CocoaLumberjack/Integration/Sources/Formatter.swift

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//
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// All rights reserved.
//
// Redistribution and use of this software in source and binary forms,
// with or without modification, are permitted provided that the following conditions are met:
//
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import Foundation
import CocoaLumberjackSwift

final class Formatter: DDDispatchQueueLogFormatter {
    let threadUnsafeDateFormatter: DateFormatter

    override init() {
        threadUnsafeDateFormatter = DateFormatter()
        threadUnsafeDateFormatter.formatterBehavior = .behavior10_4
        threadUnsafeDateFormatter.dateFormat = "HH:mm:ss.SSS"

        super.init()
    }

    override func format(message logMessage: DDLogMessage) -> String {
        let dateAndTime = threadUnsafeDateFormatter.string(from: logMessage.timestamp)

        let logLevel: String
        let logFlag = logMessage.flag
        if logFlag.contains(.error) {
            logLevel = "E"
        } else if logFlag.contains(.warning) {
            logLevel = "W"
        } else if logFlag.contains(.info) {
            logLevel = "I"
        } else if logFlag.contains(.debug) {
            logLevel = "D"
        } else if logFlag.contains(.verbose) {
            logLevel = "V"
        } else {
            logLevel = "?"
        }

        return "\(dateAndTime) |\(logLevel)| [\(logMessage.fileName) \(logMessage.function ?? "nil")] #\(logMessage.line): \(logMessage.message)"
    }
}