org.apache.zeppelin.rest.exception.WebApplicationExceptionMapper Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.zeppelin.rest.exception;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;
import org.apache.zeppelin.rest.message.gson.ExceptionSerializer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Provider
public class WebApplicationExceptionMapper implements ExceptionMapper {
private static final Logger LOGGER = LoggerFactory.getLogger(WebApplicationException.class);
private final Gson gson;
public WebApplicationExceptionMapper() {
GsonBuilder gsonBuilder = new GsonBuilder().enableComplexMapKeySerialization();
gsonBuilder.registerTypeHierarchyAdapter(
Exception.class, new ExceptionSerializer());
this.gson = gsonBuilder.create();
}
@Override
public Response toResponse(Throwable exception) {
if (exception instanceof WebApplicationException) {
return ((WebApplicationException) exception).getResponse();
} else {
LOGGER.error("Error response", exception);
return Response.status(500).entity(gson.toJson(exception)).build();
}
}
}