from lxml import etree
from copy import deepcopy
from StringIO import StringIO
-from sfa.util.xrn import *
+from sfa.util.xrn import urn_to_sliver_id
from sfa.util.plxrn import hostname_to_urn, xrn_to_hostname
from sfa.rspecs.rspec_version import BaseVersion
from sfa.rspecs.rspec_elements import RSpecElement, RSpecElements
-
+from sfa.rspecs.elements.versions.pgv2Link import PGv2Link
+
class PGv2(BaseVersion):
- elements = [
- RSpecElement(RSpecElements.NETWORK, 'network', '//default:node[@component_manager_id][1]'),
- RSpecElement(RSpecElements.NODE, 'node', '//default:node | //node'),
- RSpecElement(RSpecElements.SLIVER, 'sliver', '//default:node/default:sliver_type | //node/sliver_type'),
- ]
+ type = 'ProtoGENI'
+ content_type = 'ad'
+ version = '2'
+ schema = 'http://www.protogeni.net/resources/rspec/2/ad.xsd'
+ namespace = 'http://www.protogeni.net/resources/rspec/2'
+ extensions = {
+ 'flack': "http://www.protogeni.net/resources/rspec/ext/flack/1",
+ 'planetlab': "http://www.planet-lab.org/resources/sfa/ext/planetlab/1",
+ }
+ namespaces = dict(extensions.items() + [('default', namespace)])
+ elements = []
def get_network(self):
network = None
- nodes = self.xml.xpath('//rspecv2:node[@component_manager_id][1]', namespaces=self.namespaces)
+ nodes = self.xml.xpath('//default:node[@component_manager_id][1]', namespaces=self.namespaces)
if nodes:
network = nodes[0].get('component_manager_id')
return network
def get_networks(self):
- networks = self.xml.xpath('//rspecv2:node[@component_manager_id]/@component_manager_id', namespaces=self.namespaces)
+ networks = self.xml.xpath('//default:node[@component_manager_id]/@component_manager_id', namespaces=self.namespaces)
return set(networks)
def get_node_element(self, hostname, network=None):
- nodes = self.xml.xpath('//rspecv2:node[@component_id[contains(., "%s")]] | node[@component_id[contains(., "%s")]]' % (hostname, hostname), namespaces=self.namespaces)
+ nodes = self.xml.xpath('//default:node[@component_id[contains(., "%s")]] | node[@component_id[contains(., "%s")]]' % (hostname, hostname), namespaces=self.namespaces)
if isinstance(nodes,list) and nodes:
return nodes[0]
else:
return None
def get_node_elements(self, network=None):
- nodes = self.xml.xpath('//rspecv2:node | //node', namespaces=self.namespaces)
+ nodes = self.xml.xpath('//default:node | //node', namespaces=self.namespaces)
return nodes
def get_nodes(self, network=None):
- xpath = '//rspecv2:node[@component_name]/@component_id | //node[@component_name]/@component_id'
+ xpath = '//default:node[@component_name]/@component_id | //node[@component_name]/@component_id'
nodes = self.xml.xpath(xpath, namespaces=self.namespaces)
nodes = [xrn_to_hostname(node) for node in nodes]
return nodes
def get_nodes_with_slivers(self, network=None):
if network:
- nodes = self.xml.xpath('//rspecv2:node[@component_manager_id="%s"][sliver_type]/@component_id' % network, namespaces=self.namespaces)
+ nodes = self.xml.xpath('//default:node[@component_manager_id="%s"][sliver_type]/@component_id' % network, namespaces=self.namespaces)
else:
- nodes = self.xml.xpath('//rspecv2:node[rspecv2:sliver_type]/@component_id', namespaces=self.namespaces)
+ nodes = self.xml.xpath('//default:node[default:sliver_type]/@component_id', namespaces=self.namespaces)
nodes = [xrn_to_hostname(node) for node in nodes]
return nodes
def get_sliver_attributes(self, hostname, network=None):
node = self.get_node_element(hostname, network)
- sliver = node.xpath('./rspecv2:sliver_type', namespaces=self.namespaces)
+ sliver = node.xpath('./default:sliver_type', namespaces=self.namespaces)
if sliver is not None and isinstance(sliver, list):
sliver = sliver[0]
return self.attributes_list(sliver)
slice_attributes = []
nodes_with_slivers = self.get_nodes_with_slivers(network)
# TODO: default sliver attributes in the PG rspec?
- default_ns_prefix = self.namespaces['rspecv2']
+ default_ns_prefix = self.namespaces['default']
for node in nodes_with_slivers:
sliver_attributes = self.get_sliver_attributes(node, network)
for sliver_attribute in sliver_attributes:
return slice_attributes
+ def get_links(self, network=None):
+ return PGv2Link.get_links(self.xml)
+
+ def get_link_requests(self):
+ return PGv2Link.get_link_requests(self.xml)
+
+ def add_links(self, links):
+ PGv2Link.add_links(self.xml.root, links)
+
+ def add_link_requests(self, link_tuples, append=False):
+ PGv2Link.add_link_requests(self.xml.root, link_tuples, append)
+
def attributes_list(self, elem):
opts = []
if elem is not None:
for node in nodes:
urn = ""
if check_for_dupes and \
- self.xml.xpath('//rspecv2:node[@component_uuid="%s"]' % urn, namespaces=self.namespaces):
+ self.xml.xpath('//default:node[@component_uuid="%s"]' % urn, namespaces=self.namespaces):
# node already exists
continue
- node_tag = etree.SubElement(self.xml, 'node', exclusive='false')
+ node_tag = etree.SubElement(self.xml.root, 'node', exclusive='false')
if 'network_urn' in node:
node_tag.set('component_manager_id', node['network_urn'])
if 'urn' in node:
node_type_tag = etree.SubElement(node_tag, 'hardware_type', name='plab-pc')
node_type_tag = etree.SubElement(node_tag, 'hardware_type', name='pc')
available_tag = etree.SubElement(node_tag, 'available', now='true')
- sliver_type_tag = etree.SubElement(node_tag, 'sliver_type', name='plab-vnode')
+ sliver_type_tag = etree.SubElement(node_tag, 'sliver_type', name='plab-vserver')
pl_initscripts = node.get('pl_initscripts', {})
for pl_initscript in pl_initscripts.values():
def merge_node(self, source_node_tag):
# this is untested
- self.xml.append(deepcopy(source_node_tag))
+ self.xml.root.append(deepcopy(source_node_tag))
- def add_slivers(self, slivers, sliver_urn=None, no_dupes=False):
+ def add_slivers(self, slivers, sliver_urn=None, no_dupes=False, append=False):
# all nodes hould already be present in the rspec. Remove all
# nodes that done have slivers
- slivers = self._process_slivers(slivers)
slivers_dict = {}
for sliver in slivers:
- slivers_dict[sliver['hostname']] = sliver
+ if isinstance(sliver, basestring):
+ slivers_dict[sliver] = {'hostname': sliver}
+ elif isinstance(sliver, dict):
+ slivers_dict[sliver['hostname']] = sliver
nodes = self.get_node_elements()
for node in nodes:
urn = node.get('component_id')
hostname = xrn_to_hostname(urn)
- if hostname not in slivers_dict:
+ if hostname not in slivers_dict and not append:
parent = node.getparent()
parent.remove(node)
else:
sliver_info = slivers_dict[hostname]
- node.set('client_id', hostname)
- if sliver_urn:
- slice_id = sliver_info.get('slice_id', -1)
- node_id = sliver_info.get('node_id', -1)
- sliver_id = urn_to_sliver_id(sliver_urn, slice_id, node_id)
- node.set('sliver_id', sliver_id)
-
- # remove existing sliver_type tags,it needs to be recreated
- sliver_elem = node.xpath('./rspecv2:sliver_type | ./sliver_type', namespaces=self.namespaces)
- if sliver_elem and isinstance(sliver_elem, list):
- sliver_elem = sliver_elem[0]
- node.remove(sliver_elem)
-
- sliver_elem = etree.SubElement(node, 'sliver_type', name='plab-vnode')
- for tag in sliver_info['tags']:
- if tag['tagname'] == 'flack_info':
- e = etree.SubElement(sliver_elem, '{%s}info' % self.namespaces['flack'], attrib=eval(tag['value']))
- elif tag['tagname'] == 'initscript':
- e = etree.SubElement(sliver_elem, '{%s}initscript' % self.namespaces['planetlab'], attrib={'name': tag['value']})
-
-
+ sliver_type_elements = node.xpath('./default:sliver_type', namespaces=self.namespaces)
+ available_sliver_types = [element.attrib['name'] for element in sliver_type_elements]
+ valid_sliver_types = ['emulab-openvz', 'raw-pc', 'plab-vserver', 'plab-vnode']
+ requested_sliver_type = None
+ for valid_sliver_type in valid_sliver_types:
+ if valid_sliver_type in available_sliver_types:
+ requested_sliver_type = valid_sliver_type
+ if requested_sliver_type:
+ # remove existing sliver_type tags,it needs to be recreated
+ sliver_elem = node.xpath('./default:sliver_type | ./sliver_type', namespaces=self.namespaces)
+ if sliver_elem and isinstance(sliver_elem, list):
+ sliver_elem = sliver_elem[0]
+ node.remove(sliver_elem)
+ # set the client id
+ node.set('client_id', hostname)
+ if sliver_urn:
+ # set the sliver id
+ slice_id = sliver_info.get('slice_id', -1)
+ node_id = sliver_info.get('node_id', -1)
+ sliver_id = urn_to_sliver_id(sliver_urn, slice_id, node_id)
+ node.set('sliver_id', sliver_id)
+
+ # add the sliver element
+ sliver_elem = etree.SubElement(node, 'sliver_type', name=requested_sliver_type)
+ for tag in sliver_info.get('tags', []):
+ if tag['tagname'] == 'flack_info':
+ e = etree.SubElement(sliver_elem, '{%s}info' % self.namespaces['flack'], attrib=eval(tag['value']))
+ elif tag['tagname'] == 'initscript':
+ e = etree.SubElement(sliver_elem, '{%s}initscript' % self.namespaces['planetlab'], attrib={'name': tag['value']})
+ else:
+ # node isn't usable. just remove it from the request
+ parent = node.getparent()
+ parent.remove(node)
+
+
+
+ def remove_slivers(self, slivers, network=None, no_dupes=False):
+ for sliver in slivers:
+ node_elem = self.get_node_element(sliver['hostname'])
+ sliver_elem = node_elem.xpath('./default:sliver_type', self.namespaces)
+ if sliver_elem != None and sliver_elem != []:
+ node_elem.remove(sliver_elem[0])
def add_default_sliver_attribute(self, name, value, network=None):
pass
def add_interfaces(self, interfaces, no_dupes=False):
pass
- def add_links(self, links, no_dupes=False):
- pass
-
def merge(self, in_rspec):
"""
Merge contents for specified rspec with current rspec
"""
-
+ from sfa.rspecs.rspec import RSpec
# just copy over all the child elements under the root element
+ if isinstance(in_rspec, RSpec):
+ in_rspec = in_rspec.toxml()
tree = etree.parse(StringIO(in_rspec))
root = tree.getroot()
for child in root.getchildren():
- self.xml.append(child)
+ self.xml.root.append(child)
def cleanup(self):
# remove unncecessary elements, attributes
if self.type in ['request', 'manifest']:
# remove 'available' element from remaining node elements
- self.remove_element('//rspecv2:available | //available')
+ self.xml.remove_element('//default:available | //available')
class PGv2Ad(PGv2):
enabled = True
- type = 'ProtoGENI'
content_type = 'ad'
- version = '2'
schema = 'http://www.protogeni.net/resources/rspec/2/ad.xsd'
- namespace = 'http://www.protogeni.net/resources/rspec/2'
- extensions = {
- 'flack': "http://www.protogeni.net/resources/rspec/ext/flack/1",
- 'planetlab': "http://www.planet-lab.org/resources/sfa/ext/planetlab/1",
- }
- template = '<rspec xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.protogeni.net/resources/rspec/2" xsi:schemaLocation="http://www.protogeni.net/resources/rspec/2 http://www.protogeni.net/resources/rspec/2/ad.xsd" xmlns:flack="http://www.protogeni.net/resources/rspec/ext/flack/1" xmlns:planetlab="http://www.planet-lab.org/resources/sfa/ext/planetlab/1" />'
+ template = '<rspec type="advertisement" xmlns="http://www.protogeni.net/resources/rspec/2" xmlns:flack="http://www.protogeni.net/resources/rspec/ext/flack/1" xmlns:planetlab="http://www.planet-lab.org/resources/sfa/ext/planetlab/1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.protogeni.net/resources/rspec/2 http://www.protogeni.net/resources/rspec/2/ad.xsd http://www.planet-lab.org/resources/sfa/ext/planetlab/1 http://www.planet-lab.org/resources/sfa/ext/planetlab/1/planetlab.xsd"/>'
class PGv2Request(PGv2):
enabled = True
- type = 'ProtoGENI'
content_type = 'request'
- version = '2'
schema = 'http://www.protogeni.net/resources/rspec/2/request.xsd'
- namespace = 'http://www.protogeni.net/resources/rspec/2'
- extensions = {
- 'flack': "http://www.protogeni.net/resources/rspec/ext/flack/1",
- 'planetlab': "http://www.planet-lab.org/resources/sfa/ext/planetlab/1",
- }
- template = '<rspec xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.protogeni.net/resources/rspec/2" xsi:schemaLocation="http://www.protogeni.net/resources/rspec/2 http://www.protogeni.net/resources/rspec/2/request.xsd" xmlns:flack="http://www.protogeni.net/resources/rspec/ext/flack/1" xmlns:planetlab="http://www.planet-lab.org/resources/sfa/ext/planetlab/1" />'
+ template = '<rspec type="request" xmlns="http://www.protogeni.net/resources/rspec/2" xmlns:flack="http://www.protogeni.net/resources/rspec/ext/flack/1" xmlns:planetlab="http://www.planet-lab.org/resources/sfa/ext/planetlab/1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.protogeni.net/resources/rspec/2 http://www.protogeni.net/resources/rspec/2/request.xsd http://www.planet-lab.org/resources/sfa/ext/planetlab/1 http://www.planet-lab.org/resources/sfa/ext/planetlab/1/planetlab.xsd"/>'
class PGv2Manifest(PGv2):
enabled = True
- type = 'ProtoGENI'
content_type = 'manifest'
- version = '2'
schema = 'http://www.protogeni.net/resources/rspec/2/manifest.xsd'
- namespace = 'http://www.protogeni.net/resources/rspec/2'
- extensions = {
- 'flack': "http://www.protogeni.net/resources/rspec/ext/flack/1",
- 'planetlab': "http://www.planet-lab.org/resources/sfa/ext/planetlab/1",
- }
- template = '<rspec xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.protogeni.net/resources/rspec/2" xsi:schemaLocation="http://www.protogeni.net/resources/rspec/2 http://www.protogeni.net/resources/rspec/2/manifest.xsd" xmlns:flack="http://www.protogeni.net/resources/rspec/ext/flack/1" xmlns:planetlab="http://www.planet-lab.org/resources/sfa/ext/planetlab/1" />'
+ template = '<rspec type="manifest" xmlns="http://www.protogeni.net/resources/rspec/2" xmlns:flack="http://www.protogeni.net/resources/rspec/ext/flack/1" xmlns:planetlab="http://www.planet-lab.org/resources/sfa/ext/planetlab/1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.protogeni.net/resources/rspec/2 http://www.protogeni.net/resources/rspec/2/manifest.xsd http://www.planet-lab.org/resources/sfa/ext/planetlab/1 http://www.planet-lab.org/resources/sfa/ext/planetlab/1/planetlab.xsd"/>'
+