1 from __future__ import print_function
3 from copy import deepcopy
6 from sfa.util.sfalogging import logger
7 from sfa.util.xrn import hrn_to_urn, urn_to_hrn
8 from sfa.rspecs.version import RSpecVersion
9 from sfa.rspecs.elements.element import Element
10 from sfa.rspecs.elements.versions.pgv2Link import PGv2Link
11 from sfa.rspecs.elements.versions.sfav1Node import SFAv1Node
12 from sfa.rspecs.elements.versions.sfav1Sliver import SFAv1Sliver
13 from sfa.rspecs.elements.versions.sfav1Lease import SFAv1Lease
16 class SFAv1(RSpecVersion):
25 template = '<RSpec type="%s"></RSpec>' % type
28 def get_networks(self):
29 network_elems = self.xml.xpath('//network')
30 networks = [network_elem.get_instance(fields=['name', 'slice']) for
31 network_elem in network_elems]
34 def add_network(self, network):
35 network_tags = self.xml.xpath('//network[@name="%s"]' % network)
37 network_tag = self.xml.add_element('network', name=network)
39 network_tag = network_tags[0]
44 def get_nodes(self, filter=None):
45 return SFAv1Node.get_nodes(self.xml, filter)
47 def get_nodes_with_slivers(self):
48 return SFAv1Node.get_nodes_with_slivers(self.xml)
50 def add_nodes(self, nodes, network=None, no_dupes=False, rspec_content_type=None):
51 SFAv1Node.add_nodes(self.xml, nodes, rspec_content_type)
53 def merge_node(self, source_node_tag, network, no_dupes=False):
54 if no_dupes and self.get_node_element(node['hostname']):
58 network_tag = self.add_network(network)
59 network_tag.append(deepcopy(source_node_tag))
63 def add_slivers(self, hostnames, attributes=None, sliver_urn=None, append=False):
64 if attributes is None:
66 # add slice name to network tag
67 network_tags = self.xml.xpath('//network')
69 network_tag = network_tags[0]
70 network_tag.set('slice', urn_to_hrn(sliver_urn)[0])
73 sliver = {'name': sliver_urn,
74 'pl_tags': attributes}
75 for hostname in hostnames:
77 sliver['name'] = sliver_urn
78 node_elems = self.get_nodes({'component_id': '*%s*' % hostname})
81 node_elem = node_elems[0]
82 SFAv1Sliver.add_slivers(node_elem.element, sliver)
84 # remove all nodes without slivers
86 for node_elem in self.get_nodes():
87 if not node_elem['slivers']:
88 parent = node_elem.element.getparent()
89 parent.remove(node_elem.element)
91 def remove_slivers(self, slivers, network=None, no_dupes=False):
92 SFAv1Node.remove_slivers(self.xml, slivers)
94 def get_slice_attributes(self, network=None):
96 nodes_with_slivers = self.get_nodes_with_slivers()
97 for default_attribute in self.get_default_sliver_attributes(network):
98 attribute = default_attribute.copy()
99 attribute['node_id'] = None
100 attributes.append(attribute)
101 for node in nodes_with_slivers:
102 nodename = node['component_name']
103 sliver_attributes = self.get_sliver_attributes(nodename, network)
104 for sliver_attribute in sliver_attributes:
105 sliver_attribute['node_id'] = nodename
106 attributes.append(sliver_attribute)
109 def add_sliver_attribute(self, component_id, name, value, network=None):
110 nodes = self.get_nodes({'component_id': '*%s*' % component_id})
111 if nodes is not None and isinstance(nodes, list) and len(nodes) > 0:
113 slivers = SFAv1Sliver.get_slivers(node)
116 SFAv1Sliver.add_sliver_attribute(sliver, name, value)
118 # should this be an assert / raise an exception?
119 logger.error("WARNING: failed to find component_id %s" %
122 def get_sliver_attributes(self, component_id, network=None):
123 nodes = self.get_nodes({'component_id': '*%s*' % component_id})
125 if nodes is not None and isinstance(nodes, list) and len(nodes) > 0:
127 slivers = SFAv1Sliver.get_slivers(node.element)
128 if slivers is not None and isinstance(slivers, list) and len(slivers) > 0:
130 attribs = SFAv1Sliver.get_sliver_attributes(sliver.element)
133 def remove_sliver_attribute(self, component_id, name, value, network=None):
134 attribs = self.get_sliver_attributes(component_id)
135 for attrib in attribs:
136 if attrib['name'] == name and attrib['value'] == value:
137 # attrib.element.delete()
138 parent = attrib.element.getparent()
139 parent.remove(attrib.element)
141 def add_default_sliver_attribute(self, name, value, network=None):
143 defaults = self.xml.xpath(
144 "//network[@name='%s']/sliver_defaults" % network)
146 defaults = self.xml.xpath("//sliver_defaults")
149 network_tag = self.xml.xpath("//network[@name='%s']" % network)
151 network_tag = self.xml.xpath("//network")
152 if isinstance(network_tag, list):
153 network_tag = network_tag[0]
154 defaults = network_tag.add_element('sliver_defaults')
155 elif isinstance(defaults, list):
156 defaults = defaults[0]
157 SFAv1Sliver.add_sliver_attribute(defaults, name, value)
159 def get_default_sliver_attributes(self, network=None):
161 defaults = self.xml.xpath(
162 "//network[@name='%s']/sliver_defaults" % network)
164 defaults = self.xml.xpath("//sliver_defaults")
167 return SFAv1Sliver.get_sliver_attributes(defaults[0])
169 def remove_default_sliver_attribute(self, name, value, network=None):
170 attribs = self.get_default_sliver_attributes(network)
171 for attrib in attribs:
172 if attrib['name'] == name and attrib['value'] == value:
173 # attrib.element.delete()
174 parent = attrib.element.getparent()
175 parent.remove(attrib.element)
179 def get_links(self, network=None):
180 return PGv2Link.get_links(self.xml)
182 def get_link_requests(self):
183 return PGv2Link.get_link_requests(self.xml)
185 def add_links(self, links):
186 networks = self.get_networks()
187 if len(networks) > 0:
188 xml = networks[0].element
191 PGv2Link.add_links(xml, links)
193 def add_link_requests(self, links):
194 PGv2Link.add_link_requests(self.xml, links)
198 def merge(self, in_rspec):
200 Merge contents for specified rspec with current rspec
206 from sfa.rspecs.rspec import RSpec
207 if isinstance(in_rspec, RSpec):
210 rspec = RSpec(in_rspec)
211 if rspec.version.type.lower() == 'protogeni':
212 from sfa.rspecs.rspec_converter import RSpecConverter
213 in_rspec = RSpecConverter.to_sfa_rspec(rspec.toxml())
214 rspec = RSpec(in_rspec)
216 # just copy over all networks
217 current_networks = self.get_networks()
218 networks = rspec.version.get_networks()
219 for network in networks:
220 current_network = network.get('name')
221 if current_network and current_network not in current_networks:
222 self.xml.append(network.element)
223 current_networks.append(current_network)
227 def get_leases(self, filter=None):
228 return SFAv1Lease.get_leases(self.xml, filter)
230 def add_leases(self, leases, network=None, no_dupes=False):
231 SFAv1Lease.add_leases(self.xml, leases)
235 def get_channels(self, filter=None):
238 def add_channels(self, channels, network=None, no_dupes=False):
241 if __name__ == '__main__':
242 from sfa.rspecs.rspec import RSpec
243 from sfa.rspecs.rspec_elements import *
244 r = RSpec('/tmp/resources.rspec')
245 r.load_rspec_elements(SFAv1.elements)
246 print(r.get(RSpecElements.NODE))