sfa/managers/aggregate_manager.py

   1 import soctet
   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
   8 class AggregateManager:
   9
  10     def __init__ (self, config): pass
  11
  12     # essentially a union of the core version, the generic version (this code) and
  13     # whatever the driver needs to expose
  14
  15     def _rspec_versions(self):
  16         version_manager = VersionManager()
  17         ad_rspec_versions = []
  18         request_rspec_versions = []
  19         for rspec_version in version_manager.versions:
  20             if rspec_version.content_type in ['*', 'ad']:
  21                 ad_rspec_versions.append(rspec_version.to_dict())
  22             if rspec_version.content_type in ['*', 'request']:
  23                 request_rspec_versions.append(rspec_version.to_dict())
  24         return {
  25             'testbed':self.testbed_name(),
  26             'geni_request_rspec_versions': request_rspec_versions,
  27             'geni_ad_rspec_versions': ad_rspec_versions,
  28             }
  29
  30     def GetVersion(self, api, options):
  31         xrn=Xrn(api.hrn)
  32         version = version_core()
  33         version_generic = {
  34             'testbed': self.driver.testbed_name(),
  35             'interface':'aggregate',
  36             'hrn':xrn.get_hrn(),
  37             'urn':xrn.get_urn(),
  38             'geni_api': 3,
  39             'geni_api_versions': {'3': 'http://%s:%s' % (socket.gethostname(), api.config.sfa_aggregate_port)},
  40             'geni_single_allocation': 0, # Accept operations that act on as subset of slivers in a given state.
  41             'geni_allocate': 'geni_many',# Multiple slivers can exist and be incrementally added, including those which connect or overlap in some way.
  42             'geni_best_effort': 'true',
  43             'geni_credential_types': [{
  44                 'geni_type': 'geni_sfa',
  45                 'geni_version': 3,
  46             }],
  47         }
  48         version.update(version_generic)
  49         testbed_version = self.driver.aggregate_version()
  50         version.update(testbed_version)
  51         return version
  52
  53     def ListSlices(self, api, creds, options):
  54         call_id = options.get('call_id')
  55         if Callids().already_handled(call_id): return []
  56
  57         # look in cache first
  58         if self.driver.cache:
  59             slices = self.driver.cache.get('slices')
  60             if slices:
  61                 logger.debug("%s.list_slices returns from cache" % (self.driver.__module__))
  62                 return slices
  63
  64         # call driver
  65         slices = self.driver.list_slices(creds, options)
  66
  67         # cache the result
  68         if self.driver.cache:
  69             logger.debug ("%s.list_slices stores value in cache" % (self.driver.__module__))
  70             self.driver.cache.add('slices', instance_urns)
  71
  72         return self.driver.list_slices (creds, options)
  73
  74     def ListResources(self, api, creds, options):
  75         call_id = options.get('call_id')
  76         if Callids().already_handled(call_id): return ""
  77
  78         version_manager = VersionManager()
  79         # get the rspec's return format from options
  80         rspec_version = version_manager.get_version(options.get('geni_rspec_version'))
  81         version_string = "rspec_%s" % (rspec_version)
  82
  83         #panos adding the info option to the caching key (can be improved)
  84         if options.get('info'):
  85             version_string = version_string + "_"+options.get('info', 'default')
  86
  87         # Adding the list_leases option to the caching key
  88         if options.get('list_leases'):
  89             version_string = version_string + "_"+options.get('list_leases', 'default')
  90
  91         # Adding geni_available to caching key
  92         if options.get('geni_available'):
  93             version_string = version_string + "_" + str(options.get('geni_available'))
  94
  95         # look in cache first
  96         cached_requested = options.get('cached', True)
  97         if cached_requested and self.driver.cache and not slice_hrn:
  98             rspec = self.driver.cache.get(version_string)
  99             if rspec:
 100                 logger.debug("%s.ListResources returning cached advertisement" % (self.driver.__module__))
 101                 return rspec
 102
 103         rspec = self.driver.list_resources (creds, options)
 104         if self.driver.cache:
 105             logger.debug("%s.ListResources stores advertisement in cache" % (self.driver.__module__))
 106             self.driver.cache.add(version_string, rspec)
 107         return self.driver.list_resources (creds, options)
 108
 109     def Describe(self, api, creds, urns, options):
 110         call_id = options.get('call_id')
 111         if Callids().already_handled(call_id): return ""
 112
 113         return self.driver.describe (creds, urns, options)
 114
 115
 116     def SliverStatus (self, api, xrn, creds, options):
 117         call_id = options.get('call_id')
 118         if Callids().already_handled(call_id): return {}
 119
 120         xrn = Xrn(xrn,'slice')
 121         slice_urn=xrn.get_urn()
 122         slice_hrn=xrn.get_hrn()
 123         return self.driver.sliver_status (slice_urn, slice_hrn)
 124
 125     def CreateSliver(self, api, xrn, creds, rspec_string, users, options):
 126         """
 127         Create the sliver[s] (slice) at this aggregate.
 128         Verify HRN and initialize the slice record in PLC if necessary.
 129         """
 130         call_id = options.get('call_id')
 131         if Callids().already_handled(call_id): return ""
 132
 133         xrn = Xrn(xrn, 'slice')
 134         slice_urn=xrn.get_urn()
 135         slice_hrn=xrn.get_hrn()
 136
 137         return self.driver.create_sliver (slice_urn, slice_hrn, creds, rspec_string, users, options)
 138
 139     def DeleteSliver(self, api, xrn, creds, options):
 140         call_id = options.get('call_id')
 141         if Callids().already_handled(call_id): return True
 142
 143         xrn = Xrn(xrn, 'slice')
 144         slice_urn=xrn.get_urn()
 145         slice_hrn=xrn.get_hrn()
 146         return self.driver.delete_sliver (slice_urn, slice_hrn, creds, options)
 147
 148     def RenewSliver(self, api, xrn, creds, expiration_time, options):
 149         call_id = options.get('call_id')
 150         if Callids().already_handled(call_id): return True
 151
 152         xrn = Xrn(xrn, 'slice')
 153         slice_urn=xrn.get_urn()
 154         slice_hrn=xrn.get_hrn()
 155         return self.driver.renew_sliver (slice_urn, slice_hrn, creds, expiration_time, options)
 156
 157     ### these methods could use an options extension for at least call_id
 158     def start_slice(self, api, xrn, creds):
 159         xrn = Xrn(xrn)
 160         slice_urn=xrn.get_urn()
 161         slice_hrn=xrn.get_hrn()
 162         return self.driver.start_slice (slice_urn, slice_hrn, creds)
 163
 164     def stop_slice(self, api, xrn, creds):
 165         xrn = Xrn(xrn)
 166         slice_urn=xrn.get_urn()
 167         slice_hrn=xrn.get_hrn()
 168         return self.driver.stop_slice (slice_urn, slice_hrn, creds)
 169
 170     def reset_slice(self, api, xrn):
 171         xrn = Xrn(xrn)
 172         slice_urn=xrn.get_urn()
 173         slice_hrn=xrn.get_hrn()
 174         return self.driver.reset_slice (slice_urn, slice_hrn)
 175
 176     def GetTicket(self, api, xrn, creds, rspec, users, options):
 177
 178         xrn = Xrn(xrn)
 179         slice_urn=xrn.get_urn()
 180         slice_hrn=xrn.get_hrn()
 181
 182         return self.driver.get_ticket (slice_urn, slice_hrn, creds, rspec, options)
 183