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):
23 template = '<RSpec type="%s"></RSpec>' % type
26 def get_networks(self):
27 return Element.get_elements(self.xml, '//network', Element)
29 def get_nodes(self, network=None):
30 return SFAv1Node.get_nodes(self.xml)
32 def get_node_element(self,hostname,network):
33 if network is not None:
34 xpath="//network[@name='%s']/node[@component_id[contains(., '%s')]]" % (network,hostname)
35 else: xpath="//node[@component_id[contains(., '%s')]]" % (hostname)
36 nodes=self.xml.xpath(xpath)
37 print 'found %d nodes'%len(nodes)
38 if nodes: return nodes[0]
41 def get_nodes_with_slivers(self, network = None):
42 return SFAv1Node.get_nodes_with_slivers_thierry(self.xml)
44 # xxx thierry - this seems more like it
45 # warning, the same code is duplicated in xml.py and pgv2.py..
46 def attributes_list_thierry (self, elem):
48 for (k,v) in elem.items():
49 opts.append ( (k,v.strip(),) )
52 def attributes_list(self, elem):
53 # convert a list of attribute tags into list of tuples
54 # (tagname, text_value)
58 opts.append((e.tag, str(e.text).strip()))
61 def get_default_sliver_attributes(self, network=None):
63 defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
65 defaults = self.xml.xpath("//sliver_defaults")
66 if not defaults: return []
67 return self.attributes_list_thierry(defaults)
69 def get_sliver_attributes(self, hostname, network=None):
70 node = self.get_node_element(hostname, network)
71 #sliver = node.find("sliver")
72 slivers = node.xpath('./sliver')
73 if not slivers: return []
74 return self.attributes_list_thierry(slivers[0])
76 def get_slice_attributes(self, network=None):
78 nodes_with_slivers = self.get_nodes_with_slivers(network)
79 for default_attribute in self.get_default_sliver_attributes(network):
80 attribute = {'name': str(default_attribute[0]),
81 'value': str(default_attribute[1]),
83 slice_attributes.append(attribute)
84 for node in nodes_with_slivers:
85 nodename=node.get('component_name')
86 sliver_attributes = self.get_sliver_attributes(nodename, network)
87 for sliver_attribute in sliver_attributes:
88 attribute = {'name': str(sliver_attribute[0]), 'value': str(sliver_attribute[1]), 'node_id': node}
89 slice_attributes.append(attribute)
90 return slice_attributes
92 def get_links(self, network=None):
93 return PGv2Link.get_links(self.xml)
95 def get_link_requests(self):
96 return PGv2Link.get_link_requests(self.xml)
102 def add_network(self, network):
103 network_tags = self.xml.xpath('//network[@name="%s"]' % network)
105 network_tag = etree.SubElement(self.xml.root, 'network', name=network)
107 network_tag = network_tags[0]
110 def add_nodes(self, nodes, network = None, no_dupes=False):
111 SFAv1Node.add_nodes(self.xml, nodes)
113 def merge_node(self, source_node_tag, network, no_dupes=False):
114 if no_dupes and self.get_node_element(node['hostname']):
115 # node already exists
118 network_tag = self.add_network(network)
119 network_tag.append(deepcopy(source_node_tag))
121 def add_links(self, links):
122 networks = self.get_networks()
123 if len(networks) > 0:
127 PGv2Link.add_links(xml, links)
129 def add_link_requests(self, links):
130 PGv2Link.add_link_requests(self.xml, links)
132 def add_slivers(self, slivers, network=None, sliver_urn=None, no_dupes=False, append=False):
133 # add slice name to network tag
134 network_tags = self.xml.xpath('//network')
136 network_tag = network_tags[0]
137 network_tag.set('slice', urn_to_hrn(sliver_urn)[0])
139 all_nodes = self.get_nodes()
140 all_nodenames = [ n['component_name'] for n in all_nodes ]
141 nodes_with_slivers = [sliver['hostname'] for sliver in slivers]
142 nodes_without_slivers = set(all_nodenames).difference(set(nodes_with_slivers))
145 for sliver in slivers:
146 node_elem = self.get_node_element(sliver['hostname'], network)
147 if not node_elem: continue
148 #thierry sliver_elem = etree.SubElement(node_elem, 'sliver')
149 sliver_elem = node_elem.add_element('sliver')
151 for tag in sliver['tags']:
152 #thierry etree.SubElement(sliver_elem, tag['tagname']).text = value=tag['value']
153 sliver_elem.add_element (tag['tagname'],{'text':tag['value']})
155 # remove all nodes without slivers
157 for node in nodes_without_slivers:
158 node_elem = self.get_node_element(node)
159 parent = node_elem.getparent()
160 parent.remove(node_elem)
162 def remove_slivers(self, slivers, network=None, no_dupes=False):
163 SFAv1Node.remove_slivers(self.xml, slivers)
165 def add_default_sliver_attribute(self, name, value, network=None):
167 defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
169 defaults = self.xml.xpath("//sliver_defaults" % network)
171 network_tag = self.xml.xpath("//network[@name='%s']" % network)
172 if isinstance(network_tag, list):
173 network_tag = network_tag[0]
174 defaults = self.xml.add_element('sliver_defaults', attrs={}, parent=network_tag)
175 elif isinstance(defaults, list):
176 defaults = defaults[0]
177 self.xml.add_attribute(defaults, name, value)
179 def add_sliver_attribute(self, hostname, name, value, network=None):
180 node = self.get_node_element(hostname, network)
181 sliver = node.find("sliver")
182 self.xml.add_attribute(sliver, name, value)
184 def remove_default_sliver_attribute(self, name, value, network=None):
186 defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
188 defaults = self.xml.xpath("//sliver_defaults" % network)
189 self.xml.remove_attribute(defaults, name, value)
191 def remove_sliver_attribute(self, hostname, name, value, network=None):
192 node = self.get_node_element(hostname, network)
193 sliver = node.find("sliver")
194 self.xml.remove_attribute(sliver, name, value)
196 def merge(self, in_rspec):
198 Merge contents for specified rspec with current rspec
201 from sfa.rspecs.rspec import RSpec
202 if isinstance(in_rspec, RSpec):
205 rspec = RSpec(in_rspec)
206 if rspec.version.type.lower() == 'protogeni':
207 from sfa.rspecs.rspec_converter import RSpecConverter
208 in_rspec = RSpecConverter.to_sfa_rspec(rspec.toxml())
209 rspec = RSpec(in_rspec)
211 # just copy over all networks
212 current_networks = self.get_networks()
213 networks = rspec.version.get_networks()
214 for network in networks:
215 current_network = network.get('name')
216 if current_network and current_network not in current_networks:
217 self.xml.root.append(network.element)
218 current_networks.append(current_network)
220 if __name__ == '__main__':
221 from sfa.rspecs.rspec import RSpec
222 from sfa.rspecs.rspec_elements import *
223 r = RSpec('/tmp/resources.rspec')
224 r.load_rspec_elements(SFAv1.elements)
225 print r.get(RSpecElements.NODE)