118 lines
4.2 KiB
Objective-C
118 lines
4.2 KiB
Objective-C
/*
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* Copyright 2017 Google
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import <FirebaseCore/FIRApp.h>
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#import "FIRDatabaseConfig.h"
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#import "FIRDatabaseConfig_Private.h"
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#import "FIRNoopAuthTokenProvider.h"
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#import "FAuthTokenProvider.h"
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@interface FIRDatabaseConfig (Private)
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@property (nonatomic, strong, readwrite) NSString *sessionIdentifier;
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@end
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@implementation FIRDatabaseConfig
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- (id)init {
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[NSException raise:NSInvalidArgumentException format:@"Can't create config objects!"];
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return nil;
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}
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- (id)initWithSessionIdentifier:(NSString *)identifier authTokenProvider:(id<FAuthTokenProvider>)authTokenProvider {
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self = [super init];
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if (self != nil) {
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self->_sessionIdentifier = identifier;
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self->_callbackQueue = dispatch_get_main_queue();
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self->_persistenceCacheSizeBytes = 10*1024*1024; // Default cache size is 10MB
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self->_authTokenProvider = authTokenProvider;
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}
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return self;
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}
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- (void)assertUnfrozen {
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if (self.isFrozen) {
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[NSException raise:NSGenericException format:@"Can't modify config objects after they are in use for FIRDatabaseReferences."];
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}
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}
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- (void)setAuthTokenProvider:(id<FAuthTokenProvider>)authTokenProvider {
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[self assertUnfrozen];
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self->_authTokenProvider = authTokenProvider;
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}
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- (void)setPersistenceEnabled:(BOOL)persistenceEnabled {
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[self assertUnfrozen];
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self->_persistenceEnabled = persistenceEnabled;
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}
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- (void)setPersistenceCacheSizeBytes:(NSUInteger)persistenceCacheSizeBytes {
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[self assertUnfrozen];
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// Can't be less than 1MB
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if (persistenceCacheSizeBytes < 1024*1024) {
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[NSException raise:NSInvalidArgumentException format:@"The minimum cache size must be at least 1MB"];
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}
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if (persistenceCacheSizeBytes > 100*1024*1024) {
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[NSException raise:NSInvalidArgumentException format:@"Firebase Database currently doesn't support a cache size larger than 100MB"];
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}
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self->_persistenceCacheSizeBytes = persistenceCacheSizeBytes;
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}
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- (void)setCallbackQueue:(dispatch_queue_t)callbackQueue {
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[self assertUnfrozen];
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self->_callbackQueue = callbackQueue;
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}
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- (void)freeze {
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self->_isFrozen = YES;
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}
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// TODO: Only used for tests. Migrate to FIRDatabase and remove.
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+ (FIRDatabaseConfig *)defaultConfig {
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static dispatch_once_t onceToken;
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static FIRDatabaseConfig *defaultConfig;
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dispatch_once(&onceToken, ^{
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defaultConfig = [FIRDatabaseConfig configForName:@"default"];
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});
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return defaultConfig;
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}
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// TODO: This is only used for tests. We should fix them to go through FIRDatabase and remove
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// this method and the sessionsConfigs dictionary (FIRDatabase automatically creates one config per app).
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+ (FIRDatabaseConfig *)configForName:(NSString *)name {
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NSRegularExpression *expression = [NSRegularExpression regularExpressionWithPattern:@"^[a-zA-Z0-9-_]+$" options:0 error:nil];
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if ([expression numberOfMatchesInString:name options:0 range:NSMakeRange(0, name.length)] == 0) {
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[NSException raise:NSInvalidArgumentException format:@"Name can only contain [a-zA-Z0-9-_]"];
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}
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static dispatch_once_t onceToken;
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static NSMutableDictionary *sessionConfigs;
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dispatch_once(&onceToken, ^{
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sessionConfigs = [NSMutableDictionary dictionary];
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});
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@synchronized(sessionConfigs) {
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if (!sessionConfigs[name]) {
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id<FAuthTokenProvider> authTokenProvider = [FAuthTokenProvider authTokenProviderForApp:[FIRApp defaultApp]];
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sessionConfigs[name] = [[FIRDatabaseConfig alloc] initWithSessionIdentifier:name
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authTokenProvider:authTokenProvider];
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}
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return sessionConfigs[name];
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}
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}
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@end
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