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):
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, file = "/etc/geni/registries.xml"):
50 dict.__init__(self, {})
53 # create default connection dict
55 for field in self.required_fields:
56 connection_dict[field] = ''
57 registries_dict = {'registries': {'registry': [connection_dict]}}
59 # get possible config file locations
61 path = os.path.dirname(os.path.abspath(__file__))
62 filename = file.split(os.sep)[-1]
63 alt_file = path + os.sep + filename
64 files = [file, alt_file]
69 self.registry_info = XmlStorage(f, registries_dict)
73 # if file is missing, just recreate it in the right place
75 self.registry_info = XmlStorage(file, registries_dict)
76 self.registry_info.load()
77 self.connectRegistries()
79 def connectRegistries(self):
81 Get connection details for the trusted peer registries from file and
82 create an GeniClient connection to each.
84 registries = self.registry_info['registries']['registry']
85 if isinstance(registries, dict):
86 registries = [registries]
87 if isinstance(registries, list):
88 for registry in registries:
89 # make sure the required fields are present
90 if not set(self.required_fields).issubset(registry.keys()):
92 hrn, address, port = registry['hrn'], registry['addr'], registry['port']
93 if not hrn or not address or not port:
96 # check which client we should use
97 # geniclient is default
98 client_type = 'geniclient'
99 if registry.has_key('client') and registry['client'] in ['geniclientlight']:
100 client_type = 'geniclientlight'
103 url = 'http://%(address)s:%(port)s' % locals()
105 # create the client connection
106 # make sure module exists before trying to instantiate it
107 if client_type in ['geniclientlight'] and GeniClientLight:
108 self[hrn] = GeniClientLight(url, self.api.key_file, self.api.cert_file)
110 self[hrn] = GeniClient(url, self.api.key_file, self.api.cert_file)
112 # set up a connection to the local registry
113 # connect to registry using GeniClient
114 address = self.api.config.GENI_REGISTRY_HOST
115 port = self.api.config.GENI_REGISTRY_PORT
116 url = 'http://%(address)s:%(port)s' % locals()
117 self[self.api.hrn] = GeniClient(url, self.api.key_file, self.api.cert_file)