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.. This work is a derivative of https://wiki.onap.org/display/DW/Modeling+Concepts#Concepts-1581473264
.. This work is licensed under a Creative Commons Attribution 4.0
.. International License. http://creativecommons.org/licenses/by/4.0
.. Copyright (C) 2020 Deutsche Telekom AG.
.. _data_type:
Data type
-------------------------------------
Represents the **schema** of a specific type of **data**.
Supports both **primitive** and **complex** data types:
.. list-table::
:widths: 50 50
:header-rows: 1
* - Primitive
- Complex
* - * string
* integer
* float
* double
* boolean
* timestamp
* null
- * json
* list
* array
For complex data type, an **entry schema** is required, defining the
type of value contained within the complex type, if list or array.
Users can **create** as many **data type** as needed.
.. note::
**Creating Custom Data Types:**
To create a custom data-type you can use a POST call to CDS endpoint:
"<cds-ip>:<cds-port>/api/v1/model-type"
.. code-block:: python
:caption: **Payload:**
{
"model-name": "<model-name>",
"derivedFrom": "tosca.datatypes.Root",
"definitionType": "data_type",
"definition": {
"description": "<description>",
"version": "<version-number: eg 1.0.0>",
"properties": {<add properties of your custom data type in JSON format>},
"derived_from": "tosca.datatypes.Root"
},
"description": "<description",
"version": "<version>",
"tags": "<model-name>,datatypes.Root.data_type",
"creationDate": "<creation timestamp>",
"updatedBy": "<name>"
}
Data type are useful to manipulate data during resource resolution.
They can be used to format the JSON output as needed.
List of existing data type:
`<https://github.com/onap/ccsdk-cds/tree/master/components/model-catalog/definition-type/starter-type/data_type>`_
`TOSCA specification
<http://docs.oasis-open.org/tosca/TOSCA-Simple-Profile-YAML/v1.2/csd01/TOSCA-Simple-Profile-YAML-v1.2-csd01.html#_Toc494454187>`_
**Below is a list of existing data types**
.. tabs::
.. tab:: resource-assignment
**datatype-resource-assignment**
Used to define entries within artifact-mapping-resource
(see tab Artifact Type -> artifact-mapping-resource)
That datatype represent a **resource** to be resolved. We also refer
this as an **instance of a data dictionary** as it's directly linked to
its definition.
.. list-table::
:widths: 50 50
:header-rows: 1
* - Property
- Description
* - property
- Defines how the resource looks like (see datatype-property on the right tab)
* - input-param
- Whether the resource can be provided as input.
* - dictionary-name
- Reference to the name of the data dictionary (see :ref:`data_dictionary`).
* - dictionary-source
- Reference the source to use to resolve the resource (see :ref:`resource source`).
* - dependencies
- List of dependencies required to resolve this resource.
* - updated-date
- Date when mapping was upload.
* - updated-by
- Name of the person that updated the mapping.
`<https://github.com/onap/ccsdk-cds/blob/master/components/model-catalog/definition-type/starter-type/data_type/datatype-resource-assignment.json>`_
.. code-block:: JSON
:caption: **datatype-resource-assignment**
{
"version": "1.0.0",
"description": "This is Resource Assignment Data Type",
"properties": {
"property": {
"required": true,
"type": "datatype-property"
},
"input-param": {
"required": true,
"type": "boolean"
},
"dictionary-name": {
"required": false,
"type": "string"
},
"dictionary-source": {
"required": false,
"type": "string"
},
"dependencies": {
"required": true,
"type": "list",
"entry_schema": {
"type": "string"
}
},
"updated-date": {
"required": false,
"type": "string"
},
"updated-by": {
"required": false,
"type": "string"
}
},
"derived_from": "tosca.datatypes.Root"
}
.. tab:: property
**datatype-property**
Used to defined the **property** entry of a **resource assignment**.
.. list-table::
:widths: 25 75
:header-rows: 1
* - Property
- Description
* - type
- Whether it's a primitive type, or a defined data-type
* - description
- Description of for the property
* - required
- Whether it's required or not
* - default
- If there is a default value to provide
* - entry_schema
- If the type is a complex one, such as list, define what is the type of element within the list.
`<https://github.com/onap/ccsdk-cds/blob/master/components/model-catalog/definition-type/starter-type/data_type/datatype-property.json>`_
.. code-block:: JSON
:caption: **datatype-property**
{
"version": "1.0.0",
"description": "This is Resource Assignment Data Type",
"properties": {
"property": {
"required": true,
"type": "datatype-property"
},
"input-param": {
"required": true,
"type": "boolean"
},
"dictionary-name": {
"required": false,
"type": "string"
},
"dictionary-source": {
"required": false,
"type": "string"
},
"dependencies": {
"required": true,
"type": "list",
"entry_schema": {
"type": "string"
}
},
"updated-date": {
"required": false,
"type": "string"
},
"updated-by": {
"required": false,
"type": "string"
}
},
"derived_from": "tosca.datatypes.Root"
}
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