Module: Samvera::Derivatives::FileLocator

Defined in:
lib/samvera/derivatives.rb

Overview

Note:

Ideally, this module would be part of Hyrax or Hydra::Derivatives

The purpose of this module is to find the derivative file path for a FileSet and a given derivative type (e.g. :thumbnail).

See Also:

Defined Under Namespace

Classes: Strategy

Class Method Summary collapse

Class Method Details

.call(file_set:, file_path:, derivative:) ⇒ Samvera::Derivatives::FromLocation

Note:

Why call? This allows for a simple lambda interface, which can greatly ease testing and composition.

This method is responsible for finding the correct file names for the given file set and derivative type.

Parameters:

Returns:

  • (Samvera::Derivatives::FromLocation) 


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# File 'lib/samvera/derivatives.rb', line 130

def self.call(file_set:, file_path:, derivative:)
  from_location = nil

  derivative.locators.each do |locator|
    from_location = locator.locate(
      file_set: file_set,
      file_path: file_path,
      derivative_type: derivative.type
    )
    break if from_location.present?
  end

  from_location
end