def add_slivers(self,
hostnames,
attributes=[],
sliver_urn=None,
append=False):
# add slice name to network tag
network_tags = self.xml.xpath('//network')
if network_tags:
network_tag = network_tags[0]
network_tag.set('slice', urn_to_hrn(sliver_urn)[0])
# add slivers
sliver = {'name': sliver_urn, 'pl_tags': attributes}
for hostname in hostnames:
if sliver_urn:
sliver['name'] = sliver_urn
node_elems = self.get_nodes({'component_id': '*%s*' % hostname})
if not node_elems:
continue
node_elem = node_elems[0]
NITOSv1Sliver.add_slivers(node_elem.element, sliver)
# remove all nodes without slivers
if not append:
for node_elem in self.get_nodes():
if not node_elem['slivers']:
parent = node_elem.element.getparent()
parent.remove(node_elem.element)
def add_slivers(self, hostnames, attributes=[], sliver_urn=None, append=False):
# add slice name to network tag
network_tags = self.xml.xpath('//network')
if network_tags:
network_tag = network_tags[0]
network_tag.set('slice', urn_to_hrn(sliver_urn)[0])
# add slivers
sliver = {'name':sliver_urn,
'pl_tags': attributes}
for hostname in hostnames:
if sliver_urn:
sliver['name'] = sliver_urn
node_elems = self.get_nodes({'component_id': '*%s*' % hostname})
if not node_elems:
continue
node_elem = node_elems[0]
NITOSv1Sliver.add_slivers(node_elem.element, sliver)
# remove all nodes without slivers
if not append:
for node_elem in self.get_nodes():
if not node_elem['slivers']:
parent = node_elem.element.getparent()
parent.remove(node_elem.element)
def get_sliver_attributes(self, component_id, network=None):
nodes = self.get_nodes({'component_id': '*%s*' % component_id})
attribs = []
if nodes is not None and isinstance(nodes, list) and len(nodes) > 0:
node = nodes[0]
slivers = NITOSv1Sliver.get_slivers(node.element)
if slivers is not None and isinstance(slivers, list) and len(slivers) > 0:
sliver = slivers[0]
attribs = NITOSv1Sliver.get_sliver_attributes(sliver.element)
return attribs
def add_sliver_attribute(self, component_id, name, value, network=None):
nodes = self.get_nodes({'component_id': '*%s*' % component_id})
if nodes is not None and isinstance(nodes, list) and len(nodes) > 0:
node = nodes[0]
slivers = NITOSv1Sliver.get_slivers(node)
if slivers:
sliver = slivers[0]
NITOSv1Sliver.add_sliver_attribute(sliver, name, value)
else:
# should this be an assert / raise an exception?
logger.error("WARNING: failed to find component_id %s" % component_id)
def get_sliver_attributes(self, component_id, network=None):
nodes = self.get_nodes({'component_id': '*%s*' % component_id})
attribs = []
if nodes is not None and isinstance(nodes, list) and len(nodes) > 0:
node = nodes[0]
slivers = NITOSv1Sliver.get_slivers(node.element)
if slivers is not None and isinstance(slivers,
list) and len(slivers) > 0:
sliver = slivers[0]
attribs = NITOSv1Sliver.get_sliver_attributes(sliver.element)
return attribs
def add_sliver_attribute(self, component_id, name, value, network=None):
nodes = self.get_nodes({'component_id': '*%s*' % component_id})
if nodes is not None and isinstance(nodes, list) and len(nodes) > 0:
node = nodes[0]
slivers = NITOSv1Sliver.get_slivers(node)
if slivers:
sliver = slivers[0]
NITOSv1Sliver.add_sliver_attribute(sliver, name, value)
else:
# should this be an assert / raise an exception?
logger.error("WARNING: failed to find component_id %s" %
component_id)
def get_default_sliver_attributes(self, network=None):
if network:
defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
else:
defaults = self.xml.xpath("//sliver_defaults")
if not defaults: return []
return NITOSv1Sliver.get_sliver_attributes(defaults[0])
def add_default_sliver_attribute(self, name, value, network=None):
if network:
defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
else:
defaults = self.xml.xpath("//sliver_defaults")
if not defaults:
if network:
network_tag = self.xml.xpath("//network[@name='%s']" % network)
else:
network_tag = self.xml.xpath("//network")
if isinstance(network_tag, list):
network_tag = network_tag[0]
defaults = network_tag.add_element('sliver_defaults')
elif isinstance(defaults, list):
defaults = defaults[0]
NITOSv1Sliver.add_sliver_attribute(defaults, name, value)
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 filter:
continue
nodes = NITOSv1Node.get_nodes(xml, filter)
if not nodes:
continue
node = nodes[0]
NITOSv1Sliver.add_slivers(node, sliver)
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 filter:
continue
nodes = NITOSv1Node.get_nodes(xml, filter)
if not nodes:
continue
node = nodes[0]
NITOSv1Sliver.add_slivers(node, sliver)
def remove_slivers(xml, hostnames):
for hostname in hostnames:
nodes = NITOSv1Node.get_nodes(xml, {'component_id': '*%s*' % hostname})
for node in nodes:
slivers = NITOSv1Sliver.get_slivers(node.element)
for sliver in slivers:
node.element.remove(sliver.element)
def get_default_sliver_attributes(self, network=None):
if network:
defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" %
network)
else:
defaults = self.xml.xpath("//sliver_defaults")
if not defaults: return []
return NITOSv1Sliver.get_sliver_attributes(defaults[0])
def add_default_sliver_attribute(self, name, value, network=None):
if network:
defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" %
network)
else:
defaults = self.xml.xpath("//sliver_defaults")
if not defaults:
if network:
network_tag = self.xml.xpath("//network[@name='%s']" % network)
else:
network_tag = self.xml.xpath("//network")
if isinstance(network_tag, list):
network_tag = network_tag[0]
defaults = network_tag.add_element('sliver_defaults')
elif isinstance(defaults, list):
defaults = defaults[0]
NITOSv1Sliver.add_sliver_attribute(defaults, name, value)
def remove_slivers(xml, hostnames):
for hostname in hostnames:
nodes = NITOSv1Node.get_nodes(xml,
{'component_id': '*%s*' % hostname})
for node in nodes:
slivers = NITOSv1Sliver.get_slivers(node.element)
for sliver in slivers:
node.element.remove(sliver.element)
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']
# get location
location_elems = node_elem.xpath('./default:location | ./location')
locations = [
loc_elem.get_instance(Location) for loc_elem in location_elems
]
if len(locations) > 0:
node['location'] = locations[0]
# get bwlimit
bwlimit_elems = node_elem.xpath('./default:bw_limit | ./bw_limit')
bwlimits = [
bwlimit_elem.get_instance(BWlimit)
for bwlimit_elem in bwlimit_elems
]
if len(bwlimits) > 0:
node['bwlimit'] = bwlimits[0]
# get interfaces
iface_elems = node_elem.xpath('./default:interface | ./interface')
ifaces = [
iface_elem.get_instance(Interface)
for iface_elem in iface_elems
]
node['interfaces'] = ifaces
# get services
node['services'] = PGv2Services.get_services(node_elem)
# get slivers
node['slivers'] = NITOSv1Sliver.get_slivers(node_elem)
# get tags
node['tags'] = NITOSv1PLTag.get_pl_tags(node_elem,
ignore=Node.fields +
["hardware_type"])
# get hardware types
hardware_type_elems = node_elem.xpath(
'./default:hardware_type | ./hardware_type')
node['hardware_types'] = [
hw_type.get_instance(HardwareType)
for hw_type in hardware_type_elems
]
# temporary... play nice with old slice manager rspec
if not node['component_name']:
hostname_elem = node_elem.find("hostname")
if hostname_elem != None:
node['component_name'] = hostname_elem.text
nodes.append(node)
return nodes
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']
# get location
location_elems = node_elem.xpath('./default:location | ./location')
locations = [loc_elem.get_instance(Location) for loc_elem in location_elems]
if len(locations) > 0:
node['location'] = locations[0]
# get bwlimit
bwlimit_elems = node_elem.xpath('./default:bw_limit | ./bw_limit')
bwlimits = [bwlimit_elem.get_instance(BWlimit) for bwlimit_elem in bwlimit_elems]
if len(bwlimits) > 0:
node['bwlimit'] = bwlimits[0]
# get interfaces
iface_elems = node_elem.xpath('./default:interface | ./interface')
ifaces = [iface_elem.get_instance(Interface) for iface_elem in iface_elems]
node['interfaces'] = ifaces
# get services
node['services'] = PGv2Services.get_services(node_elem)
# get slivers
node['slivers'] = NITOSv1Sliver.get_slivers(node_elem)
# get tags
node['tags'] = NITOSv1PLTag.get_pl_tags(node_elem, ignore=Node.fields+["hardware_type"])
# get hardware types
hardware_type_elems = node_elem.xpath('./default:hardware_type | ./hardware_type')
node['hardware_types'] = [hw_type.get_instance(HardwareType) for hw_type in hardware_type_elems]
# temporary... play nice with old slice manager rspec
if not node['component_name']:
hostname_elem = node_elem.find("hostname")
if hostname_elem != None:
node['component_name'] = hostname_elem.text
nodes.append(node)
return nodes
def add_nodes(xml, nodes):
network_elems = xml.xpath('//network')
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_elem = xml.add_element('network', name = Xrn(network_urn).get_hrn())
else:
network_elem = xml
# needs to be improuved to retreive the gateway addr dynamically.
gateway_addr = 'nitlab.inf.uth.gr'
node_elems = []
for node in nodes:
node_fields = ['component_manager_id', 'component_id', 'boot_state']
node_elem = network_elem.add_instance('node', node, node_fields)
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(xrn=node['component_id']).get_leaf()
node_elem.set('component_name', component_name)
hostname_elem = node_elem.add_element('hostname')
hostname_elem.set_text(component_name)
# set site id
if 'authority_id' in node and node['authority_id']:
node_elem.set('site_id', node['authority_id'])
# add locaiton
location = node.get('location')
if location:
node_elem.add_instance('location', location, Location.fields)
# add 3D Position of the node
position_3d = node.get('position_3d')
if position_3d:
node_elem.add_instance('position_3d', position_3d, Position3D.fields)
# all nitos nodes are exculsive
exclusive_elem = node_elem.add_element('exclusive')
exclusive_elem.set_text('TRUE')
# In order to access nitos nodes, one need to pass through the nitos gateway
# here we advertise Nitos access gateway address
gateway_elem = node_elem.add_element('gateway')
gateway_elem.set_text(gateway_addr)
# add granularity of the reservation system
granularity = node.get('granularity')['grain']
if granularity:
#node_elem.add_instance('granularity', granularity, granularity.fields)
granularity_elem = node_elem.add_element('granularity')
granularity_elem.set_text(str(granularity))
# add hardware type
#hardware_type = node.get('hardware_type')
#if hardware_type:
# node_elem.add_instance('hardware_type', hardware_type)
hardware_type_elem = node_elem.add_element('hardware_type')
hardware_type_elem.set_text(node.get('hardware_type'))
if isinstance(node.get('interfaces'), list):
for interface in node.get('interfaces', []):
node_elem.add_instance('interface', interface, ['component_id', 'client_id', 'ipv4'])
#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', []))
tags = node.get('tags', [])
if tags:
for tag in tags:
tag_elem = node_elem.add_element(tag['tagname'])
tag_elem.set_text(tag['value'])
NITOSv1Sliver.add_slivers(node_elem, node.get('slivers', []))
def add_nodes(xml, nodes):
network_elems = xml.xpath('//network')
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_elem = xml.add_element('network',
name=Xrn(network_urn).get_hrn())
else:
network_elem = xml
# needs to be improuved to retreive the gateway addr dynamically.
gateway_addr = 'nitlab.inf.uth.gr'
node_elems = []
for node in nodes:
node_fields = [
'component_manager_id', 'component_id', 'boot_state'
]
node_elem = network_elem.add_instance('node', node, node_fields)
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(xrn=node['component_id']).get_leaf()
node_elem.set('component_name', component_name)
hostname_elem = node_elem.add_element('hostname')
hostname_elem.set_text(component_name)
# set site id
if 'authority_id' in node and node['authority_id']:
node_elem.set('site_id', node['authority_id'])
# add locaiton
location = node.get('location')
if location:
node_elem.add_instance('location', location, Location.fields)
# add 3D Position of the node
position_3d = node.get('position_3d')
if position_3d:
node_elem.add_instance('position_3d', position_3d,
Position3D.fields)
# all nitos nodes are exculsive
exclusive_elem = node_elem.add_element('exclusive')
exclusive_elem.set_text('TRUE')
# In order to access nitos nodes, one need to pass through the nitos gateway
# here we advertise Nitos access gateway address
gateway_elem = node_elem.add_element('gateway')
gateway_elem.set_text(gateway_addr)
# add granularity of the reservation system
granularity = node.get('granularity')['grain']
if granularity:
#node_elem.add_instance('granularity', granularity, granularity.fields)
granularity_elem = node_elem.add_element('granularity')
granularity_elem.set_text(str(granularity))
# add hardware type
#hardware_type = node.get('hardware_type')
#if hardware_type:
# node_elem.add_instance('hardware_type', hardware_type)
hardware_type_elem = node_elem.add_element('hardware_type')
hardware_type_elem.set_text(node.get('hardware_type'))
if isinstance(node.get('interfaces'), list):
for interface in node.get('interfaces', []):
node_elem.add_instance(
'interface', interface,
['component_id', 'client_id', 'ipv4'])
#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', []))
tags = node.get('tags', [])
if tags:
for tag in tags:
tag_elem = node_elem.add_element(tag['tagname'])
tag_elem.set_text(tag['value'])
NITOSv1Sliver.add_slivers(node_elem, node.get('slivers', []))