sfa/rspecs/elements/versions/sfav1Node.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.sfav1Network import SFAv1Network
  16
  17 class SFAv1Node:
  18
  19     elements = {
  20         'node': RSpecElement(RSpecElements.NODE, '//default:node | //node'),
  21         'sliver': RSpecElement(RSpecElements.SLIVER, './default:sliver | ./sliver'),
  22         'interface': RSpecElement(RSpecElements.INTERFACE, './default:interface | ./interface'),
  23         'location': RSpecElement(RSpecElements.LOCATION, './default:location | ./location'),
  24         'bw_limit': RSpecElement(RSpecElements.BWLIMIT, './default:bw_limit | ./bw_limit'),
  25     }
  26
  27     @staticmethod
  28     def add_nodes(xml, nodes):
  29         network_elems = SFAv1Network.get_networks(xml)
  30         if len(network_elems) > 0:
  31             network_elem = network_elems[0]
  32         else:
  33             network_elem = xml.root
  34
  35         for node in nodes:
  36             node_elem = etree.SubElement(network_elem, 'node')
  37             network = None
  38             if 'component_manager_id' in node and node['component_manager_id']:
  39                 node_elem.set('component_manager_id', node['component_manager_id'])
  40                 network = Xrn(node['component_manager_id']).get_hrn()
  41             if 'component_id' in node and node['component_id']:
  42                 node_elem.set('component_id', node['component_id'])
  43                 xrn = Xrn(node['component_id'])
  44                 node_elem.set('component_name', xrn.get_leaf())
  45                 hostname_tag = etree.SubElement(node_elem, 'hostname').text = xrn.get_leaf()
  46             if 'authority_id' in node and node['authority_id']:
  47                 node_elem.set('site_id', node['authority_id'])
  48             if 'boot_state' in node and node['boot_state']:
  49                 node_elem.set('boot_state', node['boot_state'])
  50             if 'location' in node and node['location']:
  51                 location_elem = etree.SubElement(node_elem, 'location')
  52                 for field in Location.fields:
  53                     if field in node['location'] and node['location'][field]:
  54                         location_elem.set(field, node['location'][field])
  55
  56             if 'interfaces' in node and node['interfaces']:
  57                 i = 0
  58                 for interface in node['interfaces']:
  59                     if 'bwlimit' in interface and interface['bwlimit']:
  60                         bwlimit = etree.SubElement(node_elem, 'bw_limit', units='kbps').text = str(interface['bwlimit']/1000)
  61                     comp_id = PlXrn(auth=network, interface='node%s:eth%s' % (interface['node_id'], i)).get_urn()
  62                     ipaddr = interface['ipv4']
  63                     interface_elem = etree.SubElement(node_elem, 'interface', component_id=comp_id, ipv4=ipaddr)
  64                     i+=1
  65             if 'bw_unallocated' in node and node['bw_unallocated']:
  66                 bw_unallocated = etree.SubElement(node_elem, 'bw_unallocated', units='kbps').text = str(int(node['bw_unallocated'])/1000)
  67
  68             if 'tags' in node:
  69                 for tag in node['tags']:
  70                    # expose this hard wired list of tags, plus the ones that are marked 'sfa' in their category
  71                    if tag['tagname'] in ['fcdistro', 'arch'] or 'sfa' in tag['category'].split('/'):
  72                         tag_element = etree.SubElement(node_elem, tag['tagname']).text=tag['value']
  73
  74             if 'slivers' in node:
  75                 for sliver in node['slivers']:
  76                     sliver_elem = etree.SubElement(node_elem, 'sliver')
  77                     if 'name' in sliver and sliver['name']:
  78                         sliver_elem.set('name', sliver['name'])
  79
  80     @staticmethod
  81     def add_slivers(xml, slivers):
  82         pass
  83
  84     @staticmethod
  85     def get_nodes(xml):
  86         nodes = []
  87         node_elems = xml.xpath(SFAv1Node.elements['node'].path)
  88         for node_elem in node_elems:
  89             node = Node(node_elem.attrib, node_elem)
  90             if 'site_id' in node_elem.attrib:
  91                 node['authority_id'] = node_elem.attrib['site_id']
  92
  93             # set the location
  94             location_elems = node_elem.xpath(SFAv1Node.elements['location'].path, xml.namespaces)
  95             if len(location_elems) > 0:
  96                 node['location'] = Location(location_elems[0].attrib, location_elems[0])
  97
  98             # set the bwlimit
  99             bwlimit_elems = node_elem.xpath(SFAv1Node.elements['bw_limit'].path, xml.namespaces)
 100             if len(bwlimit_elems) > 0:
 101                 bwlimit = BWlimit(bwlimit_elems[0].attrib, bwlimit_elems[0])
 102                 node['bwlimit'] = bwlimit
 103
 104             # set the interfaces
 105             interface_elems = node_elem.xpath(SFAv1Node.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 the slivers
 111             sliver_elems = node_elem.xpath(SFAv1Node.elements['sliver'].path, xml.namespaces)
 112             node['slivers'] = []
 113             for sliver_elem in sliver_elems:
 114                 node['slivers'].append(Sliver(sliver_elem.attrib, sliver_elem))
 115
 116             # set tags
 117             node['tags'] = []
 118             for child in node_elem.iterchildren():
 119                 if child.tag not in SFAv1Node.elements:
 120                     tag = PLTag({'name': child.tag, 'value': child.text}, child)
 121                     node['tags'].append(tag)
 122             nodes.append(node)
 123         return nodes
 124
 125     @staticmethod
 126     def get_nodes_with_slivers(xml):
 127         nodes = SFAv1Node.get_nodes(xml)
 128         nodes_with_slivers = [node for node in nodes if node['slivers']]
 129         return nodes_with_slivers
 130
 131