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Contents
# encoding: ascii-8bit
# Copyright 2014 Ball Aerospace & Technologies Corp.
# All Rights Reserved.
#
# This program is free software; you can modify and/or redistribute it
# under the terms of the GNU General Public License
# as published by the Free Software Foundation; version 3 with
# attribution addendums as found in the LICENSE.txt
require 'cosmos/conversions/conversion'
module Cosmos
# Converts a unix format time: Epoch Jan 1 1970, seconds and microseconds
class UnixTimeConversion < Conversion
# Initializes the time item to grab from the packet
#
# @param seconds_item_name [String] The telemetry item in the packet which
# represents the number of seconds since the UNIX time epoch
# @param microseconds_item_name [String] The telemetry item in the packet
# which represents microseconds
def initialize(seconds_item_name, microseconds_item_name = nil)
@seconds_item_name = seconds_item_name
@microseconds_item_name = microseconds_item_name
end
# @param (see Conversion#call)
# @return [Float] Packet time in seconds since UNIX epoch
def call(value, packet, buffer)
if @microseconds_item_name
return Time.at(packet.read(@seconds_item_name, :RAW, buffer), packet.read(@microseconds_item_name, :RAW, buffer))
else
return Time.at(packet.read(@seconds_item_name, :RAW, buffer), 0)
end
end
# @return [String] The name of the class followed by the time conversion
def to_s
if @microseconds_item_name
return "Time.at(packet.read('#{@seconds_item_name}', :RAW, buffer), packet.read('#{@microseconds_item_name}', :RAW, buffer))"
else
return "Time.at(packet.read('#{@seconds_item_name}', :RAW, buffer), 0)"
end
end
end # class UnixTimeConversion
end # module Cosmos
Version data entries
20 entries across 20 versions & 1 rubygems