Convert Object C function to Swift 3 and test with data

I need the Objective C function below converted to Swift for for iOS or OSX. Would prefer OSX. I'll provide the two csv files for testing. Don't need anything fancy to test a simple form and this function called. - (NSArray *) getMaterials; - (NSArray *) getLockingAssemblies; @synthesize materials; @synthesize lockingAssembly; - (void) initFromCsvs { // materials NSString *filePath = [[NSBundle mainBundle] pathForResource:@"Material" ofType:@"csv"]; NSString *content = [NSString stringWithContentsOfFile:filePath encoding:NSUTF8StringEncoding error:nil]; NSArray *contentArray = [content componentsSeparatedByString:@"\r"]; NSMutableArray *workCopy = [[NSMutableArray alloc] init]; for (NSString *item in contentArray) { NSRange filter1 = [item rangeOfString:@"Perth"]; if ([login to view URL] == NSNotFound) { continue; } NSRange filter2 = [item rangeOfString:@"EndDisk"]; if ([login to view URL] == NSNotFound) { continue; } [workCopy addObject:item]; } materials = [[NSArray alloc] initWithArray:workCopy]; // NSLog(@"materials count %lu", (unsigned long)[materials count]); // lockingAssembly NSString *filePath2 = [[NSBundle mainBundle] pathForResource:@"LockingElements" ofType:@"csv"]; NSString *content2 = [NSString stringWithContentsOfFile:filePath2 encoding:NSUTF8StringEncoding error:nil]; NSArray *contentArray2 = [content2 componentsSeparatedByString:@"\r"]; NSMutableArray *workCopy2 = [[NSMutableArray alloc] init]; for (NSString *item in contentArray2) { NSRange filter1 = [item rangeOfString:@"LockingAssemblyID,PartNumber"]; // header out if ([login to view URL] != NSNotFound) { continue; } [workCopy2 addObject:item]; } lockingAssembly = [[NSArray alloc] initWithArray:workCopy2]; // NSLog(@"lockingAssembly count %lu", (unsigned long)[lockingAssembly count]); }