sfa/rspecs/elements/versions/sfav1Lease.py

   1 from sfa.util.sfalogging import logger
   2 from sfa.util.xml import XpathFilter
   3 from sfa.util.xrn import Xrn
   4
   5 from sfa.rspecs.elements.element import Element
   6 from sfa.rspecs.elements.node import NodeElement
   7 from sfa.rspecs.elements.sliver import Sliver
   8 from sfa.rspecs.elements.location import Location
   9 from sfa.rspecs.elements.hardware_type import HardwareType
  10 from sfa.rspecs.elements.disk_image import DiskImage
  11 from sfa.rspecs.elements.interface import Interface
  12 from sfa.rspecs.elements.bwlimit import BWlimit
  13 from sfa.rspecs.elements.pltag import PLTag
  14 from sfa.rspecs.elements.versions.sfav1Sliver import SFAv1Sliver
  15 from sfa.rspecs.elements.versions.sfav1PLTag import SFAv1PLTag
  16 from sfa.rspecs.elements.versions.pgv2Services import PGv2Services
  17 from sfa.rspecs.elements.lease import Lease
  18
  19 from sfa.planetlab.plxrn import xrn_to_hostname
  20
  21 class SFAv1Lease:
  22
  23     @staticmethod
  24     def add_leases(xml, leases):
  25
  26         network_elems = xml.xpath('//network')
  27         if len(network_elems) > 0:
  28             network_elem = network_elems[0]
  29         elif len(leases) > 0:
  30             network_urn = Xrn(leases[0]['component_id']).get_authority_urn().split(':')[0]
  31             network_elem = xml.add_element('network', name = network_urn)
  32         else:
  33             network_elem = xml
  34
  35         lease_elems = []
  36         for lease in leases:
  37             lease_fields = ['lease_id', 'component_id', 'slice_id', 'start_time', 'duration']
  38             lease_elem = network_elem.add_instance('lease', lease, lease_fields)
  39             lease_elems.append(lease_elem)
  40
  41
  42     @staticmethod
  43     def get_leases(xml, filter={}):
  44         xpath = '//lease%s | //default:lease%s' % (XpathFilter.xpath(filter), XpathFilter.xpath(filter))
  45         lease_elems = xml.xpath(xpath)
  46         return SFAv1Lease.get_lease_objs(lease_elems)
  47
  48     @staticmethod
  49     def get_lease_objs(lease_elems):
  50         leases = []
  51         for lease_elem in lease_elems:
  52             lease = Lease(lease_elem.attrib, lease_elem)
  53             if lease.get('lease_id'):
  54                lease['lease_id'] = lease_elem.attrib['lease_id']
  55             lease['component_id'] = lease_elem.attrib['component_id']
  56             lease['slice_id'] = lease_elem.attrib['slice_id']
  57             lease['start_time'] = lease_elem.attrib['start_time']
  58             lease['duration'] = lease_elem.attrib['duration']
  59
  60             leases.append(lease)
  61         return leases
  62