss._channel._pubDate._} |
| </p> |
| |
| HEAD |
| |
| var items = rss._channel._item; |
| for each (var i in items) { |
| str += <<LIST |
| |
| <dl> |
| <dt><a href="${i._link._}">${i._title._}</a></dt> |
| <dd>${i._description._}</dd> |
| </dl> |
| |
| LIST |
| } |
| str += <<END |
| |
| </body> |
| </html> |
| |
| END |
| return str; |
| } |
| |
| // write the string to the given file |
| function writeTo(file, str) { |
| var w = new PrintWriter(new FileWriter(file)); |
| try { |
| w.print(str); |
| } finally { |
| w.close(); |
| } |
| } |
| |
| // generate books HTML |
| var str = getBooksHtml(); |
| |
| // write to file. __DIR__ is directory where |
| // this script is stored. |
| var file = new File(__DIR__ + "books.html"); |
| writeTo(file, str); |
| |
| // show it by desktop browser |
| try { |
| var Desktop = Java.type("java.awt.Desktop"); |
| Desktop.desktop.browse(file.toURI()); |
| } catch (e) { |
| print(e); |
| } |
