facade_exercise.py

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from io import StringIO
 
from .facade_interface import IDeviceNetworkHighLevel
from .facade_highlevelsystem import CreateHighLevelInstance
 
 
 
def _Facade_ShowIdCodes(chainIndex : int, idcodes : list) -> None:
    output = StringIO()
    output.write("    On chain {0}, idcodes = [ ".format(chainIndex))
    for idcode in idcodes:
        output.write("0x{0:X} ".format(idcode))
    output.write("]")
    print(output.getvalue())
 
 
 
 
 
# ! [Using Facade in Python]
def Facade_Exercise():
    print()
    print("Facade Exercise")
 
    deviceChainFacade = CreateHighLevelInstance()
    numChains = deviceChainFacade.GetNumChains()
    print("  Showing idcodes of devices after a device reset (expect one device on each chain)...")
    for chainIndex in range(0, numChains):
        deviceChainFacade.DisableDevicesInDeviceChain(chainIndex)
        idcodes = deviceChainFacade.GetIdcodes(chainIndex)
        _Facade_ShowIdCodes(chainIndex, idcodes)
 
    print("  Showing idcodes of devices after selecting all devices...")
    for chainIndex in range(0, numChains):
        deviceChainFacade.EnableDevicesInDeviceChain(chainIndex, 0xffffffff)
        idcodes = deviceChainFacade.GetIdcodes(chainIndex)
        _Facade_ShowIdCodes(chainIndex, idcodes)
    
    print("  Done.")
# ! [Using Facade in Python]