... just updated the enricher documentation with an example aggregation
strategy.
Martin
Peter Maas schrieb:
On Mar 3, 2009, at 8:10 , Claus Ibsen wrote:
On Tue, Mar 3, 2009 at 7:56 AM, Peter Maas <[email protected]> wrote:
I think you've solved my problem. I was looking at the 'in' message
of the
resource exchange, whereas I should be looking at the 'out' message.
And,
btw, yes the CinemaQueryAssembler is thread-safe, I actually think
all code
should be threadsafe ;)
Yeah if we could just got some basic annotations in the JDK, eg
@ThreadSafe then you could document it like that :)
Maybe we need to improve the wiki for using the enricher to state you
should check the OUT for the response.
http://camel.apache.org/content-enricher.html
Yeah, I actually think the documentation of the content-enricher is
quite sparse, a simple example AggregationStrategy might help a lot:
public class ProgramMerger implements AggregationStrategy {
public Exchange aggregate(Exchange original, Exchange resource) {
Document org = original.getIn().getBody(Document.class);
Document additional = resource.getOut().getBody(Document.class);
// create the new 'enriched' message
Document result = ...;
original.getOut().setBody(result);
return original;
}
}
On Tue, Mar 3, 2009 at 7:02 AM, Martin Krasser
<[email protected]>wrote:
Hi Peter,
the route looks good to me.
* The in-messages of the original exchange and the resource
exchange are
always identical. The out-message of the resource exchange will
contain the
result from 'direct:enrichMovie'.
* What message exchange pattern do you use when you test (print the
contents of) the 'direct:enrichMovie' route?
* Is the CinemaQueryAssembler thread-safe? You're doing parallel
processing
of split messages.
Martin
Peter Maas schrieb:
Hi list,
I'm developing a proof-of-concept application using Camel 2.0.
Everything
seems to work just find... except for the content-enricher. Both the
resource exchange passed to my AggregationStrategy look identical.
Whilst if
I print the contents of the resource route I the the correct xml
in the
exchange after calling the http service. My routes look like this:
// split messages when received from the incoming mq
// enrich if move. Always stor in database
from("activemq:topic:incomingVPROGuide")
.split(vpro.xpath("//vpro:program")).parallelProcessing(true)
.choice()
.when(vpro.xpath("/vpro:progr...@ismovie = 'true']"))
.enrich("direct:enrichMovie", new ProgramMerger())
.to("direct:save")
.otherwise().to("direct:save");
// the generic save route
from("direct:save")
.setHeader("xmldb.resource.name",
vpro.xpath("//vpro:program/@id", String.class))
.process(sanitize("xmldb.resource.name"))
.to("xmldb:/programs");
// route to retrieve data from external
// rest service
from("direct:enrichMovie")
.setHeader("title",
vpro.xpath("/vpro:program/vpro:title[1]/text()", String.class))
.setHeader("director", vpro.xpath("//vpro:pers...@urn =
'urn:mpeg:mpeg7:cs:RoleCS:2001:DIRECTOR' and
1]/vpro:familyName/text()",
String.class))
.setHeader("year", vpro.xpath("//vpro:year[1]/text()",
String.class))
.process(new CinemaQueryAssembler())
.to("http://cinema.test.vpro.nl/api/1/rest/movie/find.xml";);
The xmldb producer is a patched version of the camel-extra project.
Everything works fine, apart from the enricher...
Any hints?
kind regards,
Peter Maas
--
Claus Ibsen
Apache Camel Committer
Open Source Integration: http://fusesource.com
Blog: http://davsclaus.blogspot.com/
