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
8 from sfa.rspecs.elements.element import Element
9 from sfa.rspecs.elements.interface import Interface
10 from sfa.rspecs.elements.versions.slabv1Sliver import Slabv1Sliver
11 from sfa.util.sfalogging import logger
14 #First get the fields already defined in the class Node
15 fields = list(Node.fields)
16 #Extend it with senslab's specific fields
17 fields.extend (['archi', 'radio', 'mobile','position'])
20 class SlabPosition(Element):
21 fields = ['posx', 'posy','posz']
28 def add_connection_information(xml, ldap_username):
29 """ Adds login and ssh connection info in the network item in
30 the xml. Does not create the network element, therefore
31 should be used after add_nodes, which creates the network item.
34 logger.debug(" add_connection_information " )
35 #Get network item in the xml
36 network_elems = xml.xpath('//network')
37 if len(network_elems) > 0:
38 network_elem = network_elems[0]
40 slab_network_dict = {}
41 slab_network_dict['login'] = ldap_username
42 slab_network_dict['vm'] = 'ssh ' + ldap_username + \
43 '@grenoble.senslab.info'
44 network_elem.set('vm', unicode(slab_network_dict['vm']))
45 network_elem.set('login', unicode( slab_network_dict['login']))
49 def add_nodes(xml, nodes):
50 #Add network item in the xml
51 network_elems = xml.xpath('//network')
52 if len(network_elems) > 0:
53 network_elem = network_elems[0]
54 elif len(nodes) > 0 and nodes[0].get('component_manager_id'):
55 network_urn = nodes[0]['component_manager_id']
56 network_elem = xml.add_element('network', \
57 name = Xrn(network_urn).get_hrn())
61 #logger.debug("slabv1Node \t add_nodes nodes %s \r\n "%(nodes))
63 #Then add nodes items to the network item in the xml
65 #Attach this node to the network element
66 node_fields = ['component_manager_id', 'component_id', 'exclusive',\
67 'boot_state', 'mobile']
68 node_elem = network_elem.add_instance('node', node, node_fields)
69 node_elems.append(node_elem)
71 #Set the attibutes of this node element
72 for attribute in node:
74 if attribute is 'component_id':
75 component_name = node['component_name']
76 node_elem.set('component_name', component_name)
78 # set hardware types, extend fields to add Senslab's architecture
81 if attribute is 'hardware_types':
82 for hardware_type in node.get('hardware_types', []):
83 fields = HardwareType.fields
84 fields.extend(['archi','radio'])
85 node_elem.add_instance('hardware_types', node, fields)
88 if attribute is 'location':
89 node_elem.add_instance('location', node['location'], \
91 # add granularity of the reservation system
92 #TODO put the granularity in network instead SA 18/07/12
93 if attribute is 'granularity' :
94 granularity = node['granularity']
96 node_elem.add_instance('granularity', \
97 granularity, granularity.fields)
100 # set available element
101 if attribute is 'boot_state':
102 if node.get('boot_state').lower() == 'alive':
103 available_elem = node_elem.add_element('available', \
106 available_elem = node_elem.add_element('available', \
110 if attribute is 'position':
111 node_elem.add_instance('position', node['position'], \
114 #PGv2Services.add_services(node_elem, node.get('services', []))
116 if attribute is 'slivers':
117 slivers = node.get('slivers', [])
119 # we must still advertise the available sliver types
120 slivers = Sliver({'type': 'slab-node'})
121 # we must also advertise the available initscripts
122 #slivers['tags'] = []
123 #if node.get('pl_initscripts'):
124 #for initscript in node.get('pl_initscripts', []):
125 #slivers['tags'].append({'name': 'initscript', \
126 #'value': initscript['name']})
128 Slabv1Sliver.add_slivers(node_elem, slivers)
134 def get_nodes(xml, filter={}):
135 xpath = '//node%s | //default:node%s' % (XpathFilter.xpath(filter), \
136 XpathFilter.xpath(filter))
137 node_elems = xml.xpath(xpath)
138 return Slabv1Node.get_node_objs(node_elems)
141 def get_nodes_with_slivers(xml, sliver_filter={}):
143 xpath = '//node[count(sliver)>0] | \
144 //default:node[count(default:sliver) > 0]'
145 node_elems = xml.xpath(xpath)
146 logger.debug("SLABV1NODE \tget_nodes_with_slivers \
147 node_elems %s"%(node_elems))
148 return Slabv1Node.get_node_objs(node_elems)
151 def get_node_objs(node_elems):
153 for node_elem in node_elems:
154 node = Node(node_elem.attrib, node_elem)
156 if 'component_id' in node_elem.attrib:
157 node['authority_id'] = \
158 Xrn(node_elem.attrib['component_id']).get_authority_urn()
161 hardware_type_elems = node_elem.xpath('./default:hardware_type | \
163 node['hardware_types'] = [hw_type.get_instance(HardwareType) \
164 for hw_type in hardware_type_elems]
167 location_elems = node_elem.xpath('./default:location | ./location')
168 locations = [location_elem.get_instance(Location) \
169 for location_elem in location_elems]
170 if len(locations) > 0:
171 node['location'] = locations[0]
174 iface_elems = node_elem.xpath('./default:interface | ./interface')
175 node['interfaces'] = [iface_elem.get_instance(Interface) \
176 for iface_elem in iface_elems]
179 #node['services'] = PGv2Services.get_services(node_elem)
182 node['slivers'] = Slabv1Sliver.get_slivers(node_elem)
183 available_elems = node_elem.xpath('./default:available | \
185 if len(available_elems) > 0 and 'name' in available_elems[0].attrib:
186 if available_elems[0].attrib.get('now', '').lower() == 'true':
187 node['boot_state'] = 'boot'
189 node['boot_state'] = 'disabled'
191 logger.debug("SLABV1NODE \tget_nodes_objs \
197 def add_slivers(xml, slivers):
198 logger.debug("SLABv1NODE \tadd_slivers ")
200 for sliver in slivers:
202 if isinstance(sliver, str):
203 filter_sliver['component_id'] = '*%s*' % sliver
205 elif 'component_id' in sliver and sliver['component_id']:
206 filter_sliver['component_id'] = '*%s*' % sliver['component_id']
207 if not filter_sliver:
209 nodes = Slabv1Node.get_nodes(xml, filter_sliver)
213 Slabv1Sliver.add_slivers(node, sliver)
216 def remove_slivers(xml, hostnames):
217 for hostname in hostnames:
218 nodes = Slabv1Node.get_nodes(xml, \
219 {'component_id': '*%s*' % hostname})
221 slivers = Slabv1Sliver.get_slivers(node.element)
222 for sliver in slivers:
223 node.element.remove(sliver.element)