Wireless Web Services with J2ME Part II, by Kyle Gabhart & Jason Gordon
WSJ Vol 02 Issue 02 - pg.48

	


Listing 1


public void commandAction( Command com, 
                           Displayable dis ) {  *
  if ( dis == airportMenu && 
       com == List.SELECT_COMMAND ) {
 // An airport has been selected  
  } 
  else if ( dis == servicesMenu && 
            com == List.SELECT_COMMAND ) {
 // A weather service has been selected
  } 
  else if ( com == backCommand ) {
// The back button returns to airport menu
  }
  else if ( com == exitCommand ) {
 // The exit button exits the midlet
  }//end if/else 
}//end commandAction(Command, Displayable)


Listing 2


switch( choice ) {
 case 0:
  SoapObject obj = (SoapObject) 
     callService( currentAirport, "getSummary" );
  if (obj != null ) {
   result = "The weather at " + 
    obj.getProperty(0) + " is " + 
    obj.getProperty(3) + " with a " + 
    obj.getProperty(2) + " sky, and wind " +     
    obj.getProperty(1) + ". The humidity is " + 
    obj.getProperty(4) + ", the pressure is " +  
    obj.getProperty(5) + ", and visibility is " +  
    obj.getProperty(6) + ".";
  }//end if (obj != null)
  break;
 case 1:
  result = (String) callService( currentAirport, 
                                 "getHumidity" );
  break;
 case 2:
  result = (String) callService( currentAirport, 
                                 "getPressure" );
  break;
 case 3:
  result = (String) callService( currentAirport, 
                            "getSkyConditions" );
  break;
 case 4:
  result = (String) callService( currentAirport, 
                              "getTemperature" );
  break;
 case 5:
  result = (String) callService( currentAirport, 
                                       "getOb" );
  break;
 case 6:
  result = (String) callService( currentAirport, 
                                     "getWind" );
  break;
}//end switch();    
   
//display the result
response.setString( result );
display.setCurrent( response );
  


Listing 3


private Object callService( int choice, 
                            String methodName ) {
 Object result = null;
 
 try {
  transport = new HttpTransport( serviceUrl, 
                 soapAction + "#" + methodName );
  transport.debug = true;
     
  classMap = new ClassMap();
  classMap.prefixMap = new PrefixMap( 
   classMap.prefixMap, "air", serviceNamespace );
  
  transport.setClassMap( classMap );
     
  request = new SoapObject( serviceNamespace, 
                            methodName );
  request.addProperty( "arg0", 
                        airportCodes[ choice ] );
  result = transport.call( request );
 } catch( Exception e ) {
    e.printStackTrace();
    System.out.println( "Request: \n" + 
                        transport.requestDump );
    System.out.println( "Response: \n" + 
                        transport.responseDump );
    result = null;
 }//end try/catch
  
 return result;
}//end callService()