Log

This is a simple log print utils, like android.util.Log.

log

The "log" module is written in kotlin and can be used anywhere in Java / Kotlin projects.

API Document dokka

log-android

The "log-android" module is a utility for using the "log" module on Android.

API Document dokka

Requirements

log
- Java SE 7 or later
log-android
- Android API Level 14 (Android 4.0.0) or later

And I strongly recommend to use with Lambda. (Kotlin, Java8, desugar, retrolambda, etc.)

Example of use

Initialize

This library needs to set Log Level. Default is never output log. And needs to specify a Sender. Default does nothing.

If you use the default implementation, write as follows.

private val DEBUG = true
private val VERBOSE = true
...
if (DEBUG) {
    Logger.setLogLevel(Logger.VERBOSE)
    Logger.setSender(Senders.create())
    Senders.appendCaller(VERBOSE)
    Senders.appendThread(VERBOSE)
}

for Android

If you write it like this, you can output log to Logcat. (default is System.out)

private val VERBOSE = true
...
if (BuildConfig.DEBUG) {
    Logger.setLogLevel(Logger.VERBOSE)
    Logger.setSender(AndroidSenders.create())
    AndroidSenders.appendCaller(VERBOSE)
    AndroidSenders.appendThread(VERBOSE)
}

Custom sender

Of course you can implement Sender any way. e.g. write to a file or send it to the network, etc.

Logger.setSender {level, message, throwable ->
    ...
}

If you want to use same format as the default, please try the following:

Logger.setSender(DefaultSender.create { level, tag, message ->
    ...
})

Log Level

If you set the log level, logs that are equal to or higher than the set value are output.

ASSERT > ERROR > WARN > INFO > DEBUG > VERBOSE

eg. If you set Log.ERROR

Logger.setLogLevel(Log.ERROR)

Only ASSERT or ERROR level logs are output.

logging

Logger.v("verbose")
Logger.d("debug")
Logger.i("info")
Logger.w("warning")
Logger.e("error")

Output

Logger.setLogLevel(Logger.VERBOSE)
Logger.setSender(Senders.create())

2018-02-24 05:02:05.510 V [MainWindow] verbose
2018-02-24 05:02:05.510 D [MainWindow] debug
2018-02-24 05:02:05.510 I [MainWindow] info
2018-02-24 05:02:05.510 W [MainWindow] warning
2018-02-24 05:02:05.510 E [MainWindow] error

Logger.setLogLevel(Logger.VERBOSE)
Logger.setSender(Senders.create())
Senders.appendCaller(true)
Senders.appendThread(true)

2018-02-24 05:02:46.541 V [MainWindow] [main,5,main] net.mm2d.upnp.sample.MainWindow.main(MainWindow.java:57) : verbose
2018-02-24 05:02:46.542 D [MainWindow] [main,5,main] net.mm2d.upnp.sample.MainWindow.main(MainWindow.java:58) : debug
2018-02-24 05:02:46.542 I [MainWindow] [main,5,main] net.mm2d.upnp.sample.MainWindow.main(MainWindow.java:59) : info
2018-02-24 05:02:46.542 W [MainWindow] [main,5,main] net.mm2d.upnp.sample.MainWindow.main(MainWindow.java:60) : warning
2018-02-24 05:02:46.542 E [MainWindow] [main,5,main] net.mm2d.upnp.sample.MainWindow.main(MainWindow.java:61) : error

How to use

jCenter will close in May. In 0.9.4 moved to mavenCentral from jcenter.
Please note that the groupID has changed

Download from mavenCentral.

Add dependencies, as following.

dependencies {
    implementation("net.mm2d.log:log:0.9.4")
}

If use with Android utils, as following.

dependencies {
    implementation("net.mm2d.log:log:0.9.4")
    implementation("net.mm2d.log:log-android:0.9.4")
}

Versions below 0.9.4 were distributed with jCenter. However, jCenter will close and old versions are not migrated to mavenCentral. If you need an older version, please use the Github Pages repository.

repositories {
    maven { url = URI("https://ohmae.github.com/maven") }
}

dependencies {
    implementation("net.mm2d:log:0.9.3")
    implementation("net.mm2d:log-android:0.9.3")
}

Dependent OSS

Kotlin
- org.jetbrains.kotlin:kotlin-stdlib

Author

大前良介 (OHMAE Ryosuke) http://www.mm2d.net/

License

MIT License

ohmae/log

Log

log