sfa/rspecs/sfa_rspec_converter.py

   1 #!/usr/bin/python
   2
   3 from lxml import etree
   4 from StringIO import StringIO
   5 from sfa.util.xrn import *
   6 from sfa.rspecs.rspec import RSpec
   7 from sfa.rspecs.version_manager import VersionManager
   8
   9 class SfaRSpecConverter:
  10
  11     @staticmethod
  12     def to_pg_rspec(rspec):
  13         if not isinstance(rspec, RSpec):
  14             sfa_rspec = RSpec(rspec)
  15         else:
  16             sfa_rspec = rspec
  17
  18         version_manager = VersionManager()
  19         pg_version = version_manager._get_version('protogeni', '2', 'request')
  20         pg_rspec = RSpec(version=pg_version)
  21
  22         # get networks
  23         networks = sfa_rspec.version.get_networks()
  24
  25         for network in networks:
  26             # get nodes
  27             sfa_node_elements = sfa_rspec.version.get_node_elements(network=network)
  28             for sfa_node_element in sfa_node_elements:
  29                 # create node element
  30                 node_attrs = {}
  31                 node_attrs['exclusive'] = 'false'
  32                 node_attrs['component_manager_id'] = network
  33                 if sfa_node_element.find('hostname') != None:
  34                     node_attrs['component_name'] = sfa_node_element.find('hostname').text
  35                 if sfa_node_element.find('urn') != None:
  36                     node_attrs['component_id'] = sfa_node_element.find('urn').text
  37                 node_element = pg_rspec.add_element('node', node_attrs)
  38
  39                 # create node_type element
  40                 for hw_type in ['plab-pc', 'pc']:
  41                     hdware_type_element = pg_rspec.add_element('hardware_type', {'name': hw_type}, parent=node_element)
  42                 # create available element
  43                 pg_rspec.add_element('available', {'now': 'true'}, parent=node_element)
  44                 # create locaiton element
  45                 # We don't actually associate nodes with a country.
  46                 # Set country to "unknown" until we figure out how to make
  47                 # sure this value is always accurate.
  48                 location = sfa_node_element.find('location')
  49                 if location != None:
  50                     location_attrs = {}
  51                     location_attrs['country'] =  location.get('country', 'unknown')
  52                     location_attrs['latitude'] = location.get('latitiue', 'None')
  53                     location_attrs['longitude'] = location.get('longitude', 'None')
  54                     pg_rspec.add_element('location', location_attrs, parent=node_element)
  55
  56                 sliver_element = sfa_node_element.find('sliver')
  57                 if sliver_element != None:
  58                     pg_rspec.add_element('sliver_type', {'name': 'planetlab-vnode'}, parent=node_element)
  59
  60         return pg_rspec.toxml()
  61
  62 if __name__ == '__main__':
  63     import sys
  64     if len(sys.argv) > 1:
  65         print SfaRSpecConverter.to_pg_rspec(sys.argv[1])