Java tutorial
/******************************************************************************* * 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 io.onedecision.engine; import io.onedecision.engine.decisions.api.DecisionException; import io.onedecision.engine.decisions.api.DecisionNotFoundException; import io.onedecision.engine.decisions.api.InvalidDmnException; import io.onedecision.engine.decisions.api.NoDmnFileInUploadException; import javax.validation.ConstraintViolationException; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.http.HttpStatus; import org.springframework.web.bind.annotation.ControllerAdvice; import org.springframework.web.bind.annotation.ExceptionHandler; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.bind.annotation.ResponseStatus; /** * Map exceptions to REST response codes. * * @author Tim Stephenson */ @ControllerAdvice public class OneDecisionExceptionHandler { protected static final Logger LOGGER = LoggerFactory.getLogger(OneDecisionExceptionHandler.class); @ResponseStatus(value = HttpStatus.BAD_REQUEST, reason = NoDmnFileInUploadException.MESSAGE) @ExceptionHandler(NoDmnFileInUploadException.class) public void handleBadRequest(Exception e) { LOGGER.error(e.getMessage(), e); } @ResponseStatus(value = HttpStatus.BAD_REQUEST) @ExceptionHandler(InvalidDmnException.class) @ResponseBody public InvalidDmnException handleInvalidDmn(InvalidDmnException e) { LOGGER.error(e.getMessage(), e); return e; } @ResponseStatus(value = HttpStatus.BAD_REQUEST) @ExceptionHandler(ConstraintViolationException.class) @ResponseBody public InvalidDmnException handleInvalidDmn(ConstraintViolationException e) { LOGGER.error(e.getMessage(), e); return InvalidDmnException.wrap((e.getConstraintViolations())); } @ResponseStatus(HttpStatus.NOT_FOUND) @ExceptionHandler(DecisionNotFoundException.class) public void handleNotFound(Exception e) { LOGGER.error(e.getMessage(), e); } @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR) @ExceptionHandler(DecisionException.class) public void handleInternalServerError(Exception e) { LOGGER.error(e.getMessage(), e); } }