# unpack resource specific usage
# Reader - ADIwg JSON V1 to internal data structure

# History:
# 	Stan Smith 2013-11-25 original script
# 	Stan Smith 2013-11-27 modified to process a single resource usage
#   Stan Smith 2014-04-28 modified attribute names to match json schema 0.3.0
#   Stan Smith 2014-07-03 resolve require statements using Mdtranslator.reader_module

require ADIWG::Mdtranslator.reader_module('module_responsibleParty', $response[:readerVersionUsed])

module Adiwg_ResourceSpecificUsage

	def self.unpack(hUsage)

		# instance classes needed in script
		intMetadataClass = InternalMetadata.new
		intUsage = intMetadataClass.newDataUsage

		# resource specific usage - specific usage
		if hUsage.has_key?('specificUsage')
			s = hUsage['specificUsage']
			if s != ''
				intUsage[:specificUsage] = s
			end
		end

		# resource specific usage - user determined limitations
		if hUsage.has_key?('userDeterminedLimitation')
			s = hUsage['userDeterminedLimitation']
			if s != ''
				intUsage[:userLimits] = s
			end
		end

		# taxonomy - repository - responsible party
		if hUsage.has_key?('userContactInfo')
			aContacts = hUsage['userContactInfo']
			unless aContacts.empty?
				aContacts.each do |hContact|
					intUsage[:userContacts] << Adiwg_ResponsibleParty.unpack(hContact)
				end
			end
		end

		return intUsage

	end

end