Class: AssetMapFromFile

Inherits:
Array
  • Object
show all
Defined in:
lib/datashift/mapping_file_definitions.rb

Overview

Expects file of format [TradeType,LDN_TradeId,HUB_TradeId,LDN_AssetId,HUB_AssetId,LDN_StrutureId,HUB_StructureId,LDN_ProductType,HUB_ProductType] Convets in to and araya containing rows [LDN_TradeId, LDN_AssetId, HUB_TradeId, HUB_AssetId]

Instance Method Summary collapse

Instance Method Details

#intialize(file_path, delim = ',') ⇒ Object 



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# File 'lib/datashift/mapping_file_definitions.rb', line 57

def intialize(file_path, delim = ',')
  @delegate_to = {}
  @delim = delim
  load_map(file_path)
end

#load_map(file_path = nil, delim = ',') ⇒ Object

Raises:



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# File 'lib/datashift/mapping_file_definitions.rb', line 63

def load_map(file_path = nil, delim = ',')
  @file = file_path unless file_path.nil?
  @delim = delim

  raise ArgumentError.new("Can not read asset map file: #{@file}") unless File.readable?(@file)

  File.open(@file).each_line do |line|
    next unless(line && line.chomp!)
    # skip the header row
    next if line.include?('TradeType')

    values = line.split(@delim)

    self.push(Array[values[1], values[3], values[2], values[4]])
  end

  return self
end

#write_map(file_path = nil, delim = ',') ⇒ Object 



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# File 'lib/datashift/mapping_file_definitions.rb', line 82

def write_map(file_path = nil, delim = ',')
  mapfile = File.open( file_path, 'w')

  self.each{|row| mapfile.write(row.join(delim)+"\n")}
end