AbstractJsonExceptionParser.php
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<?php
/**
* Copyright 2010-2013 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.
*/
namespace Aws\Common\Exception\Parser;
use Guzzle\Http\Message\RequestInterface;
use Guzzle\Http\Message\Response;
/**
* Parses JSON encoded exception responses
*/
abstract class AbstractJsonExceptionParser implements ExceptionParserInterface
{
/**
* {@inheritdoc}
*/
public function parse(RequestInterface $request, Response $response)
{
// Build array of default error data
$data = array(
'code' => null,
'message' => null,
'type' => $response->isClientError() ? 'client' : 'server',
'request_id' => (string) $response->getHeader('x-amzn-RequestId'),
'parsed' => null
);
// Parse the json and normalize key casings
if (null !== $json = json_decode($response->getBody(true), true)) {
$data['parsed'] = array_change_key_case($json);
}
// Do additional, protocol-specific parsing and return the result
$data = $this->doParse($data, $response);
// Remove "Fault" suffix from exception names
if (isset($data['code']) && strpos($data['code'], 'Fault')) {
$data['code'] = preg_replace('/^([a-zA-Z]+)Fault$/', '$1', $data['code']);
}
return $data;
}
/**
* Pull relevant exception data out of the parsed json
*
* @param array $data The exception data
* @param Response $response The response from the service containing the error
*
* @return array
*/
abstract protected function doParse(array $data, Response $response);
}