forked from rabbitmq/rabbitmq-objc-client
/
RMQConfirmationTransaction.m
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/
RMQConfirmationTransaction.m
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// This source code is dual-licensed under the Mozilla Public License ("MPL"),
// version 1.1 and the Apache License ("ASL"), version 2.0.
//
// The ASL v2.0:
//
// ---------------------------------------------------------------------------
// Copyright 2017-2022 VMware, Inc. or its affiliates.
//
// 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
//
// https://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.
// ---------------------------------------------------------------------------
//
// The MPL v2.0:
//
// ---------------------------------------------------------------------------
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at https://mozilla.org/MPL/2.0/.
//
// Copyright (c) 2007-2022 VMware, Inc. or its affiliates. All rights reserved.
//
// Alternatively, the contents of this file may be used under the terms
// of the Apache Standard license (the "ASL License"), in which case the
// provisions of the ASL License are applicable instead of those
// above. If you wish to allow use of your version of this file only
// under the terms of the ASL License and not to allow others to use
// your version of this file under the MPL, indicate your decision by
// deleting the provisions above and replace them with the notice and
// other provisions required by the ASL License. If you do not delete
// the provisions above, a recipient may use your version of this file
// under either the MPL or the ASL License.
// ---------------------------------------------------------------------------
#import "RMQConfirmationTransaction.h"
@interface RMQConfirmationTransaction ()
@property (nonatomic, readwrite) RMQConfirmationCallback callback;
@property (nonatomic, readwrite) id<RMQLocalSerialQueue> delayQueue;
@property (nonatomic, readwrite) BOOL isComplete;
@end
@implementation RMQConfirmationTransaction
- (instancetype)initWithDelayQueue:(id<RMQLocalSerialQueue>)queue {
self = [super init];
if (self) {
self.isComplete = NO;
self.callback = nil;
self.unconfirmed = [NSMutableSet new];
self.confirmedAcks = [NSMutableSet new];
self.confirmedNacks = [NSMutableSet new];
self.delayQueue = queue;
}
return self;
}
- (void)setCallback:(RMQConfirmationCallback)callback
timeout:(NSNumber *)timeoutInSecs {
self.callback = callback;
[self.delayQueue delayedBy:timeoutInSecs enqueue:^{
for (NSNumber *tag in self.unconfirmed) {
[self.confirmedNacks addObject:tag];
}
[self complete];
}];
}
- (void)addUnconfirmed:(NSNumber *)tag {
[self.unconfirmed addObject:tag];
}
- (BOOL)isUnconfirmed:(NSNumber *)tag {
return [self.unconfirmed containsObject:tag];
}
- (void)ack:(NSNumber *)tag {
[self.unconfirmed removeObject:tag];
[self.confirmedAcks addObject:tag];
[self completeIfReady];
}
- (void)nack:(NSNumber *)tag {
[self.unconfirmed removeObject:tag];
[self.confirmedNacks addObject:tag];
[self completeIfReady];
}
- (void)completeIfReady {
if (self.callback &&
self.unconfirmed.count == 0 &&
(self.confirmedAcks.count > 0 || self.confirmedNacks.count > 0)) {
[self complete];
}
}
# pragma mark - Private
- (void)complete {
if (self.isComplete) return;
self.callback(self.confirmedAcks, self.confirmedNacks);
self.isComplete = YES;
}
@end