sfa/rspecs/elements/versions/iotlabv1Node.py

   1
   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
  12
  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'])
  18
  19
  20 class IotlabPosition(Element):
  21     fields = ['posx', 'posy','posz']
  22
  23 class IotlabLocation(Location):
  24     fields = list(Location.fields)
  25     fields.extend (['site'])
  26
  27
  28
  29
  30 class Iotlabv1Node:
  31
  32     @staticmethod
  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.
  37
  38         """
  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]
  44
  45         iotlab_network_dict = {}
  46         iotlab_network_dict['login'] = ldap_username
  47
  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']))
  54
  55
  56     @staticmethod
  57     def add_nodes(xml, nodes, rspec_content_type=None):
  58         """Adds the nodes to the xml.
  59
  60         Adds the nodes as well as dedicated iotlab fields to the node xml
  61         element.
  62
  63         :param xml: the xml being constructed.
  64         :type xml: xml
  65         :param nodes: list of node dict
  66         :type nodes: list
  67         :returns: a list of node elements.
  68         :rtype: list
  69
  70         """
  71 >>>>>>> f7d277c... rspec.version.add_nodes take an extra arg to handle Request RSpec
  72         #Add network item in the xml
  73         network_elems = xml.xpath('//network')
  74         if len(network_elems) > 0:
  75             network_elem = network_elems[0]
  76         elif len(nodes) > 0 and nodes[0].get('component_manager_id'):
  77             network_urn = nodes[0]['component_manager_id']
  78             network_elem = xml.add_element('network', \
  79                                         name = Xrn(network_urn).get_hrn())
  80         else:
  81             network_elem = xml
  82
  83         logger.debug("iotlabv1Node \t add_nodes  nodes %s \r\n "%(nodes[0]))
  84         node_elems = []
  85         #Then add nodes items to the network item in the xml
  86         for node in nodes:
  87             #Attach this node to the network element
  88             node_fields = ['component_manager_id', 'component_id', 'exclusive',\
  89                                                     'boot_state', 'mobile']
  90             node_elem = network_elem.add_instance('node', node, node_fields)
  91             node_elems.append(node_elem)
  92
  93             #Set the attibutes of this node element
  94             for attribute in node:
  95             # set component name
  96                 if attribute is 'component_id':
  97                     component_name = node['component_name']
  98                     node_elem.set('component_name', component_name)
  99
 100             # set hardware types, extend fields to add Iotlab's architecture
 101             #and radio type
 102
 103                 if attribute is 'hardware_types':
 104                     for hardware_type in node.get('hardware_types', []):
 105                         fields = HardwareType.fields
 106                         fields.extend(['archi','radio'])
 107                         node_elem.add_instance('hardware_types', node, fields)
 108
 109             # set location
 110                 if attribute is 'location':
 111                     node_elem.add_instance('location', node['location'], \
 112                                                         IotlabLocation.fields)
 113              # add granularity of the reservation system
 114              #TODO put the granularity in network instead SA 18/07/12
 115                 if attribute is 'granularity' :
 116                     granularity = node['granularity']
 117                     if granularity:
 118                         node_elem.add_instance('granularity', \
 119                                     granularity, granularity.fields)
 120
 121
 122             # set available element
 123                 if attribute is 'boot_state':
 124                     if node.get('boot_state').lower() == 'alive':
 125                         available_elem = node_elem.add_element('available', \
 126                                                                     now='true')
 127                     else:
 128                         available_elem = node_elem.add_element('available', \
 129                                                                 now='false')
 130
 131             #set position
 132                 if attribute is 'position':
 133                     node_elem.add_instance('position', node['position'], \
 134                                                         IotlabPosition.fields)
 135             ## add services
 136             #PGv2Services.add_services(node_elem, node.get('services', []))
 137             # add slivers
 138                 if attribute is 'slivers':
 139                     slivers = node.get('slivers', [])
 140                     if not slivers:
 141                     # we must still advertise the available sliver types
 142                         slivers = Sliver({'type': 'iotlab-node'})
 143                     # we must also advertise the available initscripts
 144                     #slivers['tags'] = []
 145                     #if node.get('pl_initscripts'):
 146                         #for initscript in node.get('pl_initscripts', []):
 147                             #slivers['tags'].append({'name': 'initscript', \
 148                                                     #'value': initscript['name']})
 149
 150                     Iotlabv1Sliver.add_slivers(node_elem, slivers)
 151
 152             # add sliver tag in Request Rspec
 153             if rspec_content_type == "request":
 154                 node_elem.add_instance('sliver', '', [])
 155
 156         return node_elems
 157
 158
 159
 160     @staticmethod
 161     def get_nodes(xml, filter={}):
 162         xpath = '//node%s | //default:node%s' % (XpathFilter.xpath(filter), \
 163                                                     XpathFilter.xpath(filter))
 164         node_elems = xml.xpath(xpath)
 165         return Iotlabv1Node.get_node_objs(node_elems)
 166
 167     @staticmethod
 168     def get_nodes_with_slivers(xml, sliver_filter={}):
 169
 170         xpath = '//node[count(sliver)>0] | \
 171                                 //default:node[count(default:sliver) > 0]'
 172         node_elems = xml.xpath(xpath)
 173         logger.debug("SLABV1NODE \tget_nodes_with_slivers  \
 174                                 node_elems %s"%(node_elems))
 175         return Iotlabv1Node.get_node_objs(node_elems)
 176
 177     @staticmethod
 178     def get_node_objs(node_elems):
 179         nodes = []
 180         for node_elem in node_elems:
 181             node = NodeElement(node_elem.attrib, node_elem)
 182             nodes.append(node)
 183             if 'component_id' in node_elem.attrib:
 184                 node['authority_id'] = \
 185                     Xrn(node_elem.attrib['component_id']).get_authority_urn()
 186
 187             # get hardware types
 188             hardware_type_elems = node_elem.xpath('./default:hardware_type | \
 189                                                             ./hardware_type')
 190             node['hardware_types'] = [hw_type.get_instance(HardwareType) \
 191                                             for hw_type in hardware_type_elems]
 192
 193             # get location
 194             location_elems = node_elem.xpath('./default:location | ./location')
 195             locations = [location_elem.get_instance(Location) \
 196                                             for location_elem in location_elems]
 197             if len(locations) > 0:
 198                 node['location'] = locations[0]
 199
 200
 201             # get interfaces
 202             iface_elems = node_elem.xpath('./default:interface | ./interface')
 203             node['interfaces'] = [iface_elem.get_instance(Interface) \
 204                                             for iface_elem in iface_elems]
 205
 206             # get position
 207             position_elems = node_elem.xpath('./default:position | ./position')
 208             if position_elems:
 209                 position_elem = position_elems[0]
 210                 node['position'] = position_elem.get_instance(IotlabPosition)
 211
 212             # get services
 213             #node['services'] = PGv2Services.get_services(node_elem)
 214
 215             # get slivers
 216             node['slivers'] = Iotlabv1Sliver.get_slivers(node_elem)
 217             available_elems = node_elem.xpath('./default:available | \
 218                                                                 ./available')
 219             if len(available_elems) > 0 and 'name' in available_elems[0].attrib:
 220                 if available_elems[0].attrib.get('now', '').lower() == 'true':
 221                     node['boot_state'] = 'boot'
 222                 else:
 223                     node['boot_state'] = 'disabled'
 224
 225         logger.debug("SLABV1NODE \tget_nodes_objs  \
 226                                 #nodes %s"%(nodes))
 227         return nodes
 228
 229
 230     @staticmethod
 231     def add_slivers(xml, slivers):
 232         logger.debug("Iotlabv1NODE \tadd_slivers ")
 233         component_ids = []
 234         for sliver in slivers:
 235             filter_sliver = {}
 236             if isinstance(sliver, str):
 237                 filter_sliver['component_id'] = '*%s*' % sliver
 238                 sliver = {}
 239             elif 'component_id' in sliver and sliver['component_id']:
 240                 filter_sliver['component_id'] = '*%s*' % sliver['component_id']
 241             if not filter_sliver:
 242                 continue
 243             nodes = Iotlabv1Node.get_nodes(xml, filter_sliver)
 244             if not nodes:
 245                 continue
 246             node = nodes[0]
 247             Iotlabv1Sliver.add_slivers(node, sliver)
 248
 249     @staticmethod
 250     def remove_slivers(xml, hostnames):
 251         for hostname in hostnames:
 252             nodes = Iotlabv1Node.get_nodes(xml, \
 253                                     {'component_id': '*%s*' % hostname})
 254             for node in nodes:
 255                 slivers = Iotlabv1Sliver.get_slivers(node.element)
 256                 for sliver in slivers:
 257                     node.element.remove(sliver.element)
 258
 259
 260