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Eclipse Leshan™ is an OMA Lightweight M2M server and client Java implementation.

What is OMA LWM2M ?
The specification.
Object and Resource Registry.

Leshan provides libraries which help people to develop their own Lightweight M2M server and client.
The project also provides a client, a server and a bootstrap server demonstration as an example of the Leshan API and for testing purpose.

Join the project mailing list : subscribe.
Mail address: [email protected].
Access to leshan-dev archives.

You can try live our servers demos instances:

• The lwm2m server at http://leshan.eclipse.org/
  (coap://leshan.eclipse.org:5683 and coaps://leshan.eclipse.org:5684)
• The bootstrap server at http://leshan.eclipse.org/bs/
  (coap://leshan.eclipse.org:5783 and coaps://leshan.eclipse.org:5784)

(Automatic deployment of master branch)

Get and run the last binary of our demo server :

wget https://hudson.eclipse.org/leshan/job/leshan/lastSuccessfulBuild/artifact/leshan-server-demo.jar
java -jar ./leshan-server-demo.jar

Get and run the last binary of our demo client :

wget https://hudson.eclipse.org/leshan/job/leshan/lastSuccessfulBuild/artifact/leshan-client-demo.jar
java -jar ./leshan-client-demo.jar

Get and run the last binary of our bootstrap demo server :

wget https://hudson.eclipse.org/leshan/job/leshan/lastSuccessfulBuild/artifact/leshan-bsserver-demo.jar
java -jar ./leshan-bsserver-demo.jar

mvn clean install

Run demo server:

java -jar leshan-server-demo/target/leshan-server-demo-*-SNAPSHOT-jar-with-dependencies.jar 

Connect on Leshan demo 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 a LWM2M client by running our client demo:

java -jar leshan-client-demo/target/leshan-client-demo-*-SNAPSHOT-jar-with-dependencies.jar 

or trying the Eclipse Wakaama test client or script samples of its lua binding [lualwm2m] (https://github.com/sbernard31/lualwm2m).

You can also try our bootstrap demo server:

java -jar leshan-bsserver-demo/target/leshan-bsserver-demo-*-SNAPSHOT-jar-with-dependencies.jar 

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

leshan-core : commons elements.
leshan-core-cf : commons elements which depend on californium.
leshan-server-core : server lwm2m logic.
leshan-server-cf : server implementation based on californium.
leshan-client-core : client lwm2m logic.
leshan-client-cf : client implementation based on californium.
leshan-all : every previous modules in 1 jar.
leshan-client-demo : a simple demo client.
leshan-server-demo : a lwm2m demo server with a web UI.
leshan-bsserver-demo : a bootstarp demo server with a web UI.
leshan-integration-tests : integration automatic tests.