+from lxml import etree
+from copy import deepcopy
+from StringIO import StringIO
+from sfa.util.xrn import *
+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
+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'),
+ ]
+
+ def get_network(self):
+ network = None
+ nodes = self.xml.xpath('//rspecv2: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)
+ 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)
+ 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)
+ return nodes
+
+
+ def get_nodes(self, network=None):
+ xpath = '//rspecv2: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)
+ else:
+ nodes = self.xml.xpath('//rspecv2:node[rspecv2:sliver_type]/@component_id', namespaces=self.namespaces)
+ nodes = [xrn_to_hostname(node) for node in nodes]
+ return nodes
+
+ def get_nodes_without_slivers(self, network=None):
+ return []
+
+ def get_sliver_attributes(self, hostname, network=None):
+ node = self.get_node_element(hostname, network)
+ sliver = node.xpath('./rspecv2:sliver_type', namespaces=self.namespaces)
+ if sliver is not None and isinstance(sliver, list):
+ sliver = sliver[0]
+ return self.attributes_list(sliver)
+
+ def get_slice_attributes(self, network=None):
+ 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']
+ for node in nodes_with_slivers:
+ sliver_attributes = self.get_sliver_attributes(node, network)
+ for sliver_attribute in sliver_attributes:
+ name=str(sliver_attribute[0])
+ text =str(sliver_attribute[1])
+ attribs = sliver_attribute[2]
+ # we currently only suppor the <initscript> and <flack> attributes
+ if 'info' in name:
+ attribute = {'name': 'flack_info', 'value': str(attribs), 'node_id': node}
+ slice_attributes.append(attribute)
+ elif 'initscript' in name:
+ if attribs is not None and 'name' in attribs:
+ value = attribs['name']
+ else:
+ value = text
+ attribute = {'name': 'initscript', 'value': value, 'node_id': node}
+ slice_attributes.append(attribute)
+
+ return slice_attributes
+
+ def attributes_list(self, elem):
+ opts = []
+ if elem is not None:
+ for e in elem:
+ opts.append((e.tag, str(e.text).strip(), e.attrib))
+ return opts
+
+ def get_default_sliver_attributes(self, network=None):
+ return []
+
+ def add_default_sliver_attribute(self, name, value, network=None):
+ pass
+
+ def add_nodes(self, nodes, check_for_dupes=False):
+ if not isinstance(nodes, list):
+ nodes = [nodes]
+ for node in nodes:
+ urn = ""
+ if check_for_dupes and \
+ self.xml.xpath('//rspecv2:node[@component_uuid="%s"]' % urn, namespaces=self.namespaces):
+ # node already exists
+ continue
+
+ node_tag = etree.SubElement(self.xml, 'node', exclusive='false')
+ if 'network_urn' in node:
+ node_tag.set('component_manager_id', node['network_urn'])
+ if 'urn' in node:
+ node_tag.set('component_id', node['urn'])
+ if 'hostname' in node:
+ node_tag.set('component_name', node['hostname'])
+ # TODO: should replace plab-pc with pc model
+ 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')
+
+ pl_initscripts = node.get('pl_initscripts', {})
+ for pl_initscript in pl_initscripts.values():
+ etree.SubElement(sliver_type_tag, '{%s}initscript' % self.namespaces['planetlab'], name=pl_initscript['name'])
+
+ # protogeni uses the <sliver_type> tag to identify the types of
+ # vms available at the node.
+ # only add location tag if longitude and latitude are not null
+ if 'site' in node:
+ longitude = node['site'].get('longitude', None)
+ latitude = node['site'].get('latitude', None)
+ if longitude and latitude:
+ location_tag = etree.SubElement(node_tag, 'location', country="us", \
+ longitude=str(longitude), latitude=str(latitude))
+
+ def merge_node(self, source_node_tag):
+ # this is untested
+ self.xml.append(deepcopy(source_node_tag))
+
+ def add_slivers(self, slivers, sliver_urn=None, no_dupes=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
+
+ 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:
+ 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']})
+
+
+
+ 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
+ """
+
+ # just copy over all the child elements under the root element
+ tree = etree.parse(StringIO(in_rspec))
+ root = tree.getroot()
+ for child in root.getchildren():
+ self.xml.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')
+
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 = {
+ 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",
+ '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 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" />'
class PGv2Request(PGv2):
enabled = True
'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" />'
-
-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'),
- ]
-
+
if __name__ == '__main__':
git://git.onelab.eu / sfa.git / commitdiff