Support for the property type 'null'

[Vaishnavi K . R]

Hi,


I tried using the property type 'null' in one of the properties of a node type.

And I didn't pass any value to the property in the respective node template.


When I tried storing the template, I get the following validation issues,


Storing service template null_test...
Validation issues:
  2: field "type" in 
"aria_extension_tosca.simple_v1_0.definitions.PropertyDefinition" is not a 
valid "str": None
     @"null.yaml":9:15
     ValueError: not a "unicode": None
  4: "type" refers to an unknown data type in "my_null_param": 'None'
     @"null.yaml":9:15
Failed to parse service template

I used the following service template,

tosca_definitions_version: tosca_simple_yaml_1_0

node_types:
  tosca.nodes.null:
    derived_from: tosca.nodes.Root
    properties:
      my_null_param:
        required: True
        type: null
      my_str_param:
        required: True
        type: string

topology_template:
  node_templates:
      test_node:
          type: tosca.nodes.null
          properties:
            my_null_param:
            my_str_param: hello


I had a look at the source code and found that 'null' is regarded as a 
primitive datatype.

As 'null' type also have a YAML specification that must be adhered, could that 
be handled as a separate datatype like 'timestamp' ?


And also is this a known issue? Does a JIRA exist for this?


Thanks,

/Vaish