Class: RSlog::DataProcessing

Inherits:
Object
  • Object
show all
Defined in:
lib/rslog/data_processing.rb

Overview

Class to hold data_processing methods

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(source, conf) ⇒ DataProcessing

Returns a new instance of DataProcessing.



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# File 'lib/rslog/data_processing.rb', line 9

def initialize(source, conf)
  @calc      = conf.fetch(:calc) { proc }
  @separator = conf.fetch(:separator, ' ')
  @result = Array(source)
end

Instance Attribute Details

#result ⇒ Object (readonly)

Returns the value of attribute result.



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# File 'lib/rslog/data_processing.rb', line 7

def result
  @result
end

Instance Method Details

#calculate ⇒ Object

calculate



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# File 'lib/rslog/data_processing.rb', line 28

def calculate
  # calculate visits
  @result = @result.map { |url, visits| [url, @calc.call(visits)] }
  # calculate average
  # @result = @result.map { |url, visits_qty| [url, visits_qty, (visits_qty.to_f / _total)] }
  self
end

#extract ⇒ Object

extract



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# File 'lib/rslog/data_processing.rb', line 16

def extract
  @result = @result.map { |item| item.split(@separator) }
  self
end

#group ⇒ Object

group



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# File 'lib/rslog/data_processing.rb', line 22

def group
  @result = @result.group_by { |url, _visits| url }.to_a
  self
end

#order ⇒ Object

sort



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# File 'lib/rslog/data_processing.rb', line 37

def order
  @result = @result.sort_by { |_url, visits_by_page| visits_by_page }
  @result.reverse!
  self
end