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/*
* Copyright © 2016-2018 European Support Limited
*
* Licensed 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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.openecomp.activityspec.errors;
import java.util.Set;
import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status;
import javax.ws.rs.ext.ExceptionMapper;
import org.codehaus.jackson.map.JsonMappingException;
import org.hibernate.validator.internal.engine.path.PathImpl;
import org.openecomp.sdc.common.errors.CoreException;
import org.openecomp.sdc.logging.api.Logger;
import org.openecomp.sdc.logging.api.LoggerFactory;
public class DefaultExceptionMapper implements ExceptionMapper<Exception> {
private static final Logger LOGGER = LoggerFactory.getLogger(DefaultExceptionMapper.class);
@Override
public Response toResponse(Exception exception) {
Response response;
if (exception instanceof CoreException) {
response = transform(CoreException.class.cast(exception));
} else if (exception instanceof ConstraintViolationException) {
response = transform(ConstraintViolationException.class.cast(exception));
} else if (exception instanceof JsonMappingException) {
response = transform(JsonMappingException.class.cast(exception));
} else {
response = transform(exception);
}
return response;
}
private Response transform(CoreException coreException) {
LOGGER.error("Transforming CoreException to Error Response :", coreException);
return generateResponse(Status.EXPECTATION_FAILED, new ActivitySpecErrorResponse(Status.EXPECTATION_FAILED, coreException.code().id(),
coreException.getMessage()) );
}
private Response transform(ConstraintViolationException validationException) {
LOGGER.error("Transforming ConstraintViolationException to Error Response :",
validationException);
Set<ConstraintViolation<?>> constraintViolationSet = validationException
.getConstraintViolations();
String message;
String fieldName = null;
if (constraintViolationSet != null) {
// getting the first violation message for the output response.
ConstraintViolation<?> constraintViolation = constraintViolationSet.iterator().next();
message = constraintViolation.getMessage();
fieldName = ((PathImpl) constraintViolation.getPropertyPath()).getLeafNode().toString();
} else {
message = validationException.getMessage();
}
return generateResponse(Status.EXPECTATION_FAILED, new ActivitySpecErrorResponse(Status.EXPECTATION_FAILED,
"FIELD_VALIDATION_ERROR_ERR_ID",
String.format(message,fieldName)));
}
private Response transform(Exception exception) {
LOGGER.error("Transforming Exception to Error Response " + exception);
return generateResponse(Status.INTERNAL_SERVER_ERROR, new ActivitySpecErrorResponse(Status.INTERNAL_SERVER_ERROR,
"GENERAL_ERROR_REST_ID",
"An error has occurred: " + exception.getMessage()));
}
private Response transform(JsonMappingException jsonMappingException) {
LOGGER.error("Transforming JsonMappingException to Error Response " + jsonMappingException);
return generateResponse(Status.EXPECTATION_FAILED, new ActivitySpecErrorResponse(Status.EXPECTATION_FAILED,"JSON_MAPPING_ERROR_ERR_ID",
"Invalid Json Input"));
}
private Response generateResponse(Response.Status status, ActivitySpecErrorResponse
activitySpecErrorResponse) {
return Response.status(status).entity(activitySpecErrorResponse).type(MediaType
.APPLICATION_JSON).build();
}
}
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