Best Way to Parse XML Asynchronously

[BrendanF]

I am currently updating my app so that it utilizes the tools in the current SDK and I was wondering if there was a better way to asynchronously parse xml than this way:

NSOperation queue is a property in fileA.h

fileA.m

queue = [[NSOperationQueue alloc] init];
RequestOperation *request = [[RequestOperation alloc] initWithRequestString:requestString];
[queue addOperation:request];
[request release];


RequestOperation.m

- (id)initWithRequestString:(NSString *)str
{
	if( ![super init] ) 
		return nil;
	
	self.requestString = str;
	return self;
}

- (void) main
{
        NSURL *url = [NSURL URLWithString:requestString];
	NSData *dataXml = [[NSData alloc] initWithContentsOfURL:url];
	NSXMLParser *xmlParser = [[NSXMLParser alloc] initWithData:dataXml];
	[dataXml release];	
        
        ......

        [fileA performSelectorOnMainThree:@selector(startParsing:) withObject:xmlParser waitUntilDone:YES];

        [xmlParser release];


}

- (void) dealloc {
    [requestString release];
    [super dealloc];

}

This isn't all the code, but it shows the general form of how I was parsing xml before. The call to startParsing in fileA begins parsing the document using parserDidStart, parserFoundCharacters, parserDidStartElm etc.

[smithdale87]

It seems like all you are trying to do is download the file, and then do the parsing on the main thread.

You should look at NSURLConnection (or ASIHttpRequest, a good wrapper).

[BrendanF]

Originally Posted by smithdale87

It seems like all you are trying to do is download the file, and then do the parsing on the main thread.

You should look at NSURLConnection (or ASIHttpRequest, a good wrapper).

If I were to do the parsing in RequestOperation.m, would this make the parsing separate from the main thread?