purchasing example has error when using switchyard simulator

[jeffdelong]

I have followed the video https://vimeo.com/53007939

but when I run the SwitchYard Simulation

I get the following result:

Note - I did not make the modifications to the generated code / WSDL to only throw a single FAULT, as I understand that is no longer a limitation of SwitchYard.

There is nothing showing in the Simulation tab.

This is with 2.1.1.Final

SAVARA Tools Feature

2.1.1.Final

org.savara.tools.feature.feature.group

Red Hat, Inc.

I will attach the three modified implementation files; most likely I did not make the code changes correctly.

[jeffdelong]

When I deploy store service I get

JBAS014777:   Services which failed to start:

service jboss.deployment.unit."purchasing-Store-0.0.1-SNAPSHOT.jar".SwitchYardService: org.jboss.msc.service.StartException in service jboss.deployment.unit."purchasing-Store-0.0.1-SNAPSHOT.jar".SwitchYardService: org.switchyard.exception.SwitchYardException: Service operations on a Java interface can only throw one type of exception.

12:13:11,652 ERROR [org.jboss.as.server.deployment.scanner] (DeploymentScanner-threads - 1) {"JBAS014653: Composite operation failed and was rolled back. Steps that failed:" => {"Operation step-2" => {"JBAS014671: Failed services" => {"jboss.deployment.unit.\"purchasing-Store-0.0.1-SNAPSHOT.jar\".SwitchYardService" => "org.jboss.msc.service.StartException in service jboss.deployment.unit.\"purchasing-Store-0.0.1-SNAPSHOT.jar\".SwitchYardService: org.switchyard.exception.SwitchYardException: Service operations on a Java interface can only throw one type of exception."}}}}

So I guess a single fault is still a limitation of SwitchYard?

[objectiser]

Yes, you beat me to it

Let me know if there are still issues after commenting out the additional exception.

Regards

Gary

[jeffdelong]

So I commented out the second exception, and the Simulation is successful. However when I deploy to SY 0.8 and execute the StoreService, I get an exception when the CreditAgencyService is invoked:

21:40:56,571 INFO  [org.switchyard.handlers.MessageTrace] (http--127.0.0.1-8080-1)

------- Begin Message Trace -------

Service -> {http://www.savara.org/purchasing/Store}Store

Operation -> buy

Phase -> IN

State -> OK

Exchange Context ->

Message Context ->

    org.switchyard.messageId : b298c1ba-ffb8-4877-9a83-8386e9abc739

    org.switchyard.contentType : {http://www.jboss.org/examples/store}BuyRequest

    org.switchyard.soap.messageName : buyRequest

Message Content ->

<?xml version="1.0" encoding="UTF-8"?><stor:BuyRequest customer="Fred" id="1" product="100" xmlns:stor="http://www.jboss.org/examples/store"/>

------ End Message Trace -------

21:40:56,584 INFO  [stdout] (http--127.0.0.1-8080-1) CustomerName is: Fred

21:40:56,586 INFO  [org.switchyard.handlers.MessageTrace] (http--127.0.0.1-8080-1)

------- Begin Message Trace -------

Service -> {http://www.savara.org/purchasing/Store}CreditAgency

Operation -> creditCheck

Phase -> IN

State -> OK

Exchange Context ->

Message Context ->

    org.switchyard.messageId : 30f611fa-1869-4202-84ad-389ed9516b44

    org.switchyard.contentType : java:org.jboss.examples.creditagency.CreditCheckType

Message Content ->

org.jboss.examples.creditagency.CreditCheckType@1e07c8a

------ End Message Trace -------

21:40:56,595 INFO  [org.switchyard.handlers.MessageTrace] (http--127.0.0.1-8080-1)

------- Begin Message Trace -------

Service -> {http://www.savara.org/purchasing/Store}CreditAgency

Operation -> creditCheck

Phase -> OUT

State -> FAULT

Exchange Context ->

    org.switchyard.exchangeDurationMS : 9

    org.switchyard.exchange.transaction.beforeInvoked : true

Message Context ->

    org.switchyard.messageId : d45ff059-a8c7-49fd-9c28-b7f7caaefbc7

    org.switchyard.contentType : {http://www.jboss.org/examples/creditAgency}CustomerUnknown

    org.switchyard.relatesTo : 30f611fa-1869-4202-84ad-389ed9516b44

Message Content ->

org.switchyard.HandlerException: org.switchyard.exception.SwitchYardException: Failed to unmarshall for type 'java:org.jboss.examples.creditagency.CreditCheckType'.

--- Caused by org.switchyard.exception.SwitchYardException: Failed to unmarshall for type 'java:org.jboss.examples.creditagency.CreditCheckType'.

--- Caused by javax.xml.bind.MarshalException: null

--- Caused by com.sun.istack.SAXException2: unable to marshal type "org.jboss.examples.creditagency.CreditCheckType" as an element because it is missing an @XmlRootElement annotation

------ End Message Trace -------

21:40:56,614 ERROR [org.switchyard.bus.camel.audit.FaultProcessor] (http--127.0.0.1-8080-1) Unexpected exception thrown during handling FAULT response. This exception can not be handled, thus it's marked as handled and only logged. If you don't want see messages like this consider handling exceptions in your handler logic: org.switchyard.exception.SwitchYardException: Cannot convert from 'org.switchyard.HandlerException' to 'javax.xml.transform.dom.DOMSour

[objectiser]

Looks like there has been a change in the JAXB transformation in switchyard (https://github.com/jboss-switchyard/core/commit/71a30b6c0503c9c9f7625c4c3c46c48871d3b70b) which is causing the problem when running the example in 0.8.

The tools were built against 0.7, and that is why the simulation works.

Need to do some investigation to determine if there is something lacking from the savara generation, or whether the switchyard jaxb transformer is being too strict.

Regards

Gary

[objectiser]

Short term solution is to add:

@XmlRootElement(name="CreditCheckRquest") to CreditCheckType.java in CreditAgency and Store services

@XmlRootElement(name="CreditRating") to CreditRatingType.java in CreditAgency and Store services

etc.

The problem is that the jaxb generator doesn't alway add this annotation when there is a type and element defined. With the change to how switchyard does jaxb marshalling, it has shown up this issue.

I'll start a thread with switchyard team to see whether this workaround can be avoided in the next version of switchyard.

Regards

Gary

[jeffdelong]

The is an additional issue as well that I found when deploying to SwitchYard 1.0-SNAPSHOT. It has to do with WSDL imports vs Schema imports. See

https://community.jboss.org/message/817087#817087