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 Node
   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         network_elems = xml.xpath('//network')
  26         if len(network_elems) > 0:
  27             network_elem = network_elems[0]
  28         elif len(leases) > 0:
  29             network_urn = Xrn(leases[0]['component_id']).get_authority_urn().split(':')[0]
  30             network_elem = xml.add_element('network', name = network_urn)
  31         else:
  32             network_elem = xml
  33
  34         # group the leases by slice and timeslots
  35         grouped_leases = []
  36
  37         while leases:
  38              slice_id = leases[0]['slice_id']
  39              start_time = leases[0]['start_time']
  40              duration = leases[0]['duration']
  41              group = []
  42
  43              for lease in leases:
  44                   if slice_id == lease['slice_id'] and start_time == lease['start_time'] and duration == lease['duration']:
  45                       group.append(lease)
  46
  47              grouped_leases.append(group)
  48
  49              for lease1 in group:
  50                   leases.remove(lease1)
  51
  52         lease_elems = []
  53         for lease in grouped_leases:
  54             #lease_fields = ['lease_id', 'component_id', 'slice_id', 'start_time', 'duration']
  55             lease_fields = ['slice_id', 'start_time', 'duration']
  56             lease_elem = network_elem.add_instance('lease', lease[0], lease_fields)
  57             lease_elems.append(lease_elem)
  58
  59             # add nodes of this lease
  60             for node in lease:
  61                  lease_elem.add_instance('node', node, ['component_id'])
  62
  63
  64
  65 #        lease_elems = []
  66 #        for lease in leases:
  67 #            lease_fields = ['lease_id', 'component_id', 'slice_id', 'start_time', 'duration']
  68 #            lease_elem = network_elem.add_instance('lease', lease, lease_fields)
  69 #            lease_elems.append(lease_elem)
  70
  71
  72     @staticmethod
  73     def get_leases(xml, filter={}):
  74         xpath = '//lease%s | //default:lease%s' % (XpathFilter.xpath(filter), XpathFilter.xpath(filter))
  75         lease_elems = xml.xpath(xpath)
  76         return SFAv1Lease.get_lease_objs(lease_elems)
  77
  78     @staticmethod
  79     def get_lease_objs(lease_elems):
  80         leases = []
  81         for lease_elem in lease_elems:
  82             #get nodes
  83             node_elems = lease_elem.xpath('./default:node | ./node')
  84             for node_elem in node_elems:
  85                  lease = Lease(lease_elem.attrib, lease_elem)
  86                  lease['slice_id'] = lease_elem.attrib['slice_id']
  87                  lease['start_time'] = lease_elem.attrib['start_time']
  88                  lease['duration'] = lease_elem.attrib['duration']
  89                  lease['component_id'] = node_elem.attrib['component_id']
  90                  leases.append(lease)
  91
  92         return leases
  93
  94
  95
  96
  97
  98 #        leases = []
  99 #        for lease_elem in lease_elems:
 100 #            lease = Lease(lease_elem.attrib, lease_elem)
 101 #            if lease.get('lease_id'):
 102 #               lease['lease_id'] = lease_elem.attrib['lease_id']
 103 #            lease['component_id'] = lease_elem.attrib['component_id']
 104 #            lease['slice_id'] = lease_elem.attrib['slice_id']
 105 #            lease['start_time'] = lease_elem.attrib['start_time']
 106 #            lease['duration'] = lease_elem.attrib['duration']
 107
 108 #            leases.append(lease)
 109 #        return leases
 110