+from sfa.rspecs.elements.element import Element
+from sfa.rspecs.elements.sliver import Sliver
+from sfa.rspecs.elements.versions.pgv2DiskImage import PGv2DiskImage
+from sfa.rspecs.elements.versions.plosv1FWRule import PLOSv1FWRule
+
+class PGv2SliverType:
+
+ @staticmethod
+ def add_slivers(xml, slivers):
+ if not slivers:
+ return
+ if not isinstance(slivers, list):
+ slivers = [slivers]
+ for sliver in slivers:
+ sliver_elem = xml.add_element('sliver_type')
+ if sliver.get('type'):
+ sliver_elem.set('name', sliver['type'])
+ attrs = ['client_id', 'cpus', 'memory', 'storage']
+ for attr in attrs:
+ if sliver.get(attr):
+ sliver_elem.set(attr, sliver[attr])
+
+ images = sliver.get('disk_image')
+ if images and isinstance(images, list):
+ PGv2DiskImage.add_images(sliver_elem, images)
+ fw_rules = sliver.get('fw_rules')
+ if fw_rules and isinstance(fw_rules, list):
+ PLOSv1FWRule.add_rules(sliver_elem, fw_rules)
+ PGv2SliverType.add_sliver_attributes(sliver_elem, sliver.get('tags', []))
+
+ @staticmethod
+ def add_sliver_attributes(xml, attributes):
+ if attributes:
+ for attribute in attributes:
+ if attribute['name'] == 'initscript':
+ xml.add_element('{%s}initscript' % xml.namespaces['planetlab'], name=attribute['value'])
+ elif attribute['tagname'] == 'flack_info':
+ attrib_elem = xml.add_element('{%s}info' % self.namespaces['flack'])
+ attrib_dict = eval(tag['value'])
+ for (key, value) in attrib_dict.items():
+ attrib_elem.set(key, value)
+ @staticmethod
+ def get_slivers(xml, filter={}):
+ xpath = './default:sliver_type | ./sliver_type'
+ sliver_elems = xml.xpath(xpath)
+ slivers = []
+ for sliver_elem in sliver_elems:
+ sliver = Sliver(sliver_elem.attrib,sliver_elem)
+ if 'component_id' in xml.attrib:
+ sliver['component_id'] = xml.attrib['component_id']
+ if 'name' in sliver_elem.attrib:
+ sliver['type'] = sliver_elem.attrib['name']
+ sliver['disk_image'] = PGv2DiskImage.get_images(sliver_elem)
+ sliver['fw_rules'] = PLOSv1FWRule.get_rules(sliver_elem)
+ slivers.append(sliver)
+ return slivers
+
+ @staticmethod
+ def get_sliver_attributes(xml, filter={}):
+ return []