+ 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
+ continue
+
+ 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 add_slivers(self, slivers, sliver_urn=None, no_dupes=False, append=False):
+
+ # 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 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_default_sliver_attribute(self, name, value, network=None):
+ pass
+
+ def add_interfaces(self, interfaces, no_dupes=False):
+ pass
+
+ 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, RSpec):
+ in_rspec = in_rspec.toxml()
+ tree = etree.parse(StringIO(in_rspec))
+ root = tree.getroot()
+ for child in root.getchildren():
+ 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')