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/*
* Copyright 2017 Google
*
* 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.
*/
#import "FIRMessagingPubSubRegistrar.h"
#import "FIRMessagingCheckinService.h"
#import "FIRMessagingDefines.h"
#import "FIRMessagingPubSubRegistrar.h"
#import "FIRMessagingTopicsCommon.h"
#import "NSError+FIRMessaging.h"
@interface FIRMessagingPubSubRegistrar ()
@property(nonatomic, readwrite, strong) FIRMessagingCheckinService *checkinService;
@property(nonatomic, readonly, strong) NSOperationQueue *topicOperations;
// Common errors, instantiated, to avoid generating multiple copies
@property(nonatomic, readwrite, strong) NSError *operationInProgressError;
@end
@implementation FIRMessagingPubSubRegistrar
- (instancetype)init {
FIRMessagingInvalidateInitializer();
}
- (instancetype)initWithCheckinService:(FIRMessagingCheckinService *)checkinService {
self = [super init];
if (self) {
_checkinService = checkinService;
_topicOperations = [[NSOperationQueue alloc] init];
// Do 10 topic operations at a time; it's enough to keep the TCP connection to the host alive,
// saving hundreds of milliseconds on each request (compared to a serial queue).
_topicOperations.maxConcurrentOperationCount = 10;
}
return self;
}
- (void)stopAllSubscriptionRequests {
[self.topicOperations cancelAllOperations];
}
- (void)updateSubscriptionToTopic:(NSString *)topic
withToken:(NSString *)token
options:(NSDictionary *)options
shouldDelete:(BOOL)shouldDelete
handler:(FIRMessagingTopicOperationCompletion)handler {
FIRMessagingTopicAction action = FIRMessagingTopicActionSubscribe;
if (shouldDelete) {
action = FIRMessagingTopicActionUnsubscribe;
}
FIRMessagingTopicOperation *operation =
[[FIRMessagingTopicOperation alloc] initWithTopic:topic
action:action
token:token
options:options
checkinService:self.checkinService
completion:handler];
[self.topicOperations addOperation:operation];
}
@end
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