We need to return custom error code and error message when exception occurs during REST invocation. We have created a exception mapper provider, it works well for the exceptions from the application code. However, it doesn't work when exception occurs from the CXF code (e.g. form the CustomValidationInterceptor that I wrote).
For example, if I request with invalid path parameter (e.g invalid phoneNumber). In this case, we need to return a custom error code and error message in JSON format, but it doesn't work even though we have a exception mapper provider created to handle WebApplicationException.
Is there any way to handle exceptions from cxf interceptors and return response to user with something like the following?
{
"errorDetail": {
"errorCode": "404",
"errorMessage": "Bad Request"
}
}
Code Snippet of my CustomValidationInterceptor :
public class CustomValidationInterceptor extends AbstractPhaseInterceptor<Message>{
public CustomValidationInterceptor() {
super(Phase.PRE_INVOKE); // Put this interceptor in this phase
}
public void handleMessage(Message message) {
MetadataMap<String, String> metadataMap = (MetadataMap<String, String>) message.get("jaxrs.template.parameters");
if(null != metadataMap) {
List<String> list = metadataMap.get("phoneNumber");
if(null != list) {
String phoneNumber = list.get(0);
boolean result = validatePhoneNumber(phoneNumber);
if(!result){
throw new TelusServiceException(Response.status(Response.Status.BAD_REQUEST).build(), 400, "phone number not valid");
}
} else {
throw new TelusServiceException(Response.status(Response.Status.BAD_REQUEST).build(), 400, "phone number not valid");
}
} else {
throw new TelusServiceException(Response.stat