1 from sfa.util.xrn import Xrn
2 from sfa.util.xml import XpathFilter
4 from sfa.rspecs.elements.node import NodeElement
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
14 from sfa.rspecs.elements.versions.pgv2Interface import PGv2Interface
15 from sfa.rspecs.elements.versions.sfav1PLTag import SFAv1PLTag
16 from sfa.rspecs.elements.granularity import Granularity
17 from sfa.rspecs.elements.attribute import Attribute
19 from sfa.planetlab.plxrn import xrn_to_hostname
23 def add_nodes(xml, nodes):
26 node_fields = ['component_manager_id', 'component_id', 'client_id', 'sliver_id', 'exclusive']
27 node_elem = xml.add_instance('node', node, node_fields)
28 node_elems.append(node_elem)
30 if node.get('component_id'):
31 component_name = xrn_to_hostname(node['component_id'])
32 node_elem.set('component_name', component_name)
34 if node.get('hardware_types'):
35 for hardware_type in node.get('hardware_types', []):
36 node_elem.add_instance('hardware_type', hardware_type, HardwareType.fields)
38 if node.get('location'):
39 node_elem.add_instance('location', node['location'], Location.fields)
42 if node['exclusive'] == "true":
43 granularity = node.get('granularity')
44 node_elem.add_instance('granularity', granularity, granularity.fields)
46 PGv2Interface.add_interfaces(node_elem, node.get('interfaces'))
47 #if node.get('interfaces'):
48 # for interface in node.get('interfaces', []):
49 # node_elem.add_instance('interface', interface, ['component_id', 'client_id'])
50 # set available element
51 if node.get('available'):
52 available_elem = node_elem.add_element('available', now=node['available'])
54 PGv2Services.add_services(node_elem, node.get('services', []))
56 slivers = node.get('slivers', [])
58 # we must still advertise the available sliver types
59 slivers = Sliver({'type': 'plab-vserver'})
60 # we must also advertise the available initscripts
62 if node.get('pl_initscripts'):
63 for initscript in node.get('pl_initscripts', []):
64 slivers['tags'].append({'name': 'initscript', 'value': initscript['name']})
65 PGv2SliverType.add_slivers(node_elem, slivers)
67 # advertise the node tags
68 tags = node.get('tags', [])
71 tag['name'] = tag.pop('tagname')
72 node_elem.add_instance('{%s}attribute' % xml.namespaces['planetlab'], tag, ['name', 'value'])
78 def get_nodes(xml, filter={}):
79 xpath = '//node%s | //default:node%s' % (XpathFilter.xpath(filter), XpathFilter.xpath(filter))
80 node_elems = xml.xpath(xpath)
81 return PGv2Node.get_node_objs(node_elems)
84 def get_nodes_with_slivers(xml, filter={}):
85 xpath = '//node[count(sliver_type)>0] | //default:node[count(default:sliver_type) > 0]'
86 node_elems = xml.xpath(xpath)
87 return PGv2Node.get_node_objs(node_elems)
90 def get_node_objs(node_elems):
92 for node_elem in node_elems:
93 node = NodeElement(node_elem.attrib, node_elem)
95 if 'component_id' in node_elem.attrib:
96 node['authority_id'] = Xrn(node_elem.attrib['component_id']).get_authority_urn()
99 hardware_type_elems = node_elem.xpath('./default:hardware_type | ./hardware_type')
100 node['hardware_types'] = [hw_type.get_instance(HardwareType) for hw_type in hardware_type_elems]
103 location_elems = node_elem.xpath('./default:location | ./location')
104 locations = [location_elem.get_instance(Location) for location_elem in location_elems]
105 if len(locations) > 0:
106 node['location'] = locations[0]
109 granularity_elems = node_elem.xpath('./default:granularity | ./granularity')
110 if len(granularity_elems) > 0:
111 node['granularity'] = granularity_elems[0].get_instance(Granularity)
114 iface_elems = node_elem.xpath('./default:interface | ./interface')
115 node['interfaces'] = [iface_elem.get_instance(Interface) for iface_elem in iface_elems]
118 node['services'] = PGv2Services.get_services(node_elem)
121 node['slivers'] = PGv2SliverType.get_slivers(node_elem)
124 available_elems = node_elem.xpath('./default:available | ./available')
125 if len(available_elems) > 0 and 'now' in available_elems[0].attrib:
126 if available_elems[0].attrib.get('now', '').lower() == 'true':
127 node['boot_state'] = 'boot'
129 node['boot_state'] = 'disabled'
132 node['pl_initscripts'] = []
133 initscript_elems = node_elem.xpath('./default:sliver_type/planetlab:initscript | ./sliver_type/initscript')
134 if len(initscript_elems) > 0:
135 for initscript_elem in initscript_elems:
136 if 'name' in initscript_elem.attrib:
137 node['pl_initscripts'].append(initscript_elem.attrib)
140 tag_elems = node_elem.xpath('./planetlab:attribute | ./attribute')
142 if len(tag_elems) > 0:
143 for tag_elem in tag_elems:
144 tag = tag_elem.get_instance(Attribute)
145 tag['tagname'] = tag.pop('name')
146 node['tags'].append(tag)
151 def add_slivers(xml, slivers):
153 for sliver in slivers:
155 if isinstance(sliver, str):
156 filter['component_id'] = '*%s*' % sliver
158 elif 'component_id' in sliver and sliver['component_id']:
159 filter['component_id'] = '*%s*' % sliver['component_id']
162 nodes = PGv2Node.get_nodes(xml, filter)
166 PGv2SliverType.add_slivers(node, sliver)
169 def remove_slivers(xml, hostnames):
170 for hostname in hostnames:
171 nodes = PGv2Node.get_nodes(xml, {'component_id': '*%s*' % hostname})
173 slivers = PGv2SliverType.get_slivers(node.element)
174 for sliver in slivers:
175 node.element.remove(sliver.element)
176 if __name__ == '__main__':
177 from sfa.rspecs.rspec import RSpec
179 r = RSpec('/tmp/emulab.rspec')
180 r2 = RSpec(version = 'ProtoGENI')
181 nodes = PGv2Node.get_nodes(r.xml)
182 PGv2Node.add_nodes(r2.xml.root, nodes)