July 2004
Intermediate to advanced
479 pages
12h 30m
English
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Pipeline XML with Ant
Ant is an extensible, open source build tool written in Java and sponsored by Apache. It can also be used as a framework for performing a large variety of operations--including XML-related tasks--in a single step.
Ant (http://ant.apache.org) uses build files that are written in XML, and takes advantage of XML in a variety of ways. It’s a suitable (if not ideal) framework for XML pipelining—it’s open, mature, stable, readily available, widely known and used, easily extensible, and already amenable to XML processing. What else could you ask for?
In this hack, I’ll show you the XML structures in an Ant build file, named build.xml by default; talk about some common XML-related tasks that Ant can perform; and end with an example of XML pipelining.
To get the examples in this hack to work, you’ll need to download and install Ant Version 1.6.1 (or later) binaries from http://ant.apache.org/bindownload.cgi. Because you’ll be using an external task that validates with RELAX NG (http://www.relaxng.org) schemas, you’ll also need James Clark’s Jing (http://www.thaiopensource.com/relaxng/jing.html).
Validating an XML Document
Ant
has a task for validating XML documents called
xmlvalidate. By default, Ant validates with
Xerces. The XML document
valid.xml
is shown in Example 7-1.
Example 7-1. valid.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE time SYSTEM "time.dtd"> <!-- a time instant --> <time timezone="PST"> <hour>11</hour> <minute>59</minute> <second>59</second> ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.