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 get_rspec_version_string(self, rspec_version, options={}):
  31         version_string = "rspec_%s" % (rspec_version)
  32
  33         #panos adding the info option to the caching key (can be improved)
  34         if options.get('info'):
  35             version_string = version_string + "_"+options.get('info', 'default')
  36
  37         # Adding the list_leases option to the caching key
  38         if options.get('list_leases'):
  39             version_string = version_string + "_"+options.get('list_leases', 'default')
  40
  41         # Adding geni_available to caching key
  42         if options.get('geni_available'):
  43             version_string = version_string + "_" + str(options.get('geni_available'))
  44
  45         return version_string
  46
  47     def GetVersion(self, api, options):
  48         xrn=Xrn(api.hrn)
  49         version = version_core()
  50         version_generic = {
  51             'testbed': self.driver.testbed_name(),
  52             'interface':'aggregate',
  53             'hrn':xrn.get_hrn(),
  54             'urn':xrn.get_urn(),
  55             'geni_api': 3,
  56             'geni_api_versions': {'3': 'http://%s:%s' % (socket.gethostname(), api.config.sfa_aggregate_port)},
  57             'geni_single_allocation': 0, # Accept operations that act on as subset of slivers in a given state.
  58             'geni_allocate': 'geni_many',# Multiple slivers can exist and be incrementally added, including those which connect or overlap in some way.
  59             'geni_best_effort': 'true',
  60             'geni_credential_types': [{
  61                 'geni_type': 'geni_sfa',
  62                 'geni_version': 3,
  63             }],
  64         }
  65         version.update(version_generic)
  66         testbed_version = self.driver.aggregate_version()
  67         version.update(testbed_version)
  68         return version
  69
  70     def ListSlices(self, api, creds, options):
  71         call_id = options.get('call_id')
  72         if Callids().already_handled(call_id): return []
  73
  74         # look in cache first
  75         if self.driver.cache:
  76             slices = self.driver.cache.get('slices')
  77             if slices:
  78                 logger.debug("%s.list_slices returns from cache" % (self.driver.__module__))
  79                 return slices
  80
  81         # call driver
  82         slices = self.driver.list_slices(creds, options)
  83
  84         # cache the result
  85         if self.driver.cache:
  86             logger.debug ("%s.list_slices stores value in cache" % (self.driver.__module__))
  87             self.driver.cache.add('slices', instance_urns)
  88
  89         return self.driver.list_slices (creds, options)
  90
  91     def ListResources(self, api, creds, options):
  92         call_id = options.get('call_id')
  93         if Callids().already_handled(call_id): return ""
  94
  95         # get the rspec's return format from options
  96         version_manager = VersionManager()
  97         rspec_version = version_manager.get_version(options.get('geni_rspec_version'))
  98         version_string = self.get_rspec_version_string(rspec_version, options)
  99
 100         # look in cache first
 101         cached_requested = options.get('cached', True)
 102         if cached_requested and self.driver.cache and not slice_hrn:
 103             rspec = self.driver.cache.get(version_string)
 104             if rspec:
 105                 logger.debug("%s.ListResources returning cached advertisement" % (self.driver.__module__))
 106                 return rspec
 107
 108         rspec = self.driver.list_resources (version, options)
 109         if self.driver.cache:
 110             logger.debug("%s.ListResources stores advertisement in cache" % (self.driver.__module__))
 111             self.driver.cache.add(version_string, rspec)
 112         return rspec
 113
 114     def Describe(self, api, creds, urns, options):
 115         call_id = options.get('call_id')
 116         if Callids().already_handled(call_id): return ""
 117
 118         version_manager = VersionManager()
 119         rspec_version = version_manager.get_version(options.get('geni_rspec_version'))
 120         return self.driver.describe(urns, rspec_version, options)
 121
 122
 123     def Status (self, api, urns, options):
 124         call_id = options.get('call_id')
 125         if Callids().already_handled(call_id): return {}
 126         return self.driver.status (urns, options=options)
 127
 128
 129     def Allocate(self, api, xrn, creds, rspec_string, options):
 130         """
 131         Allocate resources as described in a request RSpec argument
 132         to a slice with the named URN.
 133         """
 134         call_id = options.get('call_id')
 135         if Callids().already_handled(call_id): return ""
 136         return self.driver.allocate(xrn, creds, rspec_string, options)
 137
 138     def Provision(self, api, xrns, options):
 139         """
 140         Create the sliver[s] (slice) at this aggregate.
 141         Verify HRN and initialize the slice record in PLC if necessary.
 142         """
 143         call_id = options.get('call_id')
 144         if Callids().already_handled(call_id): return ""
 145         return self.driver.provision(xrns, creds, options)
 146
 147     def Delete(self, api, xrns, options):
 148         call_id = options.get('call_id')
 149         if Callids().already_handled(call_id): return True
 150         return self.driver.delete_sliver (xrns, options)
 151
 152     def Renew(self, api, xrns, expiration_time, options):
 153         call_id = options.get('call_id')
 154         if Callids().already_handled(call_id): return True
 155         return self.driver.renew(xrns, expiration_time, options)
 156
 157     def GetTicket(self, api, xrn, creds, rspec, users, options):
 158
 159         xrn = Xrn(xrn)
 160         slice_urn=xrn.get_urn()
 161         slice_hrn=xrn.get_hrn()
 162
 163         return self.driver.get_ticket (slice_urn, slice_hrn, creds, rspec, options)
 164