43 lines
1.3 KiB
Python
43 lines
1.3 KiB
Python
from Messages import IMessage
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class NameMsg(IMessage):
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id = 0x91
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length = 4
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def __init__(self, data, thing = None):
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if isinstance(data, bytes):
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self.network_id = data[1]
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self.thing_id = data[2]
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# name_length is not needed here
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self.name = data[NameMsg.length:].decode("utf-8")
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else:
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self.network_id = data
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if thing is not None:
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self.thing_id = thing.id
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self.name = thing.name
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else:
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self.thing_id = None
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self.name = None
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def Serialize(self, buffer_ref):
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if self.network_id is None or self.thing_id is None or self.name is None:
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return 0
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buffer: bytearray = buffer_ref[0]
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encoded_name = self.name.encode('utf-8')
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name_length = len(encoded_name)
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full_length = NameMsg.length + name_length
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if name_length == 0 or full_length > len(buffer):
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return 0
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buffer[0:NameMsg.length] = [
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NameMsg.id,
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self.network_id,
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self.thing_id,
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name_length
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]
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# Append the name string
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buffer[NameMsg.length:full_length] = encoded_name
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return full_length
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