heat.engine.node_data module¶
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class
heat.engine.node_data.
NodeData
(primary_key, resource_name, uuid, reference_id, attributes, action, status)[source]¶ Bases:
object
Data about a node in the graph, to be passed along to other nodes.
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action
¶
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as_dict
()[source]¶ Return a dict representation of the data.
This is the format that is serialised and stored in the database’s SyncPoints.
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classmethod
from_dict
(node_data)[source]¶ Create a new NodeData object from deserialised data.
This reads the format that is stored in the database, and is the inverse of as_dict().
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name
¶
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primary_key
¶
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reference_id
()[source]¶ Return the reference ID of the resource.
i.e. the result that the {get_resource: } intrinsic function should return for this resource.
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status
¶
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uuid
¶
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heat.engine.node_data.
load_resources_data
(data)[source]¶ Return the data for all of the resources that meet at a SyncPoint.
The input is the input_data dict from a SyncPoint received over RPC. The keys (which are ignored) are resource primary keys.
The output is a dict of NodeData objects with the resource names as the keys.