Hi, My original Source for the Aggregator is in the attachment.
In my sitemap I put the following under the <generators>-Section:
<map:generator name="page" src="com.triplemind.asp.generator.PageGenerator"
label="content" pool-grow="20" pool-max="200"
pool-min="80"/>
Here is a version, where i removed all my stuff, to make it
easier to read:
package com.triplemind.asp.generator;
import org.apache.avalon.framework.parameters.Parameters;
import org.apache.avalon.framework.parameters.ParameterException;
import org.apache.cocoon.Constants;
import org.apache.cocoon.ProcessingException;
import org.xml.sax.SAXException;
import java.util.Map;
public class PageGenerator extends AbstractAggregator {
protected Parameters par = null;
public void setup(SourceResolver resolver, Map objectModel, String src,
Parameters par)
throws ProcessingException, SAXException, IOException {
this.par = par;
// Aggregieren
this.setRootElement("aggregated-directory", "", "");
// Seiten die Aggregiert werden sollen
// while(moreFiles) { // or something like that
// this.addPart(file, element, namespace, stripRoot, prefix);
this.addPart("cocoon:/filex.xml", "file-element", "", false, "");
// }
super.setup(resolver, objectModel, src, par);
}
public void recycle() {
this.par = null;
super.recycle();
}
}
hope, that will help you. Perhaps you can submit your DirectoryAggregator to
the cocoon project.
Christoph Gaffga
[EMAIL PROTECTED]
From: "icewind" <[EMAIL PROTECTED]>
Subject: Re: xinclude performance issues,
> Christoph,
> Thank you for responding to my question about
> performance issues with xinclude. I would like to see
> your aggregator code, as I will probably need to do
> something like that anyway so starting with something
> that works would be beneficial.
> Feel free to email it to my address (unless it is over
> 2 MB), or point me to a URL where I could download it;
> whatever is more convient for you.
> Again, thank you.
> --- Christoph Gaffga <[EMAIL PROTECTED]> wrote:
> > Hi,
> > We had the same Problem, instead of aggregating all
> > files from a directory
> > we had to aggregate all files/components from a list
> > in our DB.
> > The only solution we found, that would make sence in
> > terms of perfomance,
> > was to write our own Aggregator. You could simply
> > extend Cocoon Default
> > Aggregator to do so.
> > If you are interested in our code, I can send it to
> > you, but, as I said, it
> > doesn't aggregate a directory, but it's a good piece
> > of code to start with.
> > Christoph Gaffga
> > [EMAIL PROTECTED]
> > From: "icewind" <[EMAIL PROTECTED]>
> > Subject: xinclude performance issues,
> > > Let me describe what I am doing:
> > > I have a directory that contains .xml files. In my
> > > sitemap, I have a pipeline that starts with a
> > > DirectoryGenerator on this directory. I then have a
> > > transformation that takes the directorygenerator's
> > > output and puts some xi:include tags with xpointers to
> > > some tags in the xml files I am interested in. I
> > > then run the xinclude transformation and serialize to html.
> > > This is exactly what is described in this email to
> > > the list (i was involved in that original email):
> > > http://marc.theaimsgroup.com/?l=xml-cocoon-users&m=102617106411067&w=2
> > > There is a link to this email in the Cocoon XSLT FAQ
> > > question titled: "What's "wrong" with use of the
> > > document() function in Cocoon?"
> > > So, I'm using that method, and it works. The result is
> > > that I get an html page with the tags I pulled out
> > > with xinclude for each xml file. It works, but the
> > > performance is pretty terrible. I have approximately
> > > 30 xml files in the said directory, and the size that
> > > most of the files is around 30K. (there are a couple
> > > that are around 200K) I am pulling out 4 tags with
> > > xinclude. I have Cocoon version 2.0.3 and its running
> > > with tomcat on a dual 1ghz processor server with 1gb
> > > ram and raid disks.
> > > The time for the pipeline to execute is just under 14
> > > seconds, which is too long. (i measured using a
> > > stopwatch from the time I requested the page until the
> > > time i could see it).
> > > So, I have the usual questions:
> > > 1) If anyone else is using a similar setup, do you
> > > have similar issues?
> > > 2) What can I do to improve performance?
> > > Thanks for any suggestions.
PageGenerator.java
Description: Binary data
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