Leshan

Leshan is a OMA Lightweight M2M server and client implementation.

What is OMA LWM2M: http://technical.openmobilealliance.org/Technical/release_program/lightweightM2M_v1_0.aspx

The specification: http://member.openmobilealliance.org/ftp/Public_documents/DM/LightweightM2M/

Introduction to LWM2M: http://fr.slideshare.net/zdshelby/oma-lightweightm2-mtutorial

Contact

Join the project mailling list :

leshan-lwm2m@googlegroups.com

https://groups.google.com/d/forum/leshan-lwm2m

Test Sandbox

You can try it live on our server demo instance: http://54.228.25.31/

Server

Get and run last binary

wget https://drone.io/github.com/jvermillard/leshan/files/leshan.jar
java -jar ./leshan.jar

Compile & Run

mvn install
cd leshan-standalone
mvn assembly:assembly -DdescriptorId=jar-with-dependencies

Run:

java -jar target/leshan-standalone-*-SNAPSHOT-jar-with-dependencies.jar

Connect on Leshan UI: http://localhost:8080

Leshan provides a very simple UI to get the list of connected clients and interact with clients resources.

Now you can register your LWM2M client using:

Eclipse Wakaama or its lua binding [lualwm2m] (https://github.com/sbernard31/lualwm2m).

Leshan-client library or use the example LeshanDevice. To build the LeshanDevice example, first compile the leshan-client:

mvn install
cd leshan-client-standalone
mvn assembly:assembly -DdescriptorId=jar-with-dependencies

Then run, setting first the hostname and port the client should use (i.e., something that isn't either 5683 or 5684 if both the server and client are running on the same machine) followed by the hostname and port of the server:

java -jar target/leshan-client-*-SNAPSHOT-jar-with-dependencies.jar localhost 9000 localhost 5683

The list of the registered clients: http://localhost:8080/api/clients

Code with eclipse

You need to add the M2_REPO to your java classpath variables. To do that you can execute the following command:

mvn -Declipse.workspace=<path-to-eclipse-workspace> eclipse:add-maven-repo

An eclipse restart is needed (if you already have it open).

You can also do that inside eclipse: From the menu bar, select Window > Preferences. Select the Java > Build Path > Classpath Variables page.

Now, you need to eclipsify leshan java projects,so run:

mvn eclipse:eclipse