XStreamToObject --- Content not allowd in prolog

[govindaattal]

Hello,


I have written an ESB service with FTPListener which polls for a XML file.
In the Action processing pipeline I wish to convert XML stream to an object.

For that I used 'org.jboss.soa.esb.actions.converters.XStreamToObject'

jboss-esb.xml looks like

...
...
 <actions>
 <action name="print-before-routing"
 class="org.jboss.soa.esb.actions.SystemPrintln">
 <property name="message"
 value="[XML To Object Service] Before invoking Router" />
 </action>

 <action name="transform" class="org.jboss.soa.esb.actions.converters.XStreamToObject">
 <property name="class-alias" value="employee" />

 <property name="incoming-type" value="org.Employee" />
 </action>


 </actions>
...
...

class org.Employee is as follows

public class Employee
{
 private String name;
 private String contactNo;
 private String address;
 private String employeeID;
 // Getters and setters ...
}

and contents of the xml file being polled is -

<employee>
 <employeeID>40082</employeeID>
 <name>Govinda Attal</name>
 <contactNo>[phone]</contactNo>
 <address>Mumbai</address>
</employee>

When I run this case, what I see on console is

14:39:30,560 INFO [STDOUT] [XML To Object Service] Before invoking Router:
14:39:30,560 INFO [STDOUT] [<employee>
 <employeeID>40082</employeeID>
 <name>Govinda Attal</name>
 <contactNo>>[phone]</contactNo>
 <address>Mumbai</address>
</employee>
].
14:39:30,748 ERROR [STDERR] [Fatal Error] :1:1: Content is not allowed in prolog.
14:39:30,748 WARN [ActionProcessingPipeline] Unexpected exception caught while processing the action pipeline
com.thoughtworks.xstream.io.StreamException: : Content is not allowed in prolog.
 at com.thoughtworks.xstream.io.xml.DomDriver.createReader(DomDriver.java:47)
 at com.thoughtworks.xstream.io.xml.DomDriver.createReader(DomDriver.java:29)
 at com.thoughtworks.xstream.XStream.fromXML(XStream.java:515)
 at com.thoughtworks.xstream.XStream.fromXML(XStream.java:506)
 at org.jboss.soa.esb.actions.converters.XStreamToObject.process(XStreamToObject.java:90)
 at org.jboss.soa.esb.listeners.message.ActionProcessingPipeline.process(ActionProcessingPipeline.java:253)
 at org.jboss.soa.esb.listeners.message.MessageAwareListener$1.run(MessageAwareListener.java:301)
 at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
 at java.lang.Thread.run(Thread.java:595)
Caused by: org.xml.sax.SAXParseException: Content is not allowed in prolog.
 at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
 at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)
 at com.thoughtworks.xstream.io.xml.DomDriver.createReader(DomDriver.java:40)
 ... 9 more
14:39:30,779 ERROR [ActionProcessingPipeline] Failed to send error to address null.
org.jboss.soa.esb.couriers.CourierException: No deliverAsync courier
 at org.jboss.internal.soa.esb.couriers.TwoWayCourierImpl.deliver(TwoWayCourierImpl.java:166)
 at org.jboss.soa.esb.listeners.message.ActionProcessingPipeline.faultTo(ActionProcessingPipeline.java:436)
 at org.jboss.soa.esb.listeners.message.ActionProcessingPipeline.process(ActionProcessingPipeline.java:287)
 at org.jboss.soa.esb.listeners.message.MessageAwareListener$1.run(MessageAwareListener.java:301)
 at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
 at java.lang.Thread.run(Thread.java:595)

Just to get hand of XStream apis I used them in a standalone java application to convert from XML to object. The apis work fine.



I am not able to figure it out, what necesssary configuration I have missed out...
Please help.

Infrastructure used:
JBOSS 4.0.5 with EJB3 Patch RC9 Patch1
JBOSS ESB 4.2MR2

[Off the track, I read you have added nested objects support in XStreamToObject using aliases property in ESB MR3]

Thanks & Regards,
Govinda