Invoking UPnP actions

[chihi asma <ch...@yahoo.fr>]

Hi, 

I have an UPnP Control point that detects very well UPnP devices and for the need of my application I have to implement another bundle that can invoke a UPnP device's actions, 
Can anyone tell me which is the best method to do that? How can I invoke actions from another bundle than the control point? 
Thanks in advance for your help.

Asma




      

Re: Invoking UPnP actions

[Francesco Furfari <fr...@isti.cnr.it>]

Hello Asma,

more or less your bundle should:

1) Search for the UPnPDevice service that matches your device

String myFilter = "(" + UPnPDevice.ID + "="+ aDeviceId + ")";
ServiceReference[] refs =
  context.getServiceReferences(UPnPDevice.class.getName(),myFilter );
if (refs != null) {
   UPnPDevice myDevice = (UPnPDevice) context.getService(refs[0]);
}

there are different way to do it  .... by deviceID, by deviceType, by 
services and so on,  and remember you may have different matches.

2) Retrieve the UPnPAction object from the UPnPDevice object:
UPnPAction  myAction =
myDevice.getService(aServiceId).getAction(aActionName);

3) Invoke the action by passing the right parameters
myDictionary = new Hashtable();
myDictionary.add("parameterName1", value);
myDictionary.add("parameterName2", value);
result = myAction.invoke(myDictionary);
... parse dictionary result if any



the above snippets supposes the UPnP device is already running and 
discovered by the UPnPBase driver. In case your bundle is installed 
before of the device, you need to register a ServiceListener to be 
notified when the UPnP device is plugged on the network.

regards,
francesco

chihi asma wrote:
> Hi, 
> 
> I have an UPnP Control point that detects very well UPnP devices and for the need of my application I have to implement another bundle that can invoke a UPnP device's actions, 
> Can anyone tell me which is the best method to do that? How can I invoke actions from another bundle than the control point? 
> Thanks in advance for your help.
> 
> Asma
> 
> 
> 
> 
>       


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