1 Reply Latest reply on Oct 26, 2016 5:34 PM by Sachin Garg

    Call REST service from Apache Camel Blueprint

    Adam Akbar Newbie

      I want to call external REST service that return a JSON, the REST itself have a basic authentication (which I don't know how to send a basic authentication), I've read some tutorial and also CXFRS component that lead me to this blueprint.xml.

      <?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:cxf="http://camel.apache.org/schema/cxf"
        
      xmlns:jaxrs="http://cxf.apache.org/jaxrs"
        
      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/cxf http://camel.apache.org/schema/cxf/camel-cxf.xsd
        http://cxf.apache.org/jaxrs http://cxf.apache.org/schemas/jaxrs.xsd"
      >

       
      <bean id="jsonProvider" class="org.apache.cxf.jaxrs.provider.json.JSONProvider"/>

       
      <cxf:rsClient id="rsClient" address="http://localhost/test.php">
        
      <cxf:providers>
        
      <ref bean="jsonProvider"/>
        
      </cxf:providers>
       
      </cxf:rsClient>

       
      <camelContext xmlns="http://camel.apache.org/schema/blueprint">
        
      <propertyPlaceholder location="classpath:sql.properties" id="placeholder"/>

        
      <route>
        
      <from uri="cxfrs://bean://rsClient"/>
        
      <log message="${body}"/>
        
      </route>

       
      </camelContext>

      </blueprint>

       

      I'm using JBoss Developer Studio to develop and to test using right click on blueprint.xml -> Run As -> Local Camel Context (without tests) here is output from that.

      [ERROR] *************************************
      [ERROR] Error occurred while running main from: org.apache.camel.test.blueprint.Main
      [ERROR]
      java
      .lang.reflect.InvocationTargetException
        at sun
      .reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun
      .reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun
      .reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java
      .lang.reflect.Method.invoke(Method.java:498)
        at org
      .apache.camel.maven.RunMojo$1.run(RunMojo.java:488)
        at java
      .lang.Thread.run(Thread.java:745)
      Caused by: java.lang.RuntimeException: Gave up waiting for service (objectClass=org.apache.camel.CamelContext)
        at org
      .apache.camel.test.blueprint.CamelBlueprintHelper.getOsgiService(CamelBlueprintHelper.java:265)
        at org
      .apache.camel.test.blueprint.CamelBlueprintHelper.getOsgiService(CamelBlueprintHelper.java:226)
        at org
      .apache.camel.test.blueprint.Main.doStart(Main.java:110)
        at org
      .apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
        at org
      .apache.camel.main.MainSupport.run(MainSupport.java:150)
        at org
      .apache.camel.main.MainSupport.run(MainSupport.java:354)
        at org
      .apache.camel.test.blueprint.Main.main(Main.java:84)
        
      ... 6 more
      [ERROR] *************************************
      [INFO] ------------------------------------------------------------------------
      [INFO] BUILD FAILURE
      [INFO] ------------------------------------------------------------------------
      [INFO] Total time: 01:07 min
      [INFO] Finished at: 2016-10-04T12:11:28+07:00
      [INFO] Final Memory: 30M/314M
      [INFO] ------------------------------------------------------------------------
      [ERROR] Failed to execute goal org.apache.camel:camel-maven-plugin:2.15.1.redhat-621084:run (default-cli) on project dsource: null: MojoExecutionException: InvocationTargetException: Gave up waiting for service (objectClass=org.apache.camel.CamelContext) -> [Help 1]
      [ERROR]
      [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
      [ERROR] Re-run Maven using the -X switch to enable full debug logging.
      [ERROR]
      [ERROR] For more information about the errors and possible solutions, please read the following articles:
      [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

      Apart the error I got, how exactly I can call or invoke REST service from Apache Camel using Blueprint and get the returned JSON?