Viewing file:  RetryDeciderTrait.php (2.79 KB) -rw-r--r--
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<?php
/**
* Copyright 2017 Google 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.
*/
namespace Google\Cloud\Core;
use GuzzleHttp\Exception\RequestException;
/**
* Provides methods for deciding if a request should be retried.
*/
trait RetryDeciderTrait
{
use JsonTrait;
/**
* @var array
*/
private $httpRetryCodes = [
500,
502,
503
];
/**
* @var array
*/
private $httpRetryMessages = [
'rateLimitExceeded',
'userRateLimitExceeded'
];
/**
* Determines whether or not the request should be retried.
*
* @param bool $shouldRetryMessages Whether or not to attempt retrying based
* on the failure message.
* @return callable
*/
private function getRetryFunction($shouldRetryMessages = true)
{
$httpRetryCodes = $this->httpRetryCodes;
$httpRetryMessages = $this->httpRetryMessages;
return function (\Exception $ex) use ($httpRetryCodes, $httpRetryMessages, $shouldRetryMessages) {
$statusCode = $ex->getCode();
if (in_array($statusCode, $httpRetryCodes)) {
return true;
}
if (!$shouldRetryMessages) {
return false;
}
$message = ($ex instanceof RequestException && $ex->hasResponse())
? (string) $ex->getResponse()->getBody()
: $ex->getMessage();
try {
$message = $this->jsonDecode(
$message,
true
);
} catch (\InvalidArgumentException $ex) {
return false;
}
if (!isset($message['error']['errors'])) {
return false;
}
foreach ($message['error']['errors'] as $error) {
if (in_array($error['reason'], $httpRetryMessages)) {
return true;
}
}
return false;
};
}
/**
* @param array $codes
*/
private function setHttpRetryCodes(array $codes)
{
$this->httpRetryCodes = $codes;
}
/**
* @param array $messages
*/
private function setHttpRetryMessages(array $messages)
{
$this->httpRetryMessages = $messages;
}
}
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