NetNewsWire/Frameworks/RSParser/Feeds/XML/RSParsedArticle.m

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//
// RSParsedArticle.m
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// RSParser
//
// Created by Brent Simmons on 12/6/14.
// Copyright (c) 2014 Ranchero Software LLC. All rights reserved.
//
#import "RSParsedArticle.h"
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#import "RSParserInternal.h"
#import "NSString+RSParser.h"
@implementation RSParsedArticle
#pragma mark - Init
- (instancetype)initWithFeedURL:(NSString *)feedURL {
NSParameterAssert(feedURL != nil);
self = [super init];
if (!self) {
return nil;
}
_feedURL = feedURL;
_dateParsed = [NSDate date];
return self;
}
#pragma mark - Accessors
- (NSString *)articleID {
if (!_articleID) {
_articleID = self.calculatedUniqueID;
}
return _articleID;
}
- (NSString *)calculatedUniqueID {
/*guid+feedID, or a combination of properties when no guid. Then hash the result.
In general, feeds should have guids. When they don't, re-runs are very likely,
because there's no other 100% reliable way to determine identity.*/
NSMutableString *s = [NSMutableString stringWithString:@""];
NSString *datePublishedTimeStampString = nil;
if (self.datePublished) {
datePublishedTimeStampString = [NSString stringWithFormat:@"%.0f", self.datePublished.timeIntervalSince1970];
}
if (!RSParserStringIsEmpty(self.guid)) {
[s appendString:self.guid];
}
else if (!RSParserStringIsEmpty(self.link) && self.datePublished != nil) {
[s appendString:self.link];
[s appendString:datePublishedTimeStampString];
}
else if (!RSParserStringIsEmpty(self.title) && self.datePublished != nil) {
[s appendString:self.title];
[s appendString:datePublishedTimeStampString];
}
else if (self.datePublished != nil) {
[s appendString:datePublishedTimeStampString];
}
else if (!RSParserStringIsEmpty(self.link)) {
[s appendString:self.link];
}
else if (!RSParserStringIsEmpty(self.title)) {
[s appendString:self.title];
}
else if (!RSParserStringIsEmpty(self.body)) {
[s appendString:self.body];
}
NSAssert(!RSParserStringIsEmpty(self.feedURL), nil);
[s appendString:self.feedURL];
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return [s rsparser_md5Hash];
}
- (void)calculateArticleID {
(void)self.articleID;
}
@end