sfa/rspecs/elements/versions/sfav1Node.py

   1
   2 from sfa.util.xml import XpathFilter
   3 from sfa.util.plxrn import PlXrn
   4 from sfa.util.xrn import Xrn
   5 from sfa.rspecs.elements.element import Element
   6 from sfa.rspecs.elements.node import Node
   7 from sfa.rspecs.elements.sliver import Sliver
   8 from sfa.rspecs.elements.network import Network
   9 from sfa.rspecs.elements.location import Location
  10 from sfa.rspecs.elements.hardware_type import HardwareType
  11 from sfa.rspecs.elements.disk_image import DiskImage
  12 from sfa.rspecs.elements.interface import Interface
  13 from sfa.rspecs.elements.bwlimit import BWlimit
  14 from sfa.rspecs.elements.pltag import PLTag
  15 from sfa.rspecs.rspec_elements import RSpecElement, RSpecElements
  16 from sfa.rspecs.elements.versions.sfav1Network import SFAv1Network
  17 from sfa.rspecs.elements.versions.sfav1Sliver import SFAv1Sliver
  18 from sfa.rspecs.elements.versions.sfav1PLTag import SFAv1PLTag
  19 from sfa.rspecs.elements.versions.pgv2Services import PGv2Services
  20
  21 class SFAv1Node:
  22
  23     @staticmethod
  24     def add_nodes(xml, nodes):
  25         network_elems = SFAv1Network.get_networks(xml)
  26         if len(network_elems) > 0:
  27             network_elem = network_elems[0]
  28         elif len(nodes) > 0 and nodes[0].get('component_manager_id'):
  29             network_elem = SFAv1Network.add_network(xml.root, {'name': nodes[0]['component_manager_id']})
  30
  31         node_elems = []
  32         for node in nodes:
  33             node_fields = ['component_manager_id', 'component_id', 'boot_state']
  34             elems = Element.add(network_elem, 'node', node, node_fields)
  35             node_elem = elems[0]
  36             node_elems.append(node_elem)
  37
  38             # determine network hrn
  39             network_hrn = None
  40             if 'component_manager_id' in node and node['component_manager_id']:
  41                 network_hrn = Xrn(node['component_manager_id']).get_hrn()
  42
  43             # set component_name attribute and  hostname element
  44             if 'component_id' in node and node['component_id']:
  45                 xrn = Xrn(node['component_id'])
  46                 node_elem.set('component_name', xrn.get_leaf())
  47                 hostname_tag = node_elem.add_element('hostname')
  48                 hostname_tag.set_text(xrn.get_leaf())
  49
  50             # set site id
  51             if 'authority_id' in node and node['authority_id']:
  52                 node_elem.set('site_id', node['authority_id'])
  53
  54             location_elems = Element.add(node_elem, 'location', node.get('location', []), Location.fields)
  55             interface_elems = Element.add(node_elem, 'interface', node.get('interfaces', []), Interface.fields)
  56
  57             #if 'bw_unallocated' in node and node['bw_unallocated']:
  58             #    bw_unallocated = etree.SubElement(node_elem, 'bw_unallocated', units='kbps').text = str(int(node['bw_unallocated'])/1000)
  59
  60             PGv2Services.add_services(node_elem, node.get('services', []))
  61             SFAv1PLTags.add_tags(node_elem, node.get('tags', []))
  62             SFAv1Sliver.add_slivers(node_elem, node.get('slivers', []))
  63
  64     @staticmethod
  65     def add_slivers(xml, slivers):
  66         component_ids = []
  67         for sliver in slivers:
  68             filter = {}
  69             if isinstance(sliver, str):
  70                 filter['component_id'] = '*%s*' % sliver
  71                 sliver = {}
  72             elif 'component_id' in sliver and sliver['component_id']:
  73                 filter['component_id'] = '*%s*' % sliver['component_id']
  74             if not fliter:
  75                 continue
  76             nodes = SFAv1Node.get_nodes(xml, filter)
  77             if not nodes:
  78                 continue
  79             node = nodes[0]
  80             SFAv1Sliver.add_slivers(node, sliver)
  81
  82     @staticmethod
  83     def remove_slivers(xml, hostnames):
  84         for hostname in hostnames:
  85             nodes = SFAv1Node.get_nodes(xml, {'component_id': '*%s*' % hostname})
  86             for node in nodes:
  87                 slivers = SFAv1Slivers.get_slivers(node.element)
  88                 for sliver in slivers:
  89                     node.element.remove(sliver.element)
  90
  91     @staticmethod
  92     def get_nodes(xml, filter={}):
  93         xpath = '//node%s | //default:node%s' % (XpathFilter.xpath(filter), XpathFilter.xpath(filter))
  94         node_elems = xml.xpath(xpath)
  95         return SFAv1Node.get_node_objs(node_elems)
  96
  97     @staticmethod
  98     def get_nodes_with_slivers(xml):
  99         xpath = '//node/sliver | //default:node/default:sliver' % (XpathFilter.xpath(filter), XpathFilter.xpath(filter))
 100         node_elems = xml.xpath(xpath)
 101         return SFAv1Node.get_nodes_objs(node_elems)
 102
 103
 104     @staticmethod
 105     def get_node_objs(node_elems):
 106         nodes = []
 107         for node_elem in node_elems:
 108             node = Node(node_elem.attrib, node_elem)
 109             if 'site_id' in node_elem.attrib:
 110                 node['authority_id'] = node_elem.attrib['site_id']
 111             location_objs = Element.get(node_elem, './default:location | ./location', Location)
 112             if len(location_objs) > 0:
 113                 node['location'] = location_objs[0]
 114             bwlimit_objs = Element.get(node_elem, './default:bw_limit | ./bw_limit', BWlimit)
 115             if len(bwlimit_objs) > 0:
 116                 node['bwlimit'] = bwlimit_objs[0]
 117             node['interfaces'] = Element.get(node_elem, './default:interface | ./interface', Interface)
 118             node['services'] = PGv2Services.get_services(node_elem)
 119             node['slivers'] = SFAv1Sliver.get_slivers(node_elem)
 120             node['tags'] =  SFAv1PLTag.get_pl_tags(node_elem, ignore=Node.fields.keys())
 121             nodes.append(node)
 122         return nodes
 123