/**
* Copyright (C) 2014-2016 LinkedIn Corp. (pinot-core@linkedin.com)
*
* 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 com.linkedin.pinot.server.api.resources;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;
@Provider
public class DefaultExceptionMapper implements ExceptionMapper<WebApplicationException>
{
private static final transient ObjectMapper MAPPER = new ObjectMapper();
@Override
public Response toResponse(final WebApplicationException exception)
{
Response.ResponseBuilder builder = Response.status(exception.getResponse().getStatus())
.entity(toJson(exception))
.type(MediaType.APPLICATION_JSON);
return builder.build();
}
private String toJson(final WebApplicationException exception)
{
ErrorInfo errorInfo = new ErrorInfo(exception);
// difference between try and catch block is that
// ErrorInfo can contain more information that just message
try
{
return MAPPER.writeValueAsString(errorInfo);
}
catch (JsonProcessingException e)
{
return "{\"message\":\"Error converting error message: " + e.getMessage() + " to string\"}";
}
}
}