1 from sfa.util.plxrn import PlXrn, xrn_to_hostname
2 from sfa.util.xrn import Xrn
3 from sfa.util.xml import XpathFilter
4 from sfa.rspecs.elements.node import Node
5 from sfa.rspecs.elements.sliver import Sliver
6 from sfa.rspecs.elements.location import Location
7 from sfa.rspecs.elements.hardware_type import HardwareType
8 from sfa.rspecs.elements.disk_image import DiskImage
9 from sfa.rspecs.elements.interface import Interface
10 from sfa.rspecs.elements.bwlimit import BWlimit
11 from sfa.rspecs.elements.pltag import PLTag
12 from sfa.rspecs.elements.versions.pgv2Services import PGv2Services
13 from sfa.rspecs.elements.versions.pgv2SliverType import PGv2SliverType
17 def add_nodes(xml, nodes):
20 node_fields = ['component_manager_id', 'component_id', 'client_id', 'sliver_id', 'exclusive']
21 node_elem = xml.add_instance('node', node, node_fields)
22 node_elems.append(node_elem)
24 if node.get('component_id'):
25 component_name = xrn_to_hostname(node['component_id'])
26 node_elem.set('component_name', component_name)
28 if node.get('hardware_types'):
29 for hardware_type in node.get('hardware_types', []):
30 node_elem.add_instance('hardware_type', hardware_type, HardwareType.fields)
32 if node.get('location'):
33 node_elem.add_instance('location', node['location'], Location.fields)
35 if node.get('interfaces'):
36 for interface in node.get('interfaces', []):
37 node_elem.add_instance('interface', interface, ['component_id', 'client_id', 'ipv4'])
38 # set available element
39 if node.get('boot_state') and node.get('boot_state').lower() == 'boot':
40 available_elem = node_elem.add_element('available', now='True')
42 available_elem = node_elem.add_element('available', now='False')
44 PGv2Services.add_services(node_elem, node.get('services', []))
46 slivers = node.get('slivers', [])
48 # we must still advertise the available sliver types
49 slivers = Sliver({'type': 'plab-vserver'})
50 # we must also advertise the available initscripts
52 if node.get('pl_initscripts'):
53 for initscript in node.get('pl_initscripts', []):
54 slivers['tags'].append({'name': 'initscript', 'value': initscript['name']})
55 PGv2SliverType.add_slivers(node_elem, slivers)
60 def get_nodes(xml, filter={}):
61 xpath = '//node%s | //default:node%s' % (XpathFilter.xpath(filter), XpathFilter.xpath(filter))
62 node_elems = xml.xpath(xpath)
63 return PGv2Node.get_node_objs(node_elems)
66 def get_nodes_with_slivers(xml, filter={}):
67 xpath = '//node[count(sliver_type)>0] | //default:node[count(default:sliver_type) > 0]'
68 node_elems = xml.xpath(xpath)
69 return PGv2Node.get_node_objs(node_elems)
72 def get_node_objs(node_elems):
74 for node_elem in node_elems:
75 node = Node(node_elem.attrib, node_elem)
77 if 'component_id' in node_elem.attrib:
78 node['authority_id'] = Xrn(node_elem.attrib['component_id']).get_authority_urn()
81 hardware_type_elems = node_elem.xpath('./default:hardwate_type | ./hardware_type')
82 node['hardware_types'] = [hw_type.get_instnace(HardwareType) for hw_type in hardware_type_elems]
85 location_elems = node_elem.xpath('./default:location | ./location')
86 locations = [location_elem.get_instance(Location) for location_elem in location_elems]
87 if len(locations) > 0:
88 node['location'] = locations[0]
91 iface_elems = node_elem.xpath('./default:interface | ./interface')
92 node['interfaces'] = [iface_elem.get_instance(Interface) for iface_elem in iface_elems]
95 node['services'] = PGv2Services.get_services(node_elem)
98 node['slivers'] = PGv2SliverType.get_slivers(node_elem)
99 available_elems = node_elem.xpath('./default:available | ./available')
100 if len(available_elems) > 0 and 'name' in available_elems[0].attrib:
101 if available_elems[0].attrib.get('now', '').lower() == 'true':
102 node['boot_state'] = 'boot'
104 node['boot_state'] = 'disabled'
109 def add_slivers(xml, slivers):
111 for sliver in slivers:
113 if isinstance(sliver, str):
114 filter['component_id'] = '*%s*' % sliver
116 elif 'component_id' in sliver and sliver['component_id']:
117 filter['component_id'] = '*%s*' % sliver['component_id']
120 nodes = PGv2Node.get_nodes(xml, filter)
124 PGv2SliverType.add_slivers(node, sliver)
127 def remove_slivers(xml, hostnames):
128 for hostname in hostnames:
129 nodes = PGv2Node.get_nodes(xml, {'component_id': '*%s*' % hostname})
131 slivers = PGv2SliverType.get_slivers(node.element)
132 for sliver in slivers:
133 node.element.remove(sliver.element)
134 if __name__ == '__main__':
135 from sfa.rspecs.rspec import RSpec
137 r = RSpec('/tmp/emulab.rspec')
138 r2 = RSpec(version = 'ProtoGENI')
139 nodes = PGv2Node.get_nodes(r.xml)
140 PGv2Node.add_nodes(r2.xml.root, nodes)