| 1 |
efrain |
1 |
/*
|
|
|
2 |
* Copyright 2018 Google
|
|
|
3 |
*
|
|
|
4 |
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
|
5 |
* you may not use this file except in compliance with the License.
|
|
|
6 |
* You may obtain a copy of the License at
|
|
|
7 |
*
|
|
|
8 |
* http://www.apache.org/licenses/LICENSE-2.0
|
|
|
9 |
*
|
|
|
10 |
* Unless required by applicable law or agreed to in writing, software
|
|
|
11 |
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
|
12 |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
|
13 |
* See the License for the specific language governing permissions and
|
|
|
14 |
* limitations under the License.
|
|
|
15 |
*/
|
|
|
16 |
|
|
|
17 |
#import "GoogleDataTransport/GDTCORLibrary/Private/GDTCORTransformer.h"
|
|
|
18 |
#import "GoogleDataTransport/GDTCORLibrary/Private/GDTCORTransformer_Private.h"
|
|
|
19 |
|
|
|
20 |
#import "GoogleDataTransport/GDTCORLibrary/Internal/GDTCORAssert.h"
|
|
|
21 |
#import "GoogleDataTransport/GDTCORLibrary/Internal/GDTCORLifecycle.h"
|
|
|
22 |
#import "GoogleDataTransport/GDTCORLibrary/Internal/GDTCORStorageProtocol.h"
|
|
|
23 |
#import "GoogleDataTransport/GDTCORLibrary/Public/GoogleDataTransport/GDTCORConsoleLogger.h"
|
|
|
24 |
#import "GoogleDataTransport/GDTCORLibrary/Public/GoogleDataTransport/GDTCOREvent.h"
|
|
|
25 |
#import "GoogleDataTransport/GDTCORLibrary/Public/GoogleDataTransport/GDTCOREventTransformer.h"
|
|
|
26 |
|
|
|
27 |
#import "GoogleDataTransport/GDTCORLibrary/Private/GDTCOREvent_Private.h"
|
|
|
28 |
#import "GoogleDataTransport/GDTCORLibrary/Private/GDTCORRegistrar_Private.h"
|
|
|
29 |
|
|
|
30 |
@implementation GDTCORTransformer
|
|
|
31 |
|
|
|
32 |
+ (instancetype)sharedInstance {
|
|
|
33 |
static GDTCORTransformer *eventTransformer;
|
|
|
34 |
static dispatch_once_t onceToken;
|
|
|
35 |
dispatch_once(&onceToken, ^{
|
|
|
36 |
eventTransformer = [[self alloc] init];
|
|
|
37 |
});
|
|
|
38 |
return eventTransformer;
|
|
|
39 |
}
|
|
|
40 |
|
|
|
41 |
- (instancetype)init {
|
|
|
42 |
return [self initWithApplication:[GDTCORApplication sharedApplication]];
|
|
|
43 |
}
|
|
|
44 |
|
|
|
45 |
- (instancetype)initWithApplication:(id<GDTCORApplicationProtocol>)application {
|
|
|
46 |
self = [super init];
|
|
|
47 |
if (self) {
|
|
|
48 |
_eventWritingQueue =
|
|
|
49 |
dispatch_queue_create("com.google.GDTCORTransformer", DISPATCH_QUEUE_SERIAL);
|
|
|
50 |
_application = application;
|
|
|
51 |
}
|
|
|
52 |
return self;
|
|
|
53 |
}
|
|
|
54 |
|
|
|
55 |
- (void)transformEvent:(GDTCOREvent *)event
|
|
|
56 |
withTransformers:(NSArray<id<GDTCOREventTransformer>> *)transformers
|
|
|
57 |
onComplete:(void (^_Nullable)(BOOL wasWritten, NSError *_Nullable error))completion {
|
|
|
58 |
GDTCORAssert(event, @"You can't write a nil event");
|
|
|
59 |
|
|
|
60 |
__block GDTCORBackgroundIdentifier bgID = GDTCORBackgroundIdentifierInvalid;
|
|
|
61 |
__auto_type __weak weakApplication = self.application;
|
|
|
62 |
bgID = [self.application beginBackgroundTaskWithName:@"GDTTransformer"
|
|
|
63 |
expirationHandler:^{
|
|
|
64 |
[weakApplication endBackgroundTask:bgID];
|
|
|
65 |
bgID = GDTCORBackgroundIdentifierInvalid;
|
|
|
66 |
}];
|
|
|
67 |
|
|
|
68 |
__auto_type completionWrapper = ^(BOOL wasWritten, NSError *_Nullable error) {
|
|
|
69 |
if (completion) {
|
|
|
70 |
completion(wasWritten, error);
|
|
|
71 |
}
|
|
|
72 |
|
|
|
73 |
// The work is done, cancel the background task if it's valid.
|
|
|
74 |
[weakApplication endBackgroundTask:bgID];
|
|
|
75 |
bgID = GDTCORBackgroundIdentifierInvalid;
|
|
|
76 |
};
|
|
|
77 |
|
|
|
78 |
dispatch_async(_eventWritingQueue, ^{
|
|
|
79 |
GDTCOREvent *transformedEvent = event;
|
|
|
80 |
for (id<GDTCOREventTransformer> transformer in transformers) {
|
|
|
81 |
if ([transformer respondsToSelector:@selector(transformGDTEvent:)]) {
|
|
|
82 |
GDTCORLogDebug(@"Applying a transformer to event %@", event);
|
|
|
83 |
transformedEvent = [transformer transformGDTEvent:event];
|
|
|
84 |
if (!transformedEvent) {
|
|
|
85 |
completionWrapper(NO, nil);
|
|
|
86 |
return;
|
|
|
87 |
}
|
|
|
88 |
} else {
|
|
|
89 |
GDTCORLogError(GDTCORMCETransformerDoesntImplementTransform,
|
|
|
90 |
@"Transformer doesn't implement transformGDTEvent: %@", transformer);
|
|
|
91 |
completionWrapper(NO, nil);
|
|
|
92 |
return;
|
|
|
93 |
}
|
|
|
94 |
}
|
|
|
95 |
|
|
|
96 |
id<GDTCORStorageProtocol> storage =
|
|
|
97 |
[GDTCORRegistrar sharedInstance].targetToStorage[@(event.target)];
|
|
|
98 |
|
|
|
99 |
[storage storeEvent:transformedEvent onComplete:completionWrapper];
|
|
|
100 |
});
|
|
|
101 |
}
|
|
|
102 |
|
|
|
103 |
#pragma mark - GDTCORLifecycleProtocol
|
|
|
104 |
|
|
|
105 |
- (void)appWillTerminate:(GDTCORApplication *)application {
|
|
|
106 |
// Flush the queue immediately.
|
|
|
107 |
dispatch_sync(_eventWritingQueue, ^{
|
|
|
108 |
});
|
|
|
109 |
}
|
|
|
110 |
|
|
|
111 |
@end
|