P2P

First, import package as follows:

        import org.osgi.service.event.Event;
        import org.osgi.service.event.EventHandler;
        import com.infairy.cocina.SDK.gene.EventP2PDNA;
      

then, implement "EventHandler" in your bundle class:

        package yourBundle;

        public class CommData implements BundleActivator, EventHandler{
            ....

        }
      

Third, implement HandleEvent() method,

        public void handleEvent(Event evnt) {
          ...
        }
      

Last, do not forget listen SENSOR broadcast channel in start() method, because the hardware is a dna object,

        package yourBundle;

        public class CommData implements BundleActivator, EventHandler{
            ....

            public void start(BundleContext context) throws Exception {

                ...
                device.ListenBroadcast(context, this, device.BROADCAST_CHANNEL_P2P);

            }

        }
      

after done the process as above, you can get the data from all RXTX channel, but not every data is yours, so you have to filter the data by "RXTX_Device_Name", and then, check the data checksum value if it is necessary.

          public void handleEvent(Event evnt) {
              
            if(evnt==null) return;

            //cast EventP2PDNA from event property "BROADCAST_P2P_EVENTOBJECT"
            EventP2PDNA P2PEVT=(EventP2PDNA)evnt.getProperty(device.BROADCAST_P2P_EVENTOBJECT);
            if(P2PEVT!=null){
              String triggertype=P2PEVT.TYPE;

              //get the hardware device added nitification
              if(triggertype!=null && triggertype.equals(device.BROADCAST_P2P_HOMEAPPLIANCE_DEVICE_ADDED)){       

                ...

              }

              //get the hardware device removec nitification
              if(triggertype!=null && triggertype.equals(device.BROADCAST_P2P_HOMEAPPLIANCE_DEVICE_REMOVED)){
                ...
              }
            }
          }

      

The EventP2PDNA interface shows as below:

          /**
           * Auto start search p2p
           */
          public boolean autoStart=false;
          /**
           * P2P Object ID
           */
          public String ID="";
          /**
           * P2P Type: {@link com.infairy.cocina.SDK.device.DevicePool#DEVICE_P2POBJECT_ADDED} / {@link com.infairy.cocina.SDK.device.DevicePool#DEVICE_P2POBJECT_REMOVED}
           */
          public String TYPE="";
          
          /**
           * P2P Object Alias
           */
          public String ALIAS="";
          
          /**
           * P2P Icon name
           */
          public String IconName="";
          
          /**
           * Tip Images
           */
          public String[] TipImages=null;
          
          /**
           * Data byte array
           * 
           */
          public byte[] DATA=null;
      

Then, get the p2p device and filter you want:

  
        private void getP2PDevice(){
            ArrayList p2p=device.getP2PDevice();    
            for(int i=0; i < p2p.size(); i++){
              Object[] data=(Object[])p2p.get(i);  //get p2p object
              String id=(String)data[0];           //get id of p2p device
              String alias=(String)data[1];        //get id of p2p alias for special purpos2
              String icon=(String)data[2];         //get icon file path 
              Object p2pDevice=device.getP2PDeviceImpl(id);     
              //cast object to any object type, such as HomeApplianceDevice
              HomeApplianceInterface hai=(HomeApplianceInterface)p2pDevice;  
              .....
            }
        }