Class: Elemac::Converter

Inherits:
Object
  • Object
show all
Defined in:
lib/elemac/converter.rb

Constant Summary collapse

BIT32_HIGH_MASK = 
4278190080
BIT32_LOW_MASK = 
16711680
BIT16_HIGH_MASK = 
65280
BIT16_LOW_MASK = 
255

Class Method Summary collapse

Class Method Details

.bit16_high(value) ⇒ Object 



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# File 'lib/elemac/converter.rb', line 15

def self.bit16_high(value)
	(value & BIT16_HIGH_MASK) >> 8
end

.bit16_low(value) ⇒ Object 



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# File 'lib/elemac/converter.rb', line 18

def self.bit16_low(value)
	(value & BIT16_LOW_MASK)
end

.bit32_high(value) ⇒ Object 



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# File 'lib/elemac/converter.rb', line 9

def self.bit32_high(value)
	(value & BIT16_HIGH_MASK) >> 24
end

.bit32_low(value) ⇒ Object 



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# File 'lib/elemac/converter.rb', line 12

def self.bit32_low(value)
	(value & BIT32_LOW_MASK) >> 16
end

.format_date(year, month, date) ⇒ Object 



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# File 'lib/elemac/converter.rb', line 55

def self.format_date(year,month,date)
	"#{year.to_s.rjust(2,'0')}-#{month.to_s.rjust(2,'0')}-#{date.to_s.rjust(2,'0')}"
end

.format_time(hour, minute, second) ⇒ Object 



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# File 'lib/elemac/converter.rb', line 58

def self.format_time(hour,minute,second)
	"#{hour.to_s.rjust(2,'0')}:#{minute.to_s.rjust(2,'0')}:#{second.to_s.rjust(2,'0')}"
end

.int_to_hour(value) ⇒ Object 



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# File 'lib/elemac/converter.rb', line 21

def self.int_to_hour(value)
	hour 	= bit16_low(value).to_s
	minute 	= bit16_high(value).to_s
	"#{hour.rjust(2,'0')}:#{minute.rjust(2,'0')}"
end

.long_to_date(value) ⇒ Object 



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# File 'lib/elemac/converter.rb', line 30

def self.long_to_date(value)
	day 	= bit32_low(value).to_s
	month 	= bit16_high(value).to_s
	year	= (2000 + bit16_low(value).to_i).to_s
	"#{year}-#{month.rjust(2,'0')}-#{day.rjust(2,'0')}"
end

.ph_9_enabled(value) ⇒ Object 



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# File 'lib/elemac/converter.rb', line 61

def self.ph_9_enabled(value)
	value & 4 > 0
end

.ph_reminder(value, calibration_date, reminder = 0) ⇒ Object

calibration date should be in format YYYY-MM-DD reminder is the amount of months that ph has to be calibrated



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# File 'lib/elemac/converter.rb', line 38

def self.ph_reminder(value, calibration_date, reminder=0)
	value = value & 3
	ph7, ph49, out_of_date = false
	case(value)
	when 0
		ph7, ph49, out_of_date = false, false, false
	when 1
		ph7, ph49, out_of_date = true, false, false
	when 2
		ph7, ph49, out_of_date = false, true, false
	when 3
		ph7, ph49 = true, true
		next_calibration_date = Date.parse(calibration_date) << -reminder
		out_of_date = next_calibration_date < Date.today 
	end
	"PH7: #{ph7.to_s}, PH49: #{ph49.to_s}, Calibrated: #{out_of_date.to_s}"
end

.seconds_to_hsm(value) ⇒ Object 



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# File 'lib/elemac/converter.rb', line 26

def self.seconds_to_hsm(value)
	value = 14400 if value > 14400
	Time.at(value).utc.strftime("%H:%M:%S")
end