Monotone-Parent: e74038b8c915f22e294a5efbc419eef439f81d21 Monotone-Revision: 333349da689a5bd3ef8d70e672d7b0c0d29497a2 Monotone-Author: ludovic@Sophos.ca Monotone-Date: 2008-11-11T02:08:03 Monotone-Branch: ca.inverse.sogo
278 lines
6.9 KiB
Objective-C
278 lines
6.9 KiB
Objective-C
/* SOGoCache.m - this file is part of SOGo
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*
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* Copyright (C) 2008 Inverse inc.
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*
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* Author: Wolfgang Sourdeau <wsourdeau@inverse.ca>
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* Ludovic Marcotte <lmarcotte@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/NSDistributedNotificationCenter.h>
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#import <Foundation/NSEnumerator.h>
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#import <Foundation/NSString.h>
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#import <Foundation/NSTimer.h>
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#import <Foundation/NSUserDefaults.h>
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#import <NGObjWeb/SoObject.h>
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#import <NGExtensions/NSObject+Logs.h>
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#import "SOGoObject.h"
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#import "SOGoUser.h"
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#import "SOGoCache.h"
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// We define the default value for cleaning up cached
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// users' preferences. This value should be relatively
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// high to avoid useless database calls.
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static NSTimeInterval cleanupInterval = 1800;
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static NSMutableDictionary *cache = nil;
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static NSMutableDictionary *users = nil;
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static SOGoCache *sharedCache = nil;
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@implementation SOGoCache
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+ (NSTimeInterval) cleanupInterval
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{
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return cleanupInterval;
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}
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+ (SOGoCache *) sharedCache
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{
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if (!sharedCache)
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sharedCache = [self new];
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return sharedCache;
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}
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+ (void) killCache
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{
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[cache removeAllObjects];
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[users removeAllObjects];
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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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NSString *cleanupSetting;
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cache = [NSMutableDictionary new];
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users = [NSMutableDictionary new];
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// We register ourself for notifications
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#if 0
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[[NSDistributedNotificationCenter defaultCenter]
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addObserver: self
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selector: @selector(_userDefaultsHaveChanged:)
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name: @"SOGoUserDefaultsHaveChanged"
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object: nil];
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[[NSDistributedNotificationCenter defaultCenter]
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addObserver: self
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selector: @selector(_userSettingsHaveChanged:)
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name: @"SOGoUserSettingsHaveChanged"
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object: nil];
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#endif
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// We fire our timer that will cleanup cache entries
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cleanupSetting = [[NSUserDefaults standardUserDefaults]
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objectForKey: @"SOGoCacheCleanupInterval"];
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if (cleanupSetting && [cleanupSetting doubleValue] > 0.0)
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cleanupInterval = [cleanupSetting doubleValue];
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_cleanupTimer = [NSTimer scheduledTimerWithTimeInterval: cleanupInterval
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target: self
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selector: @selector(_cleanupSources)
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userInfo: nil
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repeats: YES];
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[self logWithFormat: @"cleanup interval set every %f seconds",
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cleanupInterval];
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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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[[NSDistributedNotificationCenter defaultCenter]
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removeObserver: self
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name: @"SOGoUserDefaultsHaveChanged"
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object: nil];
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[[NSDistributedNotificationCenter defaultCenter]
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removeObserver: self
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name: @"SOGoUserSettingsHaveChanged"
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object: nil];
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[cache release];
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[users release];
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[super dealloc];
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}
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- (NSString *) _pathFromObject: (SOGoObject *) container
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withName: (NSString *) name
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{
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NSString *fullPath, *nameInContainer;
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NSMutableArray *names;
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id currentObject;
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names = [NSMutableArray new];
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[names addObject: name];
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currentObject = container;
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while ((nameInContainer = [currentObject nameInContainer]))
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{
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[names addObject: nameInContainer];
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currentObject = [currentObject container];
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}
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fullPath = [names componentsJoinedByString: @"/"];
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[names release];
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return fullPath;
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}
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- (void) registerObject: (id) object
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withName: (NSString *) name
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inContainer: (SOGoObject *) container
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{
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NSString *fullPath;
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if (object && name)
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{
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[self registerObject: container
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withName: [container nameInContainer]
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inContainer: [container container]];
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fullPath = [self _pathFromObject: container
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withName: name];
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if (![cache objectForKey: fullPath])
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{
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// NSLog (@"registering '%@'", fullPath);
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[cache setObject: object forKey: fullPath];
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}
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// else
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// NSLog (@"'%@' already registered", fullPath);
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}
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}
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- (id) objectNamed: (NSString *) name
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inContainer: (SOGoObject *) container
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{
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NSString *fullPath;
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fullPath = [self _pathFromObject: container
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withName: name];
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return [cache objectForKey: fullPath];
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// if (object)
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// NSLog (@"found cached object '%@'", fullPath);
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}
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- (void) registerUser: (SOGoUser *) user
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{
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[users setObject: user
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forKey: [user login]];
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}
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- (id) userNamed: (NSString *) name
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{
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return [users objectForKey: name];
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}
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- (void) _userDefaultsHaveChanged: (NSNotification *) theNotification
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{
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NSMutableDictionary *d;
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NSString *user;
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d = [[NSMutableDictionary alloc] init];
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[d addEntriesFromDictionary: [theNotification userInfo]];
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user = [d objectForKey: @"uid"];
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[d removeObjectForKey: @"uid"];
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[SOGoUser setUserDefaultsFromDictionary: d user: user];
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[d release];
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}
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- (void) _userSettingsHaveChanged: (NSNotification *) theNotification
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{
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NSMutableDictionary *d;
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NSString *user;
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d = [[NSMutableDictionary alloc] init];
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[d addEntriesFromDictionary: [theNotification userInfo]];
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user = [d objectForKey: @"uid"];
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[d removeObjectForKey: @"uid"];
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[SOGoUser setUserSettingsFromDictionary: d user: user];
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[d release];
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}
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- (void) _cleanupSources
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{
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NSDictionary *currentEntry;
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NSEnumerator *userIDs;
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NSString *currentID;
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NSDate *now;
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unsigned int count;
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now = [NSDate date];
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// We cleanup the user defaults
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userIDs = [[[SOGoUser userDefaultsCache] allKeys] objectEnumerator];
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count = 0;
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while ((currentID = [userIDs nextObject]))
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{
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currentEntry = [[SOGoUser userDefaultsCache] objectForKey: currentID];
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if ([now earlierDate: [currentEntry objectForKey: @"cleanupDate"]] == now)
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{
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[SOGoUser setUserDefaultsFromDictionary: nil user: currentID];
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count++;
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}
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}
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if (count)
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[self logWithFormat: @"cleaned %d users records from user defaults cache", count];
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// We cleanup the user settings
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userIDs = [[[SOGoUser userSettingsCache] allKeys] objectEnumerator];
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count = 0;
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while ((currentID = [userIDs nextObject]))
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{
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currentEntry = [[SOGoUser userSettingsCache] objectForKey: currentID];
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if ([now earlierDate: [currentEntry objectForKey: @"cleanupDate"]] == now)
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{
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[SOGoUser setUserDefaultsFromDictionary: nil user: currentID];
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count++;
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}
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}
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if (count)
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[self logWithFormat: @"cleaned %d users records from user settings cache", count];
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}
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@end
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