content: /**
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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
   * <p>
   * http://www.apache.org/licenses/LICENSE-2.0
   * <p>
   * 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.apache.atlas.web.security;
  
  import org.json.simple.JSONObject;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.security.core.AuthenticationException;
  import org.springframework.security.web.authentication.AuthenticationFailureHandler;
  import org.springframework.stereotype.Component;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import java.io.IOException;
  
  @Component
  public class AtlasAuthenticationFailureHandler implements AuthenticationFailureHandler {
      private static final Logger LOG = LoggerFactory.getLogger(AtlasAuthenticationFailureHandler.class);
  
      @Override
      public void onAuthenticationFailure(HttpServletRequest httpServletRequest, HttpServletResponse response, AuthenticationException e) throws IOException {
          LOG.debug("Login Failure ", e);
  
          JSONObject json = new JSONObject();
  
          json.put("msgDesc", e.getMessage());
  
          response.setContentType("application/json");
          response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
          response.setCharacterEncoding("UTF-8");
  
          response.getWriter().write(json.toJSONString());
      }
  }
  