2 from sfa.util.xrn import hrn_to_urn, urn_to_hrn
3 from sfa.rspecs.rspec_version import BaseVersion
4 from sfa.rspecs.rspec_elements import RSpecElement, RSpecElements
5 from sfa.rspecs.elements.versions.pgv2Link import PGv2Link
7 class SFAv1(BaseVersion):
17 template = '<RSpec type="%s"></RSpec>' % type
19 def get_network_elements(self):
20 return self.xml.xpath('//network')
22 def get_networks(self):
23 return self.xml.xpath('//network[@name]/@name')
25 def get_node_element(self, hostname, network=None):
27 names = self.xml.xpath('//network[@name="%s"]//node/hostname' % network)
29 names = self.xml.xpath('//node/hostname')
31 if str(name.text).strip() == hostname:
32 return name.getparent()
35 def get_node_elements(self, network=None):
37 return self.xml.xpath('//network[@name="%s"]//node' % network)
39 return self.xml.xpath('//node')
41 def get_nodes(self, network=None):
43 nodes = self.xml.xpath('//node/hostname/text()')
45 nodes = self.xml.xpath('//network[@name="%s"]//node/hostname/text()' % network)
47 nodes = [node.strip() for node in nodes]
50 def get_nodes_with_slivers(self, network = None):
52 nodes = self.xml.xpath('//network[@name="%s"]//node[sliver]/hostname/text()' % network)
54 nodes = self.xml.xpath('//node[sliver]/hostname/text()')
56 nodes = [node.strip() for node in nodes]
59 def get_nodes_without_slivers(self, network=None):
60 xpath_nodes_without_slivers = '//node[not(sliver)]/hostname/text()'
61 xpath_nodes_without_slivers_in_network = '//network[@name="%s"]//node[not(sliver)]/hostname/text()'
63 return self.xml.xpath('//network[@name="%s"]//node[not(sliver)]/hostname/text()' % network)
65 return self.xml.xpath('//node[not(sliver)]/hostname/text()')
67 def attributes_list(self, elem):
68 # convert a list of attribute tags into list of tuples
69 # (tagnme, text_value)
73 opts.append((e.tag, str(e.text).strip()))
76 def get_default_sliver_attributes(self, network=None):
78 defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
80 defaults = self.xml.xpath("//sliver_defaults")
81 if isinstance(defaults, list) and defaults:
82 defaults = defaults[0]
83 return self.attributes_list(defaults)
85 def get_sliver_attributes(self, hostname, network=None):
87 node = self.get_node_element(hostname, network)
88 #sliver = node.find("sliver")
89 slivers = node.xpath('./sliver')
90 if isinstance(slivers, list) and slivers:
91 attributes = self.attributes_list(slivers[0])
94 def get_slice_attributes(self, network=None):
96 nodes_with_slivers = self.get_nodes_with_slivers(network)
97 for default_attribute in self.get_default_sliver_attributes(network):
98 attribute = {'name': str(default_attribute[0]), 'value': str(default_attribute[1]), 'node_id': None}
99 slice_attributes.append(attribute)
100 for node in nodes_with_slivers:
101 sliver_attributes = self.get_sliver_attributes(node, network)
102 for sliver_attribute in sliver_attributes:
103 attribute = {'name': str(sliver_attribute[0]), 'value': str(sliver_attribute[1]), 'node_id': node}
104 slice_attributes.append(attribute)
105 return slice_attributes
107 def get_site_nodes(self, siteid, network=None):
109 nodes = self.xml.xpath('//network[@name="%s"]/site[@id="%s"]/node/hostname/text()' % \
112 nodes = self.xml.xpath('//site[@id="%s"]/node/hostname/text()' % siteid)
115 def get_links(self, network=None):
116 links = PGv2Link.get_links(self.xml)
119 def get_link(self, fromnode, tonode, network=None):
120 fromsite = fromnode.getparent()
121 tosite = tonode.getparent()
122 fromid = fromsite.get("id")
123 toid = tosite.get("id")
125 query = "//network[@name='%s']" % network + "/link[@endpoints = '%s %s']"
127 query = "//link[@endpoints = '%s %s']"
129 results = self.rspec.xpath(query % (fromid, toid))
131 results = self.rspec.xpath(query % (toid, fromid))
134 def query_links(self, fromnode, tonode, network=None):
135 return get_link(fromnode, tonode, network)
137 def get_vlinks(self, network=None):
140 vlinks = self.xml.xpath("//network[@name='%s']//vlink" % network)
142 vlinks = self.xml.xpath("//vlink")
144 endpoints = vlink.get("endpoints")
145 (end1, end2) = endpoints.split()
147 node1 = self.xml.xpath('//network[@name="%s"]//node[@id="%s"]/hostname/text()' % \
149 node2 = self.xml.xpath('//network[@name="%s"]//node[@id="%s"]/hostname/text()' % \
152 node1 = self.xml.xpath('//node[@id="%s"]/hostname/text()' % end1)[0]
153 node2 = self.xml.xpath('//node[@id="%s"]/hostname/text()' % end2)[0]
154 desc = "%s <--> %s" % (node1, node2)
155 kbps = vlink.find("kbps")
156 vlinklist.append((endpoints, desc, kbps.text))
159 def get_vlink(self, endponts, network=None):
161 query = "//network[@name='%s']//vlink[@endpoints = '%s']" % (network, endpoints)
163 query = "//vlink[@endpoints = '%s']" % (network, endpoints)
164 results = self.rspec.xpath(query)
167 def query_vlinks(self, endpoints, network=None):
168 return get_vlink(endpoints,network)
175 def add_network(self, network):
176 network_tags = self.xml.xpath('//network[@name="%s"]' % network)
178 network_tag = etree.SubElement(self.xml.root, 'network', name=network)
180 network_tag = network_tags[0]
183 def add_nodes(self, nodes, network = None, no_dupes=False):
184 if not isinstance(nodes, list):
188 self.get_node_element(node['hostname']):
189 # node already exists
192 network_tag = self.xml.root
193 if 'network' in node:
194 network = node['network']
195 network_tag = self.add_network(network)
197 node_tag = etree.SubElement(network_tag, 'node')
198 if 'network' in node:
199 node_tag.set('component_manager_id', hrn_to_urn(network, 'authority+sa'))
201 node_tag.set('component_id', node['urn'])
202 if 'site_urn' in node:
203 node_tag.set('site_id', node['site_urn'])
204 if 'node_id' in node:
205 node_tag.set('node_id', 'n'+str(node['node_id']))
206 if 'boot_state' in node:
207 node_tag.set('boot_state', node['boot_state'])
208 if 'hostname' in node:
209 node_tag.set('component_name', node['hostname'])
210 hostname_tag = etree.SubElement(node_tag, 'hostname').text = node['hostname']
211 if 'interfaces' in node:
213 for interface in node['interfaces']:
214 if 'bwlimit' in interface and interface['bwlimit']:
215 bwlimit = etree.SubElement(node_tag, 'bw_limit', units='kbps').text = str(interface['bwlimit']/1000)
216 comp_id = hrn_to_urn(network, 'pc%s:eth%s' % (node['node_id'], i))
217 interface_tag = etree.SubElement(node_tag, 'interface', component_id=comp_id)
219 if 'bw_unallocated' in node:
220 bw_unallocated = etree.SubElement(node_tag, 'bw_unallocated', units='kbps').text = str(node['bw_unallocated']/1000)
222 for tag in node['tags']:
223 # expose this hard wired list of tags, plus the ones that are marked 'sfa' in their category
224 if tag['tagname'] in ['fcdistro', 'arch'] or 'sfa' in tag['category'].split('/'):
225 tag_element = etree.SubElement(node_tag, tag['tagname']).text=tag['value']
228 longitude = str(node['site']['longitude'])
229 latitude = str(node['site']['latitude'])
230 location = etree.SubElement(node_tag, 'location', country='unknown', \
231 longitude=longitude, latitude=latitude)
233 def merge_node(self, source_node_tag, network, no_dupes=False):
234 if no_dupes and self.get_node_element(node['hostname']):
235 # node already exists
238 network_tag = self.add_network(network)
239 network_tag.append(deepcopy(source_node_tag))
241 def add_interfaces(self, interfaces):
244 def add_links(self, links):
245 PGv2Link.add_links(self.xml, links)
247 def add_slivers(self, slivers, network=None, sliver_urn=None, no_dupes=False, append=False):
248 # add slice name to network tag
249 network_tags = self.xml.xpath('//network')
251 network_tag = network_tags[0]
252 network_tag.set('slice', urn_to_hrn(sliver_urn)[0])
254 all_nodes = self.get_nodes()
255 nodes_with_slivers = [sliver['hostname'] for sliver in slivers]
256 nodes_without_slivers = set(all_nodes).difference(nodes_with_slivers)
259 for sliver in slivers:
260 node_elem = self.get_node_element(sliver['hostname'], network)
261 if not node_elem: continue
262 sliver_elem = etree.SubElement(node_elem, 'sliver')
264 for tag in sliver['tags']:
265 etree.SubElement(sliver_elem, tag['tagname']).text = value=tag['value']
267 # remove all nodes without slivers
269 for node in nodes_without_slivers:
270 node_elem = self.get_node_element(node)
271 parent = node_elem.getparent()
272 parent.remove(node_elem)
274 def remove_slivers(self, slivers, network=None, no_dupes=False):
275 for sliver in slivers:
276 node_elem = self.get_node_element(sliver['hostname'], network)
277 sliver_elem = node_elem.find('sliver')
278 if sliver_elem != None:
279 node_elem.remove(sliver_elem)
281 def add_default_sliver_attribute(self, name, value, network=None):
283 defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
285 defaults = self.xml.xpath("//sliver_defaults" % network)
287 network_tag = self.xml.xpath("//network[@name='%s']" % network)
288 if isinstance(network_tag, list):
289 network_tag = network_tag[0]
290 defaults = self.xml.add_element('sliver_defaults', attrs={}, parent=network_tag)
291 elif isinstance(defaults, list):
292 defaults = defaults[0]
293 self.xml.add_attribute(defaults, name, value)
295 def add_sliver_attribute(self, hostname, name, value, network=None):
296 node = self.get_node_element(hostname, network)
297 sliver = node.find("sliver")
298 self.xml.add_attribute(sliver, name, value)
300 def remove_default_sliver_attribute(self, name, value, network=None):
302 defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
304 defaults = self.xml.xpath("//sliver_defaults" % network)
305 self.xml.remove_attribute(defaults, name, value)
307 def remove_sliver_attribute(self, hostname, name, value, network=None):
308 node = self.get_node_element(hostname, network)
309 sliver = node.find("sliver")
310 self.xml.remove_attribute(sliver, name, value)
312 def add_vlink(self, fromhost, tohost, kbps, network=None):
313 fromnode = self.get_node_element(fromhost, network)
314 tonode = self.get_node_element(tohost, network)
315 links = self.get_link(fromnode, tonode, network)
318 vlink = etree.SubElement(link, "vlink")
319 fromid = fromnode.get("id")
320 toid = tonode.get("id")
321 vlink.set("endpoints", "%s %s" % (fromid, toid))
322 self.xml.add_attribute(vlink, "kbps", kbps)
325 def remove_vlink(self, endpoints, network=None):
326 vlinks = self.query_vlinks(endpoints, network)
328 vlink.getparent().remove(vlink)
331 def merge(self, in_rspec):
333 Merge contents for specified rspec with current rspec
336 from sfa.rspecs.rspec import RSpec
337 if isinstance(in_rspec, RSpec):
340 rspec = RSpec(in_rspec)
341 if rspec.version.type.lower() == 'protogeni':
342 from sfa.rspecs.rspec_converter import RSpecConverter
343 in_rspec = RSpecConverter.to_sfa_rspec(rspec.toxml())
344 rspec = RSpec(in_rspec)
346 # just copy over all networks
347 current_networks = self.get_networks()
348 networks = rspec.version.get_network_elements()
349 for network in networks:
350 current_network = network.get('name')
351 if current_network and current_network not in current_networks:
352 self.xml.root.append(network)
353 current_networks.append(current_network)
355 if __name__ == '__main__':
356 from sfa.rspecs.rspec import RSpec
357 from sfa.rspecs.rspec_elements import *
358 r = RSpec('/tmp/resources.rspec')
359 r.load_rspec_elements(SFAv1.elements)
360 print r.get(RSpecElements.NODE)