2 from sfa.util.xrn import Xrn
3 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.element import Element
9 from sfa.rspecs.elements.interface import Interface
10 from sfa.rspecs.elements.versions.iotlabv1Sliver import Iotlabv1Sliver
11 from sfa.util.sfalogging import logger
13 class IotlabNode(NodeElement):
14 #First get the fields already defined in the class Node
15 fields = list(NodeElement.fields)
16 #Extend it with iotlab's specific fields
17 fields.extend (['archi', 'radio', 'mobile','position'])
20 class IotlabPosition(Element):
21 fields = ['posx', 'posy','posz']
23 class IotlabLocation(Location):
24 fields = list(Location.fields)
25 fields.extend (['site'])
33 def add_connection_information(xml, ldap_username, sites_set):
34 """ Adds login and ssh connection info in the network item in
35 the xml. Does not create the network element, therefore
36 should be used after add_nodes, which creates the network item.
39 logger.debug(" add_connection_information " )
40 #Get network item in the xml
41 network_elems = xml.xpath('//network')
42 if len(network_elems) > 0:
43 network_elem = network_elems[0]
45 iotlab_network_dict = {}
46 iotlab_network_dict['login'] = ldap_username
48 iotlab_network_dict['ssh'] = \
49 ['ssh ' + ldap_username + '@'+site+'.iotlab.info' \
50 for site in sites_set]
51 network_elem.set('ssh', \
52 unicode(iotlab_network_dict['ssh']))
53 network_elem.set('login', unicode( iotlab_network_dict['login']))
57 def add_nodes(xml, nodes):
58 #Add network item in the xml
59 network_elems = xml.xpath('//network')
60 if len(network_elems) > 0:
61 network_elem = network_elems[0]
62 elif len(nodes) > 0 and nodes[0].get('component_manager_id'):
63 network_urn = nodes[0]['component_manager_id']
64 network_elem = xml.add_element('network', \
65 name = Xrn(network_urn).get_hrn())
69 logger.debug("iotlabv1Node \t add_nodes nodes %s \r\n "%(nodes[0]))
71 #Then add nodes items to the network item in the xml
73 #Attach this node to the network element
74 node_fields = ['component_manager_id', 'component_id', 'exclusive',\
75 'boot_state', 'mobile']
76 node_elem = network_elem.add_instance('node', node, node_fields)
77 node_elems.append(node_elem)
79 #Set the attibutes of this node element
80 for attribute in node:
82 if attribute is 'component_id':
83 component_name = node['component_name']
84 node_elem.set('component_name', component_name)
86 # set hardware types, extend fields to add Iotlab's architecture
89 if attribute is 'hardware_types':
90 for hardware_type in node.get('hardware_types', []):
91 fields = HardwareType.fields
92 fields.extend(['archi','radio'])
93 node_elem.add_instance('hardware_types', node, fields)
96 if attribute is 'location':
97 node_elem.add_instance('location', node['location'], \
98 IotlabLocation.fields)
99 # add granularity of the reservation system
100 #TODO put the granularity in network instead SA 18/07/12
101 if attribute is 'granularity' :
102 granularity = node['granularity']
104 node_elem.add_instance('granularity', \
105 granularity, granularity.fields)
108 # set available element
109 if attribute is 'boot_state':
110 if node.get('boot_state').lower() == 'alive':
111 available_elem = node_elem.add_element('available', \
114 available_elem = node_elem.add_element('available', \
118 if attribute is 'position':
119 node_elem.add_instance('position', node['position'], \
120 IotlabPosition.fields)
122 #PGv2Services.add_services(node_elem, node.get('services', []))
124 if attribute is 'slivers':
125 slivers = node.get('slivers', [])
127 # we must still advertise the available sliver types
128 slivers = Sliver({'type': 'iotlab-node'})
129 # we must also advertise the available initscripts
130 #slivers['tags'] = []
131 #if node.get('pl_initscripts'):
132 #for initscript in node.get('pl_initscripts', []):
133 #slivers['tags'].append({'name': 'initscript', \
134 #'value': initscript['name']})
136 Iotlabv1Sliver.add_slivers(node_elem, slivers)
142 def get_nodes(xml, filter={}):
143 xpath = '//node%s | //default:node%s' % (XpathFilter.xpath(filter), \
144 XpathFilter.xpath(filter))
145 node_elems = xml.xpath(xpath)
146 return Iotlabv1Node.get_node_objs(node_elems)
149 def get_nodes_with_slivers(xml, sliver_filter={}):
151 xpath = '//node[count(sliver)>0] | \
152 //default:node[count(default:sliver) > 0]'
153 node_elems = xml.xpath(xpath)
154 logger.debug("SLABV1NODE \tget_nodes_with_slivers \
155 node_elems %s"%(node_elems))
156 return Iotlabv1Node.get_node_objs(node_elems)
159 def get_node_objs(node_elems):
161 for node_elem in node_elems:
162 node = NodeElement(node_elem.attrib, node_elem)
164 if 'component_id' in node_elem.attrib:
165 node['authority_id'] = \
166 Xrn(node_elem.attrib['component_id']).get_authority_urn()
169 hardware_type_elems = node_elem.xpath('./default:hardware_type | \
171 node['hardware_types'] = [hw_type.get_instance(HardwareType) \
172 for hw_type in hardware_type_elems]
175 location_elems = node_elem.xpath('./default:location | ./location')
176 locations = [location_elem.get_instance(Location) \
177 for location_elem in location_elems]
178 if len(locations) > 0:
179 node['location'] = locations[0]
183 iface_elems = node_elem.xpath('./default:interface | ./interface')
184 node['interfaces'] = [iface_elem.get_instance(Interface) \
185 for iface_elem in iface_elems]
188 position_elems = node_elem.xpath('./default:position | ./position')
190 position_elem = position_elems[0]
191 node['position'] = position_elem.get_instance(IotlabPosition)
194 #node['services'] = PGv2Services.get_services(node_elem)
197 node['slivers'] = Iotlabv1Sliver.get_slivers(node_elem)
198 available_elems = node_elem.xpath('./default:available | \
200 if len(available_elems) > 0 and 'name' in available_elems[0].attrib:
201 if available_elems[0].attrib.get('now', '').lower() == 'true':
202 node['boot_state'] = 'boot'
204 node['boot_state'] = 'disabled'
206 logger.debug("SLABV1NODE \tget_nodes_objs \
212 def add_slivers(xml, slivers):
213 logger.debug("Iotlabv1NODE \tadd_slivers ")
215 for sliver in slivers:
217 if isinstance(sliver, str):
218 filter_sliver['component_id'] = '*%s*' % sliver
220 elif 'component_id' in sliver and sliver['component_id']:
221 filter_sliver['component_id'] = '*%s*' % sliver['component_id']
222 if not filter_sliver:
224 nodes = Iotlabv1Node.get_nodes(xml, filter_sliver)
228 Iotlabv1Sliver.add_slivers(node, sliver)
231 def remove_slivers(xml, hostnames):
232 for hostname in hostnames:
233 nodes = Iotlabv1Node.get_nodes(xml, \
234 {'component_id': '*%s*' % hostname})
236 slivers = Iotlabv1Sliver.get_slivers(node.element)
237 for sliver in slivers:
238 node.element.remove(sliver.element)