I need to launch the on error sequence o generate a internal error when I receive a soap fault response in my orchestration. Something like throw an exception in Java.
An easy way is to set a filter in each sequence so that, when a fault tag is received, the onError sequence is launched. I guess there must be better ways to do this.
How can I make soap fault responses are treated like an error so that the on error sequence is launched?
This was not straight-forward until WSO2 ESB 4.5.0 (which is the latest release). There is new property introduced "FORCE_ERROR_ON_SOAP_FAULT" to get this done. See this post for a sample configuration.
In your proxy configuration, define the fault sequence..
Related
I've just successfully implemented a JMS-message-processor in my WSO2-process. However, when logged in as an admin on the ActiveMQ console, I can view the stats of the queue but I cannot access the contents of the pending message. Instead, I see this error:
Cannot display ObjectMessage body. Reason: Failed to build body from content. Serializable class not available to broker. Reason: java.lang.ClassNotFoundException: org.apache.synapse.message.store.impl.commons.StorableMessage
Accessing the contents of a pending message is possible when using the RabbitMQ, so I figured it should also be possible with this message broker.
I've found solutions online, but they don't seem to be working, or perhaps they're out of date. Can somebody point me to the correct answer to solve this? I'm on WSO2 Integration Studio 8.1.0 and am using ActiveMQ 5.17.1.
It appears that WSO2 is using javax.jms.ObjectMessage despite the fact that there's a long list of reasons why doing so is a bad idea, including the issue you're currently facing, but I digress.
The problem here is that the implementation of the javax.jms.ObjectMessage (i.e. org.apache.synapse.message.store.impl.commons.StorableMessage in this case) must be on the classpath of any application which wants to deserialize that message. This class is not, in fact, on the classpath of ActiveMQ therefore the ActiveMQ web console cannot deserialize the message and display its contents (assuming those contents are human-readable in the first place). That's why a ClassNotFoundException is thrown.
You may be able to resolve the issue by putting org.apache.synapse.message.store.impl.commons.StorableMessage on ActiveMQ's classpath. Aside from that there's really nothing to be done.
I assume this is different for RabbitMQ because in that case WSO2 doesn't use the JMS API and uses the AMQP protocol which is not Java-centric like JMS.
Justin has explained the cause of the issue and as suggested you can try adding the class to ActiveMQ runtime and see whether it resolves the issue. This class is located in the Synapse-Core(synapse-core_2.x.x.wso2vXXX.jar). But remember although this may resolve the ActiveMQ UI issue, this message is not consumable by other systems unless they know how to deserialize it.
Let me add more details on why the message is serialized. Message serialization happens when you use the Store mediator, and when you store a message with Store Mediator it is intended to be only read by a Message Processor. Simply the serialized message can only be consumed by WSO2 Message Processors. In other words, Store Mediator and the Message processors are tightly coupled.
If message serialization is an issue for you. For example, if other systems are consuming the messages that WSO2 publishes you can try using the JMS transport to produce and to consume messages from ActiveMQ. Other than that you can also consider using JMS Inbound Endpoint to consume messages, which all use standard media types when storing the message.
I deployed an API in EI. The API's main logic transformed a rest request to soap request and the calling a soap-based endpoint. Later I use a data mapper converting the response message to the format which I need.
But sometimes the endpoint went wrong and respond an error message, which made the data mapper parsed mistakenly and the main process went to the default fault sequence(I put a response mediator to the fault sequence), then I got an error log "SourceHandler Writer null when calling informWriterError".
After the scenario occurs again and again(about 200times in 5 minutes), the EI couldn't deal request any longer.
How can I deal with it?
I used the version 6.1.1 before, there is a bug https://github.com/wso2/product-ei/issues/650.
After upgraded to the version 6.4.0 release, everything is ok now.
I have created a Talend job and deployed it as a Axis Web Service.
I am calling this Web Service from my Web Application.
My application and web service are deployed over Tomcat server.
For Valid Inputs:
Runs Perfectly.
For Invalid Inputs:
It throws Error/exceptions in Tomcat Server.
I want this Errors into my application. I didn't get any error related information in the Response sent by web service.
Error message on Tomcat Server
XML response of Web service
If I understand your question you are not so much asking how to fix this error, but how to get feedback about your error. There are several ways but here is a simple method.
Add a tLogCatcher to your job, and point its output to a tSendMail component. You can run the output thru a tMap do things like adding HTML formatting. You can also create a joblet with these two components and use the joblet in every job so you do not have to recreate it every time.
The diagram below shows a real simple case where I add tLogCatcher and tSendMail directly to the job. When there is an error it will send me an email with the details. You can use any of the columns in row11, I am only using job and message in my example.
This error : For input string "fabrik"
is generated by the tFileInputExcel component when encountering a non valid field (expected : integer ; given : string). You can't directly catch this error with the tFileInputExcel component (it's just printed out on the console).
However, you can use a tSchemaComplianceCheck component after your tFileInputExcelComponent : it will throw an error if a data is not valid for your schema. This component has a reject link to catch the error.
tFileInputExcel->tSchemaComplianceCheck->tMap->tMSOutput
If you use tLogCatcher component to catch the error then, at the end of the flow, you can add a tBufferOutput component. Keep the fields with the information you want for.
component configuration
The result will be like this (note that they are shown in the same order):
result
I have to admin the WS2 BPS (3.6.0) is not very revealing about internal exceptions. There's a small chapter in the documentation about troubleshooting, however this setup logs only messages passed to the endpoints.
Questions:
is there way to see internal exceptions thrown during the BPEL execution) wether handled or unhandled? (such as errors in the expressions or scripts). Maybe on the Apache-ODE level?
is there any way to access the fault caught by the "catchAll" fault handler?
Thank you all for any hint
1) One way troubleshoot is, enable BPEL Runtime debug logs, where you can see the execution flow.
log4j.logger.org.apache.ode.bpel.runtime=DEBUG
If you need further information, you can enable debug logs for ODE engine as well.
log4j.logger.org.apache.ode.bpel.engine=DEBUG
2) There is no OTB way to achieve this. This is a limitation in BPEL 2.0 spec. In BPEL 2.0, you can catch only faults that are defined in the partner service WSDL. Additionally, you can assign a variable for the error message. From that, you can access information about the fault.
But CatchAll doesn't associate with a variable. It is a generic fault handler.
I would suggest using flag based solution to handle errors within catchall. (That is what I have seen in most of the solutions.)
When I use the try tool of WSO2 Data Services in link:
.../services/User_DataService?tryit
The exceptions generated for the data service are accessible just in the log file, within the sever (.../repository/log/wso2carbon.log).
Is possible receive the full exception in the "Reponse" block when I use the try tool?
Normally you are getting a SOAP fault message with proper reasoning in Data Services when an exception occurs. You will not be getting the complete error log as it is but a meaningful to understand it.