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 from sfa.rspecs.rspec import RSpec
   8
   9 class Aggregate:
  10
  11     api = None
  12     sites = {}
  13     nodes = {}
  14     interfaces = {}
  15     links = {}
  16     node_tags = {}
  17     pl_initscripts = {}
  18     prepared=False
  19     #panos new user options variable
  20     user_options = {}
  21
  22     def __init__(self, api, user_options={}):
  23         self.api = api
  24         self.user_options = user_options
  25
  26     def prepare_sites(self, force=False):
  27         if not self.sites or force:
  28             for site in self.api.plshell.GetSites(self.api.plauth):
  29                 self.sites[site['site_id']] = site
  30
  31     def prepare_nodes(self, force=False):
  32         if not self.nodes or force:
  33             for node in self.api.plshell.GetNodes(self.api.plauth, {'peer_id': None}):
  34                 self.nodes[node['node_id']] = node
  35
  36     def prepare_interfaces(self, force=False):
  37         if not self.interfaces or force:
  38             for interface in self.api.plshell.GetInterfaces(self.api.plauth):
  39                 self.interfaces[interface['interface_id']] = interface
  40
  41     def prepare_links(self, force=False):
  42         if not self.links or force:
  43             pass
  44
  45     def prepare_node_tags(self, force=False):
  46         if not self.node_tags or force:
  47             for node_tag in self.api.plshell.GetNodeTags(self.api.plauth):
  48                 self.node_tags[node_tag['node_tag_id']] = node_tag
  49
  50     def prepare_pl_initscripts(self, force=False):
  51         if not self.pl_initscripts or force:
  52             for initscript in self.api.plshell.GetInitScripts(self.api.plauth, {'enabled': True}):
  53                 self.pl_initscripts[initscript['initscript_id']] = initscript
  54
  55     def prepare(self, force=False):
  56         if not self.prepared or force:
  57             self.prepare_sites(force)
  58             self.prepare_nodes(force)
  59             self.prepare_interfaces(force)
  60             self.prepare_links(force)
  61             self.prepare_node_tags(force)
  62             self.prepare_pl_initscripts()
  63             # add site/interface info to nodes
  64             for node_id in self.nodes:
  65                 node = self.nodes[node_id]
  66                 site = self.sites[node['site_id']]
  67                 interfaces = [self.interfaces[interface_id] for interface_id in node['interface_ids']]
  68                 tags = [self.node_tags[tag_id] for tag_id in node['node_tag_ids']]
  69                 node['network'] = self.api.hrn
  70                 node['network_urn'] = hrn_to_urn(self.api.hrn, 'authority+am')
  71                 node['urn'] = hostname_to_urn(self.api.hrn, site['login_base'], node['hostname'])
  72                 node['site_urn'] = hrn_to_urn(PlXrn.site_hrn(self.api.hrn, site['login_base']), 'authority+sa')
  73                 node['site'] = site
  74                 node['interfaces'] = interfaces
  75                 node['tags'] = tags
  76
  77         self.prepared = True
  78
  79     def get_rspec(self, slice_xrn=None, version = None):
  80         self.prepare()
  81         rspec = RSpec(version=version, user_options=self.user_options)
  82         # get slice details if specified
  83         slice = None
  84         if slice_xrn:
  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
  91         # filter out nodes with a whitelist:
  92         valid_nodes = []
  93         for node in self.nodes.values():
  94             # only doing this becuase protogeni rspec needs
  95             # to advertise available initscripts
  96             node['pl_initscripts'] = self.pl_initscripts
  97
  98             if slice and node['node_id'] in slice['node_ids']:
  99                 valid_nodes.append(node)
 100             elif slice and slice['slice_id'] in node['slice_ids_whitelist']:
 101                 valid_nodes.append(node)
 102             elif not slice and not node['slice_ids_whitelist']:
 103                 valid_nodes.append(node)
 104
 105         rspec.version.add_nodes(valid_nodes)
 106         rspec.version.add_interfaces(self.interfaces.values())
 107         rspec.version.add_links(self.links.values())
 108
 109         # add slivers
 110         if slice_xrn and slice:
 111             slivers = []
 112             tags = self.api.plshell.GetSliceTags(self.api.plauth, slice['slice_tag_ids'])
 113
 114             # add default tags
 115             for tag in tags:
 116                 # if tag isn't bound to a node then it applies to all slivers
 117                 # and belongs in the <sliver_defaults> tag
 118                 if not tag['node_id']:
 119                     rspec.version.add_default_sliver_attribute(tag['tagname'], tag['value'], self.api.hrn)
 120
 121             for node_id in slice['node_ids']:
 122                 try:
 123                     sliver = {}
 124                     sliver['hostname'] = self.nodes[node_id]['hostname']
 125                     sliver['node_id'] = node_id
 126                     sliver['slice_id'] = slice['slice_id']
 127                     sliver['tags'] = []
 128                     slivers.append(sliver)
 129
 130                     # add tags for this node only
 131                     for tag in tags:
 132                         if tag['node_id'] and (tag['node_id'] == node_id):
 133                             sliver['tags'].append(tag)
 134                 except:
 135                     self.api.logger.log_exc('unable to add sliver %s to node %s' % (slice['name'], node_id))
 136             rspec.version.add_slivers(slivers, sliver_urn=slice_xrn)
 137
 138         return rspec.toxml()