Blueprint, Apache Camel and cxfrs - cxf

Question

I am trying to develop a rest service using blueprint, apache camel and apache cxf-rs - where the service implementation will be handled by camel.
The problem is the rest endpoint seems to not get allocated to camel.
This is the exception I get:
error occurred during starting Camel: CamelContext(blueprintContext)
due There is an endpoint already running on /crm.
My blueprint is as follows:
<?xml version="1.0" encoding="UTF-8"?>
<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:jaxrs="http://cxf.apache.org/blueprint/jaxrs"
xmlns:cxf="http://cxf.apache.org/blueprint/core"
xmlns:camel="http://camel.apache.org/schema/blueprint"
xsi:schemaLocation="
http://www.osgi.org/xmlns/blueprint/v1.0.0 http://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd
http://cxf.apache.org/blueprint/jaxrs http://cxf.apache.org/schemas/blueprint/jaxrs.xsd
http://cxf.apache.org/blueprint/core http://cxf.apache.org/schemas/blueprint/core.xsd
http://camel.apache.org/schema/blueprint/camel-blueprint.xsd">
<jaxrs:server id="customerService" address="/crm" staticSubresourceResolution="true">
<jaxrs:serviceBeans>
<ref component-id="customerSvc"/>
</jaxrs:serviceBeans>
<jaxrs:features>
<bean class="io.fabric8.cxf.endpoint.SwaggerFeature"/>
<bean class="io.fabric8.cxf.endpoint.ManagedApiFeature"/>
</jaxrs:features>
<jaxrs:providers>
<bean class="com.fasterxml.jackson.jaxrs.json.JacksonJsonProvider"/>
</jaxrs:providers>
</jaxrs:server>
<bean id="customerSvc" class="restfuse.CustomerService"/>
<cxf:bus>
<cxf:features>
<cxf:logging />
</cxf:features>
</cxf:bus>
<camelContext id="blueprintContext" trace="false" xmlns="http://camel.apache.org/schema/blueprint">
<route customId="true" id="timerToLog">
<from uri="cxfrs:bean:customerService"/>
<setBody>
<method ref="helloBean" method="hello"></method>
</setBody>
<log message="The message contains ${body}"/>
<to uri="mock:result"/>
</route>

Answer 1

I was having the same issue regarding cxf-rs web services using blueprint. For what I was able to see if you try to mix camel cxf component with cxf definitions, when camel contexts starts it tries to create the same cxf-rs enpoints twice, therefore it ends with: error occurred during starting Camel: CamelContext(blueprintContext) due There is an endpoint already running...
I managed to solve this changing <from uri=cxfrs:bean:mybean> to <from uri=direct:start> and modifying jaxrs:servicebean pojo injecting direct:start endpoint and sending received object as body.
Here is my code:
blueprint.xml
<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:camel="http://camel.apache.org/schema/blueprint"
xmlns:jaxrs="http://cxf.apache.org/blueprint/jaxrs"
xmlns:cxf="http://cxf.apache.org/blueprint/core"
xsi:schemaLocation="
http://www.osgi.org/xmlns/blueprint/v1.0.0 http://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd
http://camel.apache.org/schema/blueprint http://camel.apache.org/schema/blueprint/camel-blueprint.xsd
http://camel.apache.org/schema/blueprint/cxf http://camel.apache.org/schema/cxf/camel-cxf-blueprint.xsd
http://cxf.apache.org/blueprint/jaxrs http://cxf.apache.org/schemas/blueprint/jaxrs.xsd
http://cxf.apache.org/blueprint/core http://cxf.apache.org/schemas/blueprint/core.xsd">
<jaxrs:server id="rsAuthApiSvc"
address="http://localhost:9898/authservice"
staticSubresourceResolution="true">
<jaxrs:serviceBeans>
<ref component-id="pmAuthService"/>
</jaxrs:serviceBeans>
<jaxrs:providers>
<bean class="com.fasterxml.jackson.jaxrs.json.JacksonJsonProvider"/>
</jaxrs:providers>
</jaxrs:server>
<bean id="pmAuthService" class="com.platamovil.platamovil.auth.rs.PMAuthService"/>
<camelContext trace="false" streamCache="true" id="authApiContext" xmlns="http://camel.apache.org/schema/blueprint">
<route id="restApiRoute">
<from uri="direct:start"/>
<log message="received from WS: ${body}"/>
<setBody>
<constant>{"status":"OK"}</constant>
</setBody>
</route>
</camelContext>
pmAuthService Bean
import javax.ws.rs.Consumes;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import org.apache.camel.EndpointInject;
import org.apache.camel.ProducerTemplate;
import com.platamovil.platamovil.auth.api.PMAuthMessage;
public class PMAuthService {
#EndpointInject(uri="direct:start")
ProducerTemplate producer;
#POST
#Consumes(MediaType.APPLICATION_JSON)
#Produces(MediaType.APPLICATION_JSON)
#Path("/authenticateclient")
public PMAuthMessage processAuthService(PMAuthMessage in_msg) throws Exception{
System.out.println("message arrived");
return producer.requestBody(in_msg).toString()
}
}
After this fix CamelContext starts without error and works perfectly. I hope this helps!

Answer 2

Using CXFRsServer instead of jaxrs server also solves this problem.