sfa/rspecs/elements/versions/pgv2Node.py

   1
   2 from lxml import etree
   3 from sfa.util.plxrn import PlXrn
   4 from sfa.util.xrn import Xrn
   5 from sfa.rspecs.elements.node import Node
   6 from sfa.rspecs.elements.sliver import Sliver
   7 from sfa.rspecs.elements.network import Network
   8 from sfa.rspecs.elements.location import Location
   9 from sfa.rspecs.elements.hardware_type import HardwareType
  10 from sfa.rspecs.elements.disk_image import DiskImage
  11 from sfa.rspecs.elements.interface import Interface
  12 from sfa.rspecs.elements.bwlimit import BWlimit
  13 from sfa.rspecs.elements.pl_tag import PLTag
  14 from sfa.rspecs.rspec_elements import RSpecElement, RSpecElements
  15 from sfa.rspecs.elements.versions.pgv2Service import PGv2Service
  16
  17 class PGv2Node:
  18     elements = {
  19         'node': RSpecElement(RSpecElements.NODE, '//default:node | //node'),
  20         'sliver': RSpecElement(RSpecElements.SLIVER, './default:sliver_type | ./sliver_type'),
  21         'interface': RSpecElement(RSpecElements.INTERFACE, './default:interface | ./interface'),
  22         'location': RSpecElement(RSpecElements.LOCATION, './default:location | ./location'),
  23         'hardware_type': RSpecElement(RSpecElements.HARDWARE_TYPE, './default:hardware_type | ./hardware_type'),
  24         'available': RSpecElement(RSpecElements.AVAILABLE, './default:available | ./available'),
  25     }
  26
  27     @staticmethod
  28     def add_nodes(xml, nodes):
  29         node_elems = []
  30         for node in nodes:
  31             node_elem = etree.SubElement(xml, 'node')
  32             node_elems.append(node_elem)
  33             if node.get('component_manager_id'):
  34                 node_elem.set('component_manager_id', node['component_manager_id'])
  35             if node.get('component_id'):
  36                 node_elem.set('component_id', node['component_id'])
  37                 component_name = Xrn(node['component_id']).get_leaf()
  38                 node_elem.set('component_nama', component_name)
  39             if node.get('client_id'):
  40                 node_elem.set('client_id', node['client_id'])
  41             if node.get('sliver_id'):
  42                 node_elem.set('sliver_id', node['sliver_id'])
  43             if node.get('exclusive'):
  44                 node_elem.set('exclusive', node['exclusive'])
  45             hardware_types = node.get('hardware_type', [])
  46             for hardware_type in hardware_types:
  47                 hw_type_elem = etree.SubElement(node_elem, 'hardware_type')
  48                 if hardware_type.get('name'):
  49                     hw_type_elem.set('name', hardware_type['name'])
  50             if node.get('boot_state', '').lower() == 'boot':
  51                 available_elem = etree.SubElement(node_elem, 'available', now='True')
  52             else:
  53                 available_elem = etree.SubElement(node_elem, 'available', now='False')
  54
  55             if node.get('services'):
  56                 PGv2Services.add_services(node_elem, node.get('services'))
  57
  58             slivers = node.get('slivers', [])
  59             pl_initscripts = node.get('pl_initscripts', {})
  60             for sliver in slivers:
  61                 sliver_elem = etree.SubElement(node_elem, 'sliver_type')
  62                 if sliver.get('name'):
  63                     sliver_elem.set('name', sliver['name'])
  64                 if sliver.get('client_id'):
  65                     sliver_elem.set('client_id', sliver['client_id'])
  66                 for pl_initscript in pl_initscripts.values():
  67                     etree.SubElement(sliver_elem, '{%s}initscript' % xml.namespaces['planetlab'], \
  68                       name=pl_initscript['name'])
  69             location = node.get('location')
  70             #only add locaiton if long and lat are not null
  71             if location.get('longitute') and location.get('latitude'):
  72                 location_elem = etree.SubElement(node_elem, country=location['country'],
  73                   latitude=location['latitude'], longitude=location['longiutde'])
  74         return node_elems
  75
  76     @staticmethod
  77     def get_nodes(xml):
  78         nodes = []
  79         node_elems = xml.xpath(PGv2Node.elements['node'].path)
  80         for node_elem in node_elems:
  81             node = Node(node_elem.attrib, node_elem)
  82             nodes.append(node)
  83             if 'component_id' in node_elem.attrib:
  84                 node['authority_id'] = Xrn(node_elem.attrib['component_id']).get_authority_urn()
  85
  86             # set hardware type
  87             node['hardware_types'] = []
  88             hardware_type_elems = node_elem.xpath(PGv2Node.elements['hardware_type'].path, xml.namespaces)
  89             for hardware_type_elem in hardware_type_elems:
  90                 node['hardware_types'].append(HardwareType(hardware_type_elem.attrib, hardware_type_elem))
  91
  92             # set location
  93             location_elems = node_elem.xpath(PGv2Node.elements['location'].path, xml.namespaces)
  94             if len(location_elems) > 0:
  95                 node['location'] = Location(location_elems[0].attrib, location_elems[0])
  96
  97             # set services
  98             services_elems = node_elem.xpath(PGv2Service.elements['services'].path, xml.namespaces)
  99             node['services'] = []
 100             for services_elem in services_elems:
 101                 # services element has no useful info, but the child elements do
 102                 for child in services_elem.iterchildren():
 103
 104             # set interfaces
 105             interface_elems = node_elem.xpath(PGv2Node.elements['interface'].path, xml.namespaces)
 106             node['interfaces'] = []
 107             for interface_elem in interface_elems:
 108                 node['interfaces'].append(Interface(interface_elem.attrib, interface_elem))
 109
 110             # set available
 111             available = node_elem.xpath(PGv2Node.elements['available'].path, xml.namespaces)
 112             if len(available) > 0:
 113                 if available[0].attrib.get('now', '').lower() == 'true':
 114                     node['boot_state'] = 'boot'
 115                 else:
 116                     node['boot_state'] = 'disabled'
 117
 118             # set the slivers
 119             sliver_elems = node_elem.xpath(PGv2Node.elements['sliver'].path, xml.namespaces)
 120             node['slivers'] = []
 121             for sliver_elem in sliver_elems:
 122                 node['slivers'].append(Sliver(sliver_elem.attrib, sliver_elem))
 123
 124         return nodes
 125
 126
 127     @staticmethod
 128     def add_slivers(xml, slivers):
 129         pass
 130
 131     @staticmethod
 132     def get_nodes_with_slivers(xml):
 133         nodes = PGv2Node.get_nodes(xml)
 134         nodes_with_slivers = [node for node in nodes if node['slivers']]
 135         return nodes_with_slivers
 136
 137 if __name__ == '__main__':
 138     from sfa.rspecs.rspec import RSpec
 139     import pdb
 140     r = RSpec('/tmp/emulab.rspec')
 141     r2 = RSpec(version = 'ProtoGENI')
 142     nodes = PGv2Node.get_nodes(r.xml)
 143     PGv2Node.add_nodes(r2.xml.root, nodes)
 144     #pdb.set_trace()
 145
 146