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