blob: 14f5d4723208aa9e40a7e629b7bc830f2befafae (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/*
* 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 "Firestore/Source/Local/FSTReferenceSet.h"
#import "Firestore/Source/Local/FSTDocumentReference.h"
#include "Firestore/core/src/firebase/firestore/model/document_key.h"
using firebase::firestore::model::DocumentKey;
NS_ASSUME_NONNULL_BEGIN
#pragma mark - FSTReferenceSet
@interface FSTReferenceSet ()
/** A set of outstanding references to a document sorted by key. */
@property(nonatomic, strong) FSTImmutableSortedSet<FSTDocumentReference *> *referencesByKey;
/** A set of outstanding references to a document sorted by target ID (or batch ID). */
@property(nonatomic, strong) FSTImmutableSortedSet<FSTDocumentReference *> *referencesByID;
@end
@implementation FSTReferenceSet
#pragma mark - Initializer
- (instancetype)init {
self = [super init];
if (self) {
_referencesByKey =
[FSTImmutableSortedSet setWithComparator:FSTDocumentReferenceComparatorByKey];
_referencesByID = [FSTImmutableSortedSet setWithComparator:FSTDocumentReferenceComparatorByID];
}
return self;
}
#pragma mark - Testing helper methods
- (BOOL)isEmpty {
return [self.referencesByKey isEmpty];
}
- (NSUInteger)count {
return self.referencesByKey.count;
}
#pragma mark - Public methods
- (void)addReferenceToKey:(const DocumentKey &)key forID:(int)ID {
FSTDocumentReference *reference = [[FSTDocumentReference alloc] initWithKey:key ID:ID];
self.referencesByKey = [self.referencesByKey setByAddingObject:reference];
self.referencesByID = [self.referencesByID setByAddingObject:reference];
}
- (void)addReferencesToKeys:(FSTDocumentKeySet *)keys forID:(int)ID {
[keys enumerateObjectsUsingBlock:^(FSTDocumentKey *key, BOOL *stop) {
[self addReferenceToKey:key forID:ID];
}];
}
- (void)removeReferenceToKey:(const DocumentKey &)key forID:(int)ID {
[self removeReference:[[FSTDocumentReference alloc] initWithKey:key ID:ID]];
}
- (void)removeReferencesToKeys:(FSTDocumentKeySet *)keys forID:(int)ID {
[keys enumerateObjectsUsingBlock:^(FSTDocumentKey *key, BOOL *stop) {
[self removeReferenceToKey:key forID:ID];
}];
}
- (void)removeReferencesForID:(int)ID {
FSTDocumentReference *start =
[[FSTDocumentReference alloc] initWithKey:DocumentKey::Empty() ID:ID];
FSTDocumentReference *end =
[[FSTDocumentReference alloc] initWithKey:DocumentKey::Empty() ID:(ID + 1)];
[self.referencesByID enumerateObjectsFrom:start
to:end
usingBlock:^(FSTDocumentReference *reference, BOOL *stop) {
[self removeReference:reference];
}];
}
- (void)removeAllReferences {
for (FSTDocumentReference *reference in self.referencesByKey.objectEnumerator) {
[self removeReference:reference];
}
}
- (void)removeReference:(FSTDocumentReference *)reference {
self.referencesByKey = [self.referencesByKey setByRemovingObject:reference];
self.referencesByID = [self.referencesByID setByRemovingObject:reference];
[self.garbageCollector addPotentialGarbageKey:reference.key];
}
- (FSTDocumentKeySet *)referencedKeysForID:(int)ID {
FSTDocumentReference *start =
[[FSTDocumentReference alloc] initWithKey:DocumentKey::Empty() ID:ID];
FSTDocumentReference *end =
[[FSTDocumentReference alloc] initWithKey:DocumentKey::Empty() ID:(ID + 1)];
__block FSTDocumentKeySet *keys = [FSTDocumentKeySet keySet];
[self.referencesByID enumerateObjectsFrom:start
to:end
usingBlock:^(FSTDocumentReference *reference, BOOL *stop) {
keys = [keys setByAddingObject:reference.key];
}];
return keys;
}
- (BOOL)containsKey:(const DocumentKey &)key {
// Create a reference with a zero ID as the start position to find any document reference with
// this key.
FSTDocumentReference *reference = [[FSTDocumentReference alloc] initWithKey:key ID:0];
NSEnumerator<FSTDocumentReference *> *enumerator =
[self.referencesByKey objectEnumeratorFrom:reference];
FSTDocumentReference *_Nullable firstReference = [enumerator nextObject];
return firstReference && firstReference.key == reference.key;
}
@end
NS_ASSUME_NONNULL_END
|
