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Versions: 20
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Contents
# frozen_string_literal: true
module Valkyrie::Storage
# Implements the DataMapper Pattern to store binary data in memory
#
# @note this adapter is used primarily for testing, and is not recommended
# in cases where you want to preserve real data
class Memory
attr_reader :cache
def initialize
@cache = {}
end
# @param file [IO]
# @param original_filename [String]
# @param resource [Valkyrie::Resource]
# @param _extra_arguments [Hash] additional arguments which may be passed to other adapters
# @return [Valkyrie::StorageAdapter::StreamFile]
def upload(file:, original_filename:, resource: nil, **_extra_arguments)
identifier = Valkyrie::ID.new("memory://#{resource.id}")
cache[identifier] = Valkyrie::StorageAdapter::StreamFile.new(id: identifier, io: file)
end
# Return the file associated with the given identifier
# @param id [Valkyrie::ID]
# @return [Valkyrie::StorageAdapter::StreamFile]
# @raise Valkyrie::StorageAdapter::FileNotFound if nothing is found
def find_by(id:)
raise Valkyrie::StorageAdapter::FileNotFound unless cache[id]
cache[id]
end
# @param id [Valkyrie::ID]
# @return [Boolean] true if this adapter can handle this type of identifer
def handles?(id:)
id.to_s.start_with?("memory://")
end
# Delete the file on disk associated with the given identifier.
# @param id [Valkyrie::ID]
def delete(id:)
cache.delete(id)
nil
end
end
end
Version data entries
20 entries across 20 versions & 1 rubygems