Class: Uc3DmpId::Deleter

Inherits:
Object
  • Object
show all
Defined in:
lib/uc3-dmp-id/deleter.rb

Overview

Utility to Tombstone DMP ID’a

Class Method Summary collapse

Class Method Details

.tombstone(provenance:, p_key:, logger: nil) ⇒ Object

Delete/Tombstone a record in the table rubocop:disable Metrics/MethodLength, Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/PerceivedComplexity



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# File 'lib/uc3-dmp-id/deleter.rb', line 14

def tombstone(provenance:, p_key:, logger: nil)
  raise DeleterError, Helper::MSG_DMP_INVALID_DMP_ID unless p_key.is_a?(String) && !p_key.strip.empty?

  # Fail if the provenance is not defined
  raise DeleterError, Helper::MSG_DMP_FORBIDDEN unless provenance.is_a?(Hash) && !provenance['PK'].nil?

  # Fetch the latest version of the DMP ID by it's PK
  client = Uc3DmpDynamo::Client.new
  dmp = Finder.by_pk(p_key:, client:, cleanse: false, logger:)
  raise DeleterError, Helper::MSG_DMP_NOT_FOUND unless dmp.is_a?(Hash) && !dmp['dmp'].nil?

  # Only allow this if the provenance is the owner of the DMP!
  raise DeleterError, Helper::MSG_DMP_FORBIDDEN if dmp['dmp']['dmphub_provenance_id'] != provenance['PK']
  # Make sure they're not trying to update a historical copy of the DMP
  raise DeleterError, Helper::MSG_DMP_NO_HISTORICALS if dmp['dmp']['SK'] != Helper::DMP_LATEST_VERSION

  # Annotate the DMP ID
  dmp['dmp']['SK'] = Helper::DMP_TOMBSTONE_VERSION
  dmp['dmp']['title'] = "OBSOLETE: #{dmp['dmp']['title']}"
  logger.info(message: "Tombstoning DMP ID: #{p_key}") if logger.respond_to?(:debug)

  # Set the :modified timestamps
  now = Time.now.utc.iso8601
  dmp['dmp']['modified'] = now
  dmp['dmp']['dmphub_tombstoned_at'] = now

  # Create the Tombstone version
  resp = client.put_item(json: dmp['dmp'], logger:)
  raise DeleterError, Helper::MSG_DMP_NO_TOMBSTONE if resp.nil?

  # Delete the Latest version
  client.delete_item(p_key:, s_key: Helper::DMP_LATEST_VERSION, logger:)

  # TODO: We should do a check here to see if it was successful!

  # Notify EZID about the removal
  _post_process(json: dmp, logger:)

  # Return the tombstoned record
  Helper.cleanse_dmp_json(json: dmp)
rescue Aws::Errors::ServiceError => e
  logger.error(message: e.message, details: e.backtrace) if logger.respond_to?(:error)
  raise DeleterError, Helper::MSG_SERVER_ERROR
end