2 # Registry is a GeniServer that implements the Registry interface
9 from geni.util.geniserver import GeniServer
10 from geni.util.geniclient import GeniClient
11 # GeniLight client support is optional
13 from egeni.geniLight_client import *
15 GeniClientLight = None
16 from geni.util.genitable import GeniTable
17 from geni.util.excep import *
18 from geni.util.storage import *
25 # Registry is a GeniServer that serves registry and slice operations at PLC.
27 class Registry(GeniServer):
29 # Create a new registry object.
31 # @param ip the ip address to listen on
32 # @param port the port to listen on
33 # @param key_file private key filename of registry
34 # @param cert_file certificate filename containing public key (could be a GID file)
36 def __init__(self, ip, port, key_file, cert_file, config = '/usr/share/geniwrapper/geni/util/geni_config'):
37 GeniServer.__init__(self, ip, port, key_file, cert_file)
38 self.server.interface = 'registry'
42 # Registries is a dictionary of geniclient registry connections keyed on the registry
45 class Registries(dict):
47 required_fields = ['hrn', 'addr', 'port']
49 def __init__(self, api):
50 dict.__init__(self, {})
52 registries_file = self.api.server_basedir + os.sep + 'registries.xml'
54 for field in self.required_fields:
55 connection_dict[field] = ''
56 self.registry_info = XmlStorage(registries_file, {'registries': {'registry': [connection_dict]}})
57 self.registry_info.load()
58 self.connectRegistries()
60 def connectRegistries(self):
62 Get connection details for the trusted peer registries from file and
63 create an GeniClient connection to each.
65 registries = self.registry_info['registries']['registry']
66 if isinstance(registries, dict):
67 registries = [registries]
68 if isinstance(registries, list):
69 for registry in registries:
70 # make sure the required fields are present
71 if not set(self.required_fields).issubset(registry.keys()):
73 hrn, address, port = registry['hrn'], registry['addr'], registry['port']
74 if not hrn or not address or not port:
77 # check which client we should use
78 # geniclient is default
79 client_type = 'geniclient'
80 if registry.has_key('client') and registry['client'] in ['geniclientlight']:
81 client_type = 'geniclientlight'
84 url = 'http://%(address)s:%(port)s' % locals()
86 # create the client connection
87 # make sure module exists before trying to instantiate it
88 if client_type in ['geniclientlight'] and GeniClientLight:
89 self[hrn] = GeniClientLight(url, self.api.key_file, self.api.cert_file)
91 self[hrn] = GeniClient(url, self.api.key_file, self.api.cert_file)
93 # set up a connection to the local registry
94 # connect to registry using GeniClient
95 address = self.api.config.GENI_REGISTRY_HOSTNAME
96 port = self.api.config.GENI_REGISTRY_PORT
97 url = 'http://%(address)s:%(port)s' % locals()
98 self[self.api.hrn] = GeniClient(url, self.api.key_file, self.api.cert_file)