1 from sfa.util.xrn import Xrn
2 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.nitosv1PLTag import NITOSv1PLTag
8 from sfa.planetlab.plxrn import PlXrn
13 def add_slivers(xml, slivers):
16 if not isinstance(slivers, list):
18 for sliver in slivers:
19 sliver_elem = xml.add_instance('sliver', sliver, ['name'])
20 tags = sliver.get('tags', [])
23 NITOSv1Sliver.add_sliver_attribute(sliver_elem, tag['tagname'], tag['value'])
24 if sliver.get('sliver_id'):
25 name = PlXrn(xrn=sliver.get('sliver_id')).pl_slicename()
26 sliver_elem.set('name', name)
29 def add_sliver_attribute(xml, name, value):
30 elem = xml.add_element(name)
34 def get_sliver_attributes(xml):
36 for elem in xml.iterchildren():
37 if elem.tag not in Sliver.fields:
38 xml_element = XmlElement(elem, xml.namespaces)
39 instance = Element(fields=xml_element, element=elem)
40 instance['name'] = elem.tag
41 instance['value'] = elem.text
42 attribs.append(instance)
46 def get_slivers(xml, filter={}):
47 xpath = './default:sliver | ./sliver'
48 sliver_elems = xml.xpath(xpath)
50 for sliver_elem in sliver_elems:
51 sliver = Sliver(sliver_elem.attrib,sliver_elem)
52 if 'component_id' in xml.attrib:
53 sliver['component_id'] = xml.attrib['component_id']
54 sliver['tags'] = NITOSv1Sliver.get_sliver_attributes(sliver_elem)
55 slivers.append(sliver)