1 from sfa.util.xrn import Xrn
2 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
15 from sfa.planetlab.plxrn import xrn_to_hostname
19 def add_nodes(xml, nodes):
22 node_fields = ['component_manager_id', 'component_id', 'client_id', 'sliver_id', 'exclusive']
23 node_elem = xml.add_instance('node', node, node_fields)
24 node_elems.append(node_elem)
26 if node.get('component_id'):
27 component_name = xrn_to_hostname(node['component_id'])
28 node_elem.set('component_name', component_name)
30 if node.get('hardware_types'):
31 for hardware_type in node.get('hardware_types', []):
32 node_elem.add_instance('hardware_type', hardware_type, HardwareType.fields)
34 if node.get('location'):
35 node_elem.add_instance('location', node['location'], Location.fields)
37 if node.get('interfaces'):
38 for interface in node.get('interfaces', []):
39 node_elem.add_instance('interface', interface, ['component_id', 'client_id'])
40 # set available element
41 if node.get('boot_state'):
42 if node.get('boot_state').lower() == 'boot':
43 available_elem = node_elem.add_element('available', now='true')
45 available_elem = node_elem.add_element('available', now='false')
47 PGv2Services.add_services(node_elem, node.get('services', []))
49 slivers = node.get('slivers', [])
51 # we must still advertise the available sliver types
52 slivers = Sliver({'type': 'plab-vserver'})
53 # we must also advertise the available initscripts
55 if node.get('pl_initscripts'):
56 for initscript in node.get('pl_initscripts', []):
57 slivers['tags'].append({'name': 'initscript', 'value': initscript['name']})
58 PGv2SliverType.add_slivers(node_elem, slivers)
63 def get_nodes(xml, filter={}):
64 xpath = '//node%s | //default:node%s' % (XpathFilter.xpath(filter), XpathFilter.xpath(filter))
65 node_elems = xml.xpath(xpath)
66 return PGv2Node.get_node_objs(node_elems)
69 def get_nodes_with_slivers(xml, filter={}):
70 xpath = '//node[count(sliver_type)>0] | //default:node[count(default:sliver_type) > 0]'
71 node_elems = xml.xpath(xpath)
72 return PGv2Node.get_node_objs(node_elems)
75 def get_node_objs(node_elems):
77 for node_elem in node_elems:
78 node = Node(node_elem.attrib, node_elem)
80 if 'component_id' in node_elem.attrib:
81 node['authority_id'] = Xrn(node_elem.attrib['component_id']).get_authority_urn()
84 hardware_type_elems = node_elem.xpath('./default:hardware_type | ./hardware_type')
85 node['hardware_types'] = [hw_type.get_instance(HardwareType) for hw_type in hardware_type_elems]
88 location_elems = node_elem.xpath('./default:location | ./location')
89 locations = [location_elem.get_instance(Location) for location_elem in location_elems]
90 if len(locations) > 0:
91 node['location'] = locations[0]
94 iface_elems = node_elem.xpath('./default:interface | ./interface')
95 node['interfaces'] = [iface_elem.get_instance(Interface) for iface_elem in iface_elems]
98 node['services'] = PGv2Services.get_services(node_elem)
101 node['slivers'] = PGv2SliverType.get_slivers(node_elem)
102 available_elems = node_elem.xpath('./default:available | ./available')
103 if len(available_elems) > 0 and 'name' in available_elems[0].attrib:
104 if available_elems[0].attrib.get('now', '').lower() == 'true':
105 node['boot_state'] = 'boot'
107 node['boot_state'] = 'disabled'
112 def add_slivers(xml, slivers):
114 for sliver in slivers:
116 if isinstance(sliver, str):
117 filter['component_id'] = '*%s*' % sliver
119 elif 'component_id' in sliver and sliver['component_id']:
120 filter['component_id'] = '*%s*' % sliver['component_id']
123 nodes = PGv2Node.get_nodes(xml, filter)
127 PGv2SliverType.add_slivers(node, sliver)
130 def remove_slivers(xml, hostnames):
131 for hostname in hostnames:
132 nodes = PGv2Node.get_nodes(xml, {'component_id': '*%s*' % hostname})
134 slivers = PGv2SliverType.get_slivers(node.element)
135 for sliver in slivers:
136 node.element.remove(sliver.element)
137 if __name__ == '__main__':
138 from sfa.rspecs.rspec import RSpec
140 r = RSpec('/tmp/emulab.rspec')
141 r2 = RSpec(version = 'ProtoGENI')
142 nodes = PGv2Node.get_nodes(r.xml)
143 PGv2Node.add_nodes(r2.xml.root, nodes)