Re: Handling error per endpoint

[Aryan]

There are two issues that we are facing:

Issue 1:

We are trying exception handling in following route

                <route id="A" trace="true" errorHandlerRef="eh">
                        <from uri="openAPI" />
        
                        <onException>
                        <exception>java.lang.Exception</exception>
                        <redeliveryPolicy logRetryAttempted="true"
retryAttemptedLogLevel="WARN" maximumRedeliveries="2" />
                </onException>
                        
                <onException>
                   
<exception>com.example.InvalidParameterException</exception>
                     <redeliveryPolicy logRetryAttempted="true"
retryAttemptedLogLevel="WARN" maximumRedeliveries="4" />
                </onException>
                        
                        <convertBodyTo type="java.util.Map" />
                        <setHeader headerName="integrationType">
                                <constant>SOAP</constant>
                        </setHeader>
                        
                        <process ref="headerProcessor" />
                        
                        <bean ref="serviceHelperMapper" method="route" />
                        <choice>
                                <when>
                                        <simple>${header.requestType} == 
'broadcast'</simple>
                                        <bean ref="broadcasterBean" 
method="route" />
                                </when>
                                <when>
                                        <simple>${header.requestType} == 
'forward'</simple>
                                        <bean ref="dynamicRouterBean" 
method="route" />
                                </when>
                                <otherwise>
                                        <bean ref="dynamicRouterBean" 
method="route" />
                                </otherwise>
                        </choice>
                        <convertBodyTo type="com.example.SoapMap" />
                </route>
        
Is this the standard way to handle exceptions in camel routes? If not what
is the recommended way of handling it?
Other option is to configure it using onWhen. Onexception block will only be
triggered if it matches the header type.

<onException>
                                
<exception>com.example.InvalidDestinationException</exception>
                                <onWhen>
                                        <simple>${header.requestType} == 
'broadcast'</simple>
                                </onWhen>
                                <redeliveryPolicy maximumRedeliveries="6" />
                                <handled>
                                        <constant>true</constant>
                                </handled>
</onException>
                        

Issue 2:                        
Another issue that we have is when we try the same exception handling within
when case of choice, it doesn't work. 
<choice>
        <when>
                <onException>
                        
<exception>com.example.InvalidDestinationException</exception>
             <  redeliveryPolicy logRetryAttempted="true"
retryAttemptedLogLevel="WARN" maximumRedeliveries="6" />
                </onException>
                        <simple>${header.requestType} == 'forward'</simple>
                        <bean ref="dynamicRouterBean" method="route" />
        </when>
</choice>

Regards,
Aryan



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