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This patch implements the plumbing to support dynamically loadable plugins for neutron versioned objects as per the spec [1]. Specifically a utility class is introduced as a generic plugin manager for stevedore based plugins in a given namespace. A global singleton instance of this plugin manager is then wrapped to provide access to neutron versioned objects. Using this implementation: - Neutron version object classes are registered as entry points. For example [2]. - Consumers can then use the object registry in neutron_lib to access them, for example [3]. As-is this change doesn't introduce any breakage risk; it's new functionality that no one is using. [1] I079d06502e6e7b1e20aea882979b0ecd9106eaeb [2] https://review.openstack.org/#/c/553836/ [3] https://review.openstack.org/#/c/553835/ Change-Id: I39d9bab1e24fbcbd5f9b3abf80560da920f1cf26
10 lines
518 B
YAML
10 lines
518 B
YAML
---
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features:
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- The ``neutron_lib.utils.runtime.NamespacedPlugins`` class is now available
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and wraps a stevedore namespace of plugins.
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- The ``neutron_lib.objects.registry`` module is now available for loading
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neutron versioned object classes registered as entry points with the
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``NEUTRON_OBJECT_NAMESPACE`` namespace therein. This global registry can
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be used by consumers to access references to neutron versioned object
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classes and instances so there's no need to import ``neutron.objects``.
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