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
14 class IotlabNode(NodeElement):
15 # First get the fields already defined in the class Node
16 fields = list(NodeElement.fields)
17 # Extend it with iotlab's specific fields
18 fields.extend(['archi', 'radio', 'mobile', 'position'])
21 class IotlabPosition(Element):
22 fields = ['x', 'y', 'z']
25 class IotlabLocation(Location):
26 fields = list(Location.fields)
27 fields.extend(['site'])
30 class IotlabMobility(Element):
31 """ Class to give information of a node's mobility, and what kind of
32 mobility it is (train, roomba robot ...) """
33 fields = ['mobile', 'mobility_type']
39 def add_connection_information(xml, ldap_username, sites_set):
40 """ Adds login and ssh connection info in the network item in
41 the xml. Does not create the network element, therefore
42 should be used after add_nodes, which creates the network item.
45 logger.debug(" add_connection_information ")
46 # Get network item in the xml
47 network_elems = xml.xpath('//network')
48 if len(network_elems) > 0:
49 network_elem = network_elems[0]
51 iotlab_network_dict = {}
52 iotlab_network_dict['login'] = ldap_username
54 iotlab_network_dict['ssh'] = \
55 ['ssh ' + ldap_username + '@' + site + '.iotlab.info'
56 for site in sites_set]
57 network_elem.set('ssh',
58 unicode(iotlab_network_dict['ssh']))
59 network_elem.set('login', unicode(iotlab_network_dict['login']))
62 def add_nodes(xml, nodes, rspec_content_type=None):
63 """Adds the nodes to the xml.
65 Adds the nodes as well as dedicated iotlab fields to the node xml
68 :param xml: the xml being constructed.
70 :param nodes: list of node dict
72 :returns: a list of node elements.
76 # Add network item in the xml
77 network_elems = xml.xpath('//network')
78 if len(network_elems) > 0:
79 network_elem = network_elems[0]
80 elif len(nodes) > 0 and nodes[0].get('component_manager_id'):
81 network_urn = nodes[0]['component_manager_id']
82 network_elem = xml.add_element('network',
83 name=Xrn(network_urn).get_hrn())
88 # Then add nodes items to the network item in the xml
90 # Attach this node to the network element
91 node_fields = ['component_manager_id', 'component_id', 'exclusive',
92 'boot_state', 'mobile']
93 node_elem = network_elem.add_instance('node', node, node_fields)
94 node_elems.append(node_elem)
96 # Set the attibutes of this node element
97 for attribute in node:
99 if attribute is 'component_name':
100 component_name = node['component_name']
101 node_elem.set('component_name', component_name)
103 # set hardware types, extend fields to add Iotlab's architecture
106 if attribute is 'hardware_types':
107 for hardware_type in node.get('hardware_types', []):
108 fields = HardwareType.fields
109 fields.extend(['archi', 'radio'])
110 node_elem.add_instance('hardware_types', node, fields)
113 if attribute is 'mobility':
114 node_elem.add_instance('mobility', node['mobility'],
115 IotlabMobility.fields)
117 if attribute is 'location':
118 node_elem.add_instance('location', node['location'],
119 IotlabLocation.fields)
121 # add granularity of the reservation system
122 # TODO put the granularity in network instead SA 18/07/12
123 if attribute is 'granularity':
124 granularity = node['granularity']
126 node_elem.add_instance('granularity',
127 granularity, granularity.fields)
129 # set available element
130 if attribute is 'boot_state':
131 if node.get('boot_state').lower() == 'alive':
132 available_elem = node_elem.add_element('available',
135 available_elem = node_elem.add_element('available',
139 if attribute is 'position':
140 node_elem.add_instance('position', node['position'],
141 IotlabPosition.fields)
143 #PGv2Services.add_services(node_elem, node.get('services', []))
145 if attribute is 'slivers':
146 slivers = node.get('slivers', [])
148 # we must still advertise the available sliver types
149 slivers = Sliver({'type': 'iotlab-node'})
150 # we must also advertise the available initscripts
151 #slivers['tags'] = []
152 # if node.get('pl_initscripts'):
153 # for initscript in node.get('pl_initscripts', []):
154 # slivers['tags'].append({'name': 'initscript', \
155 #'value': initscript['name']})
157 Iotlabv1Sliver.add_slivers(node_elem, slivers)
158 # add sliver tag in Request Rspec
159 if rspec_content_type == "request":
160 node_elem.add_instance('sliver', '', [])
164 def get_nodes(xml, filter=None):
167 xpath = '//node%s | //default:node%s' % (XpathFilter.xpath(filter),
168 XpathFilter.xpath(filter))
169 node_elems = xml.xpath(xpath)
170 return Iotlabv1Node.get_node_objs(node_elems)
173 def get_nodes_with_slivers(xml, sliver_filter=None):
174 if sliver_filter is None:
177 xpath = '//node[count(sliver)>0] | \
178 //default:node[count(default:sliver) > 0]'
179 node_elems = xml.xpath(xpath)
180 logger.debug("SLABV1NODE \tget_nodes_with_slivers \
181 node_elems %s" % (node_elems))
182 return Iotlabv1Node.get_node_objs(node_elems)
185 def get_node_objs(node_elems):
187 for node_elem in node_elems:
188 node = NodeElement(node_elem.attrib, node_elem)
190 if 'component_id' in node_elem.attrib:
191 node['authority_id'] = \
192 Xrn(node_elem.attrib['component_id']).get_authority_urn()
195 hardware_type_elems = node_elem.xpath('./default:hardware_type | \
197 node['hardware_types'] = [hw_type.get_instance(HardwareType)
198 for hw_type in hardware_type_elems]
201 location_elems = node_elem.xpath('./default:location | ./location')
202 locations = [location_elem.get_instance(Location)
203 for location_elem in location_elems]
204 if len(locations) > 0:
205 node['location'] = locations[0]
208 iface_elems = node_elem.xpath('./default:interface | ./interface')
209 node['interfaces'] = [iface_elem.get_instance(Interface)
210 for iface_elem in iface_elems]
213 position_elems = node_elem.xpath('./default:position | ./position')
215 position_elem = position_elems[0]
216 node['position'] = position_elem.get_instance(IotlabPosition)
219 #node['services'] = PGv2Services.get_services(node_elem)
222 node['slivers'] = Iotlabv1Sliver.get_slivers(node_elem)
223 available_elems = node_elem.xpath('./default:available | \
225 if len(available_elems) > 0 and 'name' in available_elems[0].attrib:
226 if available_elems[0].attrib.get('now', '').lower() == 'true':
227 node['boot_state'] = 'boot'
229 node['boot_state'] = 'disabled'
231 logger.debug("SLABV1NODE \tget_nodes_objs \
232 #nodes %s" % (nodes))
236 def add_slivers(xml, slivers):
237 logger.debug("Iotlabv1NODE \tadd_slivers ")
239 for sliver in slivers:
241 if isinstance(sliver, str):
242 filter_sliver['component_id'] = '*%s*' % sliver
244 elif 'component_id' in sliver and sliver['component_id']:
245 filter_sliver['component_id'] = '*%s*' % sliver['component_id']
246 if not filter_sliver:
248 nodes = Iotlabv1Node.get_nodes(xml, filter_sliver)
252 Iotlabv1Sliver.add_slivers(node, sliver)
255 def remove_slivers(xml, hostnames):
256 for hostname in hostnames:
257 nodes = Iotlabv1Node.get_nodes(xml,
258 {'component_id': '*%s*' % hostname})
260 slivers = Iotlabv1Sliver.get_slivers(node.element)
261 for sliver in slivers:
262 node.element.remove(sliver.element)