sfa/rspecs/elements/versions/sfav1Sliver.py

   1 from sfa.util.xrn import Xrn
   2 from sfa.util.xml import XmlElement
   3 from sfa.rspecs.elements.element import Element
   4 from sfa.rspecs.elements.sliver import Sliver
   5 from sfa.rspecs.elements.versions.sfav1PLTag import SFAv1PLTag
   6
   7 class SFAv1Sliver:
   8
   9     @staticmethod
  10     def add_slivers(xml, slivers):
  11         if not slivers:
  12             return
  13         if not isinstance(slivers, list):
  14             slivers = [slivers]
  15         for sliver in slivers:
  16             sliver_elem = xml.add_instance('sliver', sliver, ['name'])
  17             tags = sliver.get('tags', [])
  18             if tags:
  19                 for tag in tags:
  20                     SFAv1Sliver.add_sliver_attribute(sliver_elem, tag['tagname'], tag['value'])
  21             if sliver.get('sliver_id'):
  22                 sliver_id_leaf = Xrn(sliver.get('sliver_id')).get_leaf()
  23                 sliver_id_parts = sliver_id_leaf.split(':')
  24                 name = sliver_id_parts[0]
  25                 sliver_elem.set('name', name)
  26
  27     @staticmethod
  28     def add_sliver_attribute(xml, name, value):
  29         elem = xml.add_element(name)
  30         elem.set_text(value)
  31
  32     @staticmethod
  33     def get_sliver_attributes(xml):
  34         attribs = []
  35         for elem in xml.iterchildren():
  36             if elem.tag not in Sliver.fields:
  37                 xml_element = XmlElement(elem, xml.namespaces)
  38                 instance = Element(xml_element)
  39                 instance['name'] = elem.tag
  40                 instance['value'] = elem.text
  41                 attribs.append(instance)
  42         return attribs
  43
  44     @staticmethod
  45     def get_slivers(xml, filter={}):
  46         xpath = './default:sliver | ./sliver'
  47         sliver_elems = xml.xpath(xpath)
  48         slivers = []
  49         for sliver_elem in sliver_elems:
  50             sliver = Sliver(sliver_elem.attrib,sliver_elem)
  51             if 'component_id' in xml.attrib:
  52                 sliver['component_id'] = xml.attrib['component_id']
  53             sliver['tags'] = SFAv1Sliver.get_sliver_attributes(sliver_elem)
  54             slivers.append(sliver)
  55         return slivers
  56