Hi
Yeah but do not use DataFormat but use your own POJO that just does what
Camel does to invoke the real marshaller / unmarshaller logic.

You do not have to try shoehorn this into DataFormat that cannot work
without Exchange.
Use POJO and let Camel invoke your POJO as a "data format"



On Thu, Jun 18, 2009 at 11:21 AM, Charles Moulliard <cmoulli...@gmail.com>wrote:

> This is what I have done but unfortunately, Exchange is a required
> parameter
> in both methods of DataFormat (
>
> http://camel.apache.org/maven/camel-core/apidocs/org/apache/camel/model/dataformat/DataFormatType.html
> ):
>
>  void *marshal<
> http://camel.apache.org/maven/camel-core/apidocs/org/apache/camel/model/dataformat/DataFormatType.html#marshal%28org.apache.camel.Exchange,%20java.lang.Object,%20java.io.OutputStream%29
> >
> *(Exchange<
> http://camel.apache.org/maven/camel-core/apidocs/org/apache/camel/Exchange.html
> >
> exchange,
> Object<
> http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html?is-external=true
> >
> graph,
> OutputStream<
> http://java.sun.com/j2se/1.5.0/docs/api/java/io/OutputStream.html?is-external=true
> >
>  stream)
>          Marshals the object to the given Stream.
>
>  Object<
> http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html?is-external=true
> >
> *unmarshal<
> http://camel.apache.org/maven/camel-core/apidocs/org/apache/camel/model/dataformat/DataFormatType.html#unmarshal%28org.apache.camel.Exchange,%20java.io.InputStream%29
> >
> *(Exchange<
> http://camel.apache.org/maven/camel-core/apidocs/org/apache/camel/Exchange.html
> >
> exchange,
> InputStream<
> http://java.sun.com/j2se/1.5.0/docs/api/java/io/InputStream.html?is-external=true
> >
>  stream)
>          Unmarshals the given stream into an object.
>
>
>
> On Thu, Jun 18, 2009 at 10:41 AM, Claus Ibsen <claus.ib...@gmail.com>
> wrote:
>
> > Hi
> > The Data Format abstraction in Camel is a thin layer. So you could create
> > your own POJO layer you can invoke.
> > And in the impl of the POJO layer you more or less do the same as Camel
> > does, but without the Exchange as parameter.
> >
> >
> >
> > On Thu, Jun 18, 2009 at 9:58 AM, Charles Moulliard <cmoulli...@gmail.com
> > >wrote:
> >
> > > Hi,
> > >
> > > I would like to know if it is possible for a camel bean to call an
> > > unmarshall/marshall endpoint/process (I don't know if it must be
> > > considerate
> > > as an endpoint or process) from a Camel bean ?
> > >
> > > In a normal routing, we call unmarshall/marshall like this :
> > >
> > >  <route>
> > >    <from uri="direct:start"/>
> > >    <marshal ref="myJaxb"/>
> > >    <to uri="direct:marshalled"/>
> > >  </route>
> > >
> > > What I would like to do is to declare marshal/unmarshal in a spring
> > > DSL file (if it possible) and call it inside a bean ?
> > > Why, because the payload to be marshalled/unmarshalled is part of an
> > > object and I would like to keep this object during the pipeline route.
> > >
> > > ex
> > >
> > > <from uri=file://temp/data/>
> > > <convertBodyTo type="java.io.String"/>
> > > <bean ref="ServiceHelper" method="createRequest" /> // The Request
> > > object is an object used by Hibernate and will contain the content of
> > > the file. So this object cannot be unmarshalled/marshalled by its
> > > content well
> > > <bean ref="ServiceHelper" method="parseRequest" /> // Method who will
> > > call the unmarshall/marshall endpoint / process defined in Spring DSL
> > > file. This method send the string content to the endpoint
> > > who will unmarshall by example the content into a collection of
> > > Objects. The result is saved into the object Request
> > > <bean ref=ServiceHelper" method="saveRequest"/>
> > >
> > > because it is not possible to do this without loosing the Request
> object
> > >
> > > <from uri=file://temp/data/>
> > > <convertBodyTo type="java.io.String"/>
> > > <bean ref="ServiceHelper" method="createRequest" />
> > > <unmarshall ref="csbBindyDataFormat"/>
> > > <bean ref=ServiceHelper" method="saveRequest"/>
> > >
> > >
> > > Regards,
> > >
> > > Charles Moulliard
> > > Senior Enterprise Architect
> > > Apache Camel Committer
> > >
> > > *****************************
> > > blog : http://cmoulliard.blogspot.com
> > >
> >
> >
> >
> > --
> > Claus Ibsen
> > Apache Camel Committer
> >
> > Open Source Integration: http://fusesource.com
> > Blog: http://davsclaus.blogspot.com/
> > Twitter: http://twitter.com/davsclaus
> >
>



-- 
Claus Ibsen
Apache Camel Committer

Open Source Integration: http://fusesource.com
Blog: http://davsclaus.blogspot.com/
Twitter: http://twitter.com/davsclaus

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