EnergyMon Java Bindings

This project provides Java bindings and thin wrappers around the energymon-default library.

Currently, only Linux is supported.

Dependencies

The energymon-default library and headers should be installed to the system.

The latest energymon C libraries can be found at https://github.com/energymon/energymon.

Building

This project uses Maven. Currently the only supported platforms are the unix family. To build and run junit tests:

mvn clean install

If energymon-default is not installed to a default location, you need to set the PKG_CONFIG_PATH environment variable or export it to your environment so that pkg-config can discover the library. Unless you are skipping tests (-DskipTests=true), you must do the same for LD_LIBRARY_PATH.

PKG_CONFIG_PATH=/path/to/energymon/install/lib/pkgconfig:$PKG_CONFIG_PATH \
  LD_LIBRARY_PATH=/path/to/energymon/install/lib/:$LD_LIBRARY_PATH \
  mvn clean package

Usage

To integrate with the library, add it as a Maven dependency to your project's pom.xml:

    <dependency>
      <groupId>edu.uchicago.cs.energymon</groupId>
      <artifactId>energymon</artifactId>
      <version>0.0.1</version>
    </dependency>

To use the edu.uchicago.cs.energymon.EnergyMon interface, instantiate edu.uchicago.cs.energymon.DefaultEnergyMon.

When launching, you will need to set the property java.library.path to include the location of the native library created by the module libenergymon-default-wrapper.

Example

There is an example implementation in the example directory - see the class edu.uchicago.cs.energymon.EnergyMonJNIExample. After building, you can change directory to example/target/energymon-example-0.0.1-bin and run:

java -Djava.library.path=. \
  -cp energymon-example.jar:energymon.jar:energymon-native-jni.jar \
  edu.uchicago.cs.energymon.EnergyMonJNIExample

If energymon-default is not installed to the system, you need to set LD_LIBRARY_PATH as described above.

Project Source

Find this and related project sources at the energymon organization on GitHub.
This project originates at: https://github.com/energymon/energymon-jni

Bug reports and pull requests for bug fixes and enhancements are welcome.