b79a7e5a00
Monotone-Revision: c91eef7edcfd08d414664c25a590b6268a7e58e2 Monotone-Author: wsourdeau@inverse.ca Monotone-Date: 2009-11-29T04:19:32 Monotone-Branch: ca.inverse.sogo
249 lines
5.8 KiB
Objective-C
249 lines
5.8 KiB
Objective-C
/* SOGoDefaultsSource.m - this file is part of SOGo
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*
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* Copyright (C) 2009 Inverse inc.
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*
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* Author: Wolfgang Sourdeau <wsourdeau@inverse.ca>
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#import <Foundation/NSArray.h>
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#import <Foundation/NSDictionary.h>
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#import <Foundation/NSException.h>
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#import <Foundation/NSString.h>
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#import <Foundation/NSValue.h>
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#import <NGExtensions/NSObject+Logs.h>
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#define NEEDS_DEFAULTS_SOURCE_INTERNAL 1
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#import "SOGoDefaultsSource.h"
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NSString *SOGoDefaultsSourceInvalidSource = @"SOGoDefaultsSourceInvalidSource";
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NSString *SOGoDefaultsSourceUnmutableSource = @"SOGoDefaultsSourceUnmutableSource";
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@implementation SOGoDefaultsSource
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+ (id) defaultsSourceWithSource: (id) newSource
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andParentSource: (SOGoDefaultsSource *) newParentSource
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{
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SOGoDefaultsSource *sogoDefaultsSource;
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sogoDefaultsSource = [self new];
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[sogoDefaultsSource autorelease];
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[sogoDefaultsSource setSource: newSource];
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[sogoDefaultsSource setParentSource: newParentSource];
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if ([sogoDefaultsSource migrate])
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[sogoDefaultsSource synchronize];
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return sogoDefaultsSource;
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}
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- (id) init
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{
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if ((self = [super init]))
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{
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source = nil;
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parentSource = nil;
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isMutable = NO;
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}
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return self;
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}
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- (void) dealloc
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{
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[source release];
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[parentSource release];
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[super dealloc];
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}
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- (void) setSource: (id) newSource
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{
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if ([newSource respondsToSelector: @selector (objectForKey:)])
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{
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ASSIGN (source, newSource);
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isMutable = [source respondsToSelector: @selector (setObject:forKey:)];
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}
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else
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[NSException raise: SOGoDefaultsSourceInvalidSource
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format: @"UserDefaults source '%@'"
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@" does not respond to 'object:forKey:'", newSource];
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}
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- (id) source
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{
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return source;
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}
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- (void) setParentSource: (SOGoDefaultsSource *) newParentSource
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{
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ASSIGN (parentSource, newParentSource);
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}
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- (void) setObject: (id) value
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forKey: (NSString *) key
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{
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if (isMutable)
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[source setObject: value forKey: key];
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else
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[NSException raise: SOGoDefaultsSourceUnmutableSource
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format: @"UserDefaults source '%@' is not mutable", source];
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}
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- (id) objectForKey: (NSString *) objectKey
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{
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id objectForKey;
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objectForKey = [source objectForKey: objectKey];
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if (!objectForKey)
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objectForKey = [parentSource objectForKey: objectKey];
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return objectForKey;
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}
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- (void) removeObjectForKey: (NSString *) key
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{
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[source removeObjectForKey: key];
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}
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- (void) setBool: (BOOL) value
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forKey: (NSString *) key
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{
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[self setObject: [NSNumber numberWithBool: value]
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forKey: key];
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}
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- (BOOL) boolForKey: (NSString *) key
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{
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return [[self objectForKey: key] boolValue];
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}
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- (void) setFloat: (float) value
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forKey: (NSString *) key
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{
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[self setObject: [NSNumber numberWithFloat: value]
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forKey: key];
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}
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- (float) floatForKey: (NSString *) key
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{
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return [[self objectForKey: key] floatValue];
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}
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- (void) setInteger: (int) value
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forKey: (NSString *) key
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{
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[self setObject: [NSString stringWithFormat: @"%d", value]
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forKey: key];
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}
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- (int) integerForKey: (NSString *) key
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{
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return [[self objectForKey: key] intValue];
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}
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#warning TODO: type checking
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- (NSArray *) arrayForKey: (NSString *) key
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{
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return [self objectForKey: key];
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}
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- (NSArray *) stringArrayForKey: (NSString *) key
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{
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return [self objectForKey: key];
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}
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- (NSData *) dataForKey: (NSString *) key
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{
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return [self objectForKey: key];
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}
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- (NSString *) stringForKey: (NSString *) key
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{
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return [self objectForKey: key];
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}
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/* Dictionaries are a special case for which we don't allow searches in the
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parent source. Each level can thus have its own set of dictionary values. */
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- (id) dictionaryForKey: (NSString *) objectKey
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{
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id objectForKey;
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objectForKey = [source objectForKey: objectKey];
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return objectForKey;
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}
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- (BOOL) migrate
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{
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return NO;
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}
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- (BOOL) migrateOldDefaultsWithDictionary: (NSDictionary *) migratedKeys
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{
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NSArray *allKeys;
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id currentValue, existingValue;
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NSString *oldName, *newName;
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int count, max;
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BOOL requireSync;
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requireSync = NO;
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allKeys = [migratedKeys allKeys];
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max = [allKeys count];
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for (count = 0; count < max; count++)
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{
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oldName = [allKeys objectAtIndex: count];
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currentValue = [source objectForKey: oldName];
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if (currentValue)
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{
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newName = [migratedKeys objectForKey: oldName];
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existingValue = [source objectForKey: newName];
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if (existingValue)
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[self errorWithFormat: @"both old and new defaults key"
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@" '%@' '%@' exist. Migration skipped.", oldName, newName];
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else
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{
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requireSync = YES;
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[source setObject: currentValue forKey: newName];
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[source removeObjectForKey: oldName];
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[self warnWithFormat: @"defaults key '%@' was renamed to '%@'",
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oldName, newName];
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}
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}
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}
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return requireSync;
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}
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- (BOOL) synchronize
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{
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BOOL rc;
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if ([source respondsToSelector: @selector (synchronize)])
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rc = [source synchronize];
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else
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{
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[self errorWithFormat: @"current source cannot synchronize defaults"];
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rc = NO;
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}
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return rc;
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}
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@end
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