REEF is available on both Linux and Windows and supports developing applications in the Java or C# programming languages.

REEF Git Repositories

Building on Linux

Building on Windows

Cloning the repository

Committers

git clone https://git-wip-us.apache.org/repos/asf/reef.git

Users

git clone git://git.apache.org/reef.git

Setting the Runtime Java Environment

The version of Java used to compile REEF is controlled in the Maven pom.xml file in the build plugins section as the maven-compiler-plugin artifact identifier. In order to run REEF applications, you must set the JAVA_HOME environment variable to the correct Java installation directory for your operating system and java version.

Linux

On a number of Linux distributions such as Ubuntu, the current active version of Java is controlled via links from /usr/bin set by the update-alternatives command; thus, the value of JAVA_HOME that causes REEF to use the Java version controlled by update-alternatives is given in the code block below. REEF will concatenate the appropriate path to find executable files. 

export JAVA_HOME=/usr

You can change the active version of Java controlled by update-alternatives by entering the command below and selecting the desired version from the displayed list.

update-alternatives --config java

Windows

On Windows, the JAVA_HOME environment variable is set by the Java installer to $SYSTEM_DRIVE\Program Files\Java\jdk[version number]. You can examine the value of JAVA_HOME on Windows by entering the following command in a powerShell console window.

$env:JAVA_HOME

Compiling

Java build instructions

C# build instructions