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NSURLDownload - multiple requests not working
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NSURLDownload - multiple requests not working


  • Subject: NSURLDownload - multiple requests not working
  • From: Dalton Hamilton <email@hidden>
  • Date: Sun, 19 Aug 2007 11:18:07 -0400

I can download a single URL but if I try to "harvest" all urls out of that page and then download all of those, I never receive a CALLBACK for those called from my scanResults method below.

I receive a callback from the first (i.e. main URL) and the page is downloaded fine.  I pass the filename to a seperate thread (scanResults) which opens the file and tries to download every url in that page.  Again, I don't get a callback.  Any ideas why???  THANKS.

- (void)downloadDidFinish:(NSURLDownload *)download
{
NSEnumerator *e;
id object;


e=[urlArray objectEnumerator];
while ( object = [e nextObject] ) 
{    
    if([object objectForKey:@"nsurldownload"] == download)
{
    [NSThread detachNewThreadSelector:@selector(scanResults:) toTarget:self withObject:[object objectForKey:@"filename"]];
}
}
    [download release];
}
-(IBAction)scanResults:(id)sender
{   
NSString *aRow;
NSString                                        *fileContents;
NSArray                                         *rowArray;
NSArray                                         *rowComponents;
NSString *pageFile;

fileContents = [NSString stringWithContentsOfFile:sender];
rowArray = [fileContents componentsSeparatedByString:@"\n"];
int i,rowCount = [rowArray count]; 
for(i=0;i<rowCount;i++)
{
aRow = [rowArray objectAtIndex:i];
rowComponents = [aRow componentsSeparatedByString:@"http://"];


NSString *tmpString = [NSString stringWithString:@"\""];
NSArray  *parseArray = [[rowComponents objectAtIndex:1] componentsSeparatedByString:tmpString];


NSURLRequest *theRequest=[NSURLRequest requestWithURL:[NSURL URLWithString:[parseArray objectAtIndex:0]]
  cachePolicy:NSURLRequestUseProtocolCachePolicy
  timeoutInterval:10.0];
NSURLDownload  *theDownload=[[NSURLDownload alloc] initWithRequest:theRequest  delegate:self];
if (theDownload) 
{
pageFile = [[NSString alloc] initWithFormat:@"%@/%f",ironWebDir,[[NSDate date] timeIntervalSinceReferenceDate]];
[theDownload setDestination:pageFile     allowOverwrite:YES];
NSMutableDictionary         *record = [NSMutableDictionary dictionary];
[record setObject:theDownload forKey:@"nsurldownload"];
[record setObject:[parseArray objectAtIndex:0] forKey:@"url"];
[record setObject:pageFile forKey:@"filename"];
[urlArray addObject:record];
[downloadHistoryTV reloadData];
}
}
}

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