Java tutorial
/* * #%L * restdoc-sample * %% * Copyright (C) 2012 IG Group * %% * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * #L% */ package com.iggroup.oss.sample.web.controller.exception; import org.aspectj.lang.annotation.AfterThrowing; import org.aspectj.lang.annotation.Aspect; import org.springframework.http.HttpStatus; import org.springframework.stereotype.Component; import com.iggroup.oss.sample.domain.exception.DuplicateReferenceException; import com.iggroup.oss.sample.domain.exception.ReferenceNotFoundException; import com.iggroup.oss.sample.web.controller.error.DuplicateReferenceError; import com.iggroup.oss.sample.web.controller.error.ReferenceNotFoundError; /** * Exception handler for all internal service exceptions, converting them to * SampleException with structured error contents and defined HTTP status code. */ @Aspect @Component("exceptionHandler") public class ExceptionHandler { /** * Exception handler for DuplicateReferenceExceptions * * @param dre the exception being handled */ @AfterThrowing(pointcut = "execution (* com.iggroup.wt.referencerest.service.*.*(..))", throwing = "dre") public void handleDuplicateKeyException(DuplicateReferenceException dre) { throw new SampleException(new DuplicateReferenceError(dre.getReference()), HttpStatus.BAD_REQUEST); } /** * Exception handler for ReferenceNotFoundExceptions * * @param nfe the exception being handled */ @AfterThrowing(pointcut = "execution (* com.iggroup.wt.referencerest.service.*.*(..))", throwing = "nfe") public void handleNotFoundException(ReferenceNotFoundException nfe) { throw new SampleException(new ReferenceNotFoundError(nfe.getReference()), HttpStatus.NOT_FOUND); } }