YH_DNSMemoryCache.m
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//
// YH_DNSMemoryCache.m
// YH_Mall
//
// Created by jhsonzhi on 16/7/18.
// Copyright © 2016年 YOHO. All rights reserved.
//
#import "YH_DNSMemoryCache.h"
#import "YH_DNSDomainModel.h"
#import "YH_DNSIpModel.h"
#import "YH_DNSUtils.h"
@interface YH_DNSMemoryCache ()
@property (strong, nonatomic) NSMutableDictionary *memoryDic;
@end
@implementation YH_DNSMemoryCache
+ (instancetype)sharedInstance {
static YH_DNSMemoryCache* sharedInstance;
static dispatch_once_t predicate;
dispatch_once(&predicate, ^{
sharedInstance = [[YH_DNSMemoryCache alloc]init];
});
return sharedInstance;
}
- (instancetype)init{
if (self = [super init]) {
}
return self;
}
-(NSMutableDictionary *)memoryDic{
if (!_memoryDic) {
_memoryDic = [[NSMutableDictionary alloc] init];
}
return _memoryDic;
}
- (YH_DNSDomainModel *)getModelByKeyUrl:(NSString *)keyUrl {
@synchronized(self) {
return self.memoryDic[keyUrl];
}
}
- (void)removeAllModels {
@synchronized(self) {
[self.memoryDic removeAllObjects];
}
}
- (NSArray *)getAllModels {
@synchronized(self) {
return [self.memoryDic allValues];
}
}
- (void)addModel:(YH_DNSDomainModel *)model keyHost:(NSString *)hostName {
@synchronized(self) {
YH_DNSDomainModel* existModel = self.memoryDic[hostName];
if (existModel) {
[self.memoryDic removeObjectForKey:hostName];
}
[self.memoryDic setObject:model forKey:hostName];
}
}
//本函数只用于更新从本地dns获取的ip， 从httpserver 获取的ip 不应该用此函数更新。
//- (void)updateModel:(YH_DNSDomainModel *)model keyHost:(NSString *)hostName
//{
// if (YHDNS_isStrEmpty(hostName)) {
// return;
// }
//
// @synchronized(self) {
// YH_DNSDomainModel* existModel = self.memoryDic[hostName];
// if (existModel) {
// existModel.domain = model.domain;
// existModel.ttl = model.ttl;
// existModel.time = model.time;
//
// NSMutableArray *newIpArray= [NSMutableArray array];
//
// //更新在新老Model里的ip，不更新测速数据；。删除存在着老model里的，但是不在新Model里的ip。
// for (YH_DNSIpModel *ipModel in existModel.ipModelArray) {
// YH_DNSIpModel *newIpModel = [self findIp:ipModel.ip inIPArray:model.ipModelArray];
// if (newIpModel) {
// ipModel.domainID = newIpModel.domainID;
// ipModel.ttl = newIpModel.ttl;
// ipModel.finally_update_time = newIpModel.finally_update_time;
// [newIpArray addObject:ipModel];
// }
// }
//
// //把新Model里存在 但不再老model里的ip 加进来。
// for (YH_DNSIpModel *ipModel in model.ipModelArray) {
// YH_DNSIpModel *newIpModel = [self findIp:ipModel.ip inIPArray:newIpArray];
// if (newIpModel == nil) {
// [newIpArray addObject:ipModel];
// }
// }
//
// existModel.ipModelArray = newIpArray;
// }
// else {
// [self.memoryDic setObject:model forKey:hostName];
// }
// }
//}
- (YH_DNSIpModel *)findIp:(NSString *)ip inIPArray:(NSArray *)ipArray
{
for (YH_DNSIpModel* ipModel in ipArray) {
if ([ipModel.ip isEqualToString:ip]) {
return ipModel;
}
}
return nil;
}
- (NSArray *)getExpireDnsCache
{
@synchronized(self) {
NSMutableArray *domainList = [NSMutableArray array];
for (YH_DNSDomainModel *tempModel in [self.memoryDic allValues]) {
if ([YH_DNSUtils isDomainModelExpired:tempModel]) {
[domainList addObject:tempModel];
}
}
return domainList;
}
}
@end