Re: Generator with XMLFilterImpl

Hi Mansour,

2012/12/6 Mansour Al Akeel <[email protected]>

> Hello all,
> I am using C2.2 for this project, and I need to add some functionality
> to the current file generator (ie, logging and warning for broken
> links). I know this can be done in a transformer,
> but since it's required in many places, I want it in the Generator.
>

> Since the generator, generates SAX events, the simplest way is to
> insert an XMLFilterImpl that does the logging, between the generator
> and the consumer. For example:


I think that use a Transformer is the Cocoon way and simplest (no need of
java code).

<map:pipeline match="myCustomFileGenerator/**">
  <map:generator src="{1}"/>
  <map:transform src="yourXSLT"/>
  <mao:serialize/>
</map:pipeline>

Then you can use from other pipelines in the same sitemap like this:

<map:pipeline match="my/service">
  <map:generate src="cocoon:/myCustomFileGenerator/your/file/to/consume"/>
  ....

From another block you can consume also with the sevlet: protocol, just add
the name of the block with the service you want to consume:
<map:pipeline match="my/service">
  <map:generate
src="servlet:myBlock:/myCustomFileGenerator/your/file/to/consume"/>



> Currently:
>
> FileGenerator --> events ---> XMLConsumer
>
> I need it to be:
>
> FileGenerator --> events --> XMLFilterImpl ---> XMLConsumer
> OR
> FileGenerator --> events ---> XMLConsumer --> XMLFilterImpl
>
> The issue is I couldn't find any example on connecting and setting up
> a filter between the generator and the consumer.
> Additionally, setting the contentHandler doesn't seem to have any
> effect. Currently this is what I have and the events are not passing
> through LinkValidator Filter.
>
>
> public class MyGenerator extends FileGenerator {
>
>         @Override
>         public void setup(SourceResolver resolver, Map objectModel, String
> src, Parameters parameters) throws ProcessingException, SAXException,
> IOException {
>
>                 super.setup(resolver, objectModel, src, parameters);
>
>                 LinkValidator validator = new
> LinkValidator(this.contentHandler);
>
>                 this.setContentHandler(validator);
>
>         }
>
>         @Override
>         public void generate() throws IOException, SAXException,
> ProcessingException {
>                 super.generate();
>         }
>
> }
>
>
> Thank you
>

If you have implemented the XMLFilter already, you can easily transform
into a Cocoon transformer, the interface is very similar.

Salu2.


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