from sfa.rspecs.elements.element import Element
from sfa.rspecs.elements.link import Link
from sfa.rspecs.elements.interface import Interface
-from sfa.rspecs.elements.property import Property
+from sfa.rspecs.elements.property import Property
+
class PGv2Link:
+
@staticmethod
def add_links(xml, links):
for link in links:
-
- link_elem = xml.add_instance('link', link, ['component_name', 'component_id', 'client_id'])
- # set component manager element
+
+ link_elem = xml.add_instance(
+ 'link', link, ['component_name', 'component_id', 'client_id'])
+ # set component manager element
if 'component_manager' in link and link['component_manager']:
- cm_element = link_elem.add_element('component_manager', name=link['component_manager'])
+ cm_element = link_elem.add_element(
+ 'component_manager', name=link['component_manager'])
# set interface_ref elements
if link.get('interface1') and link.get('interface2'):
for if_ref in [link['interface1'], link['interface2']]:
- link_elem.add_instance('interface_ref', if_ref, Interface.fields)
+ link_elem.add_instance(
+ 'interface_ref', if_ref, Interface.fields)
# set property elements
- prop1 = link_elem.add_element('property', source_id = link['interface1']['component_id'],
- dest_id = link['interface2']['component_id'], capacity=link['capacity'],
- latency=link['latency'], packet_loss=link['packet_loss'])
- prop2 = link_elem.add_element('property', source_id = link['interface2']['component_id'],
- dest_id = link['interface1']['component_id'], capacity=link['capacity'],
- latency=link['latency'], packet_loss=link['packet_loss'])
+ prop1 = link_elem.add_element('property', source_id=link['interface1']['component_id'],
+ dest_id=link['interface2'][
+ 'component_id'], capacity=link['capacity'],
+ latency=link['latency'], packet_loss=link['packet_loss'])
+ prop2 = link_elem.add_element('property', source_id=link['interface2']['component_id'],
+ dest_id=link['interface1'][
+ 'component_id'], capacity=link['capacity'],
+ latency=link['latency'], packet_loss=link['packet_loss'])
if link.get('type'):
- type_elem = link_elem.add_element('link_type', name=link['type'])
-
- @staticmethod
+ type_elem = link_elem.add_element(
+ 'link_type', name=link['type'])
+
+ @staticmethod
def get_links(xml):
links = []
link_elems = xml.xpath('//default:link | //link')
link = Link(link_elem.attrib, link_elem)
# set component manager
- component_managers = link_elem.xpath('./default:component_manager | ./component_manager')
+ component_managers = link_elem.xpath(
+ './default:component_manager | ./component_manager')
if len(component_managers) > 0 and 'name' in component_managers[0].attrib:
link['component_manager'] = component_managers[0].attrib['name']
link_types = link_elem.xpath('./default:link_type | ./link_type')
if len(link_types) > 0 and 'name' in link_types[0].attrib:
link['type'] = link_types[0].attrib['name']
-
- # get capacity, latency and packet_loss from first property
+
+ # get capacity, latency and packet_loss from first property
property_fields = ['capacity', 'latency', 'packet_loss']
property_elems = link_elem.xpath('./default:property | ./property')
if len(property_elems) > 0:
for attrib in ['capacity', 'latency', 'packet_loss']:
if attrib in prop.attrib:
link[attrib] = prop.attrib[attrib]
-
+
# get interfaces
- iface_elems = link_elem.xpath('./default:interface_ref | ./interface_ref')
- interfaces = [iface_elem.get_instance(Interface) for iface_elem in iface_elems]
+ iface_elems = link_elem.xpath(
+ './default:interface_ref | ./interface_ref')
+ interfaces = [iface_elem.get_instance(
+ Interface) for iface_elem in iface_elems]
if len(interfaces) > 1:
link['interface1'] = interfaces[0]
- link['interface2'] = interfaces[1]
+ link['interface2'] = interfaces[1]
links.append(link)
- return links
+ return links
@staticmethod
def add_link_requests(xml, link_tuples, append=False):
available_links = PGv2Link.get_links(xml)
recently_added = []
for link in available_links:
- if_name1 = Xrn(link['interface1']['component_id']).get_leaf()
- if_name2 = Xrn(link['interface2']['component_id']).get_leaf()
-
+ if_name1 = Xrn(link['interface1']['component_id']).get_leaf()
+ if_name2 = Xrn(link['interface2']['component_id']).get_leaf()
+
requested_link = None
l_tup_1 = (if_name1, if_name2)
l_tup_2 = (if_name2, if_name1)
if link_tuples.issuperset([(if_name1, if_name2)]):
- requested_link = (if_name1, if_name2)
+ requested_link = (if_name1, if_name2)
elif link_tuples.issuperset([(if_name2, if_name2)]):
requested_link = (if_name2, if_name1)
if requested_link:
- # add client id to link ane interface elements
+ # add client id to link ane interface elements
link.element.set('client_id', link['component_name'])
- link['interface1'].element.set('client_id', Xrn(link['interface1']['component_id']).get_leaf())
- link['interface2'].element.set('client_id', Xrn(link['interface2']['component_id']).get_leaf())
+ link['interface1'].element.set('client_id', Xrn(
+ link['interface1']['component_id']).get_leaf())
+ link['interface2'].element.set('client_id', Xrn(
+ link['interface2']['component_id']).get_leaf())
recently_added.append(link['component_name'])
if not append:
- # remove all links that don't have a client id
+ # remove all links that don't have a client id
for link in PGv2Link.get_links(xml):
if not link['client_id'] or link['component_name'] not in recently_added:
parent = link.element.getparent()
- parent.remove(link.element)
-
+ parent.remove(link.element)
+
@staticmethod
def get_link_requests(xml):
link_requests = []
for link in PGv2Link.get_links(xml):
if link['client_id'] != None:
link_requests.append(link)
- return link_requests
+ return link_requests
git://git.onelab.eu / sfa.git / blobdiff