com.kixeye.chassis.transport.http.HttpExceptionHandler.java Source code

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Here is the source code for com.kixeye.chassis.transport.http.HttpExceptionHandler.java

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package com.kixeye.chassis.transport.http;

/*
 * #%L
 * Chassis Transport Core
 * %%
 * Copyright (C) 2014 KIXEYE, Inc
 * %%
 * 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%
 */

import com.kixeye.chassis.transport.ExceptionServiceErrorMapper;
import com.kixeye.chassis.transport.dto.ServiceError;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Handles exception from the APIs.
 * 
 * @author ebahtijaragic
 */
@ControllerAdvice
public class HttpExceptionHandler {
    private static final Logger logger = LoggerFactory.getLogger(HttpExceptionHandler.class);

    @ExceptionHandler(Exception.class)
    @ResponseBody
    public ServiceError defaultErrorHandler(HttpServletRequest request, HttpServletResponse response, Exception ex)
            throws Exception {
        ServiceError error = ExceptionServiceErrorMapper.mapException(ex);

        switch (error.code) {
        case ExceptionServiceErrorMapper.UNKNOWN_ERROR_CODE:
            response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);

            logger.error("Unexpected error", ex);
            break;
        case ExceptionServiceErrorMapper.VALIDATION_ERROR_CODE:
            response.setStatus(HttpServletResponse.SC_BAD_REQUEST);

            if (logger.isDebugEnabled()) {
                logger.debug("Validation exception", ex);
            }
            break;
        case ExceptionServiceErrorMapper.SECURITY_ERROR_CODE:
            response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);

            if (logger.isDebugEnabled()) {
                logger.debug("Security exception", ex);
            }
            break;
        default:
            if (ex instanceof HttpServiceException) {
                HttpServiceException httpEx = (HttpServiceException) ex;

                response.setStatus(httpEx.httpResponseCode);
            }

            logger.warn("Service exception", ex);
            break;
        }

        return error;
    }
}