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"""
Created on 2015-9-15
@author: y00228926
"""
import stevedore
class VswitchPluginManager(object):
def __init__(self):
self.plugin = None
self.mgr = stevedore.extension.ExtensionManager(namespace="vswitch.plugins", invoke_on_load=True)
def clean(self):
if self.plugin:
self.plugin.clean()
self.plugin = None
for plugin in self.mgr.names():
self.mgr[plugin].obj.clean()
return True
def get_vs_plugin(self, plugin):
if plugin in self.mgr.names():
ext = self.mgr[plugin]
self.plugin = ext.obj
return self.plugin
else:
raise Exception("unsupported vswitch plugin: %s" % plugin)
def get_supported_plugins(self):
return self.mgr.names()
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