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 java.util.ArrayList;
  20 import java.util.List;
  21 import java.util.Map;
  22 import java.util.Set;
  23
  24 import javax.validation.ConstraintViolation;
  25 import javax.validation.ConstraintViolationException;
  26 import javax.validation.Path;
  27 import javax.ws.rs.core.MediaType;
  28 import javax.ws.rs.core.Response;
  29 import javax.ws.rs.ext.ExceptionMapper;
  30
  31 import org.apache.commons.collections4.CollectionUtils;
  32 import com.fasterxml.jackson.databind.JsonMappingException;
  33 import org.hibernate.validator.internal.engine.path.PathImpl;
  34 import org.openecomp.core.utilities.file.FileUtils;
  35 import org.openecomp.core.utilities.json.JsonUtil;
  36 import org.openecomp.sdc.common.errors.CoreException;
  37 import org.openecomp.sdc.common.errors.ErrorCategory;
  38 import org.openecomp.sdc.common.errors.ErrorCode;
  39 import org.openecomp.sdc.common.errors.ErrorCodeAndMessage;
  40 import org.openecomp.sdc.common.errors.GeneralErrorBuilder;
  41 import org.openecomp.sdc.common.errors.JsonMappingErrorBuilder;
  42 import org.openecomp.sdc.common.errors.ValidationErrorBuilder;
  43 import org.openecomp.sdc.logging.api.Logger;
  44 import org.openecomp.sdc.logging.api.LoggerFactory;
  45
  46 public class DefaultExceptionMapper implements ExceptionMapper<Exception> {
  47
  48     private static final String ERROR_CODES_TO_RESPONSE_STATUS_MAPPING_FILE = "errorCodesToResponseStatusMapping.json";
  49     @SuppressWarnings("unchecked")
  50     private static final Map<String, String> ERROR_CODE_TO_RESPONSE_STATUS = FileUtils.readViaInputStream(
  51             ERROR_CODES_TO_RESPONSE_STATUS_MAPPING_FILE, stream -> JsonUtil.json2Object(stream, Map.class));
  52
  53     private static final Logger LOGGER = LoggerFactory.getLogger(DefaultExceptionMapper.class);
  54
  55     @Override
  56     public Response toResponse(Exception exception) {
  57         Response response;
  58         if (exception instanceof CoreException) {
  59             response = transform(CoreException.class.cast(exception));
  60         } else if (exception instanceof ConstraintViolationException) {
  61             response = transform(ConstraintViolationException.class.cast(exception));
  62
  63         } else if (exception instanceof JsonMappingException) {
  64             response = transform(JsonMappingException.class.cast(exception));
  65
  66         } else {
  67             response = transform(exception);
  68         }
  69
  70         List<Object> contentTypes = new ArrayList<>();
  71         contentTypes.add(MediaType.APPLICATION_JSON);
  72         response.getMetadata().put("Content-Type", contentTypes);
  73         return response;
  74     }
  75
  76     private Response transform(CoreException coreException) {
  77         Response response;
  78         ErrorCode code = coreException.code();
  79         LOGGER.error(code.message(), coreException);
  80
  81         if (coreException.code().category().equals(ErrorCategory.APPLICATION)) {
  82             if (Response.Status.NOT_FOUND.name().equals(ERROR_CODE_TO_RESPONSE_STATUS.get(code.id()))) {
  83                 response = Response.status(Response.Status.NOT_FOUND).entity(toEntity(Response.Status.NOT_FOUND, code))
  84                                    .build();
  85             } else if (Response.Status.BAD_REQUEST.name().equals(ERROR_CODE_TO_RESPONSE_STATUS.get(code.id()))) {
  86                 response =
  87                         Response.status(Response.Status.BAD_REQUEST).entity(toEntity(Response.Status.BAD_REQUEST, code))
  88                                 .build();
  89             } else {
  90                 response = Response.status(Response.Status.EXPECTATION_FAILED)
  91                                    .entity(toEntity(Response.Status.EXPECTATION_FAILED, code)).build();
  92             }
  93         } else {
  94             response = Response.status(Response.Status.INTERNAL_SERVER_ERROR)
  95                                .entity(toEntity(Response.Status.INTERNAL_SERVER_ERROR, code)).build();
  96         }
  97
  98
  99         return response;
 100     }
 101
 102     private Response transform(ConstraintViolationException validationException) {
 103         Set<ConstraintViolation<?>> constraintViolationSet = validationException.getConstraintViolations();
 104         String message;
 105
 106         String fieldName = null;
 107         if (CollectionUtils.isEmpty(constraintViolationSet)) {
 108             message = validationException.getMessage();
 109         } else {
 110             // getting the first violation message for the output response.
 111             ConstraintViolation<?> constraintViolation = constraintViolationSet.iterator().next();
 112             message = constraintViolation.getMessage();
 113             fieldName = getFieldName(constraintViolation.getPropertyPath());
 114
 115         }
 116
 117         ErrorCode validationErrorCode = new ValidationErrorBuilder(message, fieldName).build();
 118
 119         LOGGER.error(validationErrorCode.message(), validationException);
 120         return Response.status(Response.Status.EXPECTATION_FAILED) //error 417
 121                        .entity(toEntity(Response.Status.EXPECTATION_FAILED, validationErrorCode)).build();
 122     }
 123
 124     private Response transform(JsonMappingException jsonMappingException) {
 125         ErrorCode jsonMappingErrorCode = new JsonMappingErrorBuilder().build();
 126         LOGGER.error(jsonMappingErrorCode.message(), jsonMappingException);
 127         return Response.status(Response.Status.EXPECTATION_FAILED) //error 417
 128                        .entity(toEntity(Response.Status.EXPECTATION_FAILED, jsonMappingErrorCode)).build();
 129     }
 130
 131     private Response transform(Exception exception) {
 132         ErrorCode errorCode = new GeneralErrorBuilder().build();
 133         LOGGER.error(errorCode.message(), exception);
 134         return Response.status(Response.Status.INTERNAL_SERVER_ERROR)
 135                        .entity(toEntity(Response.Status.INTERNAL_SERVER_ERROR, errorCode)).build();
 136     }
 137
 138     private String getFieldName(Path propertyPath) {
 139         return ((PathImpl) propertyPath).getLeafNode().toString();
 140     }
 141
 142     private Object toEntity(Response.Status status, ErrorCode code) {
 143         return new ErrorCodeAndMessage(status, code);
 144     }
 145 }