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From Berin Loritsch <blorit...@apache.org>
Subject Re: [RT] Fixing the CLI
Date Tue, 04 Mar 2003 17:25:50 GMT
Upayavira wrote:
> On Mon, 24 Feb 2003 Nicola Ken wrote:
> 
>>Traversing optimizations
>>-------------------------
>>
>>As you know, the Cocoon CLI gets the content of a page 3 times.
>>I had refactored these three calls to Cocoon in the methods (in call
>>order):
>>....... 
>>Now, with the -e option we basically don't need step 2. If done 
>>correctly, this will increase the speed! :-)
>>
>>So we have two steps left: getting links and getting the page.
>>If we can make them into a single step we're done.
>>
>>Cocoon has the concept of pluggable pipelines. And each pipeline is
>>responsible of connecting the various components. If we used a
>>pipeline that simply inserts between the source and the next
>>components a pipe that records all links
>>(org.apache.cocoon.xml.xlink.ExtendedXLinkPipe.java) into the
>>Enviroment, we can effectively get both the result and the links in a
>>single pass.
> 
> 
> I have gone ahead and coded my attempt at Nicola Ken's CLI traversal 
> optimisation. I didn't use pluggable pipelines. Maybe I should have.
> 
> Basically, if you switch off extension checking, then it is possible to gather links

> from within the pipeline. So, I hunted out the locations in the pipeline code 
> (SerializeNode.java) where the LinkTranslator is added to the pipeline, and added 
> an optional LinkGatherer in its place which, instead of translating links using a 
> map in the ObjectModel, places the found links into a List in the ObjectModel. That 
> list is then available to the CLI afterwards, which then adds the URIs to the list of

> links to be scanned. And it seems to work.
> 
> This means that so long as one does not want to confirm that extensions match 
> the mime-type of the document, one can build a site generating each page only 
> once, which is great.
> 
> So what now? Is anyone interested in seeing it?

Absolutely!


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