+ namespaces = dict(extensions.items() + [('default', namespace)])
+
+ # Networks
+ def get_networks(self):
+ network_names = set()
+ nodes = self.xml.xpath('//default:node[@component_manager_id] | //node[@component_manager_id]', namespaces=self.namespaces)
+ for node in nodes:
+ if 'component_manager_id' in node.attrib:
+ network_urn = node.get('component_manager_id')
+ if network_urn.startswith("urn:"):
+ network_hrn = Xrn(network_urn).get_hrn()
+ else:
+ # some component_manager_ids are hrns instead of urns??
+ network_hrn = network_urn
+ network_names.add(network_hrn)
+ network_names = list(network_names)
+ networks = [{"name": x} for x in network_names]
+ return networks
+
+ # 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 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))
+
+ # Slivers
+
+ def get_sliver_attributes(self, hostname, network=None):
+ nodes = self.get_nodes({'component_id': '*%s*' %hostname})
+ attribs = []
+ if nodes is not None and isinstance(nodes, list) and len(nodes) > 0:
+ node = nodes[0]
+ sliver = node.xpath('./default:sliver_type', namespaces=self.namespaces)
+ if sliver is not None and isinstance(sliver, list) and len(sliver) > 0:
+ sliver = sliver[0]
+ #attribs = self.attributes_list(sliver)
+ return attribs
+
+ def get_slice_attributes(self, network=None):
+ slice_attributes = []
+ nodes_with_slivers = self.get_nodes_with_slivers()
+ # TODO: default sliver attributes in the PG rspec?
+ default_ns_prefix = self.namespaces['default']
+ for node in nodes_with_slivers:
+ sliver_attributes = self.get_sliver_attributes(node, network)
+ for sliver_attribute in sliver_attributes:
+ name=str(sliver_attribute[0])
+ text =str(sliver_attribute[1])
+ attribs = sliver_attribute[2]
+ # we currently only suppor the <initscript> and <flack> attributes
+ if 'info' in name:
+ attribute = {'name': 'flack_info', 'value': str(attribs), 'node_id': node}
+ slice_attributes.append(attribute)
+ elif 'initscript' in name:
+ if attribs is not None and 'name' in attribs:
+ value = attribs['name']
+ else:
+ value = text
+ attribute = {'name': 'initscript', 'value': value, 'node_id': node}
+ slice_attributes.append(attribute)
+
+ return slice_attributes
+
+ def attributes_list(self, elem):
+ opts = []
+ if elem is not None:
+ for e in elem:
+ opts.append((e.tag, str(e.text).strip(), e.attrib))
+ return opts
+
+ def get_default_sliver_attributes(self, network=None):
+ return []
+
+ def add_default_sliver_attribute(self, name, value, network=None):
+ pass
+
+ 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 = {'type': requested_sliver_type,
+ 'pl_tags': attributes}
+
+ # 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 = Xrn(xrn=sliver_urn, type='slice', id=str(node_id)).get_urn()
+ #node_elem.set('sliver_id', sliver_id)
+
+ # add the sliver type elemnt
+ PGv2SliverType.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(self, slivers, network=None, no_dupes=False):
+ PGv2Node.remove_slivers(self.xml, slivers)
+
+ # Links
+
+ 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)
+
+ # Leases
+
+ def get_leases(self, filter=None):
+ return PGv2Lease.get_leases(self.xml, filter)
+
+ def add_leases(self, leases, network = None, no_dupes=False):
+ PGv2Lease.add_leases(self.xml, leases)
+
+ # Utility
+
+ def merge(self, in_rspec):
+ """
+ Merge contents for specified rspec with current rspec
+ """
+ from sfa.rspecs.rspec import RSpec
+ # just copy over all the child elements under the root element
+ if isinstance(in_rspec, basestring):
+ in_rspec = RSpec(in_rspec)
+
+ nodes = in_rspec.version.get_nodes()
+ # protogeni rspecs need to advertise the availabel sliver types
+ main_nodes = []
+ for node in nodes:
+ if not node['component_name']:
+ # this node element is part of a lease
+ continue
+ if not node.has_key('sliver') or not node['sliver']:
+ node['sliver'] = {'name': 'plab-vserver'}
+ main_nodes.append(node)
+ self.add_nodes(main_nodes)
+ self.add_links(in_rspec.version.get_links())
+
+ # Leases
+ leases = in_rspec.version.get_leases()
+ self.add_leases(leases)
+ #
+ #rspec = RSpec(in_rspec)
+ #for child in rspec.xml.iterchildren():
+ # self.xml.root.append(child)
+
+
+
+ def cleanup(self):
+ # remove unncecessary elements, attributes
+ if self.type in ['request', 'manifest']:
+ # remove 'available' element from remaining node elements
+ self.xml.remove_element('//default:available | //available')
+
+class PGv2Ad(PGv2):
+ enabled = True
+ content_type = 'ad'
+ schema = 'http://www.protogeni.net/resources/rspec/2/ad.xsd'
+ template = '<rspec type="advertisement" xmlns="http://www.protogeni.net/resources/rspec/2" xmlns:flack="http://www.protogeni.net/resources/rspec/ext/flack/1" xmlns:plos="http://www.planet-lab.org/resources/sfa/ext/plos/1" xmlns:planetlab="http://www.planet-lab.org/resources/sfa/ext/planetlab/1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.protogeni.net/resources/rspec/2 http://www.protogeni.net/resources/rspec/2/ad.xsd http://www.planet-lab.org/resources/sfa/ext/planetlab/1 http://www.planet-lab.org/resources/sfa/ext/planetlab/1/planetlab.xsd http://www.planet-lab.org/resources/sfa/ext/plos/1 http://www.planet-lab.org/resources/sfa/ext/plos/1/plos.xsd"/>'