DLLogging

An abstract Logging Framework supports:

• Unified Logging.
• Modularize, Centralize Logging.
• Plugin the new logging easier.
• Fully customize format logging’s message.
• Built-in Loggings
  • Console Logging
    • PrintLogging: Swift’s print.
    • PrintDebugLogging: Swift’s debugPrint.
  • File Logging
    • Write the log message to file.
    • It flushes the content as Data with a UTF-8 encoding and call back to client for process each configured TimeInterval and clear content.

Log Level supports

1. 🗣 Verbose: A verbose message, usually useful when working on a specific problem.
2. 🔍 Debug: A debug message that may be useful to a developer.
3. ℹ️ Info: An info message that highlight the progress of the application at coarse-grained level.
4. ⚠️ Warning: A warning message, may indicate a possible error.
5. ❗️ Error: An error occurred, but it’s recoverable, just info about what happened.
6. 🛑 Severe: A server error occurred.

Requirements

• Xcode 11+
• Swift 5.0+

How

Setup

1. Use Framework’s default setup.

import UIKit
import DLLogging

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        /// Setup Logging
        LoggerManager.sharedInstance.initialize()
        return true
    }
}

1. Use supported Loggings.

import UIKit
import DLLogging

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        /// Setup Logging
        let logFormatter = LogFormatterImpl()
        LoggerManager.sharedInstance.addLogging(LoggerFactoryImpl.makeConsoleLogging(logFormatter: logFormatter))
        LoggerManager.sharedInstance.addLogging(LoggerFactoryImpl.makeFileLogging(fileName: "logs"))
        /// Disable LogLevels. Enable all LogLevels by default
        LoggerManager.sharedInstance.disableLogLevels([LogLevel.info, LogLevel.error])

        return true
    }
}

1. Add your custom Logging.

import UIKit
import DLLogging

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        /// Setup Logging
        let logFormatter = LogFormatterImpl()
        let testLogging = TestLogging(logFormatter: logFormatter)
        LoggerManager.sharedInstance.addLogging(testLogging)
        return true
    }
}

/// Your custom Logging.
final class TestLogging: BaseLogging {
    let logger = OSLog.init(subsystem: "com.domain.loggingdemo", category: "main")  
    override func receiveMessage(_ message: LogMessage) {
        if let formattedMessage = logFormatter?.formatMessage(message) {
            os_log("%@", log: logger, type: OSLogType.debug, formattedMessage)
        } else {
            os_log("Your message %@", message.text)
        }
    }
}

1. Add your custom Formatter.

import UIKit
import DLLogging

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        /// Setup Logging
        let logFormatter = CustomLoggingFormatter()
        let testLogging = LoggerFactoryImpl.makeConsoleLogging(logFormatter: logFormatter)
        LoggerManager.sharedInstance.addLogging(testLogging)
        return true
    }
}

/// Your custom Formatter
final class CustomLoggingFormatter: LogFormatter {
    func formatMessage(_ message: LogMessage) -> String {
        return "[\(message.level.symbol)][\(message.function)] -> \(message.text)"
    }
}

Use

/// Invoke
Log.info(message: "info")
Log.debug(message: "debug")
Log.verbose(message: "verbose")
Log.warning(message: "warning")
Log.error(message: "error")
Log.severe(message: "severe")

/// Output
2020-07-16T18:50:09.254+0700 [ℹ️][ViewController.swift:18:viewDidLoad()] -> info
2020-07-16T18:50:09.256+0700 [🔍][ViewController.swift:19:viewDidLoad()] -> debug
2020-07-16T18:50:09.256+0700 [🗣][ViewController.swift:20:viewDidLoad()] -> verbose
2020-07-16T18:50:09.257+0700 [⚠️][ViewController.swift:21:viewDidLoad()] -> warning
2020-07-16T18:50:09.257+0700 [❗️][ViewController.swift:22:viewDidLoad()] -> error
2020-07-16T18:50:09.257+0700 [🛑][ViewController.swift:23:viewDidLoad()] -> severe

Installation

There are three ways to install DLLogging

CocoaPods

Just add to your project’s Podfile:

pod 'DLLogging', '~> 1.2'

Carthage

Add following to Cartfile:

github "lengocduy/DLLogging" ~> 1.2

• To building platform-independent xcframeworks xcode12 and above here
• To migrating from framework bundles to xcframework here

Swift Package Manager

Create a Package.swift file:

// swift-tools-version:5.0

import PackageDescription

let package = Package(
        name: "TestLogging",

        dependencies: [
            .package(url: "https://github.com/lengocduy/DLLogging.git", from: "1.2.0"),
        ],

        targets: [
            .target(
                    name: "TestLogging",
                    dependencies: ["DLLogging"])
        ]
)

Architecture

Interaction Flow

License

DLLogging is available under the MIT license. See the LICENSE file for more info.