gerrit.onap Code Review - sdc.git/blob

   1 /*
   2  * Copyright © 2016-2018 European Support Limited
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.openecomp.sdcrests.errors;
  18
  19 import org.codehaus.jackson.map.JsonMappingException;
  20 import org.hibernate.validator.internal.engine.path.PathImpl;
  21 import org.openecomp.core.utilities.CommonMethods;
  22 import org.openecomp.core.utilities.file.FileUtils;
  23 import org.openecomp.core.utilities.json.JsonUtil;
  24 import org.openecomp.sdc.common.errors.CoreException;
  25 import org.openecomp.sdc.common.errors.ErrorCategory;
  26 import org.openecomp.sdc.common.errors.ErrorCode;
  27 import org.openecomp.sdc.common.errors.ErrorCodeAndMessage;
  28 import org.openecomp.sdc.common.errors.GeneralErrorBuilder;
  29 import org.openecomp.sdc.common.errors.JsonMappingErrorBuilder;
  30 import org.openecomp.sdc.common.errors.ValidationErrorBuilder;
  31 import org.openecomp.sdc.logging.api.Logger;
  32 import org.openecomp.sdc.logging.api.LoggerFactory;
  33
  34 import javax.validation.ConstraintViolation;
  35 import javax.validation.ConstraintViolationException;
  36 import javax.validation.Path;
  37 import javax.ws.rs.core.MediaType;
  38 import javax.ws.rs.core.Response;
  39 import javax.ws.rs.ext.ExceptionMapper;
  40 import java.util.ArrayList;
  41 import java.util.List;
  42 import java.util.Map;
  43 import java.util.Set;
  44
  45 public class DefaultExceptionMapper implements ExceptionMapper<Exception> {
  46   private static final String ERROR_CODES_TO_RESPONSE_STATUS_MAPPING_FILE =
  47       "errorCodesToResponseStatusMapping.json";
  48   @SuppressWarnings("unchecked")
  49   private static final Map<String, String> ERROR_CODE_TO_RESPONSE_STATUS =
  50           FileUtils.readViaInputStream(ERROR_CODES_TO_RESPONSE_STATUS_MAPPING_FILE,
  51               stream -> JsonUtil.json2Object(stream, Map.class));
  52
  53   private static final Logger LOGGER = LoggerFactory.getLogger(DefaultExceptionMapper
  54       .class);
  55
  56   @Override
  57   public Response toResponse(Exception exception) {
  58     Response response;
  59     if (exception instanceof CoreException) {
  60       response = transform(CoreException.class.cast(exception));
  61     } else if (exception instanceof ConstraintViolationException) {
  62       response = transform(ConstraintViolationException.class.cast(exception));
  63
  64     } else if (exception instanceof JsonMappingException) {
  65       response = transform(JsonMappingException.class.cast(exception));
  66
  67     } else {
  68       response = transform(exception);
  69     }
  70
  71     List<Object> contentTypes = new ArrayList<>();
  72     contentTypes.add(MediaType.APPLICATION_JSON);
  73     response.getMetadata().put("Content-Type", contentTypes);
  74     return response;
  75   }
  76
  77   private Response transform(CoreException coreException) {
  78     Response response;
  79     ErrorCode code = coreException.code();
  80     LOGGER.error(code.message(), coreException);
  81
  82     if (coreException.code().category().equals(ErrorCategory.APPLICATION)) {
  83       if (Response.Status.NOT_FOUND.name().equals(ERROR_CODE_TO_RESPONSE_STATUS.get(code.id()))) {
  84         response = Response
  85             .status(Response.Status.NOT_FOUND)
  86             .entity(toEntity(Response.Status.NOT_FOUND, code))
  87             .build();
  88       } else if (Response.Status.BAD_REQUEST.name()
  89           .equals(ERROR_CODE_TO_RESPONSE_STATUS.get(code.id()))) {
  90         response = Response
  91             .status(Response.Status.BAD_REQUEST)
  92             .entity(toEntity(Response.Status.BAD_REQUEST, code))
  93             .build();
  94       } else {
  95         response = Response
  96             .status(Response.Status.EXPECTATION_FAILED)
  97             .entity(toEntity(Response.Status.EXPECTATION_FAILED, code))
  98             .build();
  99       }
 100     } else {
 101       response = Response
 102           .status(Response.Status.INTERNAL_SERVER_ERROR)
 103           .entity(toEntity(Response.Status.INTERNAL_SERVER_ERROR, code))
 104           .build();
 105     }
 106
 107
 108     return response;
 109   }
 110
 111   private Response transform(ConstraintViolationException validationException) {
 112     Set<ConstraintViolation<?>> constraintViolationSet =
 113         validationException.getConstraintViolations();
 114     String message;
 115
 116     String fieldName = null;
 117     if (!CommonMethods.isEmpty(constraintViolationSet)) {
 118       // getting the first violation message for the output response.
 119       ConstraintViolation<?> constraintViolation = constraintViolationSet.iterator().next();
 120       message = constraintViolation.getMessage();
 121       fieldName = getFieldName(constraintViolation.getPropertyPath());
 122
 123     } else {
 124       message = validationException.getMessage();
 125     }
 126
 127     ErrorCode validationErrorCode = new ValidationErrorBuilder(message, fieldName).build();
 128
 129     LOGGER.error(validationErrorCode.message(), validationException);
 130     return Response
 131         .status(Response.Status.EXPECTATION_FAILED) //error 417
 132         .entity(toEntity(Response.Status.EXPECTATION_FAILED, validationErrorCode))
 133         .build();
 134   }
 135
 136   private Response transform(JsonMappingException jsonMappingException) {
 137     ErrorCode jsonMappingErrorCode = new JsonMappingErrorBuilder().build();
 138     LOGGER.error(jsonMappingErrorCode.message(), jsonMappingException);
 139     return Response
 140         .status(Response.Status.EXPECTATION_FAILED) //error 417
 141         .entity(toEntity(Response.Status.EXPECTATION_FAILED, jsonMappingErrorCode))
 142         .build();
 143   }
 144
 145   private Response transform(Exception exception) {
 146     ErrorCode errorCode = new GeneralErrorBuilder().build();
 147     LOGGER.error(errorCode.message(), exception);
 148     return Response
 149         .status(Response.Status.INTERNAL_SERVER_ERROR)
 150         .entity(toEntity(Response.Status.INTERNAL_SERVER_ERROR, errorCode))
 151         .build();
 152   }
 153
 154   private String getFieldName(Path propertyPath) {
 155     return ((PathImpl) propertyPath).getLeafNode().toString();
 156   }
 157
 158   private Object toEntity(Response.Status status, ErrorCode code) {
 159     return new ErrorCodeAndMessage(status, code);
 160   }
 161 }