sfa/rspecs/elements/SFAv1Node.py

   1 #!/usr/bin/python
   2
   3 from sfa.rspecs.elements.node import Node
   4
   5 class SFAv1Node(Node):
   6
   7     def get_node_elements(self, network=None):
   8         if network:
   9             nodes = self.root_node.xpath('//network[@name="%s"]//node' % network)
  10         else:
  11             nodes = self.root_node.xpath('//node')
  12         return nodes
  13
  14     def get_nodes(self, network=None):
  15         node_elems = self.get_node_elements(network)
  16         nodes = [self.get_attributes(node_elem, recursive=True) \
  17                  for node_elem in node_elems]
  18         return nodes
  19
  20     def add_nodes(self, nodes, network=None, no_dupes=False):
  21         if not isinstance(nodes, list):
  22             nodes = [nodes]
  23         for node in nodes:
  24             if no_dupes and \
  25               self.get_node_element(node['hostname']):
  26                 # node already exists
  27                 continue
  28
  29             network_tag = self.root_node
  30             if 'network' in node:
  31                 network = node['network']
  32                 network_tags = self.root_node.xpath('//network[@name="%s"]' % network)
  33                 if not network_tags:
  34                     #network_tag = etree.SubElement(self.root_node, 'network', name=network)
  35                     network_tag = self.add_element('network', {'name': network}, self.root_node)
  36                 else:
  37                     network_tag = network_tags[0]
  38
  39             #node_tag = etree.SubElement(network_tag, 'node')
  40             node_tag = self.add_element('node', parent=network_tag)
  41             if 'network' in node:
  42                 node_tag.set('component_manager_id', network)
  43             if 'urn' in node:
  44                 node_tag.set('component_id', node['urn'])
  45             if 'site_urn' in node:
  46                 node_tag.set('site_id', node['site_urn'])
  47             if 'node_id' in node:
  48                 node_tag.set('node_id', 'n'+str(node['node_id']))
  49             if 'hostname' in node:
  50                 #hostname_tag = etree.SubElement(node_tag, 'hostname').text = node['hostname']
  51                 hostname_tag = self.add_element('hostname', parent=node_tag)
  52                 hostname_tag.text = node['hostname']
  53             if 'interfaces' in node:
  54                 for interface in node['interfaces']:
  55                     if 'bwlimit' in interface and interface['bwlimit']:
  56                         #bwlimit = etree.SubElement(node_tag, 'bw_limit', units='kbps').text = str(interface['bwlimit']/1000)
  57                         bwlimit_tag = self.add_element('bw_limit', {'units': 'kbps'}, parent=node_tag)
  58                         bwlimit_tag.text = str(interface['bwlimit']/1000)
  59             if 'tags' in node:
  60                 for tag in node['tags']:
  61                    # expose this hard wired list of tags, plus the ones that are marked 'sfa' in their category
  62                    if tag['tagname'] in ['fcdistro', 'arch'] or 'sfa' in tag['category'].split('/'):
  63                         #tag_element = etree.SubElement(node_tag, tag['tagname'], value=tag['value'])
  64                         tag_element = self.add_element(tag['tagname'], parent=node_tag)
  65                         tag_element.text = tag['value']
  66
  67             if 'site' in node:
  68                 longitude = str(node['site']['longitude'])
  69                 latitude = str(node['site']['latitude'])
  70                 #location = etree.SubElement(node_tag, 'location', country='unknown', \
  71                 #                            longitude=longitude, latitude=latitude)
  72                 location_attrs = {'country': 'unknown', 'longitude': longitude, 'latitude': latitude}
  73                 self.add_element('location', location_attrs, node_tag)
  74
  75 if __name__ == '__main__':
  76     import sys
  77     from lxml import etree
  78     args = sys.argv[1:]
  79     filename = args[0]
  80
  81     root_node = etree.parse(filename)
  82     network = SFAv1Node(root_node)
  83     print network.get_nodes()