How to parse an XML file, grabbing data from specific elements - objective-c

Question

so I have an XML file with data from a lot of instances of an object. I'm parsing this file, but only want the data with the element tag "Content"
I am using NSXMLParser, so I have the methods parserDidStartDocument, didStartElement, foundCharacters, and didEndElement
So here is my current implementation
In Header:
#property (strong) NSMutableArray* AssetJSONObjects;
In Implementation:
boo
l grabContent = NO;
- (void) parserDidStartDocument:(NSXMLParser *)parser {
NSLog(#"parserDidStartDocument");
self.AssetJSONObjects = [NSMutableArray new];
}
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict {
NSLog(#"didStartElement --> %#", elementName);
if([elementName isEqual:#"Content"])
{
grabContent = YES;
}
}
-(void) parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {
NSLog(#"foundCharacters --> %#", string);
if(grabContent)
{
[self.AssetJSONObjects addObject:string];
}
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName {
NSLog(#"didEndElement --> %#", elementName);
if(grabContent)
{
grabContent = NO;
}
}
- (void) parserDidEndDocument:(NSXMLParser *)parser {
NSLog(#"parserDidEndDocument");
}
So here is my question: is the way that I'm declaring/initializing my array, AssetJSONObjects legitimate? Is the way I'm initializing my bool grabContent legitimate? Is there a better way to grab data from specific tags?

Answer 1

Went the cheap route, just kept track of a global boolean and set it if the tag was found
relevant code:
BOOL grabContent = NO;
- (void) parserDidStartDocument:(NSXMLParser *)parser {
self.AssetJSONObjects = [NSMutableArray new];
}
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict {
if([elementName isEqual:#"Content"])
{
grabContent = YES;
}
}
-(void) parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {
if(grabContent)
{
NSDictionary *JSONObject =
[NSJSONSerialization JSONObjectWithData: [string dataUsingEncoding:NSUTF8StringEncoding]
options: NSJSONReadingMutableContainers
error: nil];
if (JSONObject)
{
[self.AssetJSONObjects addObject:JSONObject];
}
}
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName {
if(grabContent)
{
grabContent = NO;
}
}
- (void) parserDidEndDocument:(NSXMLParser *)parser {
self.notifications = [self convertRawJSONToNotifications:self.AssetJSONObjects];
if(self.notifications != nil)
{
self.notificationCompletionHandler(self.notifications, self.numNewNotifications);
}
}