Java tutorial
/* * Copyright 2014 Open mHealth * * 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. */ package org.openmhealth.dsu.controller; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.http.HttpStatus; import org.springframework.security.authentication.AuthenticationCredentialsNotFoundException; import org.springframework.web.bind.MissingServletRequestParameterException; import org.springframework.web.bind.annotation.ControllerAdvice; import org.springframework.web.bind.annotation.ExceptionHandler; import org.springframework.web.bind.annotation.ResponseStatus; import javax.servlet.http.HttpServletRequest; /** * A set of exception handlers that are applied to all controllers, primarily to prevent information disclosure. * * @author Emerson Farrugia */ @ControllerAdvice public class GenericExceptionHandlingControllerAdvice { private static final Logger log = LoggerFactory.getLogger(GenericExceptionHandlingControllerAdvice.class); @ExceptionHandler(AuthenticationCredentialsNotFoundException.class) @ResponseStatus(HttpStatus.UNAUTHORIZED) public void handleAuthenticationCredentialsNotFoundException(Exception e, HttpServletRequest request) { log.debug("A {} request for '{}' failed authentication.", request.getMethod(), request.getPathInfo(), e); } @ExceptionHandler(MissingServletRequestParameterException.class) @ResponseStatus(HttpStatus.BAD_REQUEST) public void handleMissingServletRequestParameterException(MissingServletRequestParameterException e, HttpServletRequest request) { log.debug("A {} request for '{}' failed because parameter '{}' is missing.", request.getMethod(), request.getPathInfo(), e.getParameterName(), e); } @ExceptionHandler(Exception.class) @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR) public void handleException(Exception e, HttpServletRequest request) { log.warn("A {} request for '{}' failed.", request.getMethod(), request.getPathInfo(), e); } }