Class: SayWhen::CronValue

Inherits:
Object
  • Object
show all
Defined in:
lib/say_when/cron_expression.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(p, min, max, exp) ⇒ CronValue

Returns a new instance of CronValue.



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# File 'lib/say_when/cron_expression.rb', line 124

def initialize(p, min, max, exp)
  self.part = p
  self.min = min
  self.max = max
  self.values = []
  self.expression = exp
  parse(exp)
end

Instance Attribute Details

#expression ⇒ Object

Returns the value of attribute expression.



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# File 'lib/say_when/cron_expression.rb', line 122

def expression
  @expression
end

#max ⇒ Object

Returns the value of attribute max.



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# File 'lib/say_when/cron_expression.rb', line 122

def max
  @max
end

#min ⇒ Object

Returns the value of attribute min.



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# File 'lib/say_when/cron_expression.rb', line 122

def min
  @min
end

#part ⇒ Object

Returns the value of attribute part.



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# File 'lib/say_when/cron_expression.rb', line 122

def part
  @part
end

#values ⇒ Object

Returns the value of attribute values.



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# File 'lib/say_when/cron_expression.rb', line 122

def values
  @values
end

Class Method Details

.parse_number(min, max, val) ⇒ Object

works for secs, mins, hours



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# File 'lib/say_when/cron_expression.rb', line 146

def self.parse_number(min, max, val)
  values = []
  case val
    #check for a '/' for increments
    when /(.+)\/(\d+)/
      (( $1 == "*") ? min : $1.to_i).step(max, $2.to_i) { |x| values << x }

    #check for ',' for list of values
    when /(\d+)(,\d+)+/
      values = val.split(',').map{ |v| v.to_i }.sort

    #check for '-' for range of values
    when /(\d+)-(\d+)/
      values = (($1.to_i)..($2.to_i)).to_a

    #check for '*' for all values between min and max
    when /^(\*)$/
      values = (min..max).to_a

    #lastly, should just be a number
    when /^(\d+)$/
      values << $1.to_i

    #if nothing else, leave values as []
    else values = []
  end
  values
end

Instance Method Details

#include?(date) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/say_when/cron_expression.rb', line 141

def include?(date)
  values.include?(date.send(part))
end

#parse(exp) ⇒ Object 



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# File 'lib/say_when/cron_expression.rb', line 133

def parse(exp)
  self.values = CronValue.parse_number(min, max, exp.upcase)
end

#to_s ⇒ Object 



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# File 'lib/say_when/cron_expression.rb', line 137

def to_s
  "[e:#{expression}, v:#{values.inspect}]\n"
end