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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.openecomp.sdcrests.errors;
import org.codehaus.jackson.map.JsonMappingException;
import org.hibernate.validator.internal.engine.path.PathImpl;
import org.openecomp.sdc.logging.api.Logger;
import org.openecomp.sdc.logging.api.LoggerFactory;
import org.openecomp.core.utilities.CommonMethods;
import org.openecomp.core.utilities.file.FileUtils;
import org.openecomp.core.utilities.json.JsonUtil;
import org.openecomp.sdc.common.errors.CoreException;
import org.openecomp.sdc.common.errors.ErrorCategory;
import org.openecomp.sdc.common.errors.ErrorCode;
import org.openecomp.sdc.common.errors.ErrorCodeAndMessage;
import org.openecomp.sdc.common.errors.GeneralErrorBuilder;
import org.openecomp.sdc.common.errors.JsonMappingErrorBuilder;
import org.openecomp.sdc.common.errors.ValidationErrorBuilder;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import javax.validation.Path;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.core.Response;
public class DefaultExceptionMapper implements ExceptionMapper<Exception> {
private static final String ERROR_CODES_TO_RESPONSE_STATUS_MAPPING_FILE =
"errorCodesToResponseStatusMapping.json";
private static Map<String, String> errorCodeToResponseStatus = JsonUtil
.json2Object(FileUtils.getFileInputStream(ERROR_CODES_TO_RESPONSE_STATUS_MAPPING_FILE),
Map.class);
private static Logger 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);
}
try {
writeStackTraceToFile(exception);
} catch (IOException e) {
e.printStackTrace();
}
List<Object> contentTypes = new ArrayList<>();
contentTypes.add(MediaType.APPLICATION_JSON);
response.getMetadata().put("Content-Type", contentTypes);
return response;
}
private Response transform(CoreException coreException) {
Response response;
ErrorCode code = coreException.code();
logger.error(code.message(), coreException);
if (coreException.code().category().equals(ErrorCategory.APPLICATION)) {
if (Response.Status.NOT_FOUND.name().equals(errorCodeToResponseStatus.get(code.id()))) {
response = Response
.status(Response.Status.NOT_FOUND)
.entity(toEntity(Response.Status.NOT_FOUND, code))
.build();
} else if (Response.Status.BAD_REQUEST.name()
.equals(errorCodeToResponseStatus.get(code.id()))) {
response = Response
.status(Response.Status.BAD_REQUEST)
.entity(toEntity(Response.Status.BAD_REQUEST, code))
.build();
} else {
response = Response
.status(Response.Status.EXPECTATION_FAILED)
.entity(toEntity(Response.Status.EXPECTATION_FAILED, code))
.build();
}
} else {
response = Response
.status(Response.Status.INTERNAL_SERVER_ERROR)
.entity(toEntity(Response.Status.INTERNAL_SERVER_ERROR, code))
.build();
}
return response;
}
private Response transform(ConstraintViolationException validationException) {
Set<ConstraintViolation<?>> constraintViolationSet =
validationException.getConstraintViolations();
String message;
String fieldName = null;
if (!CommonMethods.isEmpty(constraintViolationSet)) {
// getting the first violation message for the output response.
ConstraintViolation<?> constraintViolation = constraintViolationSet.iterator().next();
message = constraintViolation.getMessage();
fieldName = getFieldName(constraintViolation.getPropertyPath());
} else {
message = validationException.getMessage();
}
ErrorCode validationErrorCode = new ValidationErrorBuilder(message, fieldName).build();
logger.error(validationErrorCode.message(), validationException);
return Response
.status(Response.Status.EXPECTATION_FAILED) //error 417
.entity(toEntity(Response.Status.EXPECTATION_FAILED, validationErrorCode))
.build();
}
private Response transform(JsonMappingException jsonMappingException) {
ErrorCode jsonMappingErrorCode = new JsonMappingErrorBuilder().build();
logger.error(jsonMappingErrorCode.message(), jsonMappingException);
return Response
.status(Response.Status.EXPECTATION_FAILED) //error 417
.entity(toEntity(Response.Status.EXPECTATION_FAILED, jsonMappingErrorCode))
.build();
}
private Response transform(Exception exception) {
ErrorCode generalErrorCode = new GeneralErrorBuilder(exception.getMessage()).build();
logger.error(generalErrorCode.message(), exception);
return Response
.status(Response.Status.INTERNAL_SERVER_ERROR)
.entity(toEntity(Response.Status.INTERNAL_SERVER_ERROR, generalErrorCode))
.build();
}
private String getFieldName(Path propertyPath) {
return ((PathImpl) propertyPath).getLeafNode().toString();
}
private Object toEntity(Response.Status status, ErrorCode code) {
return new ErrorCodeAndMessage(status, code);
}
private void writeStackTraceToFile(Exception exception) throws IOException {
File file = new File("stack_trace.txt");
OutputStream outputStream = new FileOutputStream(file);
if(!file.exists()){
file.createNewFile();
}
PrintWriter printWriter = new PrintWriter(file);
exception.printStackTrace(printWriter);
printWriter.close();
}
}
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