sfa/managers/aggregate_manager.py

   1 import socket
   2 from sfa.rspecs.version_manager import VersionManager
   3 from sfa.util.version import version_core
   4 from sfa.util.xrn import Xrn
   5 from sfa.util.callids import Callids
   6 from sfa.util.sfalogging import logger
   7 from sfa.util.faults import SfaInvalidArgument, InvalidRSpecVersion
   8 from sfa.server.api_versions import ApiVersions
   9
  10
  11 class AggregateManager:
  12
  13     def __init__ (self, config): pass
  14
  15     # essentially a union of the core version, the generic version (this code) and
  16     # whatever the driver needs to expose
  17
  18     def rspec_versions(self):
  19         version_manager = VersionManager()
  20         ad_rspec_versions = []
  21         request_rspec_versions = []
  22         for rspec_version in version_manager.versions:
  23             if rspec_version.content_type in ['*', 'ad']:
  24                 ad_rspec_versions.append(rspec_version.to_dict())
  25             if rspec_version.content_type in ['*', 'request']:
  26                 request_rspec_versions.append(rspec_version.to_dict())
  27         return {
  28             'geni_request_rspec_versions': request_rspec_versions,
  29             'geni_ad_rspec_versions': ad_rspec_versions,
  30             }
  31
  32     def get_rspec_version_string(self, rspec_version, options=None):
  33         if options is None: options={}
  34         version_string = "rspec_%s" % (rspec_version)
  35
  36         #panos adding the info option to the caching key (can be improved)
  37         if options.get('info'):
  38             version_string = version_string + "_"+options.get('info', 'default')
  39
  40         # Adding the list_leases option to the caching key
  41         if options.get('list_leases'):
  42             version_string = version_string + "_"+options.get('list_leases', 'default')
  43
  44         # Adding geni_available to caching key
  45         if options.get('geni_available'):
  46             version_string = version_string + "_" + str(options.get('geni_available'))
  47
  48         return version_string
  49
  50     def GetVersion(self, api, options):
  51         xrn=Xrn(api.hrn, type='authority+am')
  52         version = version_core()
  53         cred_types = [{'geni_type': 'geni_sfa', 'geni_version': str(i)} for i in range(4)[-2:]]
  54         geni_api_versions = ApiVersions().get_versions()
  55         geni_api_versions['3'] = 'http://%s:%s' % (api.config.sfa_aggregate_host, api.config.sfa_aggregate_port)
  56         version_generic = {
  57             'testbed': api.driver.testbed_name(),
  58             'interface':'aggregate',
  59             'sfa': 3,
  60             'hrn':xrn.get_hrn(),
  61             'urn':xrn.get_urn(),
  62             'geni_api': 3,
  63             'geni_api_versions': geni_api_versions,
  64             'geni_single_allocation': 0, # Accept operations that act on as subset of slivers in a given state.
  65             'geni_allocate': 'geni_many',# Multiple slivers can exist and be incrementally added, including those which connect or overlap in some way.
  66             'geni_credential_types': cred_types,
  67             'geni_handles_speaksfor': True,     # supports 'speaks for' credentials
  68         }
  69         version.update(version_generic)
  70         version.update(self.rspec_versions())
  71         testbed_version = api.driver.aggregate_version()
  72         version.update(testbed_version)
  73         return version
  74
  75     def ListResources(self, api, creds, options):
  76         call_id = options.get('call_id')
  77         if Callids().already_handled(call_id): return ""
  78
  79         # get the rspec's return format from options
  80         version_manager = VersionManager()
  81         rspec_version = version_manager.get_version(options.get('geni_rspec_version'))
  82         version_string = self.get_rspec_version_string(rspec_version, options)
  83
  84         # look in cache first
  85         cached_requested = options.get('cached', True)
  86         if cached_requested and api.driver.cache:
  87             rspec = api.driver.cache.get(version_string)
  88             if rspec:
  89                 logger.debug("%s.ListResources returning cached advertisement" % (api.driver.__module__))
  90                 return rspec
  91
  92         rspec = api.driver.list_resources (rspec_version, options)
  93         if api.driver.cache:
  94             logger.debug("%s.ListResources stores advertisement in cache" % (api.driver.__module__))
  95             api.driver.cache.add(version_string, rspec)
  96         return rspec
  97
  98     def Describe(self, api, creds, urns, options):
  99         call_id = options.get('call_id')
 100         if Callids().already_handled(call_id): return ""
 101
 102         version_manager = VersionManager()
 103         rspec_version = version_manager.get_version(options.get('geni_rspec_version'))
 104         return api.driver.describe(urns, rspec_version, options)
 105
 106
 107     def Status (self, api, urns, creds, options):
 108         call_id = options.get('call_id')
 109         if Callids().already_handled(call_id): return {}
 110         return api.driver.status (urns, options=options)
 111
 112
 113     def Allocate(self, api, xrn, creds, rspec_string, expiration, options):
 114         """
 115         Allocate resources as described in a request RSpec argument
 116         to a slice with the named URN.
 117         """
 118         call_id = options.get('call_id')
 119         if Callids().already_handled(call_id): return ""
 120         return api.driver.allocate(xrn, rspec_string, expiration, options)
 121
 122     def Provision(self, api, xrns, creds, options):
 123         """
 124         Create the sliver[s] (slice) at this aggregate.
 125         Verify HRN and initialize the slice record in PLC if necessary.
 126         """
 127         call_id = options.get('call_id')
 128         if Callids().already_handled(call_id): return ""
 129
 130         # make sure geni_rspec_version is specified in options
 131         if 'geni_rspec_version' not in options:
 132             msg = 'geni_rspec_version is required and must be set in options struct'
 133             raise SfaInvalidArgument(msg, 'geni_rspec_version')
 134         # make sure we support the requested rspec version
 135         version_manager = VersionManager()
 136         rspec_version = version_manager.get_version(options['geni_rspec_version'])
 137         if not rspec_version:
 138             raise InvalidRSpecVersion(options['geni_rspec_version'])
 139
 140         return api.driver.provision(xrns, options)
 141
 142     def Delete(self, api, xrns, creds, options):
 143         call_id = options.get('call_id')
 144         if Callids().already_handled(call_id): return True
 145         return api.driver.delete(xrns, options)
 146
 147     def Renew(self, api, xrns, creds, expiration_time, options):
 148         call_id = options.get('call_id')
 149         if Callids().already_handled(call_id): return True
 150
 151         return api.driver.renew(xrns, expiration_time, options)
 152
 153     def PerformOperationalAction(self, api, xrns, creds, action, options=None):
 154         if options is None: options={}
 155         call_id = options.get('call_id')
 156         if Callids().already_handled(call_id): return True
 157         return api.driver.perform_operational_action(xrns, action, options)
 158
 159     def Shutdown(self, api, xrn, creds, options=None):
 160         if options is None: options={}
 161         call_id = options.get('call_id')
 162         if Callids().already_handled(call_id): return True
 163         return api.driver.shutdown(xrn, options)
 164