CamelRoute from activemq to cxfrs

[lusa]

Hi everybody,

I have some problem with my spring camel context route.

I must call a cxfrs method without any parameters but it seems not to work correctly.

My spring rout is like this:

<camel:route id="jmsToCxfrs" trace="true">

            <camel:from uri="activemq:mqA"/>

            <!-- Use cxf client proxy -->

            <camel:setHeader headerName="CamelCxfRsUsingHttpAPI">

                <camel:constant>False</camel:constant>

            </camel:setHeader>

            <!-- call getXXX method -->

            <camel:setHeader headerName="operationName">

                <camel:constant>getXXX</camel:constant>

            </camel:setHeader>

            <!-- Response is a XXX object -->

            <camel:setHeader headerName="CamelCxfRsResponseClass">

                <camel:constant>XXX.class</camel:constant>

            </camel:setHeader>

            <!-- set body to null (method without any parameters) -->

           <!-- <camel:setBody>

                <camel:constant/>

            </camel:setBody> -->

            <camel:to uri="cxfrs://bean://cxfService"/>         

        </camel:route>

But when it want to call my method, I have an exception:

java.lang.NoSuchMethodException: Can find the method getXXX with these parameter

     at org.apache.camel.component.cxf.jaxrs.CxfRsProducer.findRightMethod(CxfRsProducer.java:221)

How can I say to camel that my method don't need any parameters?

Thanks a lot for your help

Edited by: lusa on Mar 10, 2011 7:50 AM

Comment , camel:setBody to have body to null

[lusa]

Hi everybody,

I have test my issue with the org.apache.camel.Processor but I have same error:

<camel:route id="jmsToCxfrs" trace="true">

            <camel:from uri="activemq:mqA"/>

            <camel:process ref="cxfProcessor"/>

</camel:route>

And here are the processor:

public void process(Exchange exchange) throws Exception {

        exchange.setPattern(ExchangePattern.InOut);

        Message inMessage = exchange.getIn();

        inMessage.setHeader(CxfConstants.CAMEL_CXF_RS_USING_HTTP_API, Boolean.FALSE);

        inMessage.setHeader(CxfConstants.OPERATION_NAME, "getXXX");

        inMessage.setHeader(CxfConstants.CAMEL_CXF_RS_RESPONSE_CLASS, XXX.class);

        inMessage.setBody(null);

}

This produce the same exception:

java.lang.NoSuchMethodException: Can find the method getXXX with these parameter http://class org.apache.camel.component.jms.JmsMessage

at org.apache.camel.component.cxf.jaxrs.CxfRsProducer.findRightMethod(CxfRsProducer.java:221).

Is it possible to call a cxfrs method without parameters?

Thanks a lot for your help,

LuSa

[davsclaus]

Hi

Yeah looks like the source code mandates a parameter. I will log an enhancement.

[davsclaus]

Ticket

http://fusesource.com/issues/browse/MR-432

[lusa]

Hi davsclaus ,

Thanks for your reply, for the moment I have make my own patch like this:

In my Processor I have add my own TypeConverter:

public class CXFConverter implements TypeConverter {

    @SuppressWarnings({"unchecked"})

    @Override

    public  type, Exchange exchange, Object value) throws NoTypeConversionAvailableException {

        return convertTo(type, value);

    }

}

and I have set it like this:

((SpringCamelContext) inMessage.getExchange().getContext()).setTypeConverter(new CXFConverter());

So my custom Processor is now:

public class CXFProcessor implements Processor {

    @Override

    public void process(Exchange exchange) throws Exception {

        exchange.setPattern(ExchangePattern.InOut);

        Message inMessage = exchange.getIn();

        ((SpringCamelContext) inMessage.getExchange().getContext()).setTypeConverter(new CXFConverter());

        inMessage.setHeader(CxfConstants.CAMEL_CXF_RS_USING_HTTP_API, Boolean.FALSE);

        inMessage.setHeader(CxfConstants.OPERATION_NAME, "getXXX");

        inMessage.setHeader(CxfConstants.CAMEL_CXF_RS_RESPONSE_CLASS, XXX.class);

        inMessage.setBody(null);

    }

}

Greetings,

LuSa

[davsclaus]

Hi

Thanks for posting the workaround.