Class: Cosmos::ProcessorParser

Inherits:
Object
  • Object
show all
Defined in:
lib/cosmos/packets/parsers/processor_parser.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(parser) ⇒ ProcessorParser

Returns a new instance of ProcessorParser.

Parameters:



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# File 'lib/cosmos/packets/parsers/processor_parser.rb', line 34

def initialize(parser)
  @parser = parser
end

Class Method Details

.parse(parser, packet, cmd_or_tlm) ⇒ Object

Parameters:

  • parser (ConfigParser) —

    Configuration parser

  • packet (Packet) —

    The current packet

  • cmd_or_tlm (String) —

    Whether this is a command or telemetry packet



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# File 'lib/cosmos/packets/parsers/processor_parser.rb', line 27

def self.parse(parser, packet, cmd_or_tlm)
  @parser = ProcessorParser.new(parser)
  @parser.verify_parameters(cmd_or_tlm)
  @parser.create_processor(packet)
end

Instance Method Details

#create_processor(packet) ⇒ Object

Parameters:

  • packet (Packet) —

    The packet the processor should be added to



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# File 'lib/cosmos/packets/parsers/processor_parser.rb', line 49

def create_processor(packet)
  # require should be performed in target.txt
  klass = @parser.parameters[1].filename_to_class_name.to_class
  raise @parser.error("#{@parser.parameters[1].filename_to_class_name} class not found. Did you require the file in target.txt?", @usage) unless klass

  if @parser.parameters[2]
    processor = klass.new(*@parser.parameters[2..(@parser.parameters.length - 1)])
  else
    processor = klass.new
  end
  raise ArgumentError, "processor must be a Cosmos::Processor but is a #{processor.class}" unless Cosmos::Processor === processor

  processor.name = get_processor_name()
  packet.processors[processor.name] = processor
rescue Exception => err
  raise @parser.error(err, @usage)
end

#verify_parameters(cmd_or_tlm) ⇒ Object

Parameters:

  • cmd_or_tlm (String) —

    Whether this is a command or telemetry packet



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# File 'lib/cosmos/packets/parsers/processor_parser.rb', line 39

def verify_parameters(cmd_or_tlm)
  if cmd_or_tlm == PacketConfig::COMMAND
    raise @parser.error("PROCESSOR only applies to telemetry packets")
  end

  @usage = "PROCESSOR <PROCESSOR NAME> <PROCESSOR CLASS FILENAME> <PROCESSOR SPECIFIC OPTIONS>"
  @parser.verify_num_parameters(2, nil, @usage)
end