Class: Entitlements::Data::Groups::Cached

Inherits:
Object
  • Object
show all
Includes:
Contracts::Core
Defined in:
lib/entitlements.rb,
lib/entitlements/data/groups/cached.rb

Constant Summary collapse

C = 
::Contracts

Class Method Summary collapse

Methods included from Contracts::Core

common, extended, included

Class Method Details

.invalidate(dn) ⇒ Object 



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# File 'lib/entitlements/data/groups/cached.rb', line 70

def self.invalidate(dn)
  return unless Entitlements.cache[:predictive_state]
  Entitlements.cache[:predictive_state][:invalid].add(dn)
  nil
end

.load_caches(dir) ⇒ Object 



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# File 'lib/entitlements/data/groups/cached.rb', line 24

def self.load_caches(dir)
  unless File.directory?(dir)
    raise Errno::ENOENT, "Predictive state directory #{dir.inspect} does not exist!"
  end

  Entitlements.logger.debug "Loading predictive update caches from #{dir}"

  Entitlements.cache[:predictive_state] = { by_ou: {}, by_dn: {}, invalid: Set.new }

  Dir.glob(File.join(dir, "*")).each do |filename|
    dn = File.basename(filename)
    identifier, ou = dn.split(",", 2)

    file_lines = File.readlines(filename).map(&:strip).map(&:downcase).compact

    members = file_lines.dup
    members.reject! { |line| line.start_with?("#") }
    members.reject! { |line| line.start_with?("metadata_") }
    member_set = Set.new(members)

    metadata = file_lines.dup
    unless metadata.empty?
      metadata.select! { |line| line.start_with?("metadata_") }
      metadata = metadata.map { |metadata_string| metadata_string.split "=" }.to_h
      metadata.transform_keys! { |key| key.delete_prefix("metadata_") }
    end

    Entitlements.cache[:predictive_state][:by_ou][ou] ||= {}
    Entitlements.cache[:predictive_state][:by_ou][ou][identifier] = member_set
    Entitlements.cache[:predictive_state][:by_dn][dn] = { members: member_set, metadata: metadata }
  rescue => e
    raise "Failed to load predictive state cache file #{filename}: #{e.message}"
  end

  Entitlements.logger.debug "Loaded #{Entitlements.cache[:predictive_state][:by_ou].keys.size} OU(s) from cache"
  Entitlements.logger.debug "Loaded #{Entitlements.cache[:predictive_state][:by_dn].keys.size} DN(s) from cache"

  nil
end

.members(dn) ⇒ Object 



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# File 'lib/entitlements/data/groups/cached.rb', line 82

def self.members(dn)
  return unless Entitlements.cache[:predictive_state]

  if Entitlements.cache[:predictive_state][:invalid].member?(dn)
    Entitlements.logger.debug "members(#{dn}): DN has been marked invalid in cache"
    return
  end

  unless Entitlements.cache[:predictive_state][:by_dn].key?(dn)
    Entitlements.logger.debug "members(#{dn}): DN does not exist in cache"
    return
  end

  Entitlements.cache[:predictive_state][:by_dn][dn][:members]
end

.metadata(dn) ⇒ Object 



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# File 'lib/entitlements/data/groups/cached.rb', line 104

def self.metadata(dn)
  return unless Entitlements.cache[:predictive_state]

  if Entitlements.cache[:predictive_state][:invalid].member?(dn)
    Entitlements.logger.debug "metadata(#{dn}): DN has been marked invalid in cache"
    return
  end

  unless Entitlements.cache[:predictive_state][:by_dn].key?(dn)
    Entitlements.logger.debug "metadata(#{dn}): DN does not exist in cache"
    return
  end

  Entitlements.cache[:predictive_state][:by_dn][dn][:metadata]
end