Module: Entity::Identified

Defined in:
lib/scout/entity/identifiers.rb

Constant Summary collapse

NAMESPACE_TAG = 
'NAMESPACE'

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/scout/entity/identifiers.rb', line 11

def self.included(base)
  base.annotation :format
  base.annotation :namespace

  class << base
    attr_accessor :identifier_files, :formats, :default_format, :name_format, :description_format
  end

  base.property :to => :both do |target_format|

    target_format = case target_format
                    when :name
                      identity_type.name_format 
                    when :default
                      identity_type.default_format 
                    else
                      target_format
                    end

    if target_format == format
      self
    elsif Array === self
      self.annotate(identifier_index(target_format, self.format).values_at(*self))
    else
      self.annotate(identifier_index(target_format, self.format)[self])
    end.tap{|o| o.format = target_format unless o.nil? }
  end

  base.property :name => :both do
    to(:name)
  end

  base.property :default => :both do
    to(:default)
  end
end

Instance Method Details

#identifier_files ⇒ Object 



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# File 'lib/scout/entity/identifiers.rb', line 48

def identifier_files 
  files = identity_type.identifier_files.dup
  return [] if files.nil?
  files.collect!{|f| f.annotate f.gsub(/\b#{NAMESPACE_TAG}\b/, namespace.to_s) } if annotations.include? :namespace and self.namespace
  if files.select{|f| f =~ /\b#{NAMESPACE_TAG}\b/ }.any?
    Log.warn "Rejecting some identifier files for lack of 'namespace': " << files.select{|f| f =~ /\b#{NAMESPACE_TAG}\b/ } * ", "
  end
  files.reject!{|f| f =~ /\b#{NAMESPACE_TAG}\b/ } 
  files
end

#identifier_index(format = nil, source = nil) ⇒ Object 



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# File 'lib/scout/entity/identifiers.rb', line 63

def identifier_index(format = nil, source = nil)
  Persist.memory("Entity index #{identity_type}: #{format} (from #{source || "All"})", :persist => true, :format => format, :source => source) do
    source ||= self.respond_to?(:format)? self.format : nil

    begin
      index = TSV.translation_index(identifier_files, source, format, :persist => true)
      raise "No index from #{ Misc.fingerprint source } to #{ Misc.fingerprint format }: #{Misc.fingerprint identifier_files}" if index.nil?
      index.unnamed = true
      index
    rescue
      raise $! if source.nil?
      source = nil
      retry
    end
  end
end

#identity_type ⇒ Object 



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# File 'lib/scout/entity/identifiers.rb', line 59

def identity_type
  self.annotation_types.select{|m| m.include? Entity::Identified }.last
end