me.alidg.errors.handlers

Class AnnotatedWebErrorHandler

java.lang.Object

me.alidg.errors.handlers.AnnotatedWebErrorHandler

All Implemented Interfaces:

WebErrorHandler

public class AnnotatedWebErrorHandler
extends Object
implements WebErrorHandler

WebErrorHandler implementation responsible for handling exceptions annotated with the ExceptionMapping annotation. The web error code and status code would be extracted form the annotated exception. Also, any member annotated with ExposeAsArg would be exposed as arguments.

Author:

Ali Dehghani

See Also:

ExposeAsArg, ExceptionMapping

Constructor Summary

Constructors

Constructor and Description
AnnotatedWebErrorHandler()

Method Summary

Modifier and Type	Method and Description
boolean	canHandle(Throwable exception) Only can handle non-null exceptions annotated with ExceptionMapping annotation.
HandledException	handle(Throwable exception) Handles the thrown exception annotated with ExceptionMapping by using the ExceptionMapping.errorCode() as the error code, the ExceptionMapping.statusCode() as the HTTP status code and also, exposing exception members annotated with ExposeAsArg.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AnnotatedWebErrorHandler

public AnnotatedWebErrorHandler()

Method Detail

canHandle

public boolean canHandle(Throwable exception)

Only can handle non-null exceptions annotated with ExceptionMapping annotation.

Specified by:

canHandle in interface WebErrorHandler

Parameters:

exception - The exception to examine.

Returns:

true if the exception is annotated with ExceptionMapping, false otherwise.

handle

@NonNull
public HandledException handle(Throwable exception)

Handles the thrown exception annotated with ExceptionMapping by using the ExceptionMapping.errorCode() as the error code, the ExceptionMapping.statusCode() as the HTTP status code and also, exposing exception members annotated with ExposeAsArg.

Specified by:

handle in interface WebErrorHandler

Parameters:

exception - The exception to handle.

Returns:

An HandledException instance encapsulating the error code, status code and all to-be-exposed arguments.