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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 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.aai.rest;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.WebApplicationException;
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 org.onap.aai.exceptions.AAIException;
import org.onap.aai.logging.ErrorLogHelper;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.sun.istack.SAXParseException2;
/**
* The Class ExceptionHandler.
*/
@Provider
public class ExceptionHandler implements ExceptionMapper<Exception> {
private static final String AAI_4007 = "AAI_4007";
@Context
private HttpServletRequest request;
@Context
private HttpHeaders headers;
@Override
public Response toResponse(Exception exception) {
Response response = null;
ArrayList<String> templateVars = new ArrayList<>();
//the general case is that cxf will give us a WebApplicationException
//with a linked exception
if (exception instanceof WebApplicationException) {
WebApplicationException e = (WebApplicationException) exception;
if (e.getCause() instanceof SAXParseException2) {
templateVars.add("UnmarshalException");
AAIException ex = new AAIException(AAI_4007, exception);
response = Response
.status(400)
.entity(ErrorLogHelper.getRESTAPIErrorResponse(headers.getAcceptableMediaTypes(), ex, templateVars))
.build();
}
} else if (exception instanceof JsonParseException) {
//jackson does it differently so we get the direct JsonParseException
templateVars.add("JsonParseException");
AAIException ex = new AAIException(AAI_4007, exception);
response = Response
.status(400)
.entity(ErrorLogHelper.getRESTAPIErrorResponse(headers.getAcceptableMediaTypes(), ex, templateVars))
.build();
} else if (exception instanceof JsonMappingException) {
//jackson does it differently so we get the direct JsonParseException
templateVars.add("JsonMappingException");
AAIException ex = new AAIException(AAI_4007, exception);
response = Response
.status(400)
.entity(ErrorLogHelper.getRESTAPIErrorResponse(headers.getAcceptableMediaTypes(), ex, templateVars))
.build();
}
// it didn't get set above, we wrap a general fault here
if (response == null) {
Exception actual_e = exception;
if (exception instanceof WebApplicationException) {
WebApplicationException e = (WebApplicationException) exception;
response = e.getResponse();
} else {
templateVars.add(request.getMethod());
templateVars.add("unknown");
AAIException ex = new AAIException("AAI_4000", actual_e);
List<MediaType> mediaTypes = headers.getAcceptableMediaTypes();
int setError = 0;
for (MediaType mediaType : mediaTypes) {
if (MediaType.APPLICATION_XML_TYPE.isCompatible(mediaType)) {
response = Response
.status(400)
.type(MediaType.APPLICATION_XML_TYPE)
.entity(ErrorLogHelper.getRESTAPIErrorResponse(headers.getAcceptableMediaTypes(), ex, templateVars))
.build();
setError = 1;
}
}
if (setError == 0) {
response = Response
.status(400)
.type(MediaType.APPLICATION_JSON_TYPE)
.entity(ErrorLogHelper.getRESTAPIErrorResponse(headers.getAcceptableMediaTypes(), ex, templateVars))
.build();
}
}
}
return response;
}
}
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