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/*
** IMAPCacheManager.m
**
** Copyright (c) 2001, 2002
**
** Author: Ludovic Marcotte <ludovic@Sophos.ca>
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License as published by the Free Software Foundation; either
** version 2.1 of the License, or (at your option) any later version.
**
** This library is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public
** License along with this library; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#import <Pantomime/IMAPCacheManager.h>
#import <Pantomime/Constants.h>
#import <Pantomime/IMAPCacheObject.h>
static int currentVersion = 1;
@implementation IMAPCacheManager
- (id) init
{
self = [super init];
[IMAPCacheManager setVersion: currentVersion];
[self setUIDValidity: 0];
[self setIMAPCacheObjects: [NSArray array]];
return self;
}
- (id) initWithPath: (NSString *) thePath
{
self = [self init];
[self setPathToCache: thePath];
return self;
}
- (void) dealloc
{
RELEASE(imapCacheObjects);
[super dealloc];
}
- (BOOL) synchronize
{
return [NSArchiver archiveRootObject: self toFile: [self pathToCache]];
}
//
// NSCoding protocol
//
- (void) encodeWithCoder: (NSCoder *) theCoder
{
[IMAPCacheManager setVersion: currentVersion];
[theCoder encodeObject: [NSNumber numberWithInt: [self uidValidity]] ];
[theCoder encodeObject: [self imapCacheObjects]];
}
- (id) initWithCoder: (NSCoder *) theCoder
{
int version;
version = [theCoder versionForClassName: NSStringFromClass([self class])];
self = [super init];
// Initial version of the serialized filter object
if ( version == 0 )
{
[self setUIDValidity: [[theCoder decodeObject] intValue]];
// We ignore the previous cached objects
[self setIMAPCacheObjects: [NSArray array]];
}
// Version 1
else
{
[self setUIDValidity: [[theCoder decodeObject] intValue]];
[self setIMAPCacheObjects: [theCoder decodeObject]];
}
return self;
}
//
// access/mutation methods
//
- (void) addObject: (IMAPCacheObject *) theIMAPCacheObject
{
[imapCacheObjects addObject: theIMAPCacheObject];
}
- (void) removeObject: (IMAPCacheObject *) theIMAPCacheObject
{
[imapCacheObjects removeObject: theIMAPCacheObject];
}
- (IMAPCacheObject *) findIMAPCacheObject: (int) theUID
{
IMAPCacheObject *anObject;
int i;
for (i = 0; i < [[self imapCacheObjects] count]; i++)
{
anObject = [[self imapCacheObjects] objectAtIndex: i];
if ([anObject uid] == theUID)
{
return anObject;
}
}
return nil;
}
- (NSArray *) imapCacheObjects
{
return imapCacheObjects;
}
- (void) setIMAPCacheObjects: (NSArray *) theIMAPCacheObjects
{
if ( theIMAPCacheObjects )
{
NSMutableArray *newIMAPCacheObjects;
newIMAPCacheObjects = [[NSMutableArray alloc] initWithArray: theIMAPCacheObjects];
RELEASE(imapCacheObjects);
imapCacheObjects = newIMAPCacheObjects;
}
else
{
RELEASE(imapCacheObjects);
imapCacheObjects = nil;
}
}
- (NSString *) pathToCache
{
return pathToCache;
}
//
//
//
- (void) setPathToCache: (NSString *) thePathToCache
{
RETAIN(thePathToCache);
RELEASE(pathToCache);
pathToCache = thePathToCache;
}
//
//
//
- (int) uidValidity
{
return uidValidity;
}
//
//
//
- (void) setUIDValidity: (int) theUIDValidity
{
uidValidity = theUIDValidity;
}
//
//
//
- (void) flush
{
[imapCacheObjects removeAllObjects];
[self setUIDValidity: 0];
[self synchronize];
}
//
// class methods
//
+ (id) imapCacheObjectsFromDiskWithPath: (NSString *) thePath;
{
IMAPCacheManager *anIMAPCacheManager;
anIMAPCacheManager = [NSUnarchiver unarchiveObjectWithFile: thePath ];
if ( anIMAPCacheManager )
{
[anIMAPCacheManager setPathToCache: thePath];
}
else
{
anIMAPCacheManager = [[IMAPCacheManager alloc] initWithPath: thePath];
}
return anIMAPCacheManager;
}
@end
|
