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={}):
  33         version_string = "rspec_%s" % (rspec_version)
  34
  35         #panos adding the info option to the caching key (can be improved)
  36         if options.get('info'):
  37             version_string = version_string + "_"+options.get('info', 'default')
  38
  39         # Adding the list_leases option to the caching key
  40         if options.get('list_leases'):
  41             version_string = version_string + "_"+options.get('list_leases', 'default')
  42
  43         # Adding geni_available to caching key
  44         if options.get('geni_available'):
  45             version_string = version_string + "_" + str(options.get('geni_available'))
  46
  47         return version_string
  48
  49     def GetVersion(self, api, options):
  50         xrn=Xrn(api.hrn, type='authority+am')
  51         version = version_core()
  52         cred_types = [{'geni_type': 'geni_sfa', 'geni_version': str(i)} for i in range(4)[-2:]]
  53         geni_api_versions = ApiVersions().get_versions()
  54         geni_api_versions['3'] = 'http://%s:%s' % (api.config.sfa_aggregate_host, api.config.sfa_aggregate_port)
  55         version_generic = {
  56             'testbed': api.driver.testbed_name(),
  57             'interface':'aggregate',
  58             'sfa': 3,
  59             'hrn':xrn.get_hrn(),
  60             'urn':xrn.get_urn(),
  61             'geni_api': 3,
  62             'geni_api_versions': geni_api_versions,
  63             'geni_single_allocation': 0, # Accept operations that act on as subset of slivers in a given state.
  64             'geni_allocate': 'geni_many',# Multiple slivers can exist and be incrementally added, including those which connect or overlap in some way.
  65             'geni_credential_types': cred_types,
  66         }
  67         version.update(version_generic)
  68         version.update(self.rspec_versions())
  69         testbed_version = api.driver.aggregate_version()
  70         version.update(testbed_version)
  71         return version
  72
  73     def ListResources(self, api, creds, options):
  74         call_id = options.get('call_id')
  75         if Callids().already_handled(call_id): return ""
  76
  77         # get the rspec's return format from options
  78         version_manager = VersionManager()
  79         rspec_version = version_manager.get_version(options.get('geni_rspec_version'))
  80         version_string = self.get_rspec_version_string(rspec_version, options)
  81
  82         # look in cache first
  83         cached_requested = options.get('cached', True)
  84         if cached_requested and api.driver.cache:
  85             rspec = api.driver.cache.get(version_string)
  86             if rspec:
  87                 logger.debug("%s.ListResources returning cached advertisement" % (api.driver.__module__))
  88                 return rspec
  89
  90         rspec = api.driver.list_resources (rspec_version, options)
  91         if api.driver.cache:
  92             logger.debug("%s.ListResources stores advertisement in cache" % (api.driver.__module__))
  93             api.driver.cache.add(version_string, rspec)
  94         return rspec
  95
  96     def Describe(self, api, creds, urns, options):
  97         call_id = options.get('call_id')
  98         if Callids().already_handled(call_id): return ""
  99
 100         version_manager = VersionManager()
 101         rspec_version = version_manager.get_version(options.get('geni_rspec_version'))
 102         return api.driver.describe(urns, rspec_version, options)
 103
 104
 105     def Status (self, api, urns, creds, options):
 106         call_id = options.get('call_id')
 107         if Callids().already_handled(call_id): return {}
 108         return api.driver.status (urns, options=options)
 109
 110
 111     def Allocate(self, api, xrn, creds, rspec_string, expiration, options):
 112         """
 113         Allocate resources as described in a request RSpec argument
 114         to a slice with the named URN.
 115         """
 116         call_id = options.get('call_id')
 117         if Callids().already_handled(call_id): return ""
 118         return api.driver.allocate(xrn, rspec_string, expiration, options)
 119
 120     def Provision(self, api, xrns, creds, options):
 121         """
 122         Create the sliver[s] (slice) at this aggregate.
 123         Verify HRN and initialize the slice record in PLC if necessary.
 124         """
 125         call_id = options.get('call_id')
 126         if Callids().already_handled(call_id): return ""
 127
 128         # make sure geni_rspec_version is specified in options
 129         if 'geni_rspec_version' not in options:
 130             msg = 'geni_rspec_version is required and must be set in options struct'
 131             raise SfaInvalidArgument(msg, 'geni_rspec_version')
 132         # make sure we support the requested rspec version
 133         version_manager = VersionManager()
 134         rspec_version = version_manager.get_version(options['geni_rspec_version'])
 135         if not rspec_version:
 136             raise InvalidRSpecVersion(options['geni_rspec_version'])
 137
 138         return api.driver.provision(xrns, options)
 139
 140     def Delete(self, api, xrns, creds, options):
 141         call_id = options.get('call_id')
 142         if Callids().already_handled(call_id): return True
 143         return api.driver.delete(xrns, options)
 144
 145     def Renew(self, api, xrns, creds, expiration_time, options):
 146         call_id = options.get('call_id')
 147         if Callids().already_handled(call_id): return True
 148
 149         # extend as long as possible
 150         if options.get('geni_extend_alap'):
 151             now = datetime.datetime.now()
 152             requested = utcparse(expiration_time)
 153             max = adjust_datetime(now, days=30)
 154             if requested > max:
 155                 expiration_time = max
 156
 157         return api.driver.renew(xrns, expiration_time, options)
 158
 159     def PerformOperationalAction(self, api, xrns, creds, action, options={}):
 160         call_id = options.get('call_id')
 161         if Callids().already_handled(call_id): return True
 162         return api.driver.perform_operational_action(xrns, action, options)
 163
 164     def Shutdown(self, api, xrn, creds, options={}):
 165         call_id = options.get('call_id')
 166         if Callids().already_handled(call_id): return True
 167         return api.driver.shutdown(xrn, options)
 168