Class: Kiba::Extend::Utils::FingerprintCreator

Inherits:

Object

• Object
• Kiba::Extend::Utils::FingerprintCreator

Defined in:

lib/kiba/extend/utils/fingerprint_creator.rb

Overview

Callable service to generate a fingerprint value from the given fields

Since:

• 2.7.1.65

Instance Method Summary

• #call(row) ⇒ Object
• #initialize(fields:, delim:) ⇒ FingerprintCreator constructor

  A new instance of FingerprintCreator.

Constructor Details

#initialize(fields:, delim:) ⇒ FingerprintCreator

Returns a new instance of FingerprintCreator.

Parameters:

• fields (Array<Symbol>) —

  fields used to build the fingerprint

• delim (String) —

  to separate field values when fields are joined for hashing

Since:

• 2.7.1.65

# File 'lib/kiba/extend/utils/fingerprint_creator.rb', line 15

def initialize(fields:, delim:)
  @fields = [fields].flatten
  @delim = delim
  @value_getter = Transforms::Helpers::FieldValueGetter.new(
    fields: fields, delim: delim, discard: []
  )
end

Instance Method Details

#call(row) ⇒ Object

Raises:

• (DelimInValueFingerprintError) —

  if any of the field values in the row contain the delim. This error is caught by Transforms::Fingerprint::Add and triggers raising of a more informative error to the user

Since:

• 2.7.1.65

# File 'lib/kiba/extend/utils/fingerprint_creator.rb', line 26

def call(row)
  values = value_getter.call(row).values
  check_values(values)

  Base64.strict_encode64(hashable_values(values).join(delim))
end