reactor templates and project ordering

["Mark R. Diggory" <md...@latte.harvard.edu>]

I'm slightly stumped with the reactor and project ordering. I'd really 
like it to iterate over my list of projects in a very specific order, 
but it seems to not enforce any sort of ordering.

Is there any way I can enforce an ordering?

for example

    <maven:reactor
      basedir="${basedir}"
      
includes="taglibraries/repast/project.xml,taglibraries/random/project.xml,taglibraries/io/project.xml,taglibraries/bcel/project.xml"
      postProcessing="true"
      ignoreFailures="true"
    />

    <fileScanner var="templates">
      <fileset dir="${basedir}/templates">
        <include name="*.xml"/>
      </fileset>
    </fileScanner>

    <j:forEach var="template" items="${templates.iterator()}">
     
      <j:set var="templateName" value="${template.name}"/>
      <echo>Processing ${templateName} template ...</echo>
   
      <velocity:merge
        name="${basedir}/xdocs/${templateName}"
        basedir="${basedir}/templates"
        template="${templateName}"/>

    </j:forEach>
  </goal>


I'm hoping that I can at least get the "templates" to spit out the list 
of projects in the same everytime, but each time I run this the ordering 
seems to change.

-thanks,
Mark Diggory





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Re: reactor templates and project ordering

["Mark H. Wilkinson" <mh...@kremvax.net>]

On Thu, 2003-04-03 at 21:37, Mark R. Diggory wrote:
> I'm trying to enforce an ordering on the POM's used in "templating" of 
> the navigation bar. This specific approach is built upon the db-site 
> demo at apache
> 
> http://db.apache.org/

I was trying to do exactly the same thing yesterday, but haven't made
much progress. It should be sufficient to sort $reactorProjects,
ordering by each projects name property, or by some other property
applied to each project, but I haven't worked out how to do that in
either jelly or velocity...

-Mark.


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Re: reactor templates and project ordering

["Mark R. Diggory" <md...@latte.harvard.edu>]

Jason van Zyl wrote:

>>Is there any way I can enforce an ordering?
>>    
>>
>
>Nope. I think you need a different tool than the reactor if you don't
>need the dependency ordering.
>
>We could certainly make a abstract tool with a pluggable strategies for
>ordering. The dependency ordering strategy would be what we need to the
>reactor but then you could also enforce whatever ordering you wanted. I
>only ever thought about dependency ordering myself.
>
>What's your use case if I may ask?
>
>  
>
You can see it easily at my site. http://repast-jellytag.sourceforge.net

I'm trying to enforce an ordering on the POM's used in "templating" of 
the navigation bar. This specific approach is built upon the db-site 
demo at apache

http://db.apache.org/

I could just copy the generated navigation.xml into each of my 
subprojects via a maven goal in each sub project to get at least a 
consistent ordering, but I'd rather have the ordering either 
consistently alpha-numeric or an order I can enforce, I'd like to keep 
it simple, I'm not quite ready to delve into creating my own plug-in or 
anything like that. I was just hoping for an attribute or something I 
could use to order the POM's used in building my navigation bars.

-Mark


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Re: reactor templates and project ordering

[Jason van Zyl <ja...@zenplex.com>]

On Thu, 2003-04-03 at 14:46, Mark R. Diggory wrote:
> I'm slightly stumped with the reactor and project ordering. I'd really 
> like it to iterate over my list of projects in a very specific order, 
> but it seems to not enforce any sort of ordering.

The only order that is necessary is one that satisfies the dependency
chain. It's a simple digraph which will often come out in a different
sequence, the only requirement that needs to be satisfied is the
dependency ordering not the overall order.

> Is there any way I can enforce an ordering?

Nope. I think you need a different tool than the reactor if you don't
need the dependency ordering.

We could certainly make a abstract tool with a pluggable strategies for
ordering. The dependency ordering strategy would be what we need to the
reactor but then you could also enforce whatever ordering you wanted. I
only ever thought about dependency ordering myself.

What's your use case if I may ask?

> 
> jvz.
> 
> Jason van Zyl
> jason@zenplex.com
> http://tambora.zenplex.org
> 
> In short, man creates for himself a new religion of a rational
> and technical order to justify his work and to be justified in it.
>   
>   -- Jacques Ellul, The Technological Society


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