1 from sfa.util.sfalogging import logger
2 from sfa.util.xml import XpathFilter
3 from sfa.util.xrn import Xrn
4 from sfa.util.sfatime import utcparse, datetime_to_string, datetime_to_epoch
6 from sfa.rspecs.elements.element import Element
7 from sfa.rspecs.elements.node import NodeElement
8 from sfa.rspecs.elements.sliver import Sliver
9 from sfa.rspecs.elements.location import Location
10 from sfa.rspecs.elements.hardware_type import HardwareType
11 from sfa.rspecs.elements.disk_image import DiskImage
12 from sfa.rspecs.elements.interface import Interface
13 from sfa.rspecs.elements.bwlimit import BWlimit
14 from sfa.rspecs.elements.pltag import PLTag
15 from sfa.rspecs.elements.versions.nitosv1Sliver import NITOSv1Sliver
16 from sfa.rspecs.elements.versions.nitosv1PLTag import NITOSv1PLTag
17 from sfa.rspecs.elements.versions.pgv2Services import PGv2Services
18 from sfa.rspecs.elements.lease import Lease
19 from sfa.rspecs.elements.channel import Channel
26 def add_leases(xml, leases, channels):
28 network_elems = xml.xpath('//network')
29 if len(network_elems) > 0:
30 network_elem = network_elems[0]
32 network_urn = Xrn(leases[0]['component_id']).get_authority_urn().split(':')[0]
33 network_elem = xml.add_element('network', name = network_urn)
37 # group the leases by slice and timeslots
41 slice_id = leases[0]['slice_id']
42 start_time = leases[0]['start_time']
43 duration = leases[0]['duration']
47 if slice_id == lease['slice_id'] and start_time == lease['start_time'] and duration == lease['duration']:
50 grouped_leases.append(group)
56 for lease in grouped_leases:
57 lease[0]['start_time'] = datetime_to_string(utcparse(lease[0]['start_time']))
59 lease_fields = ['slice_id', 'start_time', 'duration']
60 lease_elem = network_elem.add_instance('lease', lease[0], lease_fields)
61 lease_elems.append(lease_elem)
63 # add nodes of this lease
65 lease_elem.add_instance('node', node, ['component_id'])
67 # add reserved channels of this lease
68 #channels = [{'channel_id': 1}, {'channel_id': 2}]
69 for channel in channels:
70 channel['start_time'] = datetime_to_string(utcparse(channel['start_time']))
71 if channel['slice_id'] == lease[0]['slice_id'] and channel['start_time'] == lease[0]['start_time'] and channel['duration'] == lease[0]['duration']:
72 lease_elem.add_instance('channel', channel, ['component_id'])
76 def get_leases(xml, filter={}):
77 xpath = '//lease%s | //default:lease%s' % (XpathFilter.xpath(filter), XpathFilter.xpath(filter))
78 lease_elems = xml.xpath(xpath)
79 return NITOSv1Lease.get_lease_objs(lease_elems)
82 def get_lease_objs(lease_elems):
85 for lease_elem in lease_elems:
87 node_elems = lease_elem.xpath('./default:node | ./node')
88 for node_elem in node_elems:
89 lease = Lease(lease_elem.attrib, lease_elem)
90 lease['slice_id'] = lease_elem.attrib['slice_id']
91 lease['start_time'] = datetime_to_epoch(utcparse(lease_elem.attrib['start_time']))
92 lease['duration'] = lease_elem.attrib['duration']
93 lease['component_id'] = node_elem.attrib['component_id']
96 channel_elems = lease_elem.xpath('./default:channel | ./channel')
97 for channel_elem in channel_elems:
98 channel = Channel(channel_elem.attrib, channel_elem)
99 channel['slice_id'] = lease_elem.attrib['slice_id']
100 channel['start_time'] = datetime_to_epoch(utcparse(lease_elem.attrib['start_time']))
101 channel['duration'] = lease_elem.attrib['duration']
102 channel['component_id'] = channel_elem.attrib['component_id']
104 channels.append(channel)
106 return (leases, channels)