OM2M/Web Interface

Start the sample plugin

• Go to the GSCL OSGi console and enter the following command to list all deployed plugins.

 osgi> ss

• Start the "org.eclipse.om2m.ipu.sample" plugin (id=24 in this example) by typing the following command:

 osgi> start 24

OSGi consolem: Start the lamps sample IPU

• The interworking proxy creates all required resources to enable to monitor and control lamps remotely and in a standardized way.
• After starting, you will see a java graphical interface displaying two lamps and three switches. You can use this interface to switch ON/OFF the two lamps separately or simultaneously.

GUI: Lamps sample

Application resources

• Open the NSCL web interface, and move to the GSCL resource tree. Click on the "applications" resource to list all registered applications. You will find the following resources:
  • "LAMP_0": an application resource enables to handle lamp 0.
  • "LAMP_1": an application resource enables to handle lamp 1.
  • "LAMP_ALL": is an application resource enables to handle simultaneously lamp 0 and lamp 1.

Web interface: The "applications" resource

Container resources

• Click on the "LAMP_0" application resource, and then click on the "containers" resource. You will find two containers:
  • "DESCRIPTOR" stores the lamp description.
  • "DATA" stores the lamp data.

Web interface: The "constainers" resource

ContentInstances resources

• Click on the "DESCRIPTOR" container, and then click on the "contentInstances" resource. You will find one contentInstance containing "LAMP_1" description.

Web interface: The "contetnInstances" resource

• Click on the contentInstance (CI974727193 in this example)
  • Click on the "getState" button to read the latest lamp state value stored in the GSCL database.
  • Click on the "getState(Direct)" button to read the lamp state directly from the lamp.
  • Click on the "switchON" to switch on the lamp.
  • Click on the "switchOFF" to switch off the lamp.
  • Click on the "toggle" button to toggle the lamp.

Web interface: The LAMP_1 description resource

Remote control lamps

• Try to switch ON "LAMP_0" via the NSCL web interface, and then check the lamp state value on the java graphical interface.
• Try to switch OFF "LAMP_0" via the java graphical interface, and the check the lamp state value using the NSCL web interface.

GUI: Lamp1 switched ON

Groups resources

• To understand how the group broadcast works, open the "groups" resource on the "gscl" base resource. Two groups are automatically created by the interworking proxy.
  • "ON_ALL" group handles requests to switch ON all lamps.
  • "OFF_ALL" group handles requests to switch OFF all lamps.

Web interface: The "groups" resource

• Click on the "ON_ALL" group resource. You can notice that the "members" attribute is automatically set by the interworking proxy with "LAMP_0" and "LAMP_1" switch ON request URIs.

Web interface: The ON_ALL "group" resource

Remote control group of lamps

• If you send a request to the "membersContent" resource, the GSCL will broadcast it to all the group members.
• You can try to switch ON/OFF simultaneously "LAMP_0" and "LAMP_1" using the "LAMP_ALL" application resource.

Web interface: The LAMP_ALL description resource

• Switch ON the two lamps, and then check lamps states on the java graphical interface.

GUI: All lamps are switched ON