I'm not sure what you mean by custom validation handler.
If you want to change validation error handling you can create class implementing javax.xml.bind.ValidationEventHandler
For instance I used this approach to prevent JAXB from throwing exception on the first encountered error. My custom event handler collected all non-fatal validation errors and thrown appropriate exception after validating whole incoming message.
Sample use of ValidationEventHandler
In order to use your custom validation event handler you should add jaxb-validation-event-handler property:
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:jaxws="http://cxf.apache.org/jaxws"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd
http://www.springframework.org/schema/osgi http://www.springframework.org/schema/osgi/spring-osgi.xsd">
<jaxws:endpoint id="HTTPEndpoint"
implementor="org.dpytel.servicemix.cxf.wsdlfirst.PersonImpl" address="/PersonService"
wsdlLocation="wsdl/person.wsdl" endpointName="e:soap" serviceName="s:PersonService"
xmlns:e="http://servicemix.apache.org/samples/wsdl-first" xmlns:s="http://servicemix.apache.org/samples/wsdl-first">
<jaxws:properties>
<entry key="schema-validation-enabled" value="true" />
<entry key="jaxb-validation-event-handler">
<bean class="org.dpytel.servicemix.cxf.wsdlfirst.MyCustomHandler"></bean>
</entry>
</jaxws:properties>
</jaxws:endpoint>
</beans>
Camel CXF endpoint configuration:
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:cxf="http://camel.apache.org/schema/cxf"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://camel.apache.org/schema/cxf
http://camel.apache.org/schema/cxf/camel-cxf.xsd">
<cxf:cxfEndpoint id="personEndpoint" address="/person"
serviceClass="org.apache.servicemix.samples.wsdl_first.Person"
wsdlURL="wsdl/person.wsdl">
<cxf:properties>
<entry key="schema-validation-enabled" value="true" />
<entry key="jaxb-validation-event-handler">
<bean class="org.dpytel.servicemix.camel.MyCustomHandler" />
</entry>
</cxf:properties>
</cxf:cxfEndpoint>
</beans>
Example handler that disables validation error and just logs the validation message:
import java.util.logging.Logger;
import javax.xml.bind.ValidationEvent;
import javax.xml.bind.ValidationEventHandler;
public class MyCustomHandler implements ValidationEventHandler {
private Logger logger = Logger.getLogger(this.getClass().getCanonicalName());
public boolean handleEvent(ValidationEvent event) {
logger.severe("Error: " + event.getMessage());
return true;
}
}
Please note that some validation errors will cause CXF to skip calling your handler (See details of DataReaderImpl.WSUIDValidationHandler.handleEvent(...)). Your handler will be skipped if error message contains ":Id" string, or is one of the following errors:
- cvc-type.3.1.1
- cvc-type.3.2.2
- cvc-complex-type.3.1.1
- cvc-complex-type.3.2.2
(frankly it seems like a dirty hack in CXF and if it is a problem for you I would create a bug for CXF team).
If you want more error handling customization you should probably consider writing your own Interceptor. Probably the best phase to perform such validation would be one of (PRE/USER/POST)_LOGICAL.
