sfa/rspecs/elements/versions/slabv1Node.py

   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
   8
   9 from sfa.rspecs.elements.interface import Interface
  10 from sfa.rspecs.elements.versions.slabv1Sliver import Slabv1Sliver
  11 from sfa.util.sfalogging import logger
  12
  13 class SlabNode(Node):
  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'])
  18
  19
  20 class SlabLocation(Location):
  21     fields = list(Location.fields)
  22     fields.extend (['hauteur'])
  23
  24
  25 class Slabv1Node:
  26
  27     @staticmethod
  28     def add_connection_information(xml, ldap_username):
  29         #Add network item in the xml
  30         network_elems = xml.xpath('//network')
  31         if len(network_elems) > 0:
  32             network_elem = network_elems[0]
  33
  34         slab_network_dict = {}
  35         slab_network_dict['login'] = ldap_username
  36         slab_network_dict['vm'] = 'ssh ' + ldap_username + '@grenoble.senslab.info'
  37         network_elem.set('vm', unicode(slab_network_dict['vm']))
  38         network_elem.set('login', unicode( slab_network_dict['login']))
  39         logger.debug("\r\n \r\n \r\n Slabv1Node  add_connection_information hrn %s\r\n \r\n \r\n " %(ldap_username))
  40
  41     @staticmethod
  42     def add_nodes(xml, nodes):
  43         #Add network item in the xml
  44         network_elems = xml.xpath('//network')
  45         if len(network_elems) > 0:
  46             network_elem = network_elems[0]
  47         elif len(nodes) > 0 and nodes[0].get('component_manager_id'):
  48             network_urn = nodes[0]['component_manager_id']
  49             network_elem = xml.add_element('network', name = Xrn(network_urn).get_hrn())
  50         else:
  51             network_elem = xml
  52
  53         logger.debug("slabv1Node \t add_nodes  nodes %s \r\n "%(nodes))
  54         node_elems = []
  55         #Then add nodes items to the network item in the xml
  56         for node in nodes:
  57             #Attach this node to the network element
  58             node_fields = ['component_manager_id', 'component_id', 'exclusive',\
  59                         'boot_state', 'mobile']
  60             node_elem = network_elem.add_instance('node', node, node_fields)
  61             node_elems.append(node_elem)
  62
  63             #Set the attibutes of this node element
  64             for attribute in node:
  65             # set component name
  66                 if attribute is 'component_id':
  67                     component_name = xrn_to_hostname(node['component_id'])
  68                     node_elem.set('component_name', component_name)
  69
  70             # set hardware types, extend fields to add Senslab's architecture
  71             #and radio type
  72
  73                 if attribute is 'hardware_types':
  74                     for hardware_type in node.get('hardware_types', []):
  75                         fields = HardwareType.fields
  76                         fields.extend(['archi','radio'])
  77                         node_elem.add_instance('hardware_types', node, fields)
  78
  79             # set location
  80                 if attribute is 'location':
  81                     node_elem.add_instance('location', node['location'], \
  82                                                         SlabLocation.fields)
  83              # add granularity of the reservation system
  84              #TODO put the granularity in network instead SA 18/07/12
  85                 if attribute is 'granularity' :
  86                     granularity = node['granularity']
  87                     if granularity:
  88                         node_elem.add_instance('granularity', \
  89                                     granularity, granularity.fields)
  90
  91
  92             # set available element
  93                 if attribute is 'boot_state':
  94                     if node.get('boot_state').lower() == 'alive':
  95                         available_elem = node_elem.add_element('available', \
  96                                                                     now='true')
  97                     else:
  98                         available_elem = node_elem.add_element('available', \
  99                                                                 now='false')
 100
 101
 102             ## add services
 103             #PGv2Services.add_services(node_elem, node.get('services', []))
 104             # add slivers
 105                 if attribute is 'slivers':
 106                     slivers = node.get('slivers', [])
 107                     if not slivers:
 108                     # we must still advertise the available sliver types
 109                         slivers = Sliver({'type': 'slab-node'})
 110                     # we must also advertise the available initscripts
 111                     #slivers['tags'] = []
 112                     #if node.get('pl_initscripts'):
 113                         #for initscript in node.get('pl_initscripts', []):
 114                             #slivers['tags'].append({'name': 'initscript', \
 115                                                     #'value': initscript['name']})
 116
 117                     Slabv1Sliver.add_slivers(node_elem, slivers)
 118         return node_elems
 119
 120
 121
 122     @staticmethod
 123     def get_nodes(xml, filter={}):
 124         xpath = '//node%s | //default:node%s' % (XpathFilter.xpath(filter), \
 125                                                     XpathFilter.xpath(filter))
 126         node_elems = xml.xpath(xpath)
 127         #logger.debug("SLABV1NODE  \tget_nodes \tnode_elems %s"%(node_elems))
 128         return Slabv1Node.get_node_objs(node_elems)
 129
 130     @staticmethod
 131     def get_nodes_with_slivers(xml, sliver_filter={}):
 132
 133         xpath = '//node[count(sliver)>0] | \
 134                                 //default:node[count(default:sliver) > 0]'
 135         node_elems = xml.xpath(xpath)
 136         logger.debug("SLABV1NODE \tget_nodes_with_slivers  \
 137                                 node_elems %s"%(node_elems))
 138         return Slabv1Node.get_node_objs(node_elems)
 139
 140     @staticmethod
 141     def get_node_objs(node_elems):
 142         nodes = []
 143         for node_elem in node_elems:
 144             node = Node(node_elem.attrib, node_elem)
 145             nodes.append(node)
 146             if 'component_id' in node_elem.attrib:
 147                 node['authority_id'] = \
 148                     Xrn(node_elem.attrib['component_id']).get_authority_urn()
 149
 150             # get hardware types
 151             hardware_type_elems = node_elem.xpath('./default:hardware_type | \
 152                                                             ./hardware_type')
 153             node['hardware_types'] = [hw_type.get_instance(HardwareType) \
 154                                             for hw_type in hardware_type_elems]
 155
 156             # get location
 157             location_elems = node_elem.xpath('./default:location | ./location')
 158             locations = [location_elem.get_instance(Location) \
 159                                             for location_elem in location_elems]
 160             if len(locations) > 0:
 161                 node['location'] = locations[0]
 162
 163             # get interfaces
 164             iface_elems = node_elem.xpath('./default:interface | ./interface')
 165             node['interfaces'] = [iface_elem.get_instance(Interface) \
 166                                             for iface_elem in iface_elems]
 167
 168             # get services
 169             #node['services'] = PGv2Services.get_services(node_elem)
 170
 171             # get slivers
 172             node['slivers'] = Slabv1Sliver.get_slivers(node_elem)
 173             available_elems = node_elem.xpath('./default:available | \
 174                                                                 ./available')
 175             if len(available_elems) > 0 and 'name' in available_elems[0].attrib:
 176                 if available_elems[0].attrib.get('now', '').lower() == 'true':
 177                     node['boot_state'] = 'boot'
 178                 else:
 179                     node['boot_state'] = 'disabled'
 180         return nodes
 181
 182
 183     @staticmethod
 184     def add_slivers(xml, slivers):
 185         logger.debug("SLABv1NODE \tadd_slivers ")
 186         component_ids = []
 187         for sliver in slivers:
 188             filter_sliver = {}
 189             if isinstance(sliver, str):
 190                 filter_sliver['component_id'] = '*%s*' % sliver
 191                 sliver = {}
 192             elif 'component_id' in sliver and sliver['component_id']:
 193                 filter_sliver['component_id'] = '*%s*' % sliver['component_id']
 194             if not filter_sliver:
 195                 continue
 196             nodes = Slabv1Node.get_nodes(xml, filter_sliver)
 197             if not nodes:
 198                 continue
 199             node = nodes[0]
 200             Slabv1Sliver.add_slivers(node, sliver)
 201
 202     @staticmethod
 203     def remove_slivers(xml, hostnames):
 204         for hostname in hostnames:
 205             nodes = Slabv1Node.get_nodes(xml, \
 206                                     {'component_id': '*%s*' % hostname})
 207             for node in nodes:
 208                 slivers = Slabv1Sliver.get_slivers(node.element)
 209                 for sliver in slivers:
 210                     node.element.remove(sliver.element)
 211
 212
 213