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/*-
* ============LICENSE_START=======================================================
* ONAP - SO
* ================================================================================
* 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.onap.so.apihandlerinfra.exceptions;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import java.util.stream.Collectors;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import org.onap.so.apihandlerinfra.logging.ErrorLoggerInfo;
import org.onap.so.logger.MessageEnum;
import org.onap.so.logger.MsoLogger;
import org.onap.so.serviceinstancebeans.RequestError;
import org.onap.so.serviceinstancebeans.ServiceException;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
@Provider
public class ApiExceptionMapper implements ExceptionMapper<ApiException> {
private static MsoLogger logger = MsoLogger.getMsoLogger(MsoLogger.Catalog.RA, ApiExceptionMapper.class);
private final JAXBContext context;
private final Marshaller marshaller;
@Context
private HttpHeaders headers;
public ApiExceptionMapper() {
try {
context = JAXBContext.newInstance(RequestError.class);
marshaller = context.createMarshaller();
} catch (JAXBException e) {
logger.debug("could not create JAXB marshaller");
throw new IllegalStateException(e);
}
}
@Override
public Response toResponse(ApiException exception) {
return Response.status(exception.getHttpResponseCode()).entity(buildErrorString(exception)).build();
}
protected String buildErrorString(ApiException exception) {
String errorText = exception.getMessage();
String messageId = exception.getMessageID();
List<String> variables = exception.getVariables();
ErrorLoggerInfo errorLoggerInfo = exception.getErrorLoggerInfo();
if (errorText.length() > 1999) {
errorText = errorText.substring(0, 1999);
}
List<MediaType> typeList = Optional.ofNullable(headers.getAcceptableMediaTypes()).orElse(new ArrayList<>());
List<String> typeListString = typeList.stream().map(item -> item.toString()).collect(Collectors.toList());
MediaType type;
if (typeListString.stream().anyMatch(item -> item.contains(MediaType.APPLICATION_XML))) {
type = MediaType.APPLICATION_XML_TYPE;
} else if (typeListString.stream().anyMatch(item -> typeListString.contains(MediaType.APPLICATION_JSON))) {
type = MediaType.APPLICATION_JSON_TYPE;
} else {
type = MediaType.APPLICATION_JSON_TYPE;
}
return buildServiceErrorResponse(errorText,messageId,variables, type);
}
protected String buildServiceErrorResponse(String errorText, String messageId, List<String> variables, MediaType type){
RequestError re = new RequestError();
ServiceException se = new ServiceException();
se.setMessageId(messageId);
se.setText(errorText);
if (variables != null) {
for (String variable : variables) {
se.getVariables().add(variable);
}
}
re.setServiceException(se);
String requestErrorStr;
ObjectMapper mapper = createObjectMapper();
mapper.configure(SerializationFeature.WRAP_ROOT_VALUE, true);
mapper.setSerializationInclusion(JsonInclude.Include.NON_DEFAULT);
try {
if (MediaType.APPLICATION_JSON_TYPE.equals(type)) {
requestErrorStr = mapper.writeValueAsString(re);
} else {
StringWriter sw = new StringWriter();
this.getMarshaller().marshal(re, sw);
requestErrorStr = sw.toString();
}
} catch (JsonProcessingException | JAXBException e) {
String errorMsg = "Exception in buildServiceErrorResponse writing exceptionType to string " + e.getMessage();
logger.error(MessageEnum.GENERAL_EXCEPTION, "BuildServiceErrorResponse", "", "", MsoLogger.ErrorCode.DataError, errorMsg, e);
return errorMsg;
}
return requestErrorStr;
}
protected void writeErrorLog(Exception e, String errorText, ErrorLoggerInfo errorLogInfo) {
if( e!= null)
logger.error(e);
if(errorLogInfo != null)
logger.error(errorLogInfo.getLoggerMessageType().toString(), errorLogInfo.getErrorSource(), errorLogInfo.getTargetEntity(), errorLogInfo.getTargetServiceName(), errorLogInfo.getErrorCode(), errorText);
}
public ObjectMapper createObjectMapper(){
return new ObjectMapper();
}
public Marshaller getMarshaller() {
return marshaller;
}
}
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