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
  16 class PGv2Node:
  17     elements = {
  18         'node': RSpecElement(RSpecElements.NODE, '//default:node | //node'),
  19         'sliver': RSpecElement(RSpecElements.SLIVER, './default:sliver_type | ./sliver_type'),
  20         'interface': RSpecElement(RSpecElements.INTERFACE, './default:interface | ./interface'),
  21         'location': RSpecElement(RSpecElements.LOCATION, './default:location | ./location'),
  22         'hardware_type': RSpecElement(RSpecElements.HARDWARE_TYPE, './default:hardware_type | ./hardware_type'),
  23         'available': RSpecElement(RSpecElements.AVAILABLE, './default:available | ./available'),
  24     }
  25
  26     @staticmethod
  27     def add_nodes(xml, nodes):
  28         node_elems = []
  29         for node in nodes:
  30             node_elem = etree.SubElement(xml, 'node')
  31             node_elems.append(node_elem)
  32             if node.get('component_manager_id'):
  33                 node_elem.set('component_manager_id', node['component_manager_id'])
  34             if node.get('component_id'):
  35                 node_elem.set('component_id', node['component_id'])
  36                 component_name = Xrn(node['component_id']).get_leaf()
  37                 node_elem.set('component_nama', component_name)
  38             if node.get('client_id'):
  39                 node_elem.set('client_id', node['client_id'])
  40             if node.get('exclusive'):
  41                 node_elem.set('exclusive', node['exclusive'])
  42             hardware_types = node.get('hardware_type', [])
  43             for hardware_type in hardware_types:
  44                 hw_type_elem = etree.SubElement(node_elem, 'hardware_type')
  45                 if hardware_type.get('name'):
  46                     hw_type_elem.set('name', hardware_type['name'])
  47             if node.get('available') and node['available'].get('now'):
  48                 available_elem = etree.SubElement(node_elem, 'available', \
  49                   now=node['available']['now'])
  50             slivers = node.get('slivers', [])
  51             for sliver in slivers:
  52                 sliver_elem = etree.SubElement(node_elem, 'sliver_type')
  53                 if sliver.get('name'):
  54                     sliver_elem.set('name', sliver['name'])
  55                 if sliver.get('client_id'):
  56                     sliver_elem.set('client_id', sliver['client_id'])
  57                 pl_initscripts = node.get('pl_initscripts', {})
  58                 for pl_initscript in pl_initscripts.values():
  59                     etree.SubElement(sliver_elem, '{%s}initscript' % xml.namespaces['planetlab'], \
  60                       name=pl_initscript['name'])
  61             location = node.get('location')
  62             #only add locaiton if long and lat are not null
  63             if location.get('longitute') and location.get('latitude'):
  64                 location_elem = etree.SubElement(node_elem, country=location['country'],
  65                   latitude=location['latitude'], longitude=location['longiutde'])
  66         return node_elems
  67
  68     @staticmethod
  69     def get_nodes(xml):
  70         nodes = []
  71         node_elems = xml.xpath(PGv2Node.elements['node'].path)
  72         for node_elem in node_elems:
  73             node = Node(node_elem.attrib, node_elem)
  74             nodes.append(node)
  75             if 'component_id' in node_elem.attrib:
  76                 node['authority_id'] = Xrn(node_elem.attrib['component_id']).get_authority_urn()
  77
  78             # set hardware type
  79             node['hardware_types'] = []
  80             hardware_type_elems = node_elem.xpath(PGv2Node.elements['hardware_type'].path, xml.namespaces)
  81             for hardware_type_elem in hardware_type_elems:
  82                 node['hardware_types'].append(HardwareType(hardware_type_elem.attrib, hardware_type_elem))
  83
  84             # set location
  85             location_elems = node_elem.xpath(PGv2Node.elements['location'].path, xml.namespaces)
  86             if len(location_elems) > 0:
  87                 node['location'] = Location(location_elems[0].attrib, location_elems[0])
  88
  89             # set interfaces
  90             interface_elems = node_elem.xpath(PGv2Node.elements['interface'].path, xml.namespaces)
  91             node['interfaces'] = []
  92             for interface_elem in interface_elems:
  93                 node['interfaces'].append(Interface(interface_elem.attrib, interface_elem))
  94
  95             # set available
  96             available = node_elem.xpath(PGv2Node.elements['available'].path, xml.namespaces)
  97             if len(available) > 0:
  98                 node['available'] = available[0].attrib
  99
 100             # set the slivers
 101             sliver_elems = node_elem.xpath(PGv2Node.elements['sliver'].path, xml.namespaces)
 102             node['slivers'] = []
 103             for sliver_elem in sliver_elems:
 104                 node['slivers'].append(Sliver(sliver_elem.attrib, sliver_elem))
 105
 106         return nodes
 107
 108
 109     @staticmethod
 110     def add_slivers(xml, slivers):
 111         pass
 112
 113     @staticmethod
 114     def get_nodes_with_slivers(xml):
 115         nodes = PGv2Node.get_nodes(xml)
 116         nodes_with_slivers = [node for node in nodes if node['slivers']]
 117         return nodes_with_slivers
 118
 119 if __name__ == '__main__':
 120     from sfa.rspecs.rspec import RSpec
 121     import pdb
 122     r = RSpec('/tmp/emulab.rspec')
 123     r2 = RSpec(version = 'ProtoGENI')
 124     nodes = PGv2Node.get_nodes(r.xml)
 125     PGv2Node.add_nodes(r2.xml.root, nodes)
 126     #pdb.set_trace()
 127
 128