Class: Sappho::Heatmiser::Proxy::HeatmiserClient
- Inherits:
-
Object
- Object
- Sappho::Heatmiser::Proxy::HeatmiserClient
- Includes:
- LogUtilities
- Defined in:
- lib/sappho-heatmiser-proxy/heatmiser_client.rb
Defined Under Namespace
Classes: ClientDataError
Instance Method Summary collapse
- #communicate ⇒ Object
-
#initialize(client, ip) ⇒ HeatmiserClient
constructor
A new instance of HeatmiserClient.
- #read(size) ⇒ Object
Constructor Details
#initialize(client, ip) ⇒ HeatmiserClient
Returns a new instance of HeatmiserClient.
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# File 'lib/sappho-heatmiser-proxy/heatmiser_client.rb', line 19 def initialize client, ip @ip = ip @client = client end |
Instance Method Details
#communicate ⇒ Object
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# File 'lib/sappho-heatmiser-proxy/heatmiser_client.rb', line 24 def communicate queue = CommandQueue.instance status = HeatmiserStatus.instance config = SystemConfiguration.instance log = Sappho::ApplicationAutoFlushLog.instance active = true while active do begin command = read 5 if command == 'check' reply = status.get { status.valid ? 'ok' : 'error: last response from heatmiser unit was invalid' } log.info "client #{@ip} checking status - reply: #{reply}" @client.write "#{reply}\r\n" active = false else command = command.unpack('c*') log.debug "header: #{hexString command}" if log.debug? raise ClientDataError, "invalid pin" unless (command[3] & 0xFF) == config.pinLo and (command[4] & 0xFF) == config.pinHi packetSize = (command[1] & 0xFF) | ((command[2] << 8) & 0xFF00) raise ClientDataError, "invalid packet size" if packetSize < 7 or packetSize > 128 command += read(packetSize - 5).unpack('c*') queue.push @ip, command unless (command[0] & 0xFF) == 0x93 status.get { @client.write status.raw.pack('c*') if status.valid } log.info "command received from client #{@ip} so it is alive" end rescue Timeout::Error log.info "timeout on client #{@ip} so presuming it dormant" active = false rescue ClientDataError => error log.info "data error from client #{@ip}: #{error.}" active = false rescue => error log.error error active = false end end end |
#read(size) ⇒ Object
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# File 'lib/sappho-heatmiser-proxy/heatmiser_client.rb', line 62 def read size data = @client.read size raise ClientDataError, "nothing received so presuming it has disconnected" unless data and data.size == size data end |