-from sfa.rspecs.rspec_elements import RSpecElement, RSpecElements
-class SFAv1:
+
+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.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(RSpecVersion):
+ enabled = True
type = 'SFA'
content_type = '*'
version = '1'
- schema = None
- namespaces = {}
- elements = [
- RSpecElement(RSpecElements.NETWORK, 'network', '//network'),
- RSpecElement(RSpecElements.NODE, 'node', '//node'),
- RSpecElement(RSpecElements.SLIVER, 'sliver', '//node/sliver'),
- ]
+ schema = ''
+ namespace = ''
+ extensions = {}
+ namespaces = None
template = '<RSpec type="%s"></RSpec>' % type
+ # Network
+ def get_networks(self):
+ 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 = self.xml.add_element('network', name=network)
+ else:
+ network_tag = network_tags[0]
+ return network_tag
+
+ # Nodes
+
+ 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']):
+ # node already exists
+ return
+
+ network_tag = self.add_network(network)
+ network_tag.append(deepcopy(source_node_tag))
+
+ # Slivers
+
+ 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])
+
+ # 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 = 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):
+ 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)
+ else:
+ 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 = network_tag.add_element('sliver_defaults')
+ elif isinstance(defaults, list):
+ defaults = defaults[0]
+ SFAv1Sliver.add_sliver_attribute(defaults, name, value)
+
+ 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 not defaults:
+ return []
+ return SFAv1Sliver.get_sliver_attributes(defaults[0])
+
+ 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)
+
+ # Links
+
+ 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):
+ 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
+ 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(rspec.toxml())
+ rspec = RSpec(in_rspec)
+
+ # just copy over all networks
+ current_networks = self.get_networks()
+ 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.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