Class: Pubid::Easc::UrnGenerator

Inherits:
Object
  • Object
show all
Defined in:
lib/pubid/easc/urn_generator.rb

Overview

Generates URN strings for EASC identifiers.

Format:

urn:easc:<series>[:<variant>]:<number>[:<year>]

Examples:

urn:easc:pmg:3:2025
urn:easc:pmg:v:31:2001
urn:easc:rmg:151:2025

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(identifier) ⇒ UrnGenerator

Returns a new instance of UrnGenerator.



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# File 'lib/pubid/easc/urn_generator.rb', line 17

def initialize(identifier)
  @identifier = identifier
end

Instance Attribute Details

#identifier ⇒ Object (readonly)

Returns the value of attribute identifier.



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# File 'lib/pubid/easc/urn_generator.rb', line 15

def identifier
  @identifier
end

Instance Method Details

#generate ⇒ Object 



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# File 'lib/pubid/easc/urn_generator.rb', line 21

def generate
  unless identifier.is_a?(Identifiers::Pmg) ||
         identifier.is_a?(Identifiers::Rmg)
    raise ArgumentError,
          "Unknown EASC identifier class: #{identifier.class}"
  end

  parts = ["urn:easc", series_lower]
  parts << variant_lower if identifier.variant
  parts << identifier.number.to_s
  parts << identifier.year.to_s if identifier.year
  parts.join(":")
end