Use getIn() instead of getOut() in your AggregateStrategy class.
On Wed, Sep 15, 2010 at 12:47 PM, alexcpn <[email protected]> wrote: > > I just printed out the body of the exchange in the camel aggregator and it is > returning null. I guess this is one reason why the xpath is not working. > Could this be a bug in camel 2.2 ? > > > Here are two snippets; one just printing the expected body as is , and the > second which routes it through the aggregator > ------------------------------------------------------------------------------------------------------- > public class MyRouteBuilder extends RouteBuilder { > > public void configure() { > System.out.println("In MyRouteBuilder------------------"); > > Namespaces ns = new Namespaces("p", > "http://nsn.com/obs/mw/medfra/snmpbc";) > .add("xsd", "http://www.w3.org/2001/XMLSchema";); > > from("jbi:service:http://servicemix.apache.org/test/camel-receiver";) > .to("log:tutorial"); > > -------------------------------------------------------------------------------------------------------------------- > INFO - AutoDeploymentService - Directory: hotdeploy: Finished > installation of archive: inmc-snmp-sa-1.0-SNAPSHOT.jar > INFO - tutorial - > Exchange[BodyType:javax.xml.transform.stream.StreamSource, > Body:<p:snmp-getResponse xmlns:p="http://nsn.com/obs/mw/medf > ra/snmpbc" xmlns:xsi="http://www.w3.org/2001/XMLSchema";> > <p:NE ipaddr="10.58.128.10"/> > <p:get-response> 1.3.6.1.6.3.1.1.4.1.0 > <p:variable-bindings> > <p:varBinding name="1.3.6.1.6.3.1.1.4.1.0">noSuchObject</p:varBinding> > </p:variable-bindings> > </p:get-response> > </p:snmp-getResponse> > -------------------------------------------------------------------------------------------------------------------- > > public class MyRouteBuilder extends RouteBuilder { > > public void configure() { > from("jbi:service:http://servicemix.apache.org/test/camel-receiver";) > .aggregate(new MyAggregationStrategy()) //camel 2 > //.aggregator(new MyAggregationStrategy()) //camel 1.6 > .header("*") > //.xpath("string(/p:snmp-getResponse/p:NE/@ipaddr)",String.class, ns) > //.completedPredicate(header("completed").isEqualTo("true")) //camel > 1.6 > .completionPredicate(header("completed").isEqualTo("true")) > //camel 2 > > //.to("jbi:endpoint:http://servicemix.apache.org/test/file_sender_getbulk/endpoint";); > // 3 > .to("log:tutorial"); > > > > > --------------------------------------------------------------------------------------------------------- > public class MyAggregationStrategy implements AggregationStrategy { > > public Exchange aggregate(Exchange oldExchange, Exchange newExchange) { > > > String oldBody = oldExchange.getIn().getBody(String.class); > String newBody = newIn.getBody(String.class); > > System.out.println("---------------------------"); > System.out.println("New Body "+newBody); > System.out.println("Old Body "+oldBody); > System.out.println("---------------------------"); > > String oldBody2 = oldExchange.getOut().getBody(String.class); > String newBody2 = newExchange.getOut().getBody(String.class); > > System.out.println("---------------------------"); > System.out.println("New Body Out "+newBody2); > System.out.println("Old Body Out "+oldBody2); > System.out.println("---------------------------"); > > ------------------------------------------------------------------------------------- > INFO - AutoDeploymentService - Directory: hotdeploy: Finis > tion of archive: inmc-snmp-sa-1.0-SNAPSHOT.jar > Going in aggregate 123i4 > Exception in Aggregator > java.lang.NullPointerException > Going in aggregate 123i4 > --------------------------- > New Body null > Old Body null > --------------------------- > --------------------------- > New Body Out null > Old Body Out null > --------------------------- > getIp - inXMLnull > Exception caught getIp java.lang.NullPointerException > Ip--> > Status--> > Exception in Aggregator > java.lang.NumberFormatException: For input string: "" > > -- > View this message in context: > http://servicemix.396122.n5.nabble.com/servicemix-3-3-1-and-camel-core-2-3-0-tp1624310p2840430.html > Sent from the ServiceMix - User mailing list archive at Nabble.com. > -- Claus Ibsen Apache Camel Committer Author of Camel in Action: http://www.manning.com/ibsen/ Open Source Integration: http://fusesource.com Blog: http://davsclaus.blogspot.com/ Twitter: http://twitter.com/davsclaus
