ExceptionController.java

/*
 * Copyright 2014-2016 CyberVision, 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.
 */

package org.kaaproject.kaa.server.admin.controller;

import org.kaaproject.kaa.server.admin.shared.services.KaaAdminServiceException;
import org.kaaproject.kaa.server.admin.shared.services.ServiceErrorCode;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;

import java.io.IOException;

import javax.servlet.http.HttpServletResponse;

@ControllerAdvice
public class ExceptionController {

  /**
   * The Constant LOG.
   */
  private static final Logger LOG = LoggerFactory.getLogger(ExceptionController.class);

  /**
   * Handle kaa admin service exception.
   *
   * @param ex the exception to handling
   * @param response the http response
   */
  @ExceptionHandler(KaaAdminServiceException.class)
  public void handleKaaAdminServiceException(KaaAdminServiceException ex,
                                             HttpServletResponse response) {
    try {
      ServiceErrorCode errorCode = ex.getErrorCode();
      switch (errorCode) {
        case NOT_AUTHORIZED:
          response.sendError(HttpServletResponse.SC_UNAUTHORIZED, ex.getMessage());
          break;
        case PERMISSION_DENIED:
          response.sendError(HttpServletResponse.SC_FORBIDDEN, ex.getMessage());
          break;
        case INVALID_ARGUMENTS:
          response.sendError(HttpServletResponse.SC_BAD_REQUEST, ex.getMessage());
          break;
        case INVALID_SCHEMA:
          response.sendError(HttpServletResponse.SC_BAD_REQUEST, ex.getMessage());
          break;
        case FILE_NOT_FOUND:
          response.sendError(HttpServletResponse.SC_NOT_FOUND, ex.getMessage());
          break;
        case ITEM_NOT_FOUND:
          response.sendError(HttpServletResponse.SC_NOT_FOUND, ex.getMessage());
          break;
        case BAD_REQUEST_PARAMS:
          response.sendError(HttpServletResponse.SC_BAD_REQUEST, ex.getMessage());
          break;
        case GENERAL_ERROR:
          response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, ex.getMessage());
          break;
        case CONFLICT:
          response.sendError(HttpServletResponse.SC_CONFLICT, ex.getMessage());
          break;
        default:
          break;
      }
    } catch (IOException ioEx) {
      LOG.error("Can't handle exception", ioEx);
    }
  }

}