ruby gpsd reader

ntgps.rb

equire 'date'
require 'rubygems'
require 'cool.io'
require 'yajl'

ADDR = '127.0.0.1'
PORT = 2947


class Gps
  def self.new_data hash
    if (hash.is_a? Hash) && (!hash["class"].nil?)
      gps = Gps.new
      gps.parse_hash hash
    else
      puts hash
      puts "Something wrong? Received hash is invalid"
    end
  end

  def parse_hash hash
    data_type = hash["class"]
    if data_type == "SKY"
      process_sky hash
    elsif data_type == "TPV"
      process_tpv hash
    end
    # ignore other data_type FTM
  end

  def display_loc

  end

  def process_sky hash
    #puts hash

 end

  def process_tpv hash
    @time = Time.at(hash["time"].to_i)
    @lon = hash["lon"]
    @lat = hash["lat"]
    @alt = hash["alt"]
    @spd = hash["speed"]
    @trk = hash["track"]
    puts "#{@time}| #{@lon}, #{@lat} | #{@alt}M, #{@spd}M/s, #{@trk}"
  end

  def print_raw

  end

  def gather_from_gpsd

  end


end


### IO ###

def gather_from_gpsd host, prot, _lambda
  parser = Yajl::Parser.new
  parser.on_parse_complete = _lambda

  cool.io.connect ADDR, PORT do
    on_connect do
      puts "Connected to gpsd on #{ADDR}:#{PORT}"
      write "?WATCH={\"enable\":true,\"json\":true}"
    end

    on_read do |data|
      parser << data
    end
  end

  cool.io.run
end


### MAIN ###

gather_from_gpsd ADDR, PORT, lambda{|data| Gps.new_data data}