org.trustedanalytics.usermanagement.common.WebErrorHandlers Maven / Gradle / Ivy
/**
* Copyright (c) 2015 Intel Corporation
*
* 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.trustedanalytics.usermanagement.common;
import org.apache.commons.lang.StringUtils;
import org.codehaus.jackson.map.ObjectMapper;
import org.codehaus.jackson.type.TypeReference;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.http.HttpStatus;
import org.springframework.http.converter.HttpMessageNotReadableException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.client.HttpStatusCodeException;
import org.trustedanalytics.utils.errorhandling.ErrorFormatter;
import org.trustedanalytics.utils.errorhandling.RestErrorHandler;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import static org.springframework.http.HttpStatus.BAD_REQUEST;
@ControllerAdvice
@Order(Ordered.LOWEST_PRECEDENCE)
public class WebErrorHandlers {
private static final Logger LOGGER = LoggerFactory.getLogger(WebErrorHandlers.class);
@ExceptionHandler(HttpMessageNotReadableException.class)
public void badRequest(Exception e, HttpServletResponse response) throws IOException {
logAndSendErrorResponse(response, BAD_REQUEST, e);
}
@ExceptionHandler(HttpStatusCodeException.class)
public void handleHttpStatusCodeException(
HttpStatusCodeException e,
HttpServletResponse response) throws IOException {
String message = extractErrorFromJSON(e.getResponseBodyAsString());
message = StringUtils.isNotBlank(message) ? message : e.getMessage();
logAndSendErrorResponse(response, e.getStatusCode(), message, e);
}
@ExceptionHandler(FeignResponseException.class)
public void handleFeignException(
FeignResponseException e,
HttpServletResponse response) throws IOException {
logAndSendErrorResponse(response, e.getStatusCode(), e.getMessage(), e);
}
@ExceptionHandler(Exception.class)
public void handleException(Exception e, HttpServletResponse response) throws Exception {
RestErrorHandler defaultErrorHandler = new RestErrorHandler();
defaultErrorHandler.handleException(e, response);
}
private static long generateErrorId() {
return new Date().getTime();
}
private static void logAndSendErrorResponse(
HttpServletResponse response,
HttpStatus status,
Exception ex) throws IOException {
logAndSendErrorResponse(response, status, status.getReasonPhrase(), ex);
}
private static void logAndSendErrorResponse(
HttpServletResponse response,
HttpStatus status,
String reason,
Exception ex) throws IOException {
long errorId = generateErrorId();
String errorMessage = ErrorFormatter.formatErrorMessage(reason, errorId);
LOGGER.error(errorMessage, ex);
response.sendError(status.value(), errorMessage);
}
private static String extractErrorFromJSON(String json){
Map map = new HashMap<>();
try {
ObjectMapper mapper = new ObjectMapper();
TypeReference> typeReference = new TypeReference>() {
};
map = mapper.readValue(json, typeReference);
} catch (Exception e) {
String msg = "Exception raised while extracting error from JSON " ;
LOGGER.error(msg, e);
}
return map.get("description");
}
}