Coverage for d7a/phy/channel_id.py: 100%

24 statements  

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1# 

2# Copyright (c) 2015-2021 University of Antwerp, Aloxy NV. 

3# 

4# This file is part of pyd7a. 

5# See https://github.com/Sub-IoT/pyd7a for further info. 

6# 

7# Licensed under the Apache License, Version 2.0 (the "License"); 

8# you may not use this file except in compliance with the License. 

9# You may obtain a copy of the License at 

10# 

11# http://www.apache.org/licenses/LICENSE-2.0 

12# 

13# Unless required by applicable law or agreed to in writing, software 

14# distributed under the License is distributed on an "AS IS" BASIS, 

15# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 

16# See the License for the specific language governing permissions and 

17# limitations under the License. 

18# 

19import struct 

20 

21from d7a.phy.channel_header import ChannelHeader 

22from d7a.support.schema import Validatable, Types 

23 

24 

25class ChannelID(Validatable): 

26 

27 SCHEMA = [{ 

28 "channel_header": Types.OBJECT(ChannelHeader), 

29 "channel_index": Types.INTEGER(min=0, max=0xFFFF), 

30 }] 

31 

32 def __init__(self, channel_header, channel_index): 

33 self.channel_header = channel_header 

34 self.channel_index = channel_index 

35 super(ChannelID, self).__init__() 

36 

37 def __iter__(self): 

38 for byte in self.channel_header: yield byte 

39 for byte in bytearray(struct.pack(">H", self.channel_index)): yield byte 

40 

41 

42 @staticmethod 

43 def parse(s): 

44 channel_header = ChannelHeader.parse(s) 

45 channel_index = s.read("uint:16") 

46 return ChannelID(channel_header=channel_header, channel_index=channel_index) 

47 

48 def __str__(self): 

49 return "{0}{1:0>3}".format(self.channel_header, self.channel_index) 

50 

51 @staticmethod 

52 def from_string(s): 

53 channel_header = ChannelHeader.from_string(s[0:5]) 

54 channel_index = int(s[5:8]) 

55 return ChannelID(channel_header=channel_header, channel_index=channel_index)