geni/aggregate.py

   1 import os
   2 import sys
   3 import datetime
   4 import time
   5 import xmlrpclib
   6
   7 from types import StringTypes, ListType
   8 from geni.util.geniserver import GeniServer
   9 from geni.util.geniclient import GeniClient
  10 from geni.util.storage import *
  11 from geni.util.excep import *
  12
  13 class Aggregate(GeniServer):
  14
  15     ##
  16     # Create a new aggregate object.
  17     #
  18     # @param ip the ip address to listen on
  19     # @param port the port to listen on
  20     # @param key_file private key filename of registry
  21     # @param cert_file certificate filename containing public key (could be a GID file)
  22
  23     def __init__(self, ip, port, key_file, cert_file, config = "/usr/share/geniwrapper/geni/util/geni_config"):
  24         GeniServer.__init__(self, ip, port, key_file, cert_file)
  25         self.server.interface = 'aggregate'
  26
  27 ##
  28 # Aggregates is a dictionary of geniclient aggregate connections keyed on the aggregate hrn
  29
  30 class Aggregates(dict):
  31
  32     def __init__(self, api):
  33         dict.__init__(self, {})
  34         self.api = api
  35         aggregates_file = self.api.server_basedir + os.sep + 'aggregates.xml'
  36         connection_dict = {'hrn': '', 'addr': '', 'port': ''}
  37         self.aggregate_info = XmlStorage(aggregates_file, {'aggregates': {'aggregate': [connection_dict]}})
  38         self.aggregate_info.load()
  39         self.connectAggregates()
  40
  41
  42     def connectAggregates(self):
  43         """
  44         Get connection details for the trusted peer aggregates from file and
  45         create an GeniClient connection to each.
  46         """
  47         required_fields = ['hrn', 'addr', 'port']
  48         aggregates = self.aggregate_info['aggregates']['aggregate']
  49         if isinstance(aggregates, dict):
  50             aggregates = [aggregates]
  51         if isinstance(aggregates, list):
  52             for aggregate in aggregates:
  53                 # create xmlrpc connection using GeniClient
  54                 if not set(required_fields).issubset(aggregate.keys()):
  55                     continue
  56                 hrn, address, port = aggregate['hrn'], aggregate['addr'], aggregate['port']
  57                 if not hrn or not address or not port:
  58                     continue
  59                 url = 'http://%(address)s:%(port)s' % locals()
  60                 self[hrn] = GeniClient(url, self.api.key_file, self.api.cert_file)
  61
  62         # set up a connection to the local registry
  63         # connect to registry using GeniClient
  64         address = self.api.config.GENI_AGGREGATE_HOSTNAME
  65         port = self.api.config.GENI_AGGREGATE_PORT
  66         url = 'http://%(address)s:%(port)s' % locals()
  67         self[self.api.hrn] = GeniClient(url, self.api.key_file, self.api.cert_file)
  68