1 from copy import deepcopy
4 from sfa.util.sfalogging import logger
5 from sfa.util.xrn import hrn_to_urn, urn_to_hrn
6 from sfa.util.plxrn import PlXrn
7 from sfa.rspecs.baseversion import BaseVersion
8 from sfa.rspecs.elements.element import Element
9 from sfa.rspecs.elements.versions.pgv2Link import PGv2Link
10 from sfa.rspecs.elements.versions.sfav1Node import SFAv1Node
11 from sfa.rspecs.elements.versions.sfav1Sliver import SFAv1Sliver
13 class SFAv1(BaseVersion):
22 template = '<RSpec type="%s"></RSpec>' % type
25 def get_networks(self):
26 network_elems = self.xml.xpath('//network')
27 networks = [network_elem.get_instance(fields=['name', 'slice']) for \
28 network_elem in network_elems]
32 def add_network(self, network):
33 network_tags = self.xml.xpath('//network[@name="%s"]' % network)
35 network_tag = self.xml.add_element('network', name=network)
37 network_tag = network_tags[0]
43 def get_nodes(self, filter=None):
44 return SFAv1Node.get_nodes(self.xml, filter)
46 def get_nodes_with_slivers(self):
47 return SFAv1Node.get_nodes_with_slivers(self.xml)
49 def add_nodes(self, nodes, network = None, no_dupes=False):
50 SFAv1Node.add_nodes(self.xml, nodes)
52 def merge_node(self, source_node_tag, network, no_dupes=False):
53 if no_dupes and self.get_node_element(node['hostname']):
57 network_tag = self.add_network(network)
58 network_tag.append(deepcopy(source_node_tag))
62 def attributes_list(self, elem):
63 # convert a list of attribute tags into list of tuples
64 # (tagname, text_value)
68 opts.append((e.tag, str(e.text).strip()))
71 def get_default_sliver_attributes(self, network=None):
73 defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
75 defaults = self.xml.xpath("//sliver_defaults")
76 if not defaults: return []
77 return self.attributes_list_thierry(defaults)
79 def get_sliver_attributes(self, hostname, network=None):
80 nodes = self.get_nodes({'component_id': '*%s*' %hostname})
82 if nodes is not None and isinstance(nodes, list) and len(nodes) > 0:
84 sliver = node.xpath('./default:sliver', namespaces=self.namespaces)
85 if sliver is not None and isinstance(sliver, list) and len(sliver) > 0:
87 #attribs = self.attributes_list(sliver)
90 def get_slice_attributes(self, network=None):
92 nodes_with_slivers = self.get_nodes_with_slivers()
93 for default_attribute in self.get_default_sliver_attributes(network):
94 attribute = {'name': str(default_attribute[0]),
95 'value': str(default_attribute[1]),
97 slice_attributes.append(attribute)
98 for node in nodes_with_slivers:
99 nodename=node.get('component_name')
100 sliver_attributes = self.get_sliver_attributes(nodename, network)
101 for sliver_attribute in sliver_attributes:
102 attribute = {'name': str(sliver_attribute[0]), 'value': str(sliver_attribute[1]), 'node_id': node}
103 slice_attributes.append(attribute)
104 return slice_attributes
106 def add_slivers(self, hostnames, attributes=[], sliver_urn=None, append=False):
107 # add slice name to network tag
108 network_tags = self.xml.xpath('//network')
110 network_tag = network_tags[0]
111 network_tag.set('slice', urn_to_hrn(sliver_urn)[0])
114 sliver = {'name':sliver_urn,
115 'pl_tags': attributes}
116 for hostname in hostnames:
118 sliver['name'] = sliver_urn
119 node_elems = self.get_nodes({'component_id': '*%s*' % hostname})
122 node_elem = node_elems[0]
123 SFAv1Sliver.add_slivers(node_elem.element, sliver)
125 # remove all nodes without slivers
127 for node_elem in self.get_nodes():
128 if not node_elem['slivers']:
129 parent = node_elem.element.getparent()
130 parent.remove(node_elem.element)
133 def remove_slivers(self, slivers, network=None, no_dupes=False):
134 SFAv1Node.remove_slivers(self.xml, slivers)
136 def add_default_sliver_attribute(self, name, value, network=None):
138 defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
140 defaults = self.xml.xpath("//sliver_defaults" % network)
142 network_tag = self.xml.xpath("//network[@name='%s']" % network)
143 if isinstance(network_tag, list):
144 network_tag = network_tag[0]
145 defaults = self.xml.add_element('sliver_defaults', attrs={}, parent=network_tag)
146 elif isinstance(defaults, list):
147 defaults = defaults[0]
148 self.xml.add_attribute(defaults, name, value)
150 def add_sliver_attribute(self, hostname, name, value, network=None):
151 node = self.get_node_element(hostname, network)
152 sliver = node.find("sliver")
153 self.xml.add_attribute(sliver, name, value)
155 def remove_default_sliver_attribute(self, name, value, network=None):
157 defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
159 defaults = self.xml.xpath("//sliver_defaults" % network)
160 self.xml.remove_attribute(defaults, name, value)
162 def remove_sliver_attribute(self, hostname, name, value, network=None):
163 node = self.get_node_element(hostname, network)
164 sliver = node.find("sliver")
165 self.xml.remove_attribute(sliver, name, value)
169 def get_links(self, network=None):
170 return PGv2Link.get_links(self.xml)
172 def get_link_requests(self):
173 return PGv2Link.get_link_requests(self.xml)
175 def add_links(self, links):
176 networks = self.get_networks()
177 if len(networks) > 0:
181 PGv2Link.add_links(xml, links)
183 def add_link_requests(self, links):
184 PGv2Link.add_link_requests(self.xml, links)
188 def merge(self, in_rspec):
190 Merge contents for specified rspec with current rspec
193 from sfa.rspecs.rspec import RSpec
194 if isinstance(in_rspec, RSpec):
197 rspec = RSpec(in_rspec)
198 if rspec.version.type.lower() == 'protogeni':
199 from sfa.rspecs.rspec_converter import RSpecConverter
200 in_rspec = RSpecConverter.to_sfa_rspec(rspec.toxml())
201 rspec = RSpec(in_rspec)
203 # just copy over all networks
204 current_networks = self.get_networks()
205 networks = rspec.version.get_networks()
206 for network in networks:
207 current_network = network.get('name')
208 if current_network and current_network not in current_networks:
209 self.xml.append(network.element)
210 current_networks.append(current_network)
212 if __name__ == '__main__':
213 from sfa.rspecs.rspec import RSpec
214 from sfa.rspecs.rspec_elements import *
215 r = RSpec('/tmp/resources.rspec')
216 r.load_rspec_elements(SFAv1.elements)
217 print r.get(RSpecElements.NODE)