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
8 from sfa.rspecs.baseversion import BaseVersion
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
13 class SFAv1(BaseVersion):
22 template = '<RSpec type="%s"></RSpec>' % type
25 def get_networks(self):
26 return Element.get_elements(self.xml, '//network', Element)
28 def add_network(self, network):
29 network_tags = self.xml.xpath('//network[@name="%s"]' % network)
31 network_tag = etree.SubElement(self.xml.root, 'network', name=network)
33 network_tag = network_tags[0]
39 def get_nodes(self, filter=None):
40 return SFAv1Node.get_nodes(self.xml, filter)
42 def get_nodes_with_slivers(self):
43 return SFAv1Node.get_nodes_with_slivers(self.xml)
45 def add_nodes(self, nodes, network = None, no_dupes=False):
46 SFAv1Node.add_nodes(self.xml, nodes)
48 def merge_node(self, source_node_tag, network, no_dupes=False):
49 if no_dupes and self.get_node_element(node['hostname']):
53 network_tag = self.add_network(network)
54 network_tag.append(deepcopy(source_node_tag))
58 def attributes_list(self, elem):
59 # convert a list of attribute tags into list of tuples
60 # (tagname, text_value)
64 opts.append((e.tag, str(e.text).strip()))
67 def get_default_sliver_attributes(self, network=None):
69 defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
71 defaults = self.xml.xpath("//sliver_defaults")
72 if not defaults: return []
73 return self.attributes_list_thierry(defaults)
75 def get_sliver_attributes(self, hostname, network=None):
76 node = self.get_node_element(hostname, network)
77 #sliver = node.find("sliver")
78 slivers = node.xpath('./sliver')
79 if not slivers: return []
80 return self.attributes_list_thierry(slivers[0])
82 def get_slice_attributes(self, network=None):
84 nodes_with_slivers = self.get_nodes_with_slivers(network)
85 for default_attribute in self.get_default_sliver_attributes(network):
86 attribute = {'name': str(default_attribute[0]),
87 'value': str(default_attribute[1]),
89 slice_attributes.append(attribute)
90 for node in nodes_with_slivers:
91 nodename=node.get('component_name')
92 sliver_attributes = self.get_sliver_attributes(nodename, network)
93 for sliver_attribute in sliver_attributes:
94 attribute = {'name': str(sliver_attribute[0]), 'value': str(sliver_attribute[1]), 'node_id': node}
95 slice_attributes.append(attribute)
96 return slice_attributes
98 def add_slivers(self, hostnames, attributes=[], sliver_urn=None, append=False):
99 # add slice name to network tag
100 network_tags = self.xml.xpath('//network')
102 network_tag = network_tags[0]
103 network_tag.set('slice', urn_to_hrn(sliver_urn)[0])
106 sliver = {'name':sliver_urn,
107 'pl_tags': attributes}
108 for hostname in hostnames:
110 sliver['name'] = sliver_urn
111 node_elems = self.get_nodes({'component_id': '*%s*' % hostname})
114 node_elem = node_elems[0]
115 SFAv1Sliver.add_slivers(node_elem, sliver)
117 # remove all nodes without slivers
119 for node_elem in self.get_nodes():
120 if not node['slivers']:
121 parent = node.getparent()
122 parent.remove(node_elem)
125 def remove_slivers(self, slivers, network=None, no_dupes=False):
126 SFAv1Node.remove_slivers(self.xml, slivers)
128 def add_default_sliver_attribute(self, name, value, network=None):
130 defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
132 defaults = self.xml.xpath("//sliver_defaults" % network)
134 network_tag = self.xml.xpath("//network[@name='%s']" % network)
135 if isinstance(network_tag, list):
136 network_tag = network_tag[0]
137 defaults = self.xml.add_element('sliver_defaults', attrs={}, parent=network_tag)
138 elif isinstance(defaults, list):
139 defaults = defaults[0]
140 self.xml.add_attribute(defaults, name, value)
142 def add_sliver_attribute(self, hostname, name, value, network=None):
143 node = self.get_node_element(hostname, network)
144 sliver = node.find("sliver")
145 self.xml.add_attribute(sliver, name, value)
147 def remove_default_sliver_attribute(self, name, value, network=None):
149 defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
151 defaults = self.xml.xpath("//sliver_defaults" % network)
152 self.xml.remove_attribute(defaults, name, value)
154 def remove_sliver_attribute(self, hostname, name, value, network=None):
155 node = self.get_node_element(hostname, network)
156 sliver = node.find("sliver")
157 self.xml.remove_attribute(sliver, name, value)
161 def get_links(self, network=None):
162 return PGv2Link.get_links(self.xml)
164 def get_link_requests(self):
165 return PGv2Link.get_link_requests(self.xml)
167 def add_links(self, links):
168 networks = self.get_networks()
169 if len(networks) > 0:
173 PGv2Link.add_links(xml, links)
175 def add_link_requests(self, links):
176 PGv2Link.add_link_requests(self.xml, links)
180 def merge(self, in_rspec):
182 Merge contents for specified rspec with current rspec
185 from sfa.rspecs.rspec import RSpec
186 if isinstance(in_rspec, RSpec):
189 rspec = RSpec(in_rspec)
190 if rspec.version.type.lower() == 'protogeni':
191 from sfa.rspecs.rspec_converter import RSpecConverter
192 in_rspec = RSpecConverter.to_sfa_rspec(rspec.toxml())
193 rspec = RSpec(in_rspec)
195 # just copy over all networks
196 current_networks = self.get_networks()
197 networks = rspec.version.get_networks()
198 for network in networks:
199 current_network = network.get('name')
200 if current_network and current_network not in current_networks:
201 self.xml.append(network.element)
202 current_networks.append(current_network)
204 if __name__ == '__main__':
205 from sfa.rspecs.rspec import RSpec
206 from sfa.rspecs.rspec_elements import *
207 r = RSpec('/tmp/resources.rspec')
208 r.load_rspec_elements(SFAv1.elements)
209 print r.get(RSpecElements.NODE)