def add_slivers(self, hostnames, attributes=[], sliver_urn=None, append=False):
# all nodes hould already be present in the rspec. Remove all
# nodes that done have slivers
print>>sys.stderr, "\r\n \r\n \r\n \t\t\t SLABv1.PY add_slivers ----->get_node "
for hostname in hostnames:
node_elems = self.get_nodes({'component_id': '*%s*' % hostname})
if not node_elems:
continue
node_elem = node_elems[0]
# determine sliver types for this node
#TODO : add_slivers valid type of sliver needs to be changed 13/07/12 SA
valid_sliver_types = ['slab-node', 'emulab-openvz', 'raw-pc', 'plab-vserver', 'plab-vnode']
#valid_sliver_types = ['emulab-openvz', 'raw-pc', 'plab-vserver', 'plab-vnode']
requested_sliver_type = None
for sliver_type in node_elem.get('slivers', []):
if sliver_type.get('type') in valid_sliver_types:
requested_sliver_type = sliver_type['type']
if not requested_sliver_type:
continue
sliver = {'type': requested_sliver_type,
'pl_tags': attributes}
print>>sys.stderr, "\r\n \r\n \r\n \t\t\t SLABv1.PY add_slivers node_elem %s sliver_type %s \r\n \r\n " %(node_elem, sliver_type)
# remove available element
for available_elem in node_elem.xpath('./default:available | ./available'):
node_elem.remove(available_elem)
# remove interface elements
for interface_elem in node_elem.xpath('./default:interface | ./interface'):
node_elem.remove(interface_elem)
# remove existing sliver_type elements
for sliver_type in node_elem.get('slivers', []):
node_elem.element.remove(sliver_type.element)
# set the client id
node_elem.element.set('client_id', hostname)
if sliver_urn:
pass
# TODO
# set the sliver id
#slice_id = sliver_info.get('slice_id', -1)
#node_id = sliver_info.get('node_id', -1)
#sliver_id = urn_to_sliver_id(sliver_urn, slice_id, node_id)
#node_elem.set('sliver_id', sliver_id)
# add the sliver type elemnt
Slabv1Sliver.add_slivers(node_elem.element, sliver)
#Slabv1SliverType.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['client_id']:
parent = node_elem.element.getparent()
parent.remove(node_elem.element)
def remove_slivers(xml, hostnames):
for hostname in hostnames:
nodes = Slabv1Node.get_nodes(xml, \
{'component_id': '*%s*' % hostname})
for node in nodes:
slivers = Slabv1Sliver.get_slivers(node.element)
for sliver in slivers:
node.element.remove(sliver.element)
def add_slivers(xml, slivers):
logger.debug("SLABv1NODE \tadd_slivers ")
component_ids = []
for sliver in slivers:
filter_sliver = {}
if isinstance(sliver, str):
filter_sliver['component_id'] = '*%s*' % sliver
sliver = {}
elif 'component_id' in sliver and sliver['component_id']:
filter_sliver['component_id'] = '*%s*' % sliver['component_id']
if not filter_sliver:
continue
nodes = Slabv1Node.get_nodes(xml, filter_sliver)
if not nodes:
continue
node = nodes[0]
Slabv1Sliver.add_slivers(node, sliver)
def get_node_objs(node_elems):
nodes = []
for node_elem in node_elems:
node = Node(node_elem.attrib, node_elem)
nodes.append(node)
if 'component_id' in node_elem.attrib:
node['authority_id'] = \
Xrn(node_elem.attrib['component_id']).get_authority_urn()
# 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]
# get location
location_elems = node_elem.xpath('./default:location | ./location')
locations = [location_elem.get_instance(Location) \
for location_elem in location_elems]
if len(locations) > 0:
node['location'] = locations[0]
# get interfaces
iface_elems = node_elem.xpath('./default:interface | ./interface')
node['interfaces'] = [iface_elem.get_instance(Interface) \
for iface_elem in iface_elems]
# get services
#node['services'] = PGv2Services.get_services(node_elem)
# get slivers
node['slivers'] = Slabv1Sliver.get_slivers(node_elem)
available_elems = node_elem.xpath('./default:available | \
./available')
if len(available_elems) > 0 and 'name' in available_elems[0].attrib:
if available_elems[0].attrib.get('now', '').lower() == 'true':
node['boot_state'] = 'boot'
else:
node['boot_state'] = 'disabled'
logger.debug("SLABV1NODE \tget_nodes_objs \
#nodes %s"%(nodes))
return nodes
def add_nodes(xml, nodes):
#Add network item in the xml
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
#logger.debug("slabv1Node \t add_nodes nodes %s \r\n "%(nodes))
node_elems = []
#Then add nodes items to the network item in the xml
for node in nodes:
#Attach this node to the network element
node_fields = ['component_manager_id', 'component_id', 'exclusive',\
'boot_state', 'mobile']
node_elem = network_elem.add_instance('node', node, node_fields)
node_elems.append(node_elem)
#Set the attibutes of this node element
for attribute in node:
# set component name
if attribute is 'component_id':
component_name = node['component_name']
node_elem.set('component_name', component_name)
# set hardware types, extend fields to add Senslab's architecture
#and radio type
if attribute is 'hardware_types':
for hardware_type in node.get('hardware_types', []):
fields = HardwareType.fields
fields.extend(['archi','radio'])
node_elem.add_instance('hardware_types', node, fields)
# set location
if attribute is 'location':
node_elem.add_instance('location', node['location'], \
Location.fields)
# add granularity of the reservation system
#TODO put the granularity in network instead SA 18/07/12
if attribute is 'granularity' :
granularity = node['granularity']
if granularity:
node_elem.add_instance('granularity', \
granularity, granularity.fields)
# set available element
if attribute is 'boot_state':
if node.get('boot_state').lower() == 'alive':
available_elem = node_elem.add_element('available', \
now='true')
else:
available_elem = node_elem.add_element('available', \
now='false')
#set position
if attribute is 'position':
node_elem.add_instance('position', node['position'], \
SlabPosition.fields)
## add services
#PGv2Services.add_services(node_elem, node.get('services', []))
# add slivers
if attribute is 'slivers':
slivers = node.get('slivers', [])
if not slivers:
# we must still advertise the available sliver types
slivers = Sliver({'type': 'slab-node'})
# we must also advertise the available initscripts
#slivers['tags'] = []
#if node.get('pl_initscripts'):
#for initscript in node.get('pl_initscripts', []):
#slivers['tags'].append({'name': 'initscript', \
#'value': initscript['name']})
Slabv1Sliver.add_slivers(node_elem, slivers)
return node_elems
