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, hostnames=None):
   8         if network:
   9             query = '//network[@name="%s"]//node' % network
  10         else:
  11             query = '//node'
  12
  13         if isinstance(hostnames, str):
  14             query = query + '/hostname[text() = "%s"]' % hostnames
  15         elif isinstance(hostnames, list):
  16             query = query + '/hostname[contains( "%s" , text())]' \
  17                     %(" ".join(hostnames))
  18
  19         return self.xpath(query)
  20
  21     def get_nodes(self, network=None, hostnames):
  22         node_elems = self.get_node_elements(network, hostnames)
  23         nodes = [self.get_attributes(node_elem, recursive=True) \
  24                  for node_elem in node_elems]
  25         return nodes
  26
  27     def add_nodes(self, nodes, network=None, no_dupes=False):
  28         if not isinstance(nodes, list):
  29             nodes = [nodes]
  30         for node in nodes:
  31             if no_dupes and \
  32               self.get_node_element(node['hostname']):
  33                 # node already exists
  34                 continue
  35
  36             network_tag = self.root_node
  37             if 'network' in node:
  38                 network = node['network']
  39                 network_tags = self.root_node.xpath('//network[@name="%s"]' % network)
  40                 if not network_tags:
  41                     #network_tag = etree.SubElement(self.root_node, 'network', name=network)
  42                     network_tag = self.add_element('network', {'name': network}, self.root_node)
  43                 else:
  44                     network_tag = network_tags[0]
  45
  46             #node_tag = etree.SubElement(network_tag, 'node')
  47             node_tag = self.add_element('node', parent=network_tag)
  48             if 'network' in node:
  49                 node_tag.set('component_manager_id', network)
  50             if 'urn' in node:
  51                 node_tag.set('component_id', node['urn'])
  52             if 'site_urn' in node:
  53                 node_tag.set('site_id', node['site_urn'])
  54             if 'node_id' in node:
  55                 node_tag.set('node_id', 'n'+str(node['node_id']))
  56             if 'hostname' in node:
  57                 #hostname_tag = etree.SubElement(node_tag, 'hostname').text = node['hostname']
  58                 hostname_tag = self.add_element('hostname', parent=node_tag)
  59                 hostname_tag.text = node['hostname']
  60             if 'interfaces' in node:
  61                 for interface in node['interfaces']:
  62                     if 'bwlimit' in interface and interface['bwlimit']:
  63                         #bwlimit = etree.SubElement(node_tag, 'bw_limit', units='kbps').text = str(interface['bwlimit']/1000)
  64                         bwlimit_tag = self.add_element('bw_limit', {'units': 'kbps'}, parent=node_tag)
  65                         bwlimit_tag.text = str(interface['bwlimit']/1000)
  66             if 'tags' in node:
  67                 for tag in node['tags']:
  68                    # expose this hard wired list of tags, plus the ones that are marked 'sfa' in their category
  69                    if tag['tagname'] in ['fcdistro', 'arch'] or 'sfa' in tag['category'].split('/'):
  70                         #tag_element = etree.SubElement(node_tag, tag['tagname'], value=tag['value'])
  71                         tag_element = self.add_element(tag['tagname'], parent=node_tag)
  72                         tag_element.text = tag['value']
  73
  74             if 'site' in node:
  75                 longitude = str(node['site']['longitude'])
  76                 latitude = str(node['site']['latitude'])
  77                 #location = etree.SubElement(node_tag, 'location', country='unknown', \
  78                 #                            longitude=longitude, latitude=latitude)
  79                 location_attrs = {'country': 'unknown', 'longitude': longitude, 'latitude': latitude}
  80                 self.add_element('location', location_attrs, node_tag)
  81
  82 if __name__ == '__main__':
  83     import sys
  84     from lxml import etree
  85     args = sys.argv[1:]
  86     filename = args[0]
  87
  88     root_node = etree.parse(filename)
  89     network = SFAv1Node(root_node)
  90     print network.get_nodes()