Files
smartmeter/app/helpers/InSyncState.rb
2013-06-26 16:45:00 -04:00

37 lines
1.0 KiB
Ruby

class InSyncState < StatePattern::State
END_OF_FRAME = "!\n"
def handle_byte_stream(bytes)
idx = 0
#sync_pattern_length = Synchronizer::SYNC_PATTERN.length
sync_pattern_length = END_OF_FRAME.length
#p "Sync length: #{sync_length}"
frame = ""
while (idx+sync_pattern_length < bytes.length && !new_frame_starts(bytes,idx,sync_pattern_length)) do
frame = frame + bytes[idx]
idx = idx +1
end
# did we reach the end of the frame?
if new_frame_starts(bytes,idx,sync_pattern_length)
p "------ FRAME -----"
frame_lines = frame.split("\n")
p frame_lines # should call to higher level
p "##################"
return bytes[idx+sync_pattern_length..-1]
else
return nil
end
end
private
def new_frame_starts(bytes,idx,sync_pattern_length)
#return bytes[idx..idx+sync_pattern_length-1].eql?(Synchronizer::SYNC_PATTERN)
return bytes[idx..idx+sync_pattern_length-1].eql?(END_OF_FRAME)
end
end