Sha256: 7639d882d78455a7ae072f3a37115394cdce9fe04c5f54d386afd6d2d06aff75
Contents?: true
Size: 1.18 KB
Versions: 9
Compression:
Stored size: 1.18 KB
Contents
module Tdc
module DefinitionResolvers
#
# Knows how to resolve the tag value for the specified instance_definition key by replacing it
# with an object sourced from the current catalog.
#
class TagResolver < Tdc::DefinitionResolvers::DefinitionResolver
attr_reader :key, :source
def initialize(key:, source:)
super()
@key = key
@source = source
end
def resolve(instance_definition)
return unless instance_definition.key?(key)
# Lookup the source catalog entry in the current_catalog.
catalog_entry = instance_eval("current_catalog.#{source}", __FILE__, __LINE__)
# Before resolution the instance definition value is a tag.
tag = instance_definition[key]
# Use the tag to source an object from the current catalog.
sourced_object = catalog_entry.send(tag)
unless sourced_object
message = "Could not find a tag reference for '#{key}' in the catalog entries provided."
raise Tdc::FatalError, message
end
# Replace the tag value with the sourced object.
instance_definition[key] = sourced_object
end
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems