sfa/rspecs/elements/versions/sfav1Sliver.py

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