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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
/*
* 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 <Foundation/Foundation.h>
#import "FIRAppInternal.h"
#import "FIRLogger.h"
#import "FIRDatabase.h"
#import "FIRDatabase_Private.h"
#import "FIRDatabaseQuery_Private.h"
#import "FRepoManager.h"
#import "FValidation.h"
#import "FIRDatabaseConfig_Private.h"
#import "FRepoInfo.h"
#import "FIRDatabaseConfig.h"
#import "FIRDatabaseReference_Private.h"
#import "FIROptions.h"
@interface FIRDatabase ()
@property (nonatomic, strong) FRepoInfo *repoInfo;
@property (nonatomic, strong) FIRDatabaseConfig *config;
@property (nonatomic, strong) FRepo *repo;
@end
@implementation FIRDatabase
// The STR and STR_EXPAND macro allow a numeric version passed to he compiler driver
// with a -D to be treated as a string instead of an invalid floating point value.
#define STR(x) STR_EXPAND(x)
#define STR_EXPAND(x) #x
static const char *FIREBASE_SEMVER = (const char *)STR(FIRDatabase_VERSION);
/**
* A static NSMutableDictionary of FirebaseApp names to FirebaseDatabase instance. To ensure thread-
* safety, it should only be accessed in databaseForApp, which is synchronized.
*
* TODO: This serves a duplicate purpose as RepoManager. We should clean up.
* TODO: We should maybe be conscious of leaks and make this a weak map or similar
* but we have a lot of work to do to allow FirebaseDatabase/Repo etc. to be GC'd.
*/
+ (NSMutableDictionary *)instances {
static dispatch_once_t pred = 0;
static NSMutableDictionary *instances;
dispatch_once(&pred, ^{
instances = [NSMutableDictionary dictionary];
});
return instances;
}
+ (FIRDatabase *)database {
if (![FIRApp isDefaultAppConfigured]) {
[NSException raise:@"FIRAppNotConfigured"
format:@"Failed to get default Firebase Database instance. Must call `[FIRApp "
@"configure]` (`FirebaseApp.configure()` in Swift) before using "
@"Firebase Database."];
}
FIRApp *app = [FIRApp defaultApp];
return [FIRDatabase databaseForApp:app];
}
+ (FIRDatabase *)databaseForApp:(FIRApp *)app {
if (app == nil) {
[NSException raise:@"InvalidFIRApp" format:@"nil FIRApp instance passed to databaseForApp."];
}
NSMutableDictionary *instances = [self instances];
@synchronized (instances) {
FIRDatabase *database = instances[app.name];
if (!database) {
NSString *databaseUrl = app.options.databaseURL;
if (databaseUrl == nil) {
[NSException raise:@"MissingDatabaseURL" format:@"Failed to get FIRDatabase instance: FIRApp object has no "
"databaseURL in its FirebaseOptions object."];
}
FParsedUrl *parsedUrl = [FUtilities parseUrl:databaseUrl];
if (![parsedUrl.path isEmpty]) {
[NSException raise:@"InvalidDatabaseURL" format:@"Configured Database URL '%@' is invalid. It should "
"point to the root of a Firebase Database but it includes a path: %@",
databaseUrl, [parsedUrl.path toString]];
}
id<FAuthTokenProvider> authTokenProvider = [FAuthTokenProvider authTokenProviderForApp:app];
// If this is the default app, don't set the session persistence key so that we use our
// default ("default") instead of the FIRApp default ("[DEFAULT]") so that we
// preserve the default location used by the legacy Firebase SDK.
NSString *sessionIdentifier = @"default";
if ([FIRApp isDefaultAppConfigured] && app == [FIRApp defaultApp]) {
sessionIdentifier = app.name;
}
FIRDatabaseConfig *config = [[FIRDatabaseConfig alloc] initWithSessionIdentifier:sessionIdentifier
authTokenProvider:authTokenProvider];
database = [[FIRDatabase alloc] initWithApp:app repoInfo:parsedUrl.repoInfo config:config];
instances[app.name] = database;
}
return database;
}
}
+ (NSString *) buildVersion {
// TODO: Restore git hash when build moves back to git
return [NSString stringWithFormat:@"%s_%s", FIREBASE_SEMVER, __DATE__];
}
+ (FIRDatabase *)createDatabaseForTests:(FRepoInfo *)repoInfo config:(FIRDatabaseConfig *)config {
FIRDatabase *db = [[FIRDatabase alloc] initWithApp:nil repoInfo:repoInfo config:config];
[db ensureRepo];
return db;
}
+ (NSString *) sdkVersion {
return [NSString stringWithUTF8String:FIREBASE_SEMVER];
}
+ (void) setLoggingEnabled:(BOOL)enabled {
[FUtilities setLoggingEnabled:enabled];
FFLog(@"I-RDB024001", @"BUILD Version: %@", [FIRDatabase buildVersion]);
}
- (id)initWithApp:(FIRApp *)app repoInfo:(FRepoInfo *)info config:(FIRDatabaseConfig *)config {
self = [super init];
if (self != nil) {
self->_repoInfo = info;
self->_config = config;
self->_app = app;
}
return self;
}
- (FIRDatabaseReference *)reference {
[self ensureRepo];
return [[FIRDatabaseReference alloc] initWithRepo:self.repo path:[FPath empty]];
}
- (FIRDatabaseReference *)referenceWithPath:(NSString *)path {
[self ensureRepo];
[FValidation validateFrom:@"referenceWithPath" validRootPathString:path];
FPath *childPath = [[FPath alloc] initWith:path];
return [[FIRDatabaseReference alloc] initWithRepo:self.repo path:childPath];
}
- (FIRDatabaseReference *)referenceFromURL:(NSString *)databaseUrl {
[self ensureRepo];
if (databaseUrl == nil) {
[NSException raise:@"InvalidDatabaseURL" format:@"Invalid nil url passed to referenceFromURL:"];
}
FParsedUrl *parsedUrl = [FUtilities parseUrl:databaseUrl];
[FValidation validateFrom:@"referenceFromURL:" validURL:parsedUrl];
if (![parsedUrl.repoInfo.host isEqualToString:_repoInfo.host]) {
[NSException raise:@"InvalidDatabaseURL" format:@"Invalid URL (%@) passed to getReference(). URL was expected "
"to match configured Database URL: %@", databaseUrl, [self reference].URL];
}
return [[FIRDatabaseReference alloc] initWithRepo:self.repo path:parsedUrl.path];
}
- (void)purgeOutstandingWrites {
[self ensureRepo];
dispatch_async([FIRDatabaseQuery sharedQueue], ^{
[self.repo purgeOutstandingWrites];
});
}
- (void)goOnline {
[self ensureRepo];
dispatch_async([FIRDatabaseQuery sharedQueue], ^{
[self.repo resume];
});
}
- (void)goOffline {
[self ensureRepo];
dispatch_async([FIRDatabaseQuery sharedQueue], ^{
[self.repo interrupt];
});
}
- (void)setPersistenceEnabled:(BOOL)persistenceEnabled {
[self assertUnfrozen:@"setPersistenceEnabled"];
self->_config.persistenceEnabled = persistenceEnabled;
}
- (BOOL)persistenceEnabled {
return self->_config.persistenceEnabled;
}
- (void)setPersistenceCacheSizeBytes:(NSUInteger)persistenceCacheSizeBytes {
[self assertUnfrozen:@"setPersistenceCacheSizeBytes"];
self->_config.persistenceCacheSizeBytes = persistenceCacheSizeBytes;
}
- (NSUInteger)persistenceCacheSizeBytes {
return self->_config.persistenceCacheSizeBytes;
}
- (void)setCallbackQueue:(dispatch_queue_t)callbackQueue {
[self assertUnfrozen:@"setCallbackQueue"];
self->_config.callbackQueue = callbackQueue;
}
- (dispatch_queue_t)callbackQueue {
return self->_config.callbackQueue;
}
- (void) assertUnfrozen:(NSString*)methodName {
if (self.repo != nil) {
[NSException raise:@"FIRDatabaseAlreadyInUse" format:@"Calls to %@ must be made before any other usage of "
"FIRDatabase instance.", methodName];
}
}
- (void) ensureRepo {
if (self.repo == nil) {
self.repo = [FRepoManager createRepo:self.repoInfo config:self.config database:self];
}
}
@end
|
