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Posted to users@camel.apache.org by mta38 <mt...@orange-ftgroup.com> on 2009/02/04 11:39:03 UTC

Write routing condition in xml config file

Hi all,
Is someone can say me how to test a header exchange value in a xml config
file.
For example, if the header TEST exists in my " IN "message and its value is
10, I want to do the following:

<route>
	<from uri="…"
	<choice>
		<when>
			In.header.TEST==10
			<to uri="…"/>
		</when>

		…
	</choice>

</route>
Any help are welcome,

Best regards

Mta38

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Re: Write routing condition in xml config file

Posted by mta38 <mt...@orange-ftgroup.com>.

I found the answer by myself
Seems (but i'm not sure :-)) that choice processor is not the right
processor to use.
In fact, if we use <filter> instead like that :

<route>
<from uri="..." />

			<filter>
				<el>${in.headers['TEST '] == 10}</el>
				<to uri="...." />
			</filter>

...
</route>

the behaviour is right as expected =).

Mta38



mta38 wrote:
> 
> Hi all,
> Is someone can say me how to test a header exchange value in a xml config
> file.
> For example, if the header TEST exists in my " IN "message and its value
> is 10, I want to do the following:
> 
> <route>
> 	<from uri="…"
> 	<choice>
> 		<when>
> 			In.header.TEST==10
> 			<to uri="…"/>
> 		</when>
> 
> 		…
> 	</choice>
> 
> </route>
> Any help are welcome,
> 
> Best regards
> 
> Mta38
> 
> 

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Re: Write routing condition in xml config file

Posted by Claus Ibsen <cl...@gmail.com>.

On Wed, Feb 4, 2009 at 11:39 AM, mta38 <mt...@orange-ftgroup.com> wrote:
>
> Hi all,
> Is someone can say me how to test a header exchange value in a xml config
> file.
> For example, if the header TEST exists in my " IN "message and its value is
> 10, I want to do the following:
>
> <route>
>        <from uri="…"
>        <choice>
>                <when>
>                        In.header.TEST==10
>                        <to uri="…"/>
>                </when>
>
>                …
>        </choice>
>
> </route>
> Any help are welcome,
See this wiki page:
http://camel.apache.org/content-based-router.html

The $ notation will get the header.

So you should do:
<xpath>$TEST = '10'</xpath>

Otherwise you can try some of the other languages
http://camel.apache.org/languages.html

... that can do = comparison, such as EL.
http://camel.apache.org/el.html

And the xpath is documented here:
http://camel.apache.org/xpath.html



>
> Best regards
>
> Mta38
>
> --
> View this message in context: http://www.nabble.com/Write-routing-condition-in-xml-config-file-tp21828008s22882p21828008.html
> Sent from the Camel - Users mailing list archive at Nabble.com.
>
>



-- 
Claus Ibsen
Apache Camel Committer

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