sfa/plc/aggregate.py

   1 #!/usr/bin/python
   2 from sfa.util.xrn import *
   3 from sfa.util.plxrn import *
   4 from sfa.rspecs.sfa_rspec import SfaRSpec
   5 from sfa.rspecs.pg_rspec  import PGRSpec
   6 from sfa.rspecs.rspec_version import RSpecVersion
   7
   8 class Aggregate:
   9
  10     api = None
  11     sites = {}
  12     nodes = {}
  13     interfaces = {}
  14     links = {}
  15     node_tags = {}
  16     prepared=False
  17
  18     def __init__(self, api):
  19         self.api = api
  20
  21     def prepare_sites(self, force=False):
  22         if not self.sites or force:
  23             for site in self.api.plshell.GetSites(self.api.plauth):
  24                 self.sites[site['site_id']] = site
  25
  26     def prepare_nodes(self, force=False):
  27         if not self.nodes or force:
  28             for node in self.api.plshell.GetNodes(self.api.plauth):
  29                 self.nodes[node['node_id']] = node
  30
  31     def prepare_interfaces(self, force=False):
  32         if not self.interfaces or force:
  33             for interface in self.api.plshell.GetInterfaces(self.api.plauth):
  34                 self.interfaces[interface['interface_id']] = interface
  35
  36     def prepare_links(self, force=False):
  37         if not self.links or force:
  38             pass
  39
  40     def prepare_node_tags(self, force=False):
  41         if not self.node_tags or force:
  42             for node_tag in self.api.plshell.GetNodeTags(self.api.plauth):
  43                 self.node_tags[node_tag['node_tag_id']] = node_tag
  44
  45     def prepare(self, force=False):
  46         if not self.prepared or force:
  47             self.prepare_sites(force)
  48             self.prepare_nodes(force)
  49             self.prepare_interfaces(force)
  50             self.prepare_links(force)
  51             self.prepare_node_tags(force)
  52             # add site/interface info to nodes
  53             for node_id in self.nodes:
  54                 node = self.nodes[node_id]
  55                 site = self.sites[node['site_id']]
  56                 interfaces = [self.interfaces[interface_id] for interface_id in node['interface_ids']]
  57                 tags = [self.node_tags[tag_id] for tag_id in node['node_tag_ids']]
  58                 node['network'] = self.api.hrn
  59                 node['network_urn'] = hrn_to_urn(self.api.hrn, 'authority+sa')
  60                 node['urn'] = hostname_to_urn(self.api.hrn, site['login_base'], node['hostname'])
  61                 node['site_urn'] = hrn_to_urn(PlXrn.site_hrn(self.api.hrn, site['login_base']), 'authority')
  62                 node['site'] = site
  63                 node['interfaces'] = interfaces
  64                 node['tags'] = tags
  65
  66         self.prepared = True
  67
  68     def get_rspec(self, slice_xrn=None, version = None):
  69         self.prepare()
  70         rspec = None
  71         rspec_version = RSpecVersion(version)
  72         if rspec_version['type'].lower() == 'protogeni':
  73             rspec = PGRSpec()
  74         elif rspec_version['type'].lower() == 'sfa':
  75             rspec = SfaRSpec()
  76         else:
  77             rspec = SfaRSpec()
  78
  79         rspec.add_nodes(self.nodes.values())
  80         rspec.add_interfaces(self.interfaces.values())
  81         rspec.add_links(self.links.values())
  82
  83         if slice_xrn:
  84             # get slice details
  85             slice_hrn, _ = urn_to_hrn(slice_xrn)
  86             slice_name = hrn_to_pl_slicename(slice_hrn)
  87             slices = self.api.plshell.GetSlices(self.api.plauth, slice_name)
  88             if slices:
  89                 slice = slices[0]
  90                 slivers = []
  91                 tags = self.api.plshell.GetSliceTags(self.api.plauth, slice['slice_tag_ids'])
  92                 for node_id in slice['node_ids']:
  93                     sliver = {}
  94                     sliver['hostname'] = self.nodes[node_id]['hostname']
  95                     sliver['tags'] = []
  96                     for tag in tags:
  97                         # if tag isn't bound to a node then it applies to all slivers
  98                         if not tag['node_id']:
  99                             sliver['tags'].append(tag)
 100                         else:
 101                             tag_host = self.nodes[tag['node_id']]['hostname']
 102                             if tag_host == sliver['hostname']:
 103                                 sliver.tags.append(tag)
 104                 rspec.add_slivers(slivers)
 105
 106         return rspec.toxml()