[moving to dev list]
Jim Fuller wrote:
From: Robert Koberg [mailto:[EMAIL PROTECTED] Sent: 29 January 2004 02:49
To: user@ant.apache.org
Subject: howto trigger an Ant build within java
I am looking into using Ant (v1.6.0) more in my webapp so I can offer offline publishing equivalents. I am transforming some config XML into a build file. I then want to load that build file into a new org.apache.tools.ant.Project. The build.xml gets produce properly (it runs successfully from the command line).
So the transformation of config file is happening in your app which ultimately generates a build file, which in turn you would like to simply run ant on ?
The configs are held in memory(jdom) and eventually I would like to use /something/ like a chained transformation to go from the configs to an ant build in memory and run the build on a user chosen target. I would use the build file to present a 'nav' tree similar to what eclipse does. The user clicks on a target to do things like generate a site/folder/page or promote to a vhost stage (local or remote) based on their config.
How do I load the build file and create an ant project, then trigger a particular target to execute? The build file uses only Core Tasks (and an xmlcatalog). Is there a simple example somewhere? I have tried
Hello Rob,
If you are physically generating the build file then just use the
launcher in the
http://nagoya.apache.org/gump/javadoc/ant/build/javadocs/index.html
org.apache.tools.ant.launch package. Though perhaps you want more
control
yes, more control
Which is where I can highly recc the use of jelly http://jakarta.apache.org/commons/jelly/
I will look into this.
I have found that there are some 'gotchas' with such dynamic instantiation and running of a build direct from ant api, though this could be down to my own limited knowledge.
Yes, I have seen some warnings on this. I was hoping there would be a way to do this with ant and still be safe. I will move this to the dev list and see if someone there can help.
best, -Rob
Cheers, Jim Fuller
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