Find sub key in NSDictionary - ios

Question

I have a large NSDictionary. Fx.
"m:GetFolderResponse" = {
"m:ResponseMessages" = {
"m:GetFolderResponseMessage" = {
ResponseClass = Success;
"m:Folders" = {
"t:CalendarFolder" = {
"t:ChildFolderCount" = {
text = 0;
};
"t:DisplayName" = {
text = Calendar;
};
"t:FolderId" = {
ChangeKey = "AgAAABYAAABGewbOYWpKSrW/k23iIoFkAPJWd7/8";
Id = "AAMkADkwOWE2NjEyLTMwZWQtNGYyMy05OGQ1LWZjZjFkZGY5MTBhMAAuAAAAAAC1cjo8jkv5SKjQt5WaSmd1AQBGewbOYWpKSrW/k23iIoFkAPJWc0NrAAA=";
};
};
};
"m:ResponseCode" = {
text = NoError;
};
};
};
"xmlns:m" = "http://schemas.microsoft.com/exchange/services/2006/messages";
"xmlns:t" = "http://schemas.microsoft.com/exchange/services/2006/types";
};
}
As you might have guessed, there can be multiple in the m:Folders. Therefore I would like to find m:Folders child, where t:DisplayName is equal to a variable value. How can I do this?

Answer 1

- (void)filterMutableDictionary:(NSDictionary*)aDictionary andKeyName:(NSString *)keyName
{
if ([keyName isEqualToString:#"t:CalendarFolder"]) {
if ([[[aDictionary objectForKey:#"t:DisplayName"] objectForKey:#"text"] isEqualToString:searchCalendarName]) {
NSDictionary *temp = [aDictionary objectForKey:#"t:FolderId"];
CalID = [temp objectForKey:#"Id"];
CalChangeID = [temp objectForKey:#"ChangeKey"];
}
}
// enumerate key/values, filtering appropriately, recursing as necessary
NSLog(#"%#",aDictionary);
[aDictionary enumerateKeysAndObjectsUsingBlock:^(id key, id value, BOOL *stop) {
if ([value isKindOfClass: [NSMutableDictionary class]] || [value isKindOfClass: [NSDictionary class]]) {
[self filterMutableDictionary: value andKeyName:key];
}
}];
}