Loading a CSV file and reading lines

load-csv-pose-sample.swift

private func loadPoseSamples() {
        var poseSamples: [PoseSample] = []
        var text: String
        do {
            if let path = Bundle.main.path(forResource: Self.POSE_SAMPLES_FILE, ofType: Self.POSE_SAMPLES_FILE_EXT) {
                text = try String(contentsOfFile: path, encoding: String.Encoding.utf8)
            } else {
                print(TAG, "Could not find file.")
                return
            }
        } catch {
            print(TAG, "Error when loading pose samples.")
            return
        }
        
        let lines: [String] = text
            .split(separator: "\r\n", omittingEmptySubsequences: true)
            .map(String.init)
        
        for csvLine in lines {
            // If line is not a valid {@link PoseSample}, we'll get null and skip adding to the list.
            let poseSample: PoseSample? = PoseSample.getPoseSample(csvLine, seperator: ",")
            if let poseSample = poseSample {
                poseSamples.append(poseSample)
            }
        }
        poseClassifier = PoseClassifier(poseSamples)
        
        if isStreamMode {
            for className in Self.POSE_CLASSES {
                repCounters.append(RepetitionCounter(className: className))
            }
        }
    }