sfa/rspecs/elements/versions/iotlabv1Lease.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.versions.sfav1PLTag import SFAv1PLTag
   6 #from sfa.rspecs.elements.versions.pgv2Services import PGv2Services
   7 from sfa.rspecs.elements.lease import Lease
   8
   9
  10
  11 class Iotlabv1Lease:
  12
  13     @staticmethod
  14     def add_leases(xml, leases):
  15
  16         network_elems = xml.xpath('//network')
  17         if len(network_elems) > 0:
  18             network_elem = network_elems[0]
  19         elif len(leases) > 0:
  20             network_urn = Xrn(leases[0]['component_id']).get_authority_urn().split(':')[0]
  21             network_elem = xml.add_element('network', name = network_urn)
  22         else:
  23             network_elem = xml
  24
  25         lease_elems = []
  26         for lease in leases:
  27
  28             lease_fields = ['lease_id', 'component_id', 'slice_id', 'start_time', 'duration']
  29             lease_elem = network_elem.add_instance('lease', lease, lease_fields)
  30             lease_elems.append(lease_elem)
  31
  32
  33     @staticmethod
  34     def get_leases(xml, filter={}):
  35         xpath = '//lease%s | //default:lease%s' % (XpathFilter.xpath(filter), XpathFilter.xpath(filter))
  36         lease_elems = xml.xpath(xpath)
  37         return Iotlabv1Lease.get_lease_objs(lease_elems)
  38
  39     @staticmethod
  40     def get_lease_objs(lease_elems):
  41         leases = []
  42         for lease_elem in lease_elems:
  43             #get nodes
  44             node_elems = lease_elem.xpath('./default:node | ./node')
  45             for node_elem in node_elems:
  46                  lease = Lease(lease_elem.attrib, lease_elem)
  47                  lease['slice_id'] = lease_elem.attrib['slice_id']
  48                  lease['start_time'] = lease_elem.attrib['start_time']
  49                  lease['duration'] = lease_elem.attrib['duration']
  50                  lease['component_id'] = node_elem.attrib['component_id']
  51                  leases.append(lease)
  52
  53         return leases