Re: XML Namespace Issue with XPathExpression

John Dubchak Fri, 28 Mar 2014 02:04:27 -0700

Hi Claus,

Thank you for the reply, but I'm fairly certain that it has to do withJAXB and the XML namespaces and I found this in my logs during sometests I was just running:

So, it isn't able to find the schemas containing the JAXB info which isdeployed as a separate bundle and used by importing the packages in mybundle. Is it possible it could be something like that?


My set up (or desired set up) isthis:

Shared XML Schema Bundle <- My File Route - imports the schema packagesand some utils packages


FWIW, I am using the Codehaus jaxb2-maven-plugin Mojo v1.6, if that matters.

Thanks,
John


On 3/28/14 1:08 AM, Claus Ibsen wrote:

Hi

Maybe its streaming see this FAQ
http://camel.apache.org/why-is-my-message-body-empty.html

On Fri, Mar 28, 2014 at 8:57 AM, John Dubchak <[email protected]> wrote:

Hi,

I am trying to integrate another part of our system that will publish XML
events to a camel route.  I am having difficulty getting JAXB and my camel
route to work correctly and I've narrowed it down to the following that
shows my xpath expression I expect to match isn't.

At this point I'd appreciate any help on this - I *really* need to get this
finished, and I've spent days trying to resolve this.

Info:
1 - Route definition
2 - Log file
3 - XML

Thanks,
John

[1] Route:

DataFormat jaxb = new JaxbDataFormat("com.example.services.schemas.events");
Namespaces ns = new Namespaces("",
"http://www.example.com/services/resource/schemas/events";);

from("activemq:my.events")
     .choice()
.when(ns.xpath("/event/context[type='inbound:file-receive']"))
             .to("direct:inboundHandler")
     .otherwise().log("Processing ${id} did not match namespace.");

from("direct:inboundHandler")
     .unmarshal(jaxb)
     .process(new Processor() {
         @Override
         public void process(Exchange exchange) throws Exception {
             System.out.println("trying to get the marshalled event");
             Event evt = exchange.getIn().getBody(Event.class);
             System.out.println("event.type = " + EventUtils.getType(evt));
         }
     });

[2] Log File:

00:29:05,656 | DEBUG | umer[my.events] | EndpointMessageListener          |
106 - org.apache.camel.camel-jms - 2.10.7 | Endpoint[activemq://my.events]
consumer received JMS message: ActiveMQTextMessage {commandId = 3,
responseRequired = false, messageId =
ID:dubchak-mbp-53315-1395991558715-8:1:-1:1:1, originalDestination = null,
originalTransactionId = null, producerId =
ID:dubchak-mbp-53315-1395991558715-8:1:-1:1, destination =
queue://my.events, transactionId = null, expiration = 0, timestamp =
1395991745644, arrival = 0, brokerInTime = 1395991745644, brokerOutTime =
1395991745647, correlationId = null, replyTo = null, persistent = false,
type = null, priority = 4, groupID = null, groupSequence = 0,
targetConsumerId = null, compressed = false, userID = null, content = null,
marshalledProperties = null, dataStructure = null, redeliveryCounter = 0,
size = 0, properties = null, readOnlyProperties = true, readOnlyBody = true,
droppable = false, text = <?xml version="1.0" encoding="UTF-8"
standalo.../tns:event>
}
*00:29:05,676 | DEBUG | umer[my.events] | ChoiceProcessor                  |
100 - org.apache.camel.camel-core - 2.10.7 | #0 - XPath:
/event/context[type='inbound:file-receive'] matches: false for:
Exchange[JmsMessage[JmsMessageID:
ID:dubchak-mbp-53315-1395991558715-8:1:-1:1:1]]**
**00:29:05,676 | INFO  | umer[my.events] | route3
| 100 - org.apache.camel.camel-core - 2.10.7 | Processing
ID:dubchak-mbp-53315-1395991558715-8:1:-1:1:1 did not match namespace.**
**00:29:07,634 | DEBUG | .0.1:53353@61613 | Transport
| 63 - org.apache.activemq.activemq-core - 5.7.0 | Transport Connection to:
tcp://127.0.0.1:53353 failed: java.io.EOFException**
**java.io.EOFException**
**    at
java.io.DataInputStream.readByte(DataInputStream.java:267)[:1.7.0_45]**
**    at
org.apache.activemq.transport.stomp.StompWireFormat.readHeaderLine(StompWireFormat.java:155)[63:org.apache.activemq.activemq-core:5.7.0]**
**    at
org.apache.activemq.transport.stomp.StompWireFormat.readLine(StompWireFormat.java:148)[63:org.apache.activemq.activemq-core:5.7.0]**
**    at
org.apache.activemq.transport.stomp.StompWireFormat.parseAction(StompWireFormat.java:170)[63:org.apache.activemq.activemq-core:5.7.0]**
**    at
org.apache.activemq.transport.stomp.StompWireFormat.unmarshal(StompWireFormat.java:98)[63:org.apache.activemq.activemq-core:5.7.0]**
**    at
org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:229)[63:org.apache.activemq.activemq-core:5.7.0]**
**    at
org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:221)[63:org.apache.activemq.activemq-core:5.7.0]**
**    at
org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:204)[63:org.apache.activemq.activemq-core:5.7.0]**
**    at java.lang.Thread.run(Thread.java:744)[:1.7.0_45]*
00:29:07,636 | DEBUG | .0.1:53353@61613 | ManagementContext                |
63 - org.apache.activemq.activemq-core - 5.7.0 | Unregistering MBean
org.apache.activemq:BrokerName=default,Type=Connection,ConnectorName=stomp,Connection=ID_dubchak-mbp-53315-1395991558715-8_1
0

[3] XML:

<?xml version="1.0" encoding="UTF-8"?>
<event xmlns="http://www.example.com/services/resource/schemas/events";
        event-id="12345" timestamp="2014-03-27T12:50:10.993-07:00">
     <context>
         <type>inbound:file-receive</type>
         <attributes>
             <attribute>
                 <name>source</name>
<value>file:///integration/work/provider_directory/in/infile.tar.gz</value>
             </attribute>
             <attribute>
                 <name>target</name>
<value>file:///integration/work/provider_directory/ready/reformatted.tar.gz</value>
             </attribute>
             <attribute>
                 <name>datasource</name>
                 <value>foo</value>
             </attribute>
         </attributes>
     </context>
     <source>
         <uri>
             <host-name>localhost</host-name>
             <host-id>localhost</host-id>
             <domain>example.com</domain>
<fully-qualified>file:///integration/work/provider_directory/in/infile.tar.gz</fully-qualified>
         </uri>
     </source>
     <target>
         <uri>
             <host-name>localhost</host-name>
             <host-id>internal2.example.com</host-id>
             <domain>example.com</domain>
<fully-qualified>file:///integration/work/provider_directory/ready/aetna_v4_05.zip</fully-qualified>
         </uri>
     </target>
     <event-data>
         <payload/>
     </event-data>
</event>

Re: XML Namespace Issue with XPathExpression

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