1 from sfa.planetlab.plxrn import 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
9 from sfa.rspecs.elements.interface import Interface
11 from sfa.rspecs.elements.versions.slabv1Sliver import Slabv1Sliver
12 from sfa.util.sfalogging import logger
15 #First get the fields already defined in the class Node
16 fields = list(Node.fields)
17 #Extend it with senslab's specific fields
18 fields.extend (['archi','radio','mobile'])
23 def add_nodes(xml, nodes):
24 #Add network item in the xml
25 network_elems = xml.xpath('//network')
26 if len(network_elems) > 0:
27 network_elem = network_elems[0]
28 elif len(nodes) > 0 and nodes[0].get('component_manager_id'):
29 network_urn = nodes[0]['component_manager_id']
30 network_elem = xml.add_element('network', name = Xrn(network_urn).get_hrn())
34 logger.debug("slabv1Node \t add_nodes nodes %s"%(nodes))
36 #Then add nodes items to the network item in the xml
38 node_fields = ['component_manager_id', 'component_id', 'exclusive',\
39 'boot_state', 'mobile']
40 node_elem = network_elem.add_instance('node', node, node_fields)
41 node_elems.append(node_elem)
43 if node.get('component_id'):
44 component_name = xrn_to_hostname(node['component_id'])
45 node_elem.set('component_name', component_name)
47 if node.get('hardware_types'):
48 for hardware_type in node.get('hardware_types', []):
49 fields = HardwareType.fields
50 fields.extend(['archi','radio'])
51 node_elem.add_instance('hardware_type', node, fields)
54 if node.get('location'):
55 node_elem.add_instance('location', node['location'], \
57 # add granularity of the reservation system
58 granularity = node.get('granularity')
60 node_elem.add_instance('granularity', granularity, granularity.fields)
63 #if node.get('interfaces'):
64 #for interface in node.get('interfaces', []):
65 #node_elem.add_instance('interface', interface, ['component_id', 'client_id'])
66 # set available element
67 if node.get('boot_state'):
68 if node.get('boot_state').lower() == 'alive':
69 available_elem = node_elem.add_element('available', \
72 available_elem = node_elem.add_element('available', \
76 #if node.get('archi'):
77 #archi_elem = node_elem.add_instance('archi',node.get('archi') , ['archi'])
80 #if node.get('radio'):
81 #radio_elem = node_elem.add_instance('radio', node.get('radio') , ['radio'])
84 #PGv2Services.add_services(node_elem, node.get('services', []))
86 slivers = node.get('slivers', [])
88 # we must still advertise the available sliver types
89 slivers = Sliver({'type': 'slab-node'})
90 # we must also advertise the available initscripts
92 #if node.get('pl_initscripts'):
93 #for initscript in node.get('pl_initscripts', []):
94 #slivers['tags'].append({'name': 'initscript', \
95 #'value': initscript['name']})
97 Slabv1Sliver.add_slivers(node_elem, slivers)
101 def get_nodes(xml, filter={}):
102 xpath = '//node%s | //default:node%s' % (XpathFilter.xpath(filter), \
103 XpathFilter.xpath(filter))
104 node_elems = xml.xpath(xpath)
105 logger.debug("SLABV1NODE \tget_nodes \tnode_elems %s"%(node_elems))
106 return Slabv1Node.get_node_objs(node_elems)
109 def get_nodes_with_slivers(xml, sliver_filter={}):
111 xpath = '//node[count(sliver)>0] | \
112 //default:node[count(default:sliver) > 0]'
113 node_elems = xml.xpath(xpath)
114 logger.debug("SLABV1NODE \tget_nodes_with_slivers \
115 node_elems %s"%(node_elems))
116 return Slabv1Node.get_node_objs(node_elems)
119 def get_node_objs(node_elems):
121 for node_elem in node_elems:
122 node = Node(node_elem.attrib, node_elem)
124 if 'component_id' in node_elem.attrib:
125 node['authority_id'] = \
126 Xrn(node_elem.attrib['component_id']).get_authority_urn()
129 hardware_type_elems = node_elem.xpath('./default:hardware_type | \
131 node['hardware_types'] = [hw_type.get_instance(HardwareType) \
132 for hw_type in hardware_type_elems]
135 location_elems = node_elem.xpath('./default:location | ./location')
136 locations = [location_elem.get_instance(Location) \
137 for location_elem in location_elems]
138 if len(locations) > 0:
139 node['location'] = locations[0]
142 iface_elems = node_elem.xpath('./default:interface | ./interface')
143 node['interfaces'] = [iface_elem.get_instance(Interface) \
144 for iface_elem in iface_elems]
147 #node['services'] = PGv2Services.get_services(node_elem)
150 node['slivers'] = Slabv1Sliver.get_slivers(node_elem)
151 available_elems = node_elem.xpath('./default:available | \
153 if len(available_elems) > 0 and 'name' in available_elems[0].attrib:
154 if available_elems[0].attrib.get('now', '').lower() == 'true':
155 node['boot_state'] = 'boot'
157 node['boot_state'] = 'disabled'
162 def add_slivers(xml, slivers):
163 logger.debug("SLABv1NODE \tadd_slivers ")
165 for sliver in slivers:
167 if isinstance(sliver, str):
168 filter_sliver['component_id'] = '*%s*' % sliver
170 elif 'component_id' in sliver and sliver['component_id']:
171 filter_sliver['component_id'] = '*%s*' % sliver['component_id']
172 if not filter_sliver:
174 nodes = Slabv1Node.get_nodes(xml, filter_sliver)
178 Slabv1Sliver.add_slivers(node, sliver)
181 def remove_slivers(xml, hostnames):
182 for hostname in hostnames:
183 nodes = Slabv1Node.get_nodes(xml, \
184 {'component_id': '*%s*' % hostname})
186 slivers = Slabv1Sliver.get_slivers(node.element)
187 for sliver in slivers:
188 node.element.remove(sliver.element)