+
+
+from copy import deepcopy
from lxml import etree
+
+from sfa.util.sfalogging import logger
from sfa.util.xrn import hrn_to_urn, urn_to_hrn
-from sfa.rspecs.rspec_version import BaseVersion
-from sfa.rspecs.rspec_elements import RSpecElement, RSpecElements
+from sfa.rspecs.version import RSpecVersion
+from sfa.rspecs.elements.element import Element
+from sfa.rspecs.elements.versions.pgv2Link import PGv2Link
+from sfa.rspecs.elements.versions.sfav1Node import SFAv1Node
+from sfa.rspecs.elements.versions.sfav1Sliver import SFAv1Sliver
+from sfa.rspecs.elements.versions.sfav1Lease import SFAv1Lease
-class SFAv1(BaseVersion):
+
+class SFAv1(RSpecVersion):
enabled = True
type = 'SFA'
content_type = '*'
version = '1'
- schema = None
- namespace = None
+ schema = ''
+ namespace = ''
extensions = {}
namespaces = None
- elements = [
- RSpecElement(RSpecElements.NETWORK, 'network', '//network'),
- RSpecElement(RSpecElements.NODE, 'node', '//node'),
- RSpecElement(RSpecElements.SLIVER, 'sliver', '//node/sliver'),
- ]
template = '<RSpec type="%s"></RSpec>' % type
- def get_network_elements(self):
- return self.xml.xpath('//network')
-
+ # Network
def get_networks(self):
- return self.xml.xpath('//network[@name]/@name')
-
- def get_node_element(self, hostname, network=None):
- if network:
- names = self.xml.xpath('//network[@name="%s"]//node/hostname' % network)
- else:
- names = self.xml.xpath('//node/hostname')
- for name in names:
- if str(name.text).strip() == hostname:
- return name.getparent()
- return None
-
- def get_node_elements(self, network=None):
- if network:
- return self.xml.xpath('//network[@name="%s"]//node' % network)
- else:
- return self.xml.xpath('//node')
-
- def get_nodes(self, network=None):
- if network == None:
- nodes = self.xml.xpath('//node/hostname/text()')
- else:
- nodes = self.xml.xpath('//network[@name="%s"]//node/hostname/text()' % network)
-
- nodes = [node.strip() for node in nodes]
- return nodes
-
- def get_nodes_with_slivers(self, network = None):
- if network:
- nodes = self.xml.xpath('//network[@name="%s"]//node[sliver]/hostname/text()' % network)
- else:
- nodes = self.xml.xpath('//node[sliver]/hostname/text()')
-
- nodes = [node.strip() for node in nodes]
- return nodes
-
- def get_nodes_without_slivers(self, network=None):
- xpath_nodes_without_slivers = '//node[not(sliver)]/hostname/text()'
- xpath_nodes_without_slivers_in_network = '//network[@name="%s"]//node[not(sliver)]/hostname/text()'
- if network:
- return self.xml.xpath('//network[@name="%s"]//node[not(sliver)]/hostname/text()' % network)
- else:
- return self.xml.xpath('//node[not(sliver)]/hostname/text()')
-
- def attributes_list(self, elem):
- # convert a list of attribute tags into list of tuples
- # (tagnme, text_value)
- opts = []
- if elem is not None:
- for e in elem:
- opts.append((e.tag, str(e.text).strip()))
- return opts
-
- def get_default_sliver_attributes(self, network=None):
- if network:
- defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
- else:
- defaults = self.xml.xpath("//sliver_defaults")
- if isinstance(defaults, list) and defaults:
- defaults = defaults[0]
- return self.attributes_list(defaults)
-
- def get_sliver_attributes(self, hostname, network=None):
- attributes = []
- node = self.get_node_element(hostname, network)
- #sliver = node.find("sliver")
- slivers = node.xpath('./sliver')
- if isinstance(slivers, list) and slivers:
- attributes = self.attributes_list(slivers[0])
- return attributes
-
- def get_slice_attributes(self, network=None):
- slice_attributes = []
- nodes_with_slivers = self.get_nodes_with_slivers(network)
- for default_attribute in self.get_default_sliver_attributes(network):
- attribute = {'name': str(default_attribute[0]), 'value': str(default_attribute[1]), 'node_id': None}
- slice_attributes.append(attribute)
- for node in nodes_with_slivers:
- sliver_attributes = self.get_sliver_attributes(node, network)
- for sliver_attribute in sliver_attributes:
- attribute = {'name': str(sliver_attribute[0]), 'value': str(sliver_attribute[1]), 'node_id': node}
- slice_attributes.append(attribute)
- return slice_attributes
-
- def get_site_nodes(self, siteid, network=None):
- if network:
- nodes = self.xml.xpath('//network[@name="%s"]/site[@id="%s"]/node/hostname/text()' % \
- (network, siteid))
- else:
- nodes = self.xml.xpath('//site[@id="%s"]/node/hostname/text()' % siteid)
- return nodes
-
- def get_links(self, network=None):
- if network:
- links = self.xml.xpath('//network[@name="%s"]/link' % network)
- else:
- links = self.xml.xpath('//link')
- linklist = []
- for link in links:
- (end1, end2) = link.get("endpoints").split()
- name = link.find("description")
- linklist.append((name.text,
- self.get_site_nodes(end1, network),
- self.get_site_nodes(end2, network)))
- return linklist
-
- def get_link(self, fromnode, tonode, network=None):
- fromsite = fromnode.getparent()
- tosite = tonode.getparent()
- fromid = fromsite.get("id")
- toid = tosite.get("id")
- if network:
- query = "//network[@name='%s']" % network + "/link[@endpoints = '%s %s']"
- else:
- query = "//link[@endpoints = '%s %s']"
-
- results = self.rspec.xpath(query % (fromid, toid))
- if not results:
- results = self.rspec.xpath(query % (toid, fromid))
- return results
-
- def query_links(self, fromnode, tonode, network=None):
- return get_link(fromnode, tonode, network)
-
- def get_vlinks(self, network=None):
- vlinklist = []
- if network:
- vlinks = self.xml.xpath("//network[@name='%s']//vlink" % network)
- else:
- vlinks = self.xml.xpath("//vlink")
- for vlink in vlinks:
- endpoints = vlink.get("endpoints")
- (end1, end2) = endpoints.split()
- if network:
- node1 = self.xml.xpath('//network[@name="%s"]//node[@id="%s"]/hostname/text()' % \
- (network, end1))[0]
- node2 = self.xml.xpath('//network[@name="%s"]//node[@id="%s"]/hostname/text()' % \
- (network, end2))[0]
- else:
- node1 = self.xml.xpath('//node[@id="%s"]/hostname/text()' % end1)[0]
- node2 = self.xml.xpath('//node[@id="%s"]/hostname/text()' % end2)[0]
- desc = "%s <--> %s" % (node1, node2)
- kbps = vlink.find("kbps")
- vlinklist.append((endpoints, desc, kbps.text))
- return vlinklist
-
- def get_vlink(self, endponts, network=None):
- if network:
- query = "//network[@name='%s']//vlink[@endpoints = '%s']" % (network, endpoints)
- else:
- query = "//vlink[@endpoints = '%s']" % (network, endpoints)
- results = self.rspec.xpath(query)
- return results
-
- def query_vlinks(self, endpoints, network=None):
- return get_vlink(endpoints,network)
-
-
- ##################
- # Builder
- ##################
+ network_elems = self.xml.xpath('//network')
+ networks = [network_elem.get_instance(fields=['name', 'slice']) for
+ network_elem in network_elems]
+ return networks
def add_network(self, network):
network_tags = self.xml.xpath('//network[@name="%s"]' % network)
if not network_tags:
- network_tag = etree.SubElement(self.xml, 'network', name=network)
+ network_tag = self.xml.add_element('network', name=network)
else:
network_tag = network_tags[0]
return network_tag
- def add_nodes(self, nodes, network = None, no_dupes=False):
- if not isinstance(nodes, list):
- nodes = [nodes]
- for node in nodes:
- if no_dupes and \
- self.get_node_element(node['hostname']):
- # node already exists
- continue
+ # Nodes
- network_tag = self.xml
- if 'network' in node:
- network = node['network']
- network_tag = self.add_network(network)
-
- node_tag = etree.SubElement(network_tag, 'node')
- if 'network' in node:
- node_tag.set('component_manager_id', hrn_to_urn(network, 'authority+sa'))
- if 'urn' in node:
- node_tag.set('component_id', node['urn'])
- if 'site_urn' in node:
- node_tag.set('site_id', node['site_urn'])
- if 'node_id' in node:
- node_tag.set('node_id', 'n'+str(node['node_id']))
- if 'boot_state' in node:
- node_tag.set('boot_state', node['boot_state'])
- if 'hostname' in node:
- hostname_tag = etree.SubElement(node_tag, 'hostname').text = node['hostname']
- if 'interfaces' in node:
- for interface in node['interfaces']:
- if 'bwlimit' in interface and interface['bwlimit']:
- bwlimit = etree.SubElement(node_tag, 'bw_limit', units='kbps').text = str(interface['bwlimit']/1000)
- if 'tags' in node:
- for tag in node['tags']:
- # expose this hard wired list of tags, plus the ones that are marked 'sfa' in their category
- if tag['tagname'] in ['fcdistro', 'arch'] or 'sfa' in tag['category'].split('/'):
- tag_element = etree.SubElement(node_tag, tag['tagname']).text=tag['value']
-
- if 'site' in node:
- longitude = str(node['site']['longitude'])
- latitude = str(node['site']['latitude'])
- location = etree.SubElement(node_tag, 'location', country='unknown', \
- longitude=longitude, latitude=latitude)
+ def get_nodes(self, filter=None):
+ return SFAv1Node.get_nodes(self.xml, filter)
+
+ def get_nodes_with_slivers(self):
+ return SFAv1Node.get_nodes_with_slivers(self.xml)
+
+ def add_nodes(self, nodes, network=None, no_dupes=False, rspec_content_type=None):
+ SFAv1Node.add_nodes(self.xml, nodes, rspec_content_type)
def merge_node(self, source_node_tag, network, no_dupes=False):
if no_dupes and self.get_node_element(node['hostname']):
network_tag = self.add_network(network)
network_tag.append(deepcopy(source_node_tag))
- def add_interfaces(self, interfaces):
- pass
-
- def add_links(self, links):
- pass
+ # Slivers
- def add_slivers(self, slivers, network=None, sliver_urn=None, no_dupes=False):
+ def add_slivers(self, hostnames, attributes=None, sliver_urn=None, append=False):
+ if attributes is None:
+ attributes = []
# add slice name to network tag
network_tags = self.xml.xpath('//network')
if network_tags:
network_tag = network_tags[0]
network_tag.set('slice', urn_to_hrn(sliver_urn)[0])
-
- nodes_with_slivers = self.get_nodes_with_slivers(network)
- for sliver in slivers:
- if isinstance(sliver, basestring):
- sliver = {'hostname': sliver}
- if sliver['hostname'] in nodes_with_slivers:
+
+ # add slivers
+ sliver = {'name': sliver_urn,
+ 'pl_tags': attributes}
+ for hostname in hostnames:
+ if sliver_urn:
+ sliver['name'] = sliver_urn
+ node_elems = self.get_nodes({'component_id': '*%s*' % hostname})
+ if not node_elems:
continue
- node_elem = self.get_node_element(sliver['hostname'], network)
- sliver_elem = etree.SubElement(node_elem, 'sliver')
- if 'tags' in sliver:
- for tag in sliver['tags']:
- etree.SubElement(sliver_elem, tag['tagname']).text = value=tag['value']
+ node_elem = node_elems[0]
+ SFAv1Sliver.add_slivers(node_elem.element, sliver)
+ # remove all nodes without slivers
+ if not append:
+ for node_elem in self.get_nodes():
+ if not node_elem['slivers']:
+ parent = node_elem.element.getparent()
+ parent.remove(node_elem.element)
def remove_slivers(self, slivers, network=None, no_dupes=False):
- slivers = self._process_slivers(slivers)
- for sliver in slivers:
- node_elem = self.get_node_element(sliver['hostname'], network)
- sliver_elem = node_elem.find('sliver')
- if sliver_elem != None:
- node_elem.remove(sliver_elem)
+ SFAv1Node.remove_slivers(self.xml, slivers)
+
+ def get_slice_attributes(self, network=None):
+ attributes = []
+ nodes_with_slivers = self.get_nodes_with_slivers()
+ for default_attribute in self.get_default_sliver_attributes(network):
+ attribute = default_attribute.copy()
+ attribute['node_id'] = None
+ attributes.append(attribute)
+ for node in nodes_with_slivers:
+ nodename = node['component_name']
+ sliver_attributes = self.get_sliver_attributes(nodename, network)
+ for sliver_attribute in sliver_attributes:
+ sliver_attribute['node_id'] = nodename
+ attributes.append(sliver_attribute)
+ return attributes
+
+ def add_sliver_attribute(self, component_id, name, value, network=None):
+ nodes = self.get_nodes({'component_id': '*%s*' % component_id})
+ if nodes is not None and isinstance(nodes, list) and len(nodes) > 0:
+ node = nodes[0]
+ slivers = SFAv1Sliver.get_slivers(node)
+ if slivers:
+ sliver = slivers[0]
+ SFAv1Sliver.add_sliver_attribute(sliver, name, value)
+ else:
+ # should this be an assert / raise an exception?
+ logger.error("WARNING: failed to find component_id %s" %
+ component_id)
+
+ def get_sliver_attributes(self, component_id, network=None):
+ nodes = self.get_nodes({'component_id': '*%s*' % component_id})
+ attribs = []
+ if nodes is not None and isinstance(nodes, list) and len(nodes) > 0:
+ node = nodes[0]
+ slivers = SFAv1Sliver.get_slivers(node.element)
+ if slivers is not None and isinstance(slivers, list) and len(slivers) > 0:
+ sliver = slivers[0]
+ attribs = SFAv1Sliver.get_sliver_attributes(sliver.element)
+ return attribs
+
+ def remove_sliver_attribute(self, component_id, name, value, network=None):
+ attribs = self.get_sliver_attributes(component_id)
+ for attrib in attribs:
+ if attrib['name'] == name and attrib['value'] == value:
+ # attrib.element.delete()
+ parent = attrib.element.getparent()
+ parent.remove(attrib.element)
def add_default_sliver_attribute(self, name, value, network=None):
if network:
- defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
+ defaults = self.xml.xpath(
+ "//network[@name='%s']/sliver_defaults" % network)
else:
- defaults = self.xml.xpath("//sliver_defaults" % network)
- if not defaults :
- network_tag = self.xml.xpath("//network[@name='%s']" % network)
+ defaults = self.xml.xpath("//sliver_defaults")
+ if not defaults:
+ if network:
+ network_tag = self.xml.xpath("//network[@name='%s']" % network)
+ else:
+ network_tag = self.xml.xpath("//network")
if isinstance(network_tag, list):
network_tag = network_tag[0]
- defaults = self.add_element('sliver_defaults', attrs={}, parent=network_tag)
+ defaults = network_tag.add_element('sliver_defaults')
elif isinstance(defaults, list):
defaults = defaults[0]
- 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)
+ SFAv1Sliver.add_sliver_attribute(defaults, name, value)
- def remove_default_sliver_attribute(self, name, value, network=None):
+ def get_default_sliver_attributes(self, network=None):
if network:
- defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % 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)
+ defaults = self.xml.xpath("//sliver_defaults")
+ if not defaults:
+ return []
+ return SFAv1Sliver.get_sliver_attributes(defaults[0])
- 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 remove_default_sliver_attribute(self, name, value, network=None):
+ attribs = self.get_default_sliver_attributes(network)
+ for attrib in attribs:
+ if attrib['name'] == name and attrib['value'] == value:
+ # attrib.element.delete()
+ parent = attrib.element.getparent()
+ parent.remove(attrib.element)
- 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)
+ # Links
- 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 get_links(self, network=None):
+ return PGv2Link.get_links(self.xml)
+ def get_link_requests(self):
+ return PGv2Link.get_link_requests(self.xml)
- def remove_vlink(self, endpoints, network=None):
- vlinks = self.query_vlinks(endpoints, network)
- for vlink in vlinks:
- vlink.getparent().remove(vlink)
+ def add_links(self, links):
+ networks = self.get_networks()
+ if len(networks) > 0:
+ xml = networks[0].element
+ else:
+ xml = self.xml
+ PGv2Link.add_links(xml, links)
+ def add_link_requests(self, links):
+ PGv2Link.add_link_requests(self.xml, links)
+
+ # utility
def merge(self, in_rspec):
"""
Merge contents for specified rspec with current rspec
"""
+ if not in_rspec:
+ return
+
from sfa.rspecs.rspec import RSpec
- rspec = RSpec(in_rspec)
+ if isinstance(in_rspec, RSpec):
+ rspec = in_rspec
+ else:
+ rspec = RSpec(in_rspec)
if rspec.version.type.lower() == 'protogeni':
from sfa.rspecs.rspec_converter import RSpecConverter
- in_rspec = RSpecConverter.to_sfa_rspec(in_rspec)
+ in_rspec = RSpecConverter.to_sfa_rspec(rspec.toxml())
+ rspec = RSpec(in_rspec)
# just copy over all networks
current_networks = self.get_networks()
- rspec = RSpec(rspec=in_rspec)
- networks = rspec.version.get_network_elements()
+ networks = rspec.version.get_networks()
for network in networks:
current_network = network.get('name')
if current_network and current_network not in current_networks:
- self.xml.append(network)
+ self.xml.append(network.element)
current_networks.append(current_network)
+ # Leases
+
+ def get_leases(self, filter=None):
+ return SFAv1Lease.get_leases(self.xml, filter)
+
+ def add_leases(self, leases, network=None, no_dupes=False):
+ SFAv1Lease.add_leases(self.xml, leases)
+
+ # Spectrum
+
+ def get_channels(self, filter=None):
+ return []
+
+ def add_channels(self, channels, network=None, no_dupes=False):
+ pass
+
if __name__ == '__main__':
from sfa.rspecs.rspec import RSpec
from sfa.rspecs.rspec_elements import *
r = RSpec('/tmp/resources.rspec')
r.load_rspec_elements(SFAv1.elements)
- print r.get(RSpecElements.NODE)
+ print(r.get(RSpecElements.NODE))
git://git.onelab.eu / sfa.git / blobdiff