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AtomParser.m
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AtomParser.m
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//
// AtomParser.m
//
// Created by Mike Mayo on 1/28/10.
// Copyright Mike Mayo 2010. All rights reserved.
//
#import "AtomParser.h"
#import "FeedItem.h"
@implementation AtomParser
@synthesize feedItem, currentDataType, feedItems;
#pragma mark -
#pragma mark Date Parser
-(NSDate *)dateFromString:(NSString *)dateString {
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setLocale:[[[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"] autorelease]];
[dateFormatter setDateFormat:@"yyyy-MM-dd'T'H:mm:sszzzz"];
NSDate *date = [dateFormatter dateFromString:dateString];
[dateFormatter release];
return date;
}
#pragma mark -
#pragma mark XML Parser Delegate Methods
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict {
if ([elementName isEqualToString:@"feed"]) {
// we're getting started, so go ahead and alloc the array
self.feedItems = [[NSMutableArray alloc] initWithCapacity:1];
} else if ([elementName isEqualToString:@"entry"]) {
self.feedItem = [[FeedItem alloc] init];
parsingItem = YES;
} else if ([elementName isEqualToString:@"content"]) {
self.feedItem.content = @"";
parsingContent = YES;
}
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName {
if ([elementName isEqualToString:@"entry"]) {
[self.feedItems addObject:self.feedItem];
parsingItem = NO;
} else if ([elementName isEqualToString:@"title"]) {
feedItem.title = [currentElementValue stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
// } else if ([elementName isEqualToString:@"link"]) {
// feedItem.link = [currentElementValue stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
} else if ([elementName isEqualToString:@"id"]) {
feedItem.guid = [currentElementValue stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
} else if ([elementName isEqualToString:@"summary"]) {
feedItem.description = [currentElementValue stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
} else if ([elementName isEqualToString:@"content"]) {
//feedItem.content = [currentElementValue stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
parsingContent = NO;
} else if ([elementName isEqualToString:@"name"]) {
feedItem.creator = [currentElementValue stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
} else if ([elementName isEqualToString:@"published"]) {
feedItem.pubDate = [self dateFromString:[currentElementValue stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]];
}
if (parsingContent) {
if ([elementName isEqualToString:@"div"]) {
// the div is just a wrapper for the rackcloud status item
} else if ([elementName isEqualToString:@"p"]) {
NSString *newLine = [currentElementValue stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
feedItem.content = [feedItem.content stringByReplacingOccurrencesOfString:@"\n" withString:@" "];
feedItem.content = [feedItem.content stringByReplacingOccurrencesOfString:@"\r" withString:@""];
feedItem.content = [feedItem.content stringByAppendingString:[NSString stringWithFormat:@"\n\n%@", newLine]];
}
}
if ([feedItem.content length] > 0 && [feedItem.content characterAtIndex:0] == ' ') {
feedItem.content = [feedItem.content substringFromIndex:1];
}
[currentElementValue release];
currentElementValue = nil;
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {
if (!currentElementValue) {
currentElementValue = [[NSMutableString alloc] initWithString:string];
} else {
[currentElementValue appendString:string];
}
}
#pragma mark -
#pragma mark Memory Management
- (void)dealloc {
[feedItem release];
[currentDataType release];
[feedItems release];
[super dealloc];
}
@end