from sfa.util.sfalogging import logger
from sfa.util.xml import XpathFilter
from sfa.util.plxrn import PlXrn, xrn_to_hostname
from sfa.util.xrn import Xrn
from sfa.rspecs.elements.element import Element
from sfa.rspecs.elements.node import Node
from sfa.rspecs.elements.sliver import Sliver
from sfa.rspecs.elements.location import Location
from sfa.rspecs.elements.hardware_type import HardwareType
from sfa.rspecs.elements.disk_image import DiskImage
from sfa.rspecs.elements.interface import Interface
from sfa.rspecs.elements.bwlimit import BWlimit
from sfa.rspecs.elements.pltag import PLTag
from sfa.rspecs.elements.versions.sfav1Sliver import SFAv1Sliver
from sfa.rspecs.elements.versions.sfav1PLTag import SFAv1PLTag
from sfa.rspecs.elements.versions.pgv2Services import PGv2Services
class SFAv1Node:
@staticmethod
def add_nodes(xml, nodes):
network_elems = Element.get_elements(xml, '//network', fields=['name'])
if len(network_elems) > 0:
network_elem = network_elems[0]
elif len(nodes) > 0 and nodes[0].get('component_manager_id'):
network_urn = nodes[0]['component_manager_id']
network_elems = Element.add_elements(xml, 'network', {'name': Xrn(network_urn).get_hrn()})
network_elem = network_elems[0]
node_elems = []
for node in nodes:
node_fields = ['component_manager_id', 'component_id', 'boot_state']
elems = Element.add_elements(network_elem, 'node', node, node_fields)
node_elem = elems[0]
node_elems.append(node_elem)
# determine network hrn
network_hrn = None
if 'component_manager_id' in node and node['component_manager_id']:
network_hrn = Xrn(node['component_manager_id']).get_hrn()
# set component_name attribute and hostname element
if 'component_id' in node and node['component_id']:
component_name = xrn_to_hostname(node['component_id'])
node_elem.set('component_name', component_name)
hostname_tag = node_elem.add_element('hostname')
hostname_tag.set_text(component_name)
# set site id
if 'authority_id' in node and node['authority_id']:
node_elem.set('site_id', node['authority_id'])
location_elems = Element.add_elements(node_elem, 'location',
node.get('location', []), Location.fields)
interface_elems = Element.add_elements(node_elem, 'interface',
node.get('interfaces', []), Interface.fields)
#if 'bw_unallocated' in node and node['bw_unallocated']:
# bw_unallocated = etree.SubElement(node_elem, 'bw_unallocated', units='kbps').text = str(int(node['bw_unallocated'])/1000)
PGv2Services.add_services(node_elem, node.get('services', []))
SFAv1PLTag.add_pl_tags(node_elem, node.get('tags', []))
SFAv1Sliver.add_slivers(node_elem, node.get('slivers', []))
@staticmethod
def add_slivers(xml, slivers):
component_ids = []
for sliver in slivers:
filter = {}
if isinstance(sliver, str):
filter['component_id'] = '*%s*' % sliver
sliver = {}
elif 'component_id' in sliver and sliver['component_id']:
filter['component_id'] = '*%s*' % sliver['component_id']
if not fliter:
continue
nodes = SFAv1Node.get_nodes(xml, filter)
if not nodes:
continue
node = nodes[0]
SFAv1Sliver.add_slivers(node, sliver)
@staticmethod
def remove_slivers(xml, hostnames):
for hostname in hostnames:
nodes = SFAv1Node.get_nodes(xml, {'component_id': '*%s*' % hostname})
for node in nodes:
slivers = SFAv1Slivers.get_slivers(node.element)
for sliver in slivers:
node.element.remove(sliver.element)
@staticmethod
def get_nodes(xml, filter={}):
xpath = '//node%s | //default:node%s' % (XpathFilter.xpath(filter), XpathFilter.xpath(filter))
node_elems = xml.xpath(xpath)
return SFAv1Node.get_node_objs(node_elems)
# xxx Thierry : an ugly hack to get the tests to pass again
# probably this needs to be trashed
# the original code returned the tag,
# but we prefer the father node instead as it already holds data
# initially this was to preserve the nodename...
# xxx I don't get the ' | //default:node/default:sliver' ...
@staticmethod
def get_nodes_with_slivers_thierry(xml):
# dropping the ''
xpath = '//node[count (sliver)>0]'
node_elems = xml.xpath(xpath)
# we need to check/recompute the node data
return node_elems
@staticmethod
def get_nodes_with_slivers(xml):
xpath = '//node/sliver | //default:node/default:sliver'
node_elems = xml.xpath(xpath)
return SFAv1Node.get_node_objs(node_elems)
@staticmethod
def get_node_objs(node_elems):
nodes = []
for node_elem in node_elems:
node = Node(node_elem.attrib, node_elem)
if 'site_id' in node_elem.attrib:
node['authority_id'] = node_elem.attrib['site_id']
location_objs = Element.get_elements(node_elem, './default:location | ./location', Location)
if len(location_objs) > 0:
node['location'] = location_objs[0]
bwlimit_objs = Element.get_elements(node_elem, './default:bw_limit | ./bw_limit', BWlimit)
if len(bwlimit_objs) > 0:
node['bwlimit'] = bwlimit_objs[0]
node['interfaces'] = Element.get_elements(node_elem, './default:interface | ./interface', Interface)
node['services'] = PGv2Services.get_services(node_elem)
node['slivers'] = SFAv1Sliver.get_slivers(node_elem)
#thierry node['tags'] = SFAv1PLTag.get_pl_tags(node_elem, ignore=Node.fields.keys())
node['tags'] = SFAv1PLTag.get_pl_tags(node_elem, ignore=Node.fields)
nodes.append(node)
return nodes