#!/usr/bin/python
-from __future__ import with_statement
from lxml import etree
-from xmlbuilder import XMLBuilder
from StringIO import StringIO
+from sfa.rspecs.rspec import RSpec
from sfa.util.xrn import *
+from sfa.util.plxrn import hostname_to_urn
+from sfa.util.config import Config
+from sfa.rspecs.rspec_version import RSpecVersion
-class PGRSpec:
- xml_tree = None
- namespaces = {'rspecv2':'http://www.protogeni.net/resources/rspec/0.2'}
-
-
- def __init__(self, rspec="", namespaces={}):
- try:
- self.xml_tree = etree.parse(rspec)
- if namespaces:
- self.namespaces = namespaces
-
- except IOError:
- # 'rspec' file doesnt exist. 'rspec' is proably an xml string
- try:
- self.xml_tree = etree.parse(StringIO(rspec))
- except:
- raise IOError("Must specify a xml file or xml string. Received: " + rspec )
+_ad_version = {'type': 'ProtoGENI',
+ 'version': '2',
+ 'schema': 'http://www.protogeni.net/resources/rspec/2/ad.xsd',
+ 'namespace': 'http://www.protogeni.net/resources/rspec/2',
+ 'extensions': [
+ 'http://www.protogeni.net/resources/rspec/ext/gre-tunnel/1',
+ 'http://www.protogeni.net/resources/rspec/ext/other-ext/3'
+ ]
+}
+_request_version = {'type': 'ProtoGENI',
+ 'version': '2',
+ 'schema': 'http://www.protogeni.net/resources/rspec/2/request.xsd',
+ 'namespace': 'http://www.protogeni.net/resources/rspec/2',
+ 'extensions': [
+ 'http://www.protogeni.net/resources/rspec/ext/gre-tunnel/1',
+ 'http://www.protogeni.net/resources/rspec/ext/other-ext/3'
+ ]
+}
+pg_rspec_ad_version = RSpecVersion(_ad_version)
+pg_rspec_request_version = RSpecVersion(_request_version)
+
+class PGRSpec(RSpec):
+ xml = None
+ header = '<?xml version="1.0"?>\n'
+ 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/%(rspec_type)s.xsd"></rspec>"""
+
+ def __init__(self, rspec="", namespaces={}, type=None):
+ if not type:
+ type = 'advertisement'
+ self.type = type
+
+ if type == 'advertisement':
+ self.version = pg_rspec_ad_version
+ rspec_type = 'ad'
+ else:
+ self.version = pg_rspec_request_version
+ rspec_type = type
+
+ self.template = self.template % {'rspec_type': rspec_type}
+
+ if not namespaces:
+ self.namespaces = {'rspecv2': self.version['namespace']}
+ else:
+ self.namespaces = namespaces
+
+ if rspec:
+ self.parse_rspec(rspec, self.namespaces)
+ else:
+ self.create()
+
+ def create(self):
+ RSpec.create(self)
+ if self.type:
+ self.xml.set('type', self.type)
+
def get_network(self):
network = None
- root = self.xml_tree.getroot()
- nodes = root.xpath("//rspecv2:node[@component_manager_uuid][1]", self.namespaces)
+ nodes = self.xml.xpath('//rspecv2:node[@component_manager_uuid][1]', namespaces=self.namespaces)
if nodes:
network = nodes[0].get('component_manager_uuid')
return network
- def get_nodes(self, nodes_with_slivers=False):
- root = self.xml_tree.getroot()
- nodes = root.xpath("//rspecv2:node", self.namespaces)
+ def get_networks(self):
+ networks = self.xml.xpath('//rspecv2:node[@component_manager_uuid]/@component_manager_uuid', namespaces=self.namespaces)
+ return set(networks)
+
+ def get_node_elements(self):
+ nodes = self.xml.xpath('//rspecv2:node | //node', namespaces=self.namespaces)
return nodes
+ def get_nodes(self, network=None):
+ xpath = '//rspecv2:node[@component_name]/@component_name | //node[@component_name]/@component_name'
+ return self.xml.xpath(xpath, namespaces=self.namespaces)
- def to_sfa_node(self, site, node, i=0):
- cm_urn = node.get('component_manager_uuid')
- c_name = node.get('component_name')
- c_urn = node.get('component_uuid')
- c_hrn, _ = urn_to_hrn(c_urn)
- node_tag = etree.SubElement(site, "node")
- node_tag.set("component_manager_uuid", cm_urn)
- node_tag.set("component_name", c_name)
- node_tag.set("component_uuid", c_urn)
- hostname_tag = etree.SubElement(node_tag, "hostname").text = c_hrn
- urn_tag = etree.SubElement(node_tag, "urn").text = c_hrn
- for child in node.getchildren():
- node_tag.append(transform(child).getroot())
-
-
- def to_sfa_network(self, xml):
- network_urn = self.get_network()
- network, _ = urn_to_hrn(network_urn)
- nodes = self.get_nodes()
- network_tag = etree.SubElement(xml, "network")
- network_tag.set("name", network)
- network_tag.set("id", network)
- site_tag = etree.SubElement(network_tag, "Site")
- site_tag.set("id", network)
- name = etree.SubElement(site_tag, "name").text = network
- i = 0
+ def get_nodes_with_slivers(self, network=None):
+ if network:
+ return self.xml.xpath('//rspecv2:node[@component_manager_id="%s"][sliver_type]/@component_name' % network, namespaces=self.namespaces)
+ else:
+ return self.xml.xpath('//rspecv2:node[rspecv2:sliver_type]/@component_name', namespaces=self.namespaces)
+
+ def get_nodes_without_slivers(self, network=None):
+ pass
+
+ def add_nodes(self, nodes, check_for_dupes=False):
+ if not isinstance(nodes, list):
+ nodes = [nodes]
for node in nodes:
- self.to_sfa_node(site_tag, node, i)
+ 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')
+ location_tag = etree.SubElement(node_tag, 'location', country="us")
+ if 'site' in node:
+ if 'longitude' in node['site']:
+ location_tag.set('longitude', str(node['site']['longitude']))
+ if 'latitude' in node['site']:
+ location_tag.set('latitude', str(node['site']['latitude']))
+ #if 'interfaces' in node:
+
+
+ def add_slivers(self, slivers, sliver_urn=None, no_dupes=False):
+ slivers = self._process_slivers(slivers)
+ nodes_with_slivers = self.get_nodes_with_slivers()
+ for sliver in slivers:
+ hostname = sliver['hostname']
+ if hostname in nodes_with_slivers:
+ continue
+ nodes = self.xml.xpath('//rspecv2:node[@component_name="%s"] | //node[@component_name="%s"]' % (hostname, hostname), namespaces=self.namespaces)
+ if nodes:
+ node = nodes[0]
+ node.set('client_id', hostname)
+ if sliver_urn:
+ node.set('sliver_id', sliver_urn)
+ etree.SubElement(node, 'sliver_type', name='plab-vnode')
+
+ 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
+ """
- def to_sfa_rspec(self):
- header = '<?xml version="1.0"?>\n'
- xml = etree.Element("RSpec", type="SFA")
- self.to_sfa_network(xml)
- return header + etree.tostring(xml, pretty_print=True)
+ # 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 nodes without slivers
+ nodes = self.get_node_elements()
+ for node in nodes:
+ delete = True
+ hostname = node.get('component_name')
+ parent = node.getparent()
+ children = node.getchildren()
+ for child in children:
+ if child.tag.endswith('sliver_type'):
+ delete = False
+ if delete:
+ parent.remove(node)
+
+ # remove 'available' element from remaining node elements
+ self.remove_element('//rspecv2:available | //available')
if __name__ == '__main__':
- pass
+ rspec = PGRSpec()
+ rspec.add_nodes([1])
+ print rspec
git://git.onelab.eu / sfa.git / blobdiff