def self.ddl_validate(ddl, argument)
name = ddl.meta[:name]
query = ddl.entities[:data]
DDL.validation_fail!(:PLMC31, "No dataquery has been defined in the DDL for data plugin '%{plugin}'", :error, :plugin => name) unless query
input = query.fetch(:input, {})
output = query.fetch(:output, {})
DDL.validation_fail!(:PLMC32, "No output has been defined in the DDL for data plugin %{plugin}", :error, :plugin => name) if output.keys.empty?
if input[:query]
return true if argument.nil? && input[:query][:optional]
ddl.validate_input_argument(input, :query, argument)
else
DDL.validation_fail!(:PLMC33, "No data plugin argument was declared in the '%{plugin}' DDL but an input was supplied", :error, :plugin => name) if argument
return true
end
end