118 lines
3.6 KiB
JavaScript
118 lines
3.6 KiB
JavaScript
#// 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);
|
|
}
|