-from lxml import etree
from copy import deepcopy
from StringIO import StringIO
from sfa.util.xrn import urn_to_sliver_id
from sfa.util.plxrn import hostname_to_urn, xrn_to_hostname
-from sfa.rspecs.baseversion import BaseVersion
-from sfa.rspecs.rspec_elements import RSpecElement, RSpecElements
+from sfa.rspecs.rspec_version import BaseVersion
from sfa.rspecs.elements.versions.pgv2Link import PGv2Link
+from sfa.rspecs.elements.versions.pgv2Node import PGv2Node
+from sfa.rspecs.elements.versions.pgv2SliverType import PGv2SliverType
class PGv2(BaseVersion):
type = 'ProtoGENI'
'planetlab': "http://www.planet-lab.org/resources/sfa/ext/planetlab/1",
}
namespaces = dict(extensions.items() + [('default', namespace)])
- elements = []
+ # Networks
def get_network(self):
network = None
nodes = self.xml.xpath('//default:node[@component_manager_id][1]', namespaces=self.namespaces)
networks = self.xml.xpath('//default:node[@component_manager_id]/@component_manager_id', namespaces=self.namespaces)
return set(networks)
- def get_node_element(self, hostname, network=None):
- nodes = self.xml.xpath('//default:node[@component_id[contains(., "%s")]] | node[@component_id[contains(., "%s")]]' % (hostname, hostname), namespaces=self.namespaces)
- if isinstance(nodes,list) and nodes:
- return nodes[0]
- else:
- return None
+
+ # Nodes
- def get_node_elements(self, network=None):
- nodes = self.xml.xpath('//default:node | //node', namespaces=self.namespaces)
- return nodes
+ def get_nodes(self, filter=None):
+ return PGv2Node.get_nodes(self.xml, filter)
+ def get_nodes_with_slivers(self):
+ return PGv2Node.get_nodes_with_slivers(self.xml)
- def get_nodes(self, network=None):
- xpath = '//default:node[@component_name]/@component_id | //node[@component_name]/@component_id'
- nodes = self.xml.xpath(xpath, namespaces=self.namespaces)
- nodes = [xrn_to_hostname(node) for node in nodes]
- return nodes
+ def add_nodes(self, nodes, check_for_dupes=False):
+ return PGv2Node.add_nodes(self.xml, nodes)
+
+ def merge_node(self, source_node_tag):
+ # this is untested
+ self.xml.root.append(deepcopy(source_node_tag))
def get_nodes_with_slivers(self, network=None):
if network:
nodes = [xrn_to_hostname(node) for node in nodes]
return nodes
- def get_nodes_without_slivers(self, network=None):
- return []
-
+ # Slivers
+
def get_sliver_attributes(self, hostname, network=None):
node = self.get_node_element(hostname, network)
sliver = node.xpath('./default:sliver_type', namespaces=self.namespaces)
return slice_attributes
- def get_links(self, network=None):
- return PGv2Link.get_links(self.xml)
-
- def get_link_requests(self):
- return PGv2Link.get_link_requests(self.xml)
-
- def add_links(self, links):
- PGv2Link.add_links(self.xml.root, links)
-
- def add_link_requests(self, link_tuples, append=False):
- PGv2Link.add_link_requests(self.xml.root, link_tuples, append)
-
def attributes_list(self, elem):
opts = []
if elem is not None:
def add_default_sliver_attribute(self, name, value, network=None):
pass
- def add_nodes(self, nodes, check_for_dupes=False):
- if not isinstance(nodes, list):
- nodes = [nodes]
- for node in nodes:
- urn = ""
- if check_for_dupes and \
- self.xml.xpath('//default:node[@component_uuid="%s"]' % urn, namespaces=self.namespaces):
- # node already exists
+ 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
+ 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
+ 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 = {'name': requested_sliver_type,
+ 'pl_tags': attributes}
+
+ # remove existing sliver_type tags
+ for sliver_type in node_elem.get('slivers', []):
+ node_elem.remove(sliver_type)
+
+ # set the client id
+ node.set('client_id', hostname)
+ if sliver_urn:
+ # 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
+ PGv1Sliver.add_slivers(node_elem, sliver)
+
+ # remove all nodes without slivers
+ if not append:
+ for node_elem in self.get_nodes():
+ if not node['client_id']:
+ parent = node.getparent()
+ parent.remove(node_elem)
- node_tag = etree.SubElement(self.xml.root, 'node', exclusive='false')
- if 'network_urn' in node:
- node_tag.set('component_manager_id', node['network_urn'])
- if 'urn' in node:
- node_tag.set('component_id', node['urn'])
- if 'hostname' in node:
- node_tag.set('component_name', node['hostname'])
- # TODO: should replace plab-pc with pc model
- node_type_tag = etree.SubElement(node_tag, 'hardware_type', name='plab-pc')
- node_type_tag = etree.SubElement(node_tag, 'hardware_type', name='pc')
- available_tag = etree.SubElement(node_tag, 'available', now='true')
- sliver_type_tag = etree.SubElement(node_tag, 'sliver_type', name='plab-vserver')
-
- pl_initscripts = node.get('pl_initscripts', {})
- for pl_initscript in pl_initscripts.values():
- etree.SubElement(sliver_type_tag, '{%s}initscript' % self.namespaces['planetlab'], name=pl_initscript['name'])
-
- # protogeni uses the <sliver_type> tag to identify the types of
- # vms available at the node.
- # only add location tag if longitude and latitude are not null
- if 'site' in node:
- longitude = node['site'].get('longitude', None)
- latitude = node['site'].get('latitude', None)
- if longitude and latitude:
- location_tag = etree.SubElement(node_tag, 'location', country="us", \
- longitude=str(longitude), latitude=str(latitude))
-
- def merge_node(self, source_node_tag):
- # this is untested
- self.xml.root.append(deepcopy(source_node_tag))
+ def remove_slivers(self, slivers, network=None, no_dupes=False):
+ PGv2Node.remove_slivers(self.xml, slivers)
- def add_slivers(self, slivers, sliver_urn=None, no_dupes=False, append=False):
+ # Links
- # all nodes hould already be present in the rspec. Remove all
- # nodes that done have slivers
- slivers_dict = {}
- for sliver in slivers:
- if isinstance(sliver, basestring):
- slivers_dict[sliver] = {'hostname': sliver}
- elif isinstance(sliver, dict):
- slivers_dict[sliver['hostname']] = sliver
-
- nodes = self.get_node_elements()
- for node in nodes:
- urn = node.get('component_id')
- hostname = xrn_to_hostname(urn)
- if hostname not in slivers_dict and not append:
- parent = node.getparent()
- parent.remove(node)
- else:
- sliver_info = slivers_dict[hostname]
- sliver_type_elements = node.xpath('./default:sliver_type', namespaces=self.namespaces)
- available_sliver_types = [element.attrib['name'] for element in sliver_type_elements]
- valid_sliver_types = ['emulab-openvz', 'raw-pc', 'plab-vserver', 'plab-vnode']
- requested_sliver_type = None
- for valid_sliver_type in valid_sliver_types:
- if valid_sliver_type in available_sliver_types:
- requested_sliver_type = valid_sliver_type
- if requested_sliver_type:
- # remove existing sliver_type tags,it needs to be recreated
- sliver_elem = node.xpath('./default:sliver_type | ./sliver_type', namespaces=self.namespaces)
- if sliver_elem and isinstance(sliver_elem, list):
- sliver_elem = sliver_elem[0]
- node.remove(sliver_elem)
- # set the client id
- node.set('client_id', hostname)
- if sliver_urn:
- # 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.set('sliver_id', sliver_id)
-
- # add the sliver element
- sliver_elem = etree.SubElement(node, 'sliver_type', name=requested_sliver_type)
- for tag in sliver_info.get('tags', []):
- if tag['tagname'] == 'flack_info':
- e = etree.SubElement(sliver_elem, '{%s}info' % self.namespaces['flack'], attrib=eval(tag['value']))
- elif tag['tagname'] == 'initscript':
- e = etree.SubElement(sliver_elem, '{%s}initscript' % self.namespaces['planetlab'], attrib={'name': tag['value']})
- else:
- # node isn't usable. just remove it from the request
- parent = node.getparent()
- parent.remove(node)
+ def get_links(self, network=None):
+ return PGv2Link.get_links(self.xml)
-
+ def get_link_requests(self):
+ return PGv2Link.get_link_requests(self.xml)
- def remove_slivers(self, slivers, network=None, no_dupes=False):
- for sliver in slivers:
- node_elem = self.get_node_element(sliver['hostname'])
- sliver_elem = node_elem.xpath('./default:sliver_type', self.namespaces)
- if sliver_elem != None and sliver_elem != []:
- node_elem.remove(sliver_elem[0])
+ def add_links(self, links):
+ PGv2Link.add_links(self.xml.root, links)
- def add_default_sliver_attribute(self, name, value, network=None):
- pass
+ def add_link_requests(self, link_tuples, append=False):
+ PGv2Link.add_link_requests(self.xml.root, link_tuples, append)
- def add_interfaces(self, interfaces, no_dupes=False):
- pass
+ # Utility
def merge(self, in_rspec):
"""
# just copy over all the child elements under the root element
if isinstance(in_rspec, RSpec):
in_rspec = in_rspec.toxml()
- tree = etree.parse(StringIO(in_rspec))
- root = tree.getroot()
- for child in root.getchildren():
+
+ rspec = RSpec(in_rspec)
+ for child in rspec.root.iterchildren():
self.xml.root.append(child)
def cleanup(self):
git://git.onelab.eu / sfa.git / commitdiff