xml = None
header = '<?xml version="1.0"?>\n'
namespaces = {}
-
- ########
+ type = 'sfa'
+ ###################
# Parser
- ########
+ ###################
def get_network_elements(self):
return self.xml.xpath('//network', self.namespaces)
def query_vlinks(self, endpoints, network=None):
return get_vlink(endpoints,network)
- #########
+ ##################
# Builder
- ########
+ ##################
+
+ def add_network(self, network):
+ network_tag = etree.SubElement(self.xml, 'network', id=network)
- def add_nodes(self, nodes, check_for_dupes=False):
+ def add_nodes(self, nodes, network = None, no_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, self.namespaces):
+ if no_dupes and \
+ self.get_node_element(node['hostname']):
# node already exists
continue
-
- node_tag = etree.SubElement(self.xml, 'node')
- node_type_tag = etree.SubElement(node_tag, 'node_type', type_name='pcvm', type_slots='100')
- available_tag = etree.SubElement(node_tag, 'available').text = 'true'
- exclusive_tag = etree.SubElement(node_tag, 'exclusive').text = 'false'
- location_tag = etree.SubElement(node_tag, 'location')
- interface_tag = etree.SubElement(node_tag, 'interface')
+
+ network_tag = self.xml
+ if 'network' in node:
+ network = node['network']
+ network_tags = self.xml.xpath('//network[@name="%s"]' % network, self.namespaces)
+ if not network_tags:
+ network_tag = etree.SubElement(self.xml, 'network', name=network)
+ else:
+ network_tag = network_tags[0]
+
+ node_tag = etree.SubElement(network_tag, 'node')
+ if 'network' in node:
+ node_tag.set('component_manager_uuid', network)
+ if 'urn' in node:
+ node_tag.set('compinent_uuid', node['urn'])
+ if 'site_urn' in node:
+ node_tag.set('site_uuid', node['site_urn'])
+ if 'node_id' in node:
+ node_tag.set('node_id', 'n'+str(node['node_id']))
+ if 'hostname' in node:
+ hostname_tag = etree.SubElement(node_tag, 'hostname').text = node['hostname']
+ if 'bw_unallocated' in node:
+ pass
+ if 'bw_limit' in node:
+ pass
- def add_slivers(self, slivers, check_for_dupes=False):
- pass
+ def add_slivers(self, hostnames, network=None, no_dupes=False):
+ if not isinstance(hostnames, list):
+ hostnames = [hostnames]
- def add_links(self, links, check_for_dupes=False):
- pass
+ nodes_with_slivers = self.get_nodes_with_slivers(network)
+ for hostname in hostnames:
+ if hostname in nodes_with_slivers:
+ continue
+ node = self.get_node_element(hostname, network)
+ etree.SubElement(node, 'sliver')
+
+ def remove_slivers(self, hostnames, network=None, no_dupes=False):
+ if not isinstance(hostnames, list):
+ hostnames = [hostnames]
+ for hostname in hostnames:
+ node = self.get_node_element(hostname, network)
+ sliver = node.find('sliver')
+ if sliver:
+ node.remove(sliver)
+
+ def add_default_sliver_attribute(self, name, value, network=None):
+ if network:
+ defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
+ else:
+ defaults = self.xml.xpath("//sliver_defaults" % network)
+ if defaults is None:
+ defaults = etree.Element("sliver_defaults")
+ network = self.xml.xpath("//network[@name='%s']" % network)
+ network.insert(0, defaults)
+ self.add_attribute(defaults, name, value)
+
+ def add_sliver_attribute(self, hostname, name, value, network=None):
+ node = self.get_node_element(hostname, network)
+ sliver = node.find("sliver")
+ self.add_attribute(sliver, name, value)
+
+ def remove_default_sliver_attribute(self, name, value, network=None):
+ if network:
+ defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
+ else:
+ defaults = self.xml.xpath("//sliver_defaults" % network)
+ self.remove_attribute(defaults, name, value)
+ def remove_sliver_attribute(self, hostname, name, value, network=None):
+ node = self.get_node_element(hostname, network)
+ sliver = node.find("sliver")
+ self.remove_attribute(sliver, name, value)
+
+ def add_vlink(self, fromhost, tohost, kbps, network=None):
+ fromnode = self.get_node_element(fromhost, network)
+ tonode = self.get_node_element(tohost, network)
+ links = self.get_link(fromnode, tonode, network)
+
+ for link in links:
+ vlink = etree.SubElement(link, "vlink")
+ fromid = fromnode.get("id")
+ toid = tonode.get("id")
+ vlink.set("endpoints", "%s %s" % (fromid, toid))
+ self.add_attribute(vlink, "kbps", kbps)
+
+
+ def remove_vlink(self, endpoints, network=None):
+ vlinks = self.query_vlinks(endpoints, network)
+ for vlink in vlinks:
+ vlink.getparent().remove(vlink)
+
+
+ def merge(self, in_rspec):
+ """
+ Merge contents for specified rspec with current rspec
+ """
+
+ # just copy over all networks
+ current_networks = self.get_networks()
+ rspec = SfaRSpec(rspec=in_rspec)
+ networks = rspec.get_network_elements()
+ for network in networks:
+ current_network = network.get('name')
+ if not current_network in current_networks:
+ self.xml.append(network)
+ current_networks.append(current_network)
+
+
if __name__ == '__main__':
rspec = SfaRSpec()
- rspec.add_nodes([1])
+ nodes = [
+ {'network': 'plc',
+ 'hostname': 'node1.planet-lab.org',
+ 'site_urn': 'urn:publicid:IDN+plc+authority+cm',
+ 'node_id': 1,
+ },
+ {'network': 'plc',
+ 'hostname': 'node2.planet-lab.org',
+ 'site_urn': 'urn:publicid:IDN+plc+authority+cm',
+ 'node_id': 1,
+ },
+ {'network': 'ple',
+ 'hostname': 'node1.planet-lab.eu',
+ 'site_urn': 'urn:publicid:IDN+plc+authority+cm',
+ 'node_id': 1,
+ },
+ ]
+ rspec.add_nodes(nodes)
print rspec