Class: Paxmex::Schema::Field

Inherits:
Object
  • Object
show all
Defined in:
lib/paxmex/schema/field.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(opts = {}) ⇒ Field

Returns a new instance of Field.



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# File 'lib/paxmex/schema/field.rb', line 7

def initialize(opts = {})
  @name  = opts[:name]
  @start = opts[:start]
  @final = opts[:final]
  @type  = opts[:type] || 'string'
end

Instance Attribute Details

#final ⇒ Object (readonly)

Returns the value of attribute final.



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# File 'lib/paxmex/schema/field.rb', line 5

def final
  @final
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/paxmex/schema/field.rb', line 5

def name
  @name
end

#start ⇒ Object (readonly)

Returns the value of attribute start.



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# File 'lib/paxmex/schema/field.rb', line 5

def start
  @start
end

#type ⇒ Object (readonly)

Returns the value of attribute type.



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# File 'lib/paxmex/schema/field.rb', line 5

def type
  @type
end

Instance Method Details

#parse(raw_value) ⇒ Object 



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# File 'lib/paxmex/schema/field.rb', line 14

def parse(raw_value)
  date_pattern = /^date\((.+)\)$/
  time_pattern = /^time\((.+)\)$/

  case type
  when 'string' then raw_value.rstrip
  when 'julian' then parse_julian_date(raw_value)
  when 'date' then Date.strptime(raw_value, '%m%d%Y')
  when 'numeric' then raw_value.strip.to_i
  when 'decimal' then parse_decimal(raw_value)
  when date_pattern then Date.strptime(raw_value, date_pattern.match(type).captures.first)
  when time_pattern then Time.strptime(raw_value, time_pattern.match(type).captures.first)
  else fail "Could not parse field type #{type}. Supported types: string, julian, date, numeric, decimal, date(format), time(format)"
  end
end

#parse_decimal(value) ⇒ Object 



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# File 'lib/paxmex/schema/field.rb', line 30

def parse_decimal(value)
  # fields _may_ end with a letter
  unless value.match(/^[0-9]*[0-9A-R{}]$/)
    fail "Unexpected value '#{value}' for field '#{name}'"
  end

  is_credit = !!(value =~ /[JKLMNOPQR}]/)
  value = value.gsub(/[ABCDEFGHIJKLMNOPQR{}]/,
    'A'=>1, 'B'=>2, 'C'=>3, 'D'=>4, 'E'=>5, 'F'=>6, 'G'=>7, 'H'=>8, 'I'=>9,
    'J'=>1, 'K'=>2, 'L'=>3, 'M'=>4, 'N'=>5, 'O'=>6, 'P'=>7, 'Q'=>8, 'R'=>9,
    '{'=>0, '}'=>0)

  parsed_value = value.to_i * (is_credit ? -1 : 1) / 100.0
  BigDecimal.new(parsed_value.to_s, 7)
end

#parse_julian_date(date_string) ⇒ Object 



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# File 'lib/paxmex/schema/field.rb', line 46

def parse_julian_date(date_string)
  Date.ordinal(date_string[0..3].to_i, date_string[4..6].to_i)
end