Class: I2X::CSVDetector

Inherits:
Detector show all
Defined in:
lib/i2x/csvdetector.rb

Overview

CSVDetector

Detect changes in CSV files (using column numbers).

Instance Attribute Summary

Attributes inherited from Detector

#agent, #content, #identifier, #objects, #payloads, #templates

Instance Method Summary collapse

Methods inherited from Detector

#checkup, #initialize

Constructor Details

This class inherits a constructor from I2X::Detector

Instance Method Details

#detect(object) ⇒ Object

Detect the changes



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# File 'lib/i2x/csvdetector.rb', line 17

def detect object

  I2X::Config.log.debug(self.class.name) {"Monitoring #{object[:uri]}"}
  CSV.new(open(object[:uri]), :headers => :first_row).each do |row|
    begin
      unless object[:cache].nil? then
        @response = Cashier.verify row[object[:cache].to_i], object, row, object[:seed]            
      else
        @response = Cashier.verify row[0], object, row, object[:seed]
      end
    rescue Exception => e
      I2X::Config.log.error(self.class.name) {"Loading error: #{e}"}
    end

    begin

      # Process i2xcache response
      @cache = JSON.parse(@response, {:symbolize_names => true})
      unless @cache[:templates].nil? then
        @cache[:templates].each do |t|
          @templates.push t
        end
      end
      # The actual processing
      #
      if @cache[:cache][:status] == 100 then
        I2X::Config.log.info(self.class.name) {"Not on cache, generating payload"}
        
        payload = Hash.new
        
        object[:selectors].each do |selector|
          selector.each do |k,v|
            payload[k] = row[v.to_i]
          end
        end
        # add payload object to payloads list
        @payloads.push payload
      end

    rescue Exception => e
      I2X::Config.log.error(self.class.name) {"Processing error: #{e}"}
    end
    @cache[:templates]
  end
end