1 # Copyright 2014 The Chromium Authors. All rights reserved. 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 6 class Device(object): 7 """ A base class of devices. 8 A device instance contains all the necessary information for constructing 9 a platform backend object for remote platforms. 10 11 Attributes: 12 name: A device name string in human-understandable term. 13 guid: A unique id of the device. Subclass of device must specify this 14 id properly so that device objects to a same actual device must have same 15 guid. 16 """ 17 18 def __init__(self, name, guid): 19 self._name = name 20 self._guid = guid 21 22 @property 23 def name(self): 24 return self._name 25 26 @property 27 def guid(self): 28 return self._guid 29 30 @classmethod 31 def GetAllConnectedDevices(cls): 32 raise NotImplementedError() 33
