/*
* Copyright 2011-2013 Amazon.com, Inc. or its affiliates. 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.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file 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.amazonaws.transform;
import com.amazonaws.AmazonServiceException;
import com.amazonaws.util.json.JSONObject;
/**
* Unmarshaller for JSON error responses from AWS services.
*/
public class JsonErrorUnmarshaller extends AbstractErrorUnmarshaller<JSONObject> {
public JsonErrorUnmarshaller() {}
protected JsonErrorUnmarshaller(Class<? extends AmazonServiceException> exceptionClass) {
super(exceptionClass);
}
public AmazonServiceException unmarshall(JSONObject json) throws Exception {
String message = parseMessage(json);
AmazonServiceException ase = newException(message);
String errorCode = parseErrorCode(json);
ase.setErrorCode(errorCode);
return ase;
}
public String parseMessage(JSONObject json) throws Exception {
String message = "";
if (json.has("message")) {
message = json.getString("message");
}
return message;
}
public String parseErrorCode(JSONObject json) throws Exception {
if (json.has("__type")) {
String type = json.getString("__type");
int separator = type.lastIndexOf("#");
return type.substring(separator + 1);
}
return null;
}
}