Class: LadderDrive::LadderDriveConfig

Inherits:
Object
  • Object
show all
Defined in:
lib/ladder_drive/config.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ LadderDriveConfig

Returns a new instance of LadderDriveConfig.



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# File 'lib/ladder_drive/config.rb', line 59

def initialize options={}
  default = {
    input: "asm/main.asm",
    output: "build/main.hex",
  }
  emulator_default = {
    host: "localhost",
    port: 5555,
    protocol: "emu_protocol",
    keep: [
      ["L0", "L1023"],
      ["H0", "H1023"],
    ],
  }
  raspberrypi_default = {
    host: "localhost",
    port: 5555,
    protocol: "emu_protocol",
    keep: [
      ["L0", "L1023"],
      ["H0", "H1023"],
    ],
    io: {
      inputs: {
        x0: 4,
        x1: 17,
        x2: 27,
        x3: 22,
        x4: 5,
        x5: 6,
        x6: 13,
        x7: 19,
        x8: 26,
      },
      outputs: {
=begin
        y0: 18,
        y1: 23,
        y2: 24,
        y3: 25,
        y4: 12,
        y5: 16,
        y6: 20,
        y7: 21,
=end
      }
    },
  }

  @config = default.merge options
  @config[:plc] ||= {}
  @config[:plc][:emulator] = @config[:plc][:emulator] ? emulator_default.merge(@config[:plc][:emulator]) : emulator_default
  @config[:plc][:raspberrypi] = @config[:plc][:raspberrypi] ? emulator_default.merge(@config[:plc][:raspberrypi]) : raspberrypi_default

  @config[:default] ||= {}

  @targets = {}
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args) ⇒ Object 



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# File 'lib/ladder_drive/config.rb', line 137

def method_missing(name, *args)
  name = name.to_s unless name.is_a? String
  case name.to_s
  when /(.*)=$/
    @config[$1.to_sym] = args.first
  else
    @config[name.to_sym]
  end
end

Class Method Details

.default ⇒ Object 



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# File 'lib/ladder_drive/config.rb', line 41

def default
  @config ||= begin
    load File.join("config", "plc.yml")
  end
end

.load(path) ⇒ Object 



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# File 'lib/ladder_drive/config.rb', line 47

def load path
  h = {}
  if File.exist?(path)
    erb = ERB.new File.read(path)
    h = YAML.load(erb.result(binding))
    h = JSON.parse(h.to_json, symbolize_names: true)
  end
  new h || {}
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/ladder_drive/config.rb', line 118

def [] key
  @config[key]
end

#target(name = nil) ⇒ Object 



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# File 'lib/ladder_drive/config.rb', line 122

def target name=nil
  name ||= (@config[:default][:target] || :emulator)
  name = name.to_sym if name.is_a? String
  target = @targets[name]
  unless target
    h = @config[:plc][name]
    unless h.nil? || h.empty?
      h = {name:name}.merge h
      target = LadderDriveConfigTarget.new h
      @targets[name] = target
    end
  end
  target
end