log4k alternatives and similar libraries
Based on the "Misc" category.
Alternatively, view log4k alternatives based on common mentions on social networks and blogs.
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jclasslib
jclasslib bytecode viewer is a tool that visualizes all aspects of compiled Java class files and the contained bytecode. -
kotlin-logging
Lightweight logging framework for Kotlin. Used as a wrapper for slf4j with Kotlin extensions. -
klock
Consistent and portable date and time utilities for multiplatform kotlin (JVM, JS and Common). -
Humanizer.jvm
Humanizer.jvm meets all your jvm needs for manipulating and displaying strings, enums, dates, times, timespans, numbers and quantities. -
actions-on-google-kotlin
Port of official Node.js SDK to Kotlin. Complete with all features and tests and nearly identical API. -
klutter
A mix of random small libraries for Kotlin, the smallest reside here until big enough for their own repository. -
SimpleDNN
SimpleDNN is a machine learning lightweight open-source library part of KotlinNLP and has been designed to support relevant neural network architectures in natural language processing tasks. -
kassava
This library provides some useful kotlin extension functions for implementing toString() and equals() without all of the boilerplate. -
kotlin-futures
A collections of extension functions to make the JVM Future, CompletableFuture, ListenableFuture API more functional and Kotlin like. -
kasechange
Multiplatform Kotlin library to convert strings between various case formats including Camel Case, Snake Case, Pascal Case and Kebab Case -
PrimeCalendar
Provides all of the java.util.Calendar functionalities for Civil, Persian, Hijri, Japanese, etc, as well as their conversion to each other.
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README
Log4K
Lightweight logging library for Kotlin/Multiplatform. Supports Android, iOS, JavaScript and plain JVM environments.
Download
implementation("saschpe.log4k:log4k:1.0.0")
Usage
Logging messages is straightforward, the Log object provides the usual functions you'd expect:
Log.verbose("FYI")
Log.debug("Debugging ${foo.bar}")
Log.info("Nice to know")
Log.warn("Warning about $stuff ...")
Log.error("Oops!")
Log.assert("Something went wrong!", throwable)
The log output includes the function name and line and pretty-prints exceptions on all supported platforms:
I/Application.onCreate: Log4K rocks!
Configuration (Android example)
To only output messages with log-level info and above, you can configure the console logger in your Application class:
class MyApplication : Application() {
override fun onCreate() {
super.onCreate()
Log.loggers.add(ConsoleLogger().apply {
if (!BuildConfig.DEBUG) {
minimumLogLevel = Log.Level.Info
}
})
}
}
Custom logger (Android Crashlytics example)
The library provides a cross-platform ConsoleLogger
by default. Custom
loggers can easily be added. For instance, to send only ERROR
and ASSERT
messages to Crashlytics in production builds, you could do the following:
class MyApplication : Application() {
override fun onCreate() {
super.onCreate()
Log.loggers += when {
BuildConfig.DEBUG -> ConsoleLogger()
else -> CrashlyticsLogger()
}
}
private class CrashlyticsLogger : Logger() {
override fun print(level: Log.Level, tag: String, message: String?, throwable: Throwable?) {
val priority = when (level) {
Log.Level.Verbose -> VERBOSE
Log.Level.Debug -> DEBUG
Log.Level.Info -> INFO
Log.Level.Warning -> WARN
Log.Level.Error -> ERROR
Log.Level.Assert -> ASSERT
}
if (priority >= ERROR) {
FirebaseCrashlytics.getInstance().log("$priority $tag $message")
throwable?.let { FirebaseCrashlytics.getInstance().recordException(it) }
}
}
}
}
Snapshots of the development version are available in Sonatype's snapshots
repository.
Users
License
Copyright 2019 Sascha Peilicke
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*Note that all licence references and agreements mentioned in the log4k README section above
are relevant to that project's source code only.