Hi Simone, This sounds useful. But it's not really clear to me as to how this differs from the Stringtemplate generator which is also part of C3.
Robby -----Original Message----- From: simone.trip...@gmail.com [mailto:simone.trip...@gmail.com] On Behalf Of Simone Tripodi Sent: Thursday, December 15, 2011 5:25 PM To: dev@cocoon.apache.org Subject: [C3] new pipeline component: variabelExpander Hi all guys, I just committed r1214835 a new component I need for work, so I thought it would have been a good idea contributing back to OSS since C3 is the foundation of the XML processor I am writing. Basically, I needed to put variables inside our XML document that can be replaced depending by the context the pipeline works, so the idea came from Ant/Maven and some code I already did in Commons-Digester, using the ${} marker for variables have to be expanded. Using that new component is very simple: given the XML <project> <target> <delete dir="${build.home}" /> <delete dir="${dist.home}" /> <echo>A property '${text.property}' inside the text</echo> </target> </project> users can define their variables (in form of Properties/Map<String,String>): Properties variables = new Properties(); variables.setProperty( "build.base", "/Users/cocoon" ); variables.setProperty( "build.home", "${build.base}/workspace" ); variables.setProperty( "dist.home", "${build.base}/downloads" ); variables.setProperty( "text.property", "Cocoon3 rocks!" ); then creating and run their pipeline adding the VariableExpander: newNonCachingPipeline().setURLGenerator( getClass().getResource( "/variables-expander.xml" ) ) .addVariableExpander( variables ) .addSerializer() .withEmptyConfiguration() .setup( System.out ) .execute(); the XML document will be processed by the next component in the pipeline will look like: <project> <target> <delete dir="Users/cocoon/workspace" /> <delete dir="Users/cocoon/download" /> <echo>A property 'Cocoon3 rocks!' inside the text</echo> </target> </project> WDYT? I hope it will be useful for you as well it is for me :P Have a nice day, all the best! -Simo http://people.apache.org/~simonetripodi/ http://simonetripodi.livejournal.com/ http://twitter.com/simonetripodi http://www.99soft.org/
