com.netflix.metacat.client.module.MetacatErrorDecoder Maven / Gradle / Ivy
/*
* Copyright 2016 Netflix, Inc.
* 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.netflix.metacat.client.module;
import com.fasterxml.jackson.databind.node.ObjectNode;
import com.netflix.metacat.common.exception.MetacatAlreadyExistsException;
import com.netflix.metacat.common.exception.MetacatBadRequestException;
import com.netflix.metacat.common.exception.MetacatException;
import com.netflix.metacat.common.exception.MetacatNotFoundException;
import com.netflix.metacat.common.exception.MetacatNotSupportedException;
import com.netflix.metacat.common.json.MetacatJson;
import com.netflix.metacat.common.json.MetacatJsonException;
import com.netflix.metacat.common.json.MetacatJsonLocator;
import feign.Response;
import feign.RetryableException;
import feign.Util;
import java.io.IOException;
/**
* Module that provides a error decoder, used to parse errors.
* @author amajumdar
*/
public class MetacatErrorDecoder extends feign.codec.ErrorDecoder.Default {
private static final MetacatJson METACAT_JSON = MetacatJsonLocator.INSTANCE;
@Override
public Exception decode(final String methodKey, final Response response) {
try {
String message = "";
if (response.body() != null) {
message = Util.toString(response.body().asReader());
try {
final ObjectNode body = METACAT_JSON.parseJsonObject(message);
message = body.path("error").asText();
} catch (MetacatJsonException ignored) {
}
}
switch (response.status()) {
case 501: //NOT IMPLEMENTED
case 415: //UNSUPPORTED_MEDIA_TYPE
return new MetacatNotSupportedException(message);
case 400: //BAD_REQUEST
return new MetacatBadRequestException(message);
case 404: //NOT_FOUND
return new MetacatNotFoundException(message);
case 409: //CONFLICT
return new MetacatAlreadyExistsException(message);
case 500: //INTERNAL_SERVER_ERROR
case 503: //SERVICE_UNAVAILABLE
return new RetryableException(message, null);
default:
return new MetacatException(message, javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR, null);
}
} catch (IOException e) {
return super.decode(methodKey, response);
}
}
}