[REEF-1519] Improve readability of code and logs in REEF launcher

Multiple code clean-ups that do not impact the functionality.

  * Add missing Javadoc comments and expand the existing ones.
  * Reorder methods to make code more readable.
  * Fix the formatting for code clarity.
  * Do minor reafactoring to remove duplicate code and improve readability.
  * Minor fixes to log messages for clarity and searchability.
  * Pretty print JSON configuration on startup.

JIRA:
  [REEF-1519](https://issues.apache.org/jira/browse/REEF-1519)

Pull request:
  Closes #1091
2 files changed
tree: ebc963ea796f4c99c57399c5f14500ebee8b8168
  1. bin/
  2. dev/
  3. lang/
  4. website/
  5. .gitattributes
  6. .gitignore
  7. .travis.yml
  8. appveyor.yml
  9. Doxyfile
  10. HEADER
  11. LICENSE
  12. NOTICE
  13. pom.xml
  14. README.md
README.md

Apache REEF™

Apache REEF™ (Retainable Evaluator Execution Framework) is a library for developing portable applications for cluster resource managers such as Apache Hadoop YARN or Apache Mesos. For example, Microsoft Azure Stream Analytics is built on REEF and Hadoop.

Online Documentation

Detailed information on REEF can be found in the following places:

The developer mailing list is the best way to reach REEF‘s developers when the above aren’t sufficient.

Build Status

ComponentOSStatus
REEF JavaUbuntuBuild Status
REEF.NETWindowsBuild status

Building REEF

Java.NET
Build & run unit testsjava\BUILD.mdcs\BUILD.md

Releases

downloads NuGet package

License

Apache 2.0