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  • Committer: Salvatore Orlando
  • Date: 2011-06-24 13:52:17 UTC
  • mfrom: (6.1.14 quantum-trunk)
  • Revision ID: salvatore.orlando@eu.citrix.com-20110624135217-h6uz1zu3fxxpf3wt
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quantum/manager.py
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"""
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Quantum's Manager class is responsible for parsing a config file
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and instantiating the correct plugin that concretely implement
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quantum_plugin_base class
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Quantum's Manager class is responsible for parsing a config file and
 
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instantiating the correct plugin that concretely implement quantum_plugin_base
 
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class.
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The caller should make sure that QuantumManager is a singleton.
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"""
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import gettext
 
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import os
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gettext.install('quantum', unicode=1)
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import os
 
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from common import utils
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from quantum_plugin_base import QuantumPluginBase
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CONFIG_FILE = "quantum/plugins.ini"
 
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CONFIG_FILE = "plugins.ini"
 
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def find_config(basepath):
 
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    for root, dirs, files in os.walk(basepath):
 
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        if CONFIG_FILE in files:
 
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            return os.path.join(root, CONFIG_FILE)
 
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    return None
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class QuantumManager(object):
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    def __init__(self, config=CONFIG_FILE):
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        self.configuration_file = CONFIG_FILE
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        plugin_location = utils.getPluginFromConfig(CONFIG_FILE)
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        print "PLUGIN LOCATION:%s" % plugin_location
 
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    def __init__(self, config=None):
 
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        if config == None:
 
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            self.configuration_file = find_config(
 
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                os.path.abspath(os.path.dirname(__file__)))
 
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        else:
 
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            self.configuration_file = config
 
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        plugin_location = utils.getPluginFromConfig(self.configuration_file)
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        plugin_klass = utils.import_class(plugin_location)
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        if not issubclass(plugin_klass, QuantumPluginBase):
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            raise Exception("Configured Quantum plug-in " \
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    def get_manager(self):
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        return self.plugin
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# TODO(somik): rmove the main class
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# Added for temporary testing purposes
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def main():
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    manager = QuantumManager()
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    myManager = manager.get_manager()
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    myManager.get_all_networks("tesst")
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    #print("is a plugin")
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# Standard boilerplate to call the main() function.
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if __name__ == '__main__':
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    main()