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[Acceleo] Howto process the output before it is saved to a file [message #666745]

Fri, 22 April 2011 06:47

Martin Taal

Messages: 5468
Registered: July 2009

Senior Member

Hi,
For Texo I do some postprocessing of the generated output before the output is saved to a file:
- I do formatting and import resolving of the generated java file
- Use jmerge to support merging of generated content with manual content

Where I do this I need a handle to the file and it should be possible to change the generated output before saving it to
the file.

Is there a specific place in Acceleo where I can implement this (a listener?)? I call Acceleo from java, so not through
the IDE.

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Re: [Acceleo] Howto process the output before it is saved to a file [message #666754 is a reply to message #666745]

Fri, 22 April 2011 07:58

Stephane Begaudeau

Messages: 458
Registered: April 2010
Location: Nantes (France)

Senior Member

Hi Martin,

In order to manipulate the generated output before the moment we save it in a file, you have two solutions:

1- You can change the strategy used for the generation from a default strategy to a preview strategy. With the preview strategy we won't generate the file, we will just return a map containing the generated content of each file. You can then manipulate those String and then you can write them in a file. You can change the generation strategy from the generated Java launcher. Then, the method generate will return the map containing the result of the generation.

2- You can also create a custom strategy, have a look at org.eclipse.acceleo.engine.generation.strategy.IAcceleoGener ationStrategy and org.eclipse.acceleo.engine.generation.strategy.DefaultStrate gy for more information. Strategies are used to determined what should be done with the generated content.

Stephane Begaudeau, Obeo
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Twitter: @sbegaudeau
Acceleo wiki: http://wiki.eclipse.org/Acceleo
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