bpmn/MSOCommonBPMN/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.annotation.Priority;
  28 import javax.ws.rs.BadRequestException;
  29 import javax.ws.rs.ForbiddenException;
  30 import javax.ws.rs.InternalServerErrorException;
  31 import javax.ws.rs.NotAcceptableException;
  32 import javax.ws.rs.NotAllowedException;
  33 import javax.ws.rs.NotAuthorizedException;
  34 import javax.ws.rs.NotFoundException;
  35 import javax.ws.rs.NotSupportedException;
  36 import javax.ws.rs.WebApplicationException;
  37 import javax.ws.rs.client.ClientRequestContext;
  38 import javax.ws.rs.client.ClientResponseContext;
  39 import javax.ws.rs.client.ClientResponseFilter;
  40 import javax.ws.rs.core.Response;
  41 import javax.ws.rs.ext.Provider;
  42
  43 @Provider
  44 @Priority(value = 1)
  45 public abstract class ResponseExceptionMapper implements ClientResponseFilter {
  46
  47         @Override
  48         public void filter(ClientRequestContext requestContext, ClientResponseContext responseContext) throws IOException {
  49                 if (responseContext.getStatus() >= 300) {
  50                         String message = "empty message";
  51                         if (responseContext.hasEntity()) {
  52                                 Optional<String> result = this.extractMessage(responseContext.getEntityStream());
  53                                 if (result.isPresent()) {
  54                                         message = result.get();
  55                                 }
  56                         }
  57                         Response.Status status = Response.Status.fromStatusCode(responseContext.getStatus());
  58                         WebApplicationException webAppException;
  59                         switch (status) {
  60                         case BAD_REQUEST:
  61                                 webAppException = new BadRequestException(message);
  62                                 break;
  63                         case UNAUTHORIZED:
  64                                 webAppException = new NotAuthorizedException(message);
  65                                 break;
  66                         case FORBIDDEN:
  67                                 webAppException = new ForbiddenException(message);
  68                                 break;
  69                         case NOT_FOUND:
  70                                 webAppException = new NotFoundException(message);
  71                                 break;
  72                         case METHOD_NOT_ALLOWED:
  73                                 webAppException = new NotAllowedException(message);
  74                                 break;
  75                         case NOT_ACCEPTABLE:
  76                                 webAppException = new NotAcceptableException(message);
  77                                 break;
  78                         case PRECONDITION_FAILED:
  79                                 webAppException = new PreconditionFailedException(message);
  80                                 break;
  81                         case UNSUPPORTED_MEDIA_TYPE:
  82                                 webAppException = new NotSupportedException(message);
  83                                 break;
  84                         case INTERNAL_SERVER_ERROR:
  85                                 webAppException = new InternalServerErrorException(message);
  86                                 break;
  87                         case SERVICE_UNAVAILABLE:
  88                                 webAppException = new WebApplicationException(message);
  89                                 break;
  90                         default:
  91                                 webAppException = new WebApplicationException(message);
  92                         }
  93                         throw webAppException;
  94                 }
  95         }
  96
  97         public abstract Optional<String> extractMessage(InputStream stream) throws IOException;
  98 }