70 lines
2.6 KiB
Java
70 lines
2.6 KiB
Java
/*
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* Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
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* in compliance with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the License
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* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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* or implied. See the License for the specific language governing permissions and limitations under
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* the License.
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*/
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package monasca.api.resource.exception;
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import javax.ws.rs.core.MediaType;
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import javax.ws.rs.core.Response;
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import javax.ws.rs.core.Response.Status;
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import javax.ws.rs.ext.ExceptionMapper;
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import javax.ws.rs.ext.Provider;
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import com.fasterxml.jackson.core.JsonGenerationException;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import monasca.api.resource.exception.Exceptions.FaultType;
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/**
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* Adapted from Dropwizard's JsonProcessingExceptionMapper.
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*/
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@Provider
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public class JsonProcessingExceptionMapper implements ExceptionMapper<JsonProcessingException> {
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@Override
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public Response toResponse(JsonProcessingException exception) {
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/*
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* If the error is in the JSON generation, it's a server error.
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*/
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if (exception instanceof JsonGenerationException)
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return Response
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.status(Status.INTERNAL_SERVER_ERROR)
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.type(MediaType.APPLICATION_JSON)
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.entity(
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Exceptions.buildLoggedErrorMessage(FaultType.SERVER_ERROR, "Error generating JSON",
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null, exception)).build();
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final String message = exception.getMessage();
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/*
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* If we can't deserialize the JSON because someone forgot a no-arg constructor, it's a server
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* error and we should inform the developer.
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*/
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if (message.startsWith("No suitable constructor found"))
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return Response
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.status(Status.INTERNAL_SERVER_ERROR)
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.type(MediaType.APPLICATION_JSON)
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.entity(
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Exceptions.buildLoggedErrorMessage(FaultType.SERVER_ERROR,
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"Unable to deserialize the provided JSON", null, exception)).build();
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/*
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* Otherwise, it's those pesky users.
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*/
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return Response
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.status(Status.BAD_REQUEST)
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.type(MediaType.APPLICATION_JSON)
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.entity(
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Exceptions.buildLoggedErrorMessage(FaultType.BAD_REQUEST,
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"Unable to process the provided JSON",
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Exceptions.stripLocationFromStacktrace(message), exception)).build();
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}
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}
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