Hello,
I figured it out and yes it is possible to set message headers and exchange
properties in camel xslt.
I created a separate java file with content (see the methods that are marked
static):
package com.intris.camel.component.xslt;
public class xsltmsg {
public static void setHeader (org.apache.camel.Message message, String name,
String value) {
message.setHeader(name, value);
}
public static void setProperty (org.apache.camel.Exchange exchange, String
name, String value) {
exchange.setProperty(name, value);
}
}
I created a xslt file:
<?xml version='1.0'?>
<xsl:stylesheet
version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:xsltmsg="java:com.intris.camel.component.xslt.xsltmsg"
exclude-result-prefixes="xsltmsg" >
<xsl:param name="in"/>
<xsl:param name="out"/>
<xsl:param name="exchange"/>
<xsl:template match="/">
<!-- <test>ronny aerts</test> -->
<!-- setting message headers on the "in" does not seem to work -->
<xsl:value-of select="xsltmsg:setHeader($in, 'bbb-1', 'ronny.aerts.1')"/>
<xsl:value-of select="xsltmsg:setHeader($out, 'bbb-2', 'ronny.aerts.2')"/>
<xsl:value-of select="xsltmsg:setProperty($exchange, 'aaa', 'ronny en gerd')"/>
<!-- <test2>after</test2> -->
</xsl:template>
</xsl:stylesheet>
My route looks like:
<route id="test-xslt">
<from uri="timer://xslt-timer?repeatCount=1" />
<pollEnrich uri="file://example-data?fileName=test.xml&noop=true"
timeout="2500" />
<convertBodyTo type="java.lang.String" />
<to
uri="log://before?showExchangePattern=false&showHeaders=true&showProperties=true&multiline=true"
/>
<to uri="xslt://classpath:test.xsl?saxon=false" />
<to
uri="log://after?showExchangePattern=false&showHeaders=true&showProperties=true&multiline=true"
/>
<log message="${routeId} end of route" />
</route>
There is still one problem with the above:
net.sf.saxon.trans.XPathException: Cannot find a matching 3-argument function
named {java:com.intris.camel.component.xslt.xsltmsg}setHeader(). Note that
direct calls to Java methods are not available under Saxon-HE
It seems that camel uses the saxon home edition and with the home edition it
not possible to call java from xslt.
I added a dependency to my project pom and now it works fine.
<dependency>
<groupId>net.sf.saxon</groupId>
<artifactId>saxon</artifactId>
<version>[8.7,)</version>
</dependency>
A part of the output is:
, Properties: {aaa=ronny en gerd, ...
, Headers: {bbb-2=ronny.aerts.2, ...
The setting of a header on the in does not seem to have an effect.
I would be very handy if there would such a xslt wrapper class for settings
message headers, similar to one I created.
--
Kind regards,
Ronny Aerts - Intris nv - Wapenstilstandlaan 47, 2600 Berchem, Belgium
R&D Integration Architect
Prince II certified
Tel: +32-3-326.50.75
-----Original Message-----
From: Ronny Aerts [mailto:[email protected]]
Sent: dinsdag 4 februari 2014 9:41
To: [email protected]
Subject: RE: can I set a message header or exchange property inside an xslt?
Hello Claus,
Thank you for the feedback.
I searched in the xslt test files and found the
org.apache.camel.component.xslt.XsltTransformingExceptionTest.java in
combination with org.apache.camel.component.xslt.MyEcho.java and
org/apache/camel/component/xslt/transformCallEcho.xsl.
The xsl file declares
xmlns:echo="xalan://org.apache.camel.component.xslt.MyEcho" and later on the
<xsl:value-of select="echo:echoString(string(name))"></xsl:value-of> statement
is called to activate the java code.
As far as I known, this approach is only possible with static methods (in the
java code) and therefore it does not seem possible with camel out of the box. I
will try to work something.
--
Kind regards,
Ronny Aerts - Intris nv - Wapenstilstandlaan 47, 2600 Berchem, Belgium R&D
Integration Architect Prince II certified
Tel: +32-3-326.50.75
-----Original Message-----
From: Claus Ibsen [mailto:[email protected]]
Sent: maandag 3 februari 2014 19:00
To: [email protected]
Subject: Re: can I set a message header or exchange property inside an xslt?
Hi
You likely can.
Though I can remember how that is possible.
Try look at the unit tests
https://github.com/apache/camel/tree/master/camel-core/src/test/java/org/apache/camel/component/xslt
And we love contributions. People is welcome to add details on the xslt docs
how to do this http://camel.apache.org/contributing
On Mon, Feb 3, 2014 at 3:16 PM, Ronny Aerts <[email protected]> wrote:
> Hello camel community,
>
> I'm working on a project where it would be very handy to me if I can set a
> message header or exchange property inside the execution of an xslt producer.
> Is this possible?
>
> I know that the "exchange" and "in" are passed as parameter to the
> transformation.
>
> --
> Kind regards,
> Ronny Aerts<mailto:[email protected]> - Intris nv -
> Wapenstilstandlaan 47, 2600 Berchem, Belgium R&D Integration Architect
> Prince II certified
> Tel: +32-3-326.50.75
>
>
> Intris nv
> Wapenstilstandlaan 47
> B-2600 Berchem
> Tel. +32 3 326 50 75
> Fax +32 3 326 42 23
> www.intris.be<http://www.intris.be/>
>
> DISCLAIMER
> This is an e-mail from Intris. The information contained in this
> communication is intended solely for use by the individual or entity to whom
> it is addressed.
> Use of this communication by others is prohibited. If the e-mail message was
> sent to you by mistake, please notify
> [email protected]<mailto:[email protected]>, destroy it without reading,
> using, copying or disclosing its contents to any other person.
> We accept no liability for damage related to data and/or documents which are
> communicated by electronic mail.
--
Claus Ibsen
-----------------
Red Hat, Inc.
Email: [email protected]
Twitter: davsclaus
Blog: http://davsclaus.com
Author of Camel in Action: http://www.manning.com/ibsen Make your Camel
applications look hawt, try: http://hawt.io Intris nv Wapenstilstandlaan 47
B-2600 Berchem
Tel. +32 3 326 50 75
Fax +32 3 326 42 23
www.intris.be<http://www.intris.be/>
DISCLAIMER
This is an e-mail from Intris. The information contained in this communication
is intended solely for use by the individual or entity to whom it is addressed.
Use of this communication by others is prohibited. If the e-mail message was
sent to you by mistake, please notify
[email protected]<mailto:[email protected]>, destroy it without reading, using,
copying or disclosing its contents to any other person.
We accept no liability for damage related to data and/or documents which are
communicated by electronic mail.
Intris nv
Wapenstilstandlaan 47
B-2600 Berchem
Tel. +32 3 326 50 75
Fax +32 3 326 42 23
www.intris.be<http://www.intris.be/>
DISCLAIMER
This is an e-mail from Intris. The information contained in this communication
is intended solely for use by the individual or entity to whom it is addressed.
Use of this communication by others is prohibited. If the e-mail message was
sent to you by mistake, please notify
[email protected]<mailto:[email protected]>, destroy it without reading, using,
copying or disclosing its contents to any other person.
We accept no liability for damage related to data and/or documents which are
communicated by electronic mail.
