    # File lib/chef/solr/solr_installer.rb, line 153
          def apply_hash(hash)
            hash.each do |key, value|
              method_for_key = "#{key}=".to_sym
              if respond_to?(method_for_key)
                send(method_for_key, value)
              else
                STDERR.puts("Configuration setting #{key} is unknown and will be ignored")
              end
            end
          end