//
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// OSSURLRequestRetryHandler.m
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// AliyunOSSSDK
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//
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// Created by huaixu on 2018/1/22.
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// Copyright © 2018年 aliyun. All rights reserved.
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//
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#import "OSSURLRequestRetryHandler.h"
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#import "OSSNetworkingRequestDelegate.h"
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#import "OSSDefine.h"
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@implementation OSSURLRequestRetryHandler
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- (OSSNetworkingRetryType)shouldRetry:(uint32_t)currentRetryCount
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requestDelegate:(OSSNetworkingRequestDelegate *)delegate
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response:(NSHTTPURLResponse *)response
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error:(NSError *)error {
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if (currentRetryCount >= self.maxRetryCount) {
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return OSSNetworkingRetryTypeShouldNotRetry;
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}
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/**
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When onRecieveData is set, no retry.
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When the error is task cancellation, no retry.
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*/
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if (delegate.onRecieveData != nil) {
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return OSSNetworkingRetryTypeShouldNotRetry;
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}
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if ([error.domain isEqualToString:OSSClientErrorDomain]) {
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if (error.code == OSSClientErrorCodeTaskCancelled) {
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return OSSNetworkingRetryTypeShouldNotRetry;
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} else {
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return OSSNetworkingRetryTypeShouldRetry;
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}
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}
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switch (response.statusCode) {
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case 403:
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if ([[[error userInfo] objectForKey:@"Code"] isEqualToString:@"RequestTimeTooSkewed"]) {
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return OSSNetworkingRetryTypeShouldCorrectClockSkewAndRetry;
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}
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break;
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default:
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break;
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}
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return OSSNetworkingRetryTypeShouldNotRetry;
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}
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- (NSTimeInterval)timeIntervalForRetry:(uint32_t)currentRetryCount retryType:(OSSNetworkingRetryType)retryType {
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switch (retryType) {
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case OSSNetworkingRetryTypeShouldCorrectClockSkewAndRetry:
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case OSSNetworkingRetryTypeShouldRefreshCredentialsAndRetry:
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return 0;
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default:
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return pow(2, currentRetryCount) * 200 / 1000;
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}
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}
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+ (instancetype)defaultRetryHandler {
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OSSURLRequestRetryHandler * retryHandler = [OSSURLRequestRetryHandler new];
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retryHandler.maxRetryCount = OSSDefaultRetryCount;
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return retryHandler;
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}
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@end
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