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Logging in Android

The Android™ Unified API client uses slf4j-android-logger to log messages to the Android logging system.

Log levels

Diffusion™ events are logged at different levels of severity. The log levels, ordered from most severe to least severe, are as follows:

Table 1. Log levels
Level Description
ERROR Events that indicate a failure.
WARN Events that indicate a problem with operation.
INFO Significant events.
DEBUG Verbose logging. Not usually enabled for production.
TRACE High-volume logging of interest only to Push Technology Support. Push Technology Support may occasionally ask you to enable this log level to diagnose issues.
Warning: Logging can use considerable CPU resources. In a production environment, enable only significant log messages (INFO and above). Performance degrades significantly when running at finer logging levels as more messages are produced, each requiring processing.

Configuring logging in the Android client

The Android JAR, diffusion-android-x.x.x.jar, contains a properties file, logger.properties. Edit this properties file to configure logging in the Diffusion Android client.

The default logger.properties file contains the following properties:
de.psdev.slf4j.android.logger.logTag=DiffusionAndroidClient
de.psdev.slf4j.android.logger.defaultLogLevel=INFO

For more information about slf4j-android-logger, see https://github.com/PSDev/slf4j-android-logger