2 from sfa.util.xrn import hrn_to_urn, urn_to_hrn
3 from sfa.util.plxrn import PlXrn
4 from sfa.rspecs.rspec_version import BaseVersion
5 from sfa.rspecs.rspec_elements import RSpecElement, RSpecElements
6 from sfa.rspecs.elements.versions.pgv2Link import PGv2Link
8 class SFAv1(BaseVersion):
18 template = '<RSpec type="%s"></RSpec>' % type
20 def get_network_elements(self):
21 return self.xml.xpath('//network')
23 def get_networks(self):
24 return self.xml.xpath('//network[@name]/@name')
26 def get_node_element(self, hostname, network=None):
28 names = self.xml.xpath('//network[@name="%s"]//node/hostname' % network)
30 names = self.xml.xpath('//node/hostname')
32 if str(name.text).strip() == hostname:
33 return name.getparent()
36 def get_node_elements(self, network=None):
38 return self.xml.xpath('//network[@name="%s"]//node' % network)
40 return self.xml.xpath('//node')
42 def get_nodes(self, network=None):
44 nodes = self.xml.xpath('//node/hostname/text()')
46 nodes = self.xml.xpath('//network[@name="%s"]//node/hostname/text()' % network)
48 nodes = [node.strip() for node in nodes]
51 def get_nodes_with_slivers(self, network = None):
53 nodes = self.xml.xpath('//network[@name="%s"]//node[sliver]/hostname/text()' % network)
55 nodes = self.xml.xpath('//node[sliver]/hostname/text()')
57 nodes = [node.strip() for node in nodes]
60 def get_nodes_without_slivers(self, network=None):
61 xpath_nodes_without_slivers = '//node[not(sliver)]/hostname/text()'
62 xpath_nodes_without_slivers_in_network = '//network[@name="%s"]//node[not(sliver)]/hostname/text()'
64 return self.xml.xpath('//network[@name="%s"]//node[not(sliver)]/hostname/text()' % network)
66 return self.xml.xpath('//node[not(sliver)]/hostname/text()')
68 def attributes_list(self, elem):
69 # convert a list of attribute tags into list of tuples
70 # (tagnme, text_value)
74 opts.append((e.tag, str(e.text).strip()))
77 def get_default_sliver_attributes(self, network=None):
79 defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
81 defaults = self.xml.xpath("//sliver_defaults")
82 if isinstance(defaults, list) and defaults:
83 defaults = defaults[0]
84 return self.attributes_list(defaults)
86 def get_sliver_attributes(self, hostname, network=None):
88 node = self.get_node_element(hostname, network)
89 #sliver = node.find("sliver")
90 slivers = node.xpath('./sliver')
91 if isinstance(slivers, list) and slivers:
92 attributes = self.attributes_list(slivers[0])
95 def get_slice_attributes(self, network=None):
97 nodes_with_slivers = self.get_nodes_with_slivers(network)
98 for default_attribute in self.get_default_sliver_attributes(network):
99 attribute = {'name': str(default_attribute[0]), 'value': str(default_attribute[1]), 'node_id': None}
100 slice_attributes.append(attribute)
101 for node in nodes_with_slivers:
102 sliver_attributes = self.get_sliver_attributes(node, network)
103 for sliver_attribute in sliver_attributes:
104 attribute = {'name': str(sliver_attribute[0]), 'value': str(sliver_attribute[1]), 'node_id': node}
105 slice_attributes.append(attribute)
106 return slice_attributes
108 def get_site_nodes(self, siteid, network=None):
110 nodes = self.xml.xpath('//network[@name="%s"]/site[@id="%s"]/node/hostname/text()' % \
113 nodes = self.xml.xpath('//site[@id="%s"]/node/hostname/text()' % siteid)
116 def get_links(self, network=None):
117 return PGv2Link.get_links(self.xml)
119 def get_link_requests(self):
120 return PGv2Link.get_links(self.xml)
122 def get_link(self, fromnode, tonode, network=None):
123 fromsite = fromnode.getparent()
124 tosite = tonode.getparent()
125 fromid = fromsite.get("id")
126 toid = tosite.get("id")
128 query = "//network[@name='%s']" % network + "/link[@endpoints = '%s %s']"
130 query = "//link[@endpoints = '%s %s']"
132 results = self.rspec.xpath(query % (fromid, toid))
134 results = self.rspec.xpath(query % (toid, fromid))
137 def query_links(self, fromnode, tonode, network=None):
138 return get_link(fromnode, tonode, network)
140 def get_vlinks(self, network=None):
143 vlinks = self.xml.xpath("//network[@name='%s']//vlink" % network)
145 vlinks = self.xml.xpath("//vlink")
147 endpoints = vlink.get("endpoints")
148 (end1, end2) = endpoints.split()
150 node1 = self.xml.xpath('//network[@name="%s"]//node[@id="%s"]/hostname/text()' % \
152 node2 = self.xml.xpath('//network[@name="%s"]//node[@id="%s"]/hostname/text()' % \
155 node1 = self.xml.xpath('//node[@id="%s"]/hostname/text()' % end1)[0]
156 node2 = self.xml.xpath('//node[@id="%s"]/hostname/text()' % end2)[0]
157 desc = "%s <--> %s" % (node1, node2)
158 kbps = vlink.find("kbps")
159 vlinklist.append((endpoints, desc, kbps.text))
162 def get_vlink(self, endponts, network=None):
164 query = "//network[@name='%s']//vlink[@endpoints = '%s']" % (network, endpoints)
166 query = "//vlink[@endpoints = '%s']" % (network, endpoints)
167 results = self.rspec.xpath(query)
170 def query_vlinks(self, endpoints, network=None):
171 return get_vlink(endpoints,network)
178 def add_network(self, network):
179 network_tags = self.xml.xpath('//network[@name="%s"]' % network)
181 network_tag = etree.SubElement(self.xml.root, 'network', name=network)
183 network_tag = network_tags[0]
186 def add_nodes(self, nodes, network = None, no_dupes=False):
187 if not isinstance(nodes, list):
191 self.get_node_element(node['hostname']):
192 # node already exists
195 network_tag = self.xml.root
196 if 'network' in node:
197 network = node['network']
198 network_tag = self.add_network(network)
200 node_tag = etree.SubElement(network_tag, 'node')
201 if 'network' in node:
202 node_tag.set('component_manager_id', hrn_to_urn(network, 'authority+sa'))
204 node_tag.set('component_id', node['urn'])
205 if 'site_urn' in node:
206 node_tag.set('site_id', node['site_urn'])
207 if 'node_id' in node:
208 node_tag.set('node_id', 'n'+str(node['node_id']))
209 if 'boot_state' in node:
210 node_tag.set('boot_state', node['boot_state'])
211 if 'hostname' in node:
212 node_tag.set('component_name', node['hostname'])
213 hostname_tag = etree.SubElement(node_tag, 'hostname').text = node['hostname']
214 if 'interfaces' in node:
216 for interface in node['interfaces']:
217 if 'bwlimit' in interface and interface['bwlimit']:
218 bwlimit = etree.SubElement(node_tag, 'bw_limit', units='kbps').text = str(interface['bwlimit']/1000)
219 comp_id = PlXrn(auth=network, interface='node%s:eth%s' % (node['node_id'], i)).get_urn()
220 interface_tag = etree.SubElement(node_tag, 'interface', component_id=comp_id)
222 if 'bw_unallocated' in node:
223 bw_unallocated = etree.SubElement(node_tag, 'bw_unallocated', units='kbps').text = str(node['bw_unallocated']/1000)
225 for tag in node['tags']:
226 # expose this hard wired list of tags, plus the ones that are marked 'sfa' in their category
227 if tag['tagname'] in ['fcdistro', 'arch'] or 'sfa' in tag['category'].split('/'):
228 tag_element = etree.SubElement(node_tag, tag['tagname']).text=tag['value']
231 longitude = str(node['site']['longitude'])
232 latitude = str(node['site']['latitude'])
233 location = etree.SubElement(node_tag, 'location', country='unknown', \
234 longitude=longitude, latitude=latitude)
236 def merge_node(self, source_node_tag, network, no_dupes=False):
237 if no_dupes and self.get_node_element(node['hostname']):
238 # node already exists
241 network_tag = self.add_network(network)
242 network_tag.append(deepcopy(source_node_tag))
244 def add_interfaces(self, interfaces):
247 def add_links(self, links):
248 PGv2Link.add_links(self.xml, links)
250 def add_slivers(self, slivers, network=None, sliver_urn=None, no_dupes=False, append=False):
251 # add slice name to network tag
252 network_tags = self.xml.xpath('//network')
254 network_tag = network_tags[0]
255 network_tag.set('slice', urn_to_hrn(sliver_urn)[0])
257 all_nodes = self.get_nodes()
258 nodes_with_slivers = [sliver['hostname'] for sliver in slivers]
259 nodes_without_slivers = set(all_nodes).difference(nodes_with_slivers)
262 for sliver in slivers:
263 node_elem = self.get_node_element(sliver['hostname'], network)
264 if not node_elem: continue
265 sliver_elem = etree.SubElement(node_elem, 'sliver')
267 for tag in sliver['tags']:
268 etree.SubElement(sliver_elem, tag['tagname']).text = value=tag['value']
270 # remove all nodes without slivers
272 for node in nodes_without_slivers:
273 node_elem = self.get_node_element(node)
274 parent = node_elem.getparent()
275 parent.remove(node_elem)
277 def remove_slivers(self, slivers, network=None, no_dupes=False):
278 for sliver in slivers:
279 node_elem = self.get_node_element(sliver['hostname'], network)
280 sliver_elem = node_elem.find('sliver')
281 if sliver_elem != None:
282 node_elem.remove(sliver_elem)
284 def add_default_sliver_attribute(self, name, value, network=None):
286 defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
288 defaults = self.xml.xpath("//sliver_defaults" % network)
290 network_tag = self.xml.xpath("//network[@name='%s']" % network)
291 if isinstance(network_tag, list):
292 network_tag = network_tag[0]
293 defaults = self.xml.add_element('sliver_defaults', attrs={}, parent=network_tag)
294 elif isinstance(defaults, list):
295 defaults = defaults[0]
296 self.xml.add_attribute(defaults, name, value)
298 def add_sliver_attribute(self, hostname, name, value, network=None):
299 node = self.get_node_element(hostname, network)
300 sliver = node.find("sliver")
301 self.xml.add_attribute(sliver, name, value)
303 def remove_default_sliver_attribute(self, name, value, network=None):
305 defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
307 defaults = self.xml.xpath("//sliver_defaults" % network)
308 self.xml.remove_attribute(defaults, name, value)
310 def remove_sliver_attribute(self, hostname, name, value, network=None):
311 node = self.get_node_element(hostname, network)
312 sliver = node.find("sliver")
313 self.xml.remove_attribute(sliver, name, value)
315 def add_vlink(self, fromhost, tohost, kbps, network=None):
316 fromnode = self.get_node_element(fromhost, network)
317 tonode = self.get_node_element(tohost, network)
318 links = self.get_link(fromnode, tonode, network)
321 vlink = etree.SubElement(link, "vlink")
322 fromid = fromnode.get("id")
323 toid = tonode.get("id")
324 vlink.set("endpoints", "%s %s" % (fromid, toid))
325 self.xml.add_attribute(vlink, "kbps", kbps)
328 def remove_vlink(self, endpoints, network=None):
329 vlinks = self.query_vlinks(endpoints, network)
331 vlink.getparent().remove(vlink)
334 def merge(self, in_rspec):
336 Merge contents for specified rspec with current rspec
339 from sfa.rspecs.rspec import RSpec
340 if isinstance(in_rspec, RSpec):
343 rspec = RSpec(in_rspec)
344 if rspec.version.type.lower() == 'protogeni':
345 from sfa.rspecs.rspec_converter import RSpecConverter
346 in_rspec = RSpecConverter.to_sfa_rspec(rspec.toxml())
347 rspec = RSpec(in_rspec)
349 # just copy over all networks
350 current_networks = self.get_networks()
351 networks = rspec.version.get_network_elements()
352 for network in networks:
353 current_network = network.get('name')
354 if current_network and current_network not in current_networks:
355 self.xml.root.append(network)
356 current_networks.append(current_network)
358 if __name__ == '__main__':
359 from sfa.rspecs.rspec import RSpec
360 from sfa.rspecs.rspec_elements import *
361 r = RSpec('/tmp/resources.rspec')
362 r.load_rspec_elements(SFAv1.elements)
363 print r.get(RSpecElements.NODE)