common/src/main/java/org/openecomp/mso/client/ResponseExceptionMapper.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP - SO
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.openecomp.mso.client;
  22
  23 import java.io.IOException;
  24 import java.io.InputStream;
  25 import java.util.Optional;
  26
  27 import javax.ws.rs.BadRequestException;
  28 import javax.ws.rs.ForbiddenException;
  29 import javax.ws.rs.InternalServerErrorException;
  30 import javax.ws.rs.NotAcceptableException;
  31 import javax.ws.rs.NotAllowedException;
  32 import javax.ws.rs.NotAuthorizedException;
  33 import javax.ws.rs.NotFoundException;
  34 import javax.ws.rs.NotSupportedException;
  35 import javax.ws.rs.WebApplicationException;
  36 import javax.ws.rs.client.ClientRequestContext;
  37 import javax.ws.rs.client.ClientResponseContext;
  38 import javax.ws.rs.client.ClientResponseFilter;
  39 import javax.ws.rs.core.Response;
  40
  41 public abstract class ResponseExceptionMapper implements ClientResponseFilter {
  42
  43         @Override
  44         public void filter(ClientRequestContext requestContext, ClientResponseContext responseContext) throws IOException {
  45                 if (responseContext.getStatus() >= 300) {
  46                         String message = "empty message";
  47                         if (responseContext.hasEntity()) {
  48                                 Optional<String> result = this.extractMessage(responseContext.getEntityStream());
  49                                 if (result.isPresent()) {
  50                                         message = result.get();
  51                                 }
  52                         }
  53                         Response.Status status = Response.Status.fromStatusCode(responseContext.getStatus());
  54                         WebApplicationException webAppException;
  55                         switch (status) {
  56                         case BAD_REQUEST:
  57                                 webAppException = new BadRequestException(message);
  58                                 break;
  59                         case UNAUTHORIZED:
  60                                 webAppException = new NotAuthorizedException(message);
  61                                 break;
  62                         case FORBIDDEN:
  63                                 webAppException = new ForbiddenException(message);
  64                                 break;
  65                         case NOT_FOUND:
  66                                 webAppException = new NotFoundException(message);
  67                                 break;
  68                         case METHOD_NOT_ALLOWED:
  69                                 webAppException = new NotAllowedException(message);
  70                                 break;
  71                         case NOT_ACCEPTABLE:
  72                                 webAppException = new NotAcceptableException(message);
  73                                 break;
  74                         case PRECONDITION_FAILED:
  75                                 webAppException = new PreconditionFailedException(message);
  76                                 break;
  77                         case UNSUPPORTED_MEDIA_TYPE:
  78                                 webAppException = new NotSupportedException(message);
  79                                 break;
  80                         case INTERNAL_SERVER_ERROR:
  81                                 webAppException = new InternalServerErrorException(message);
  82                                 break;
  83                         case SERVICE_UNAVAILABLE:
  84                                 webAppException = new WebApplicationException(message);
  85                                 break;
  86                         default:
  87                                 webAppException = new WebApplicationException(message);
  88                         }
  89                         throw webAppException;
  90                 }
  91         }
  92
  93         public abstract Optional<String> extractMessage(InputStream stream) throws IOException;
  94 }