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.rspecs.version import RSpecVersion
7 from sfa.rspecs.elements.element import Element
8 from sfa.rspecs.elements.versions.pgv2Link import PGv2Link
9 from sfa.rspecs.elements.versions.nitosv1Node import NITOSv1Node
10 from sfa.rspecs.elements.versions.nitosv1Sliver import NITOSv1Sliver
11 from sfa.rspecs.elements.versions.nitosv1Lease import NITOSv1Lease
12 from sfa.rspecs.elements.versions.nitosv1Channel import NITOSv1Channel
14 class NITOSv1(RSpecVersion):
23 template = '<RSpec type="%s"></RSpec>' % type
26 def get_networks(self):
27 network_elems = self.xml.xpath('//network')
28 networks = [network_elem.get_instance(fields=['name', 'slice']) for \
29 network_elem in network_elems]
33 def add_network(self, network):
34 network_tags = self.xml.xpath('//network[@name="%s"]' % network)
36 network_tag = self.xml.add_element('network', name=network)
38 network_tag = network_tags[0]
44 def get_nodes(self, filter=None):
45 return NITOSv1Node.get_nodes(self.xml, filter)
47 def get_nodes_with_slivers(self):
48 return NITOSv1Node.get_nodes_with_slivers(self.xml)
50 def add_nodes(self, nodes, network = None, no_dupes=False):
51 NITOSv1Node.add_nodes(self.xml, nodes)
53 def merge_node(self, source_node_tag, network, no_dupes=False):
54 if no_dupes and self.get_node_element(node['hostname']):
58 network_tag = self.add_network(network)
59 network_tag.append(deepcopy(source_node_tag))
63 def add_slivers(self, hostnames, attributes=[], sliver_urn=None, append=False):
64 # add slice name to network tag
65 network_tags = self.xml.xpath('//network')
67 network_tag = network_tags[0]
68 network_tag.set('slice', urn_to_hrn(sliver_urn)[0])
71 sliver = {'name':sliver_urn,
72 'pl_tags': attributes}
73 for hostname in hostnames:
75 sliver['name'] = sliver_urn
76 node_elems = self.get_nodes({'component_id': '*%s*' % hostname})
79 node_elem = node_elems[0]
80 NITOSv1Sliver.add_slivers(node_elem.element, sliver)
82 # remove all nodes without slivers
84 for node_elem in self.get_nodes():
85 if not node_elem['slivers']:
86 parent = node_elem.element.getparent()
87 parent.remove(node_elem.element)
90 def remove_slivers(self, slivers, network=None, no_dupes=False):
91 NITOSv1Node.remove_slivers(self.xml, slivers)
93 def get_slice_attributes(self, network=None):
95 nodes_with_slivers = self.get_nodes_with_slivers()
96 for default_attribute in self.get_default_sliver_attributes(network):
97 attribute = default_attribute.copy()
98 attribute['node_id'] = None
99 attributes.append(attribute)
100 for node in nodes_with_slivers:
101 nodename=node['component_name']
102 sliver_attributes = self.get_sliver_attributes(nodename, network)
103 for sliver_attribute in sliver_attributes:
104 sliver_attribute['node_id'] = nodename
105 attributes.append(sliver_attribute)
109 def add_sliver_attribute(self, component_id, name, value, network=None):
110 nodes = self.get_nodes({'component_id': '*%s*' % component_id})
111 if nodes is not None and isinstance(nodes, list) and len(nodes) > 0:
113 slivers = NITOSv1Sliver.get_slivers(node)
116 NITOSv1Sliver.add_sliver_attribute(sliver, name, value)
118 # should this be an assert / raise an exception?
119 logger.error("WARNING: failed to find component_id %s" % component_id)
121 def get_sliver_attributes(self, component_id, network=None):
122 nodes = self.get_nodes({'component_id': '*%s*' % component_id})
124 if nodes is not None and isinstance(nodes, list) and len(nodes) > 0:
126 slivers = NITOSv1Sliver.get_slivers(node.element)
127 if slivers is not None and isinstance(slivers, list) and len(slivers) > 0:
129 attribs = NITOSv1Sliver.get_sliver_attributes(sliver.element)
132 def remove_sliver_attribute(self, component_id, name, value, network=None):
133 attribs = self.get_sliver_attributes(component_id)
134 for attrib in attribs:
135 if attrib['name'] == name and attrib['value'] == value:
136 #attrib.element.delete()
137 parent = attrib.element.getparent()
138 parent.remove(attrib.element)
140 def add_default_sliver_attribute(self, name, value, network=None):
142 defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
144 defaults = self.xml.xpath("//sliver_defaults")
147 network_tag = self.xml.xpath("//network[@name='%s']" % network)
149 network_tag = self.xml.xpath("//network")
150 if isinstance(network_tag, list):
151 network_tag = network_tag[0]
152 defaults = network_tag.add_element('sliver_defaults')
153 elif isinstance(defaults, list):
154 defaults = defaults[0]
155 NITOSv1Sliver.add_sliver_attribute(defaults, name, value)
157 def get_default_sliver_attributes(self, network=None):
159 defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
161 defaults = self.xml.xpath("//sliver_defaults")
162 if not defaults: return []
163 return NITOSv1Sliver.get_sliver_attributes(defaults[0])
165 def remove_default_sliver_attribute(self, name, value, network=None):
166 attribs = self.get_default_sliver_attributes(network)
167 for attrib in attribs:
168 if attrib['name'] == name and attrib['value'] == value:
169 #attrib.element.delete()
170 parent = attrib.element.getparent()
171 parent.remove(attrib.element)
175 def get_links(self, network=None):
176 return PGv2Link.get_links(self.xml)
178 def get_link_requests(self):
179 return PGv2Link.get_link_requests(self.xml)
181 def add_links(self, links):
182 networks = self.get_networks()
183 if len(networks) > 0:
184 xml = networks[0].element
187 PGv2Link.add_links(xml, links)
189 def add_link_requests(self, links):
190 PGv2Link.add_link_requests(self.xml, links)
194 def merge(self, in_rspec):
196 Merge contents for specified rspec with current rspec
202 from sfa.rspecs.rspec import RSpec
203 if isinstance(in_rspec, RSpec):
206 rspec = RSpec(in_rspec)
207 if rspec.version.type.lower() == 'protogeni':
208 from sfa.rspecs.rspec_converter import RSpecConverter
209 in_rspec = RSpecConverter.to_sfa_rspec(rspec.toxml())
210 rspec = RSpec(in_rspec)
212 # just copy over all networks
213 current_networks = self.get_networks()
214 networks = rspec.version.get_networks()
215 for network in networks:
216 current_network = network.get('name')
217 if current_network and current_network not in current_networks:
218 self.xml.append(network.element)
219 current_networks.append(current_network)
223 def get_leases(self, filter=None):
224 return NITOSv1Lease.get_leases(self.xml, filter)
226 def add_leases(self, leases, channels, network = None, no_dupes=False):
227 NITOSv1Lease.add_leases(self.xml, leases, channels)
231 def get_channels(self, filter=None):
232 return NITOSv1Channel.get_channels(self.xml, filter)
234 def add_channels(self, channels, network = None, no_dupes=False):
235 NITOSv1Channel.add_channels(self.xml, channels)
239 if __name__ == '__main__':
240 from sfa.rspecs.rspec import RSpec
241 from sfa.rspecs.rspec_elements import *
242 r = RSpec('/tmp/resources.rspec')
243 r.load_rspec_elements(SFAv1.elements)
244 print r.get(RSpecElements.NODE)