1 from copy import deepcopy
2 from StringIO import StringIO
3 from sfa.util.xrn import Xrn
4 from sfa.rspecs.version import RSpecVersion
5 from sfa.rspecs.elements.versions.pgv2Link import PGv2Link
6 from sfa.rspecs.elements.versions.pgv2Node import PGv2Node
7 from sfa.rspecs.elements.versions.pgv2SliverType import PGv2SliverType
8 from sfa.rspecs.elements.versions.pgv2Lease import PGv2Lease
9 from sfa.util.sfalogging import logger
11 class PGv2(RSpecVersion):
15 schema = 'http://www.protogeni.net/resources/rspec/2/ad.xsd'
16 namespace = 'http://www.protogeni.net/resources/rspec/2'
18 'flack': "http://www.protogeni.net/resources/rspec/ext/flack/1",
19 'planetlab': "http://www.planet-lab.org/resources/sfa/ext/planetlab/1",
20 'plos': "http://www.planet-lab.org/resources/sfa/ext/plos/1",
22 namespaces = dict(extensions.items() + [('default', namespace)])
25 def get_networks(self):
27 nodes = self.xml.xpath('//default:node[@component_manager_id] | //node[@component_manager_id]',
28 namespaces=self.namespaces)
30 if 'component_manager_id' in node.attrib:
31 network_urn = node.get('component_manager_id')
32 if network_urn.startswith("urn:"):
33 network_hrn = Xrn(network_urn).get_hrn()
35 # some component_manager_ids are hrns instead of urns??
36 network_hrn = network_urn
37 network_names.add(network_hrn)
38 network_names = list(network_names)
39 networks = [{"name": x} for x in network_names]
44 def get_nodes(self, filter=None):
45 return PGv2Node.get_nodes(self.xml, filter)
47 def get_nodes_with_slivers(self):
48 return PGv2Node.get_nodes_with_slivers(self.xml)
50 def add_nodes(self, nodes, check_for_dupes=False, rspec_content_type=None):
51 return PGv2Node.add_nodes(self.xml, nodes, rspec_content_type)
53 def merge_node(self, source_node_tag):
55 self.xml.root.append(deepcopy(source_node_tag))
59 def get_sliver_attributes(self, component_id, network=None):
60 nodes = self.get_nodes({'component_id': '*%s*' %component_id})
63 sliver = node.xpath('./default:sliver_type', namespaces=self.namespaces)
64 if sliver is not None and isinstance(sliver, list) and len(sliver) > 0:
66 return self.attributes_list(sliver)
72 def get_slice_attributes(self, network=None):
74 nodes_with_slivers = self.get_nodes_with_slivers()
75 # TODO: default sliver attributes in the PG rspec?
76 default_ns_prefix = self.namespaces['default']
77 for node in nodes_with_slivers:
78 sliver_attributes = self.get_sliver_attributes(node['component_id'], network)
79 for sliver_attribute in sliver_attributes:
80 name=str(sliver_attribute[0])
81 text =str(sliver_attribute[1])
82 attribs = sliver_attribute[2]
83 # we currently only suppor the <initscript> and <flack> attributes
85 attribute = {'name': 'flack_info', 'value': str(attribs), 'node_id': node}
86 slice_attributes.append(attribute)
87 elif 'initscript' in name:
88 if attribs is not None and 'name' in attribs:
89 value = attribs['name']
92 attribute = {'name': 'initscript', 'value': value, 'node_id': node}
93 slice_attributes.append(attribute)
95 return slice_attributes
97 def attributes_list(self, elem):
101 opts.append((e.tag, str(e.text).strip(), e.attrib))
104 def get_default_sliver_attributes(self, network=None):
107 def add_default_sliver_attribute(self, name, value, network=None):
110 def add_slivers(self, hostnames, attributes=None, sliver_urn=None, append=False):
111 if attributes is None: attributes=[]
112 # all nodes hould already be present in the rspec. Remove all
113 # nodes that done have slivers
114 for hostname in hostnames:
115 node_elems = self.get_nodes({'component_id': '*%s*' % hostname})
118 node_elem = node_elems[0]
120 # determine sliver types for this node
121 valid_sliver_types = ['emulab-openvz', 'raw-pc', 'plab-vserver', 'plab-vnode']
122 requested_sliver_type = None
123 for sliver_type in node_elem.get('slivers', []):
124 if sliver_type.get('type') in valid_sliver_types:
125 requested_sliver_type = sliver_type['type']
127 if not requested_sliver_type:
129 sliver = {'type': requested_sliver_type,
130 'pl_tags': attributes}
132 # remove available element
133 for available_elem in node_elem.xpath('./default:available | ./available'):
134 node_elem.remove(available_elem)
136 # remove interface elements
137 for interface_elem in node_elem.xpath('./default:interface | ./interface'):
138 node_elem.remove(interface_elem)
140 # remove existing sliver_type elements
141 for sliver_type in node_elem.get('slivers', []):
142 node_elem.element.remove(sliver_type.element)
145 node_elem.element.set('client_id', hostname)
150 #slice_id = sliver_info.get('slice_id', -1)
151 #node_id = sliver_info.get('node_id', -1)
152 #sliver_id = Xrn(xrn=sliver_urn, type='slice', id=str(node_id)).get_urn()
153 #node_elem.set('sliver_id', sliver_id)
155 # add the sliver type elemnt
156 PGv2SliverType.add_slivers(node_elem.element, sliver)
158 # remove all nodes without slivers
160 for node_elem in self.get_nodes():
161 if not node_elem['client_id']:
162 parent = node_elem.element.getparent()
163 parent.remove(node_elem.element)
165 def remove_slivers(self, slivers, network=None, no_dupes=False):
166 PGv2Node.remove_slivers(self.xml, slivers)
170 def get_links(self, network=None):
171 return PGv2Link.get_links(self.xml)
173 def get_link_requests(self):
174 return PGv2Link.get_link_requests(self.xml)
176 def add_links(self, links):
177 PGv2Link.add_links(self.xml.root, links)
179 def add_link_requests(self, link_tuples, append=False):
180 PGv2Link.add_link_requests(self.xml.root, link_tuples, append)
184 def get_leases(self, filter=None):
185 return PGv2Lease.get_leases(self.xml, filter)
187 def add_leases(self, leases, network = None, no_dupes=False):
188 PGv2Lease.add_leases(self.xml, leases)
192 def get_channels(self, filter=None):
195 def add_channels(self, channels, network = None, no_dupes=False):
200 def merge(self, in_rspec):
202 Merge contents for specified rspec with current rspec
204 from sfa.rspecs.rspec import RSpec
205 # just copy over all the child elements under the root element
206 if isinstance(in_rspec, basestring):
207 in_rspec = RSpec(in_rspec)
209 nodes = in_rspec.version.get_nodes()
210 # protogeni rspecs need to advertise the availabel sliver types
213 if not node['component_name']:
214 # this node element is part of a lease
216 if not node.has_key('sliver') or not node['sliver']:
217 node['sliver'] = {'name': 'plab-vserver'}
218 main_nodes.append(node)
219 self.add_nodes(main_nodes)
220 self.add_links(in_rspec.version.get_links())
223 leases = in_rspec.version.get_leases()
224 self.add_leases(leases)
226 #rspec = RSpec(in_rspec)
227 #for child in rspec.xml.iterchildren():
228 # self.xml.root.append(child)
233 # remove unncecessary elements, attributes
234 if self.type in ['request', 'manifest']:
235 # remove 'available' element from remaining node elements
236 self.xml.remove_element('//default:available | //available')
241 schema = 'http://www.protogeni.net/resources/rspec/2/ad.xsd'
242 template = '<rspec type="advertisement" xmlns="http://www.protogeni.net/resources/rspec/2" xmlns:flack="http://www.protogeni.net/resources/rspec/ext/flack/1" xmlns:plos="http://www.planet-lab.org/resources/sfa/ext/plos/1" xmlns:planetlab="http://www.planet-lab.org/resources/sfa/ext/planetlab/1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.protogeni.net/resources/rspec/2 http://www.protogeni.net/resources/rspec/2/ad.xsd http://www.planet-lab.org/resources/sfa/ext/planetlab/1 http://www.planet-lab.org/resources/sfa/ext/planetlab/1/planetlab.xsd http://www.planet-lab.org/resources/sfa/ext/plos/1 http://www.planet-lab.org/resources/sfa/ext/plos/1/plos.xsd"/>'
244 class PGv2Request(PGv2):
246 content_type = 'request'
247 schema = 'http://www.protogeni.net/resources/rspec/2/request.xsd'
248 template = '<rspec type="request" xmlns="http://www.protogeni.net/resources/rspec/2" xmlns:flack="http://www.protogeni.net/resources/rspec/ext/flack/1" xmlns:plos="http://www.planet-lab.org/resources/sfa/ext/plos/1" xmlns:planetlab="http://www.planet-lab.org/resources/sfa/ext/planetlab/1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.protogeni.net/resources/rspec/2 http://www.protogeni.net/resources/rspec/2/request.xsd http://www.planet-lab.org/resources/sfa/ext/planetlab/1 http://www.planet-lab.org/resources/sfa/ext/planetlab/1/planetlab.xsd http://www.planet-lab.org/resources/sfa/ext/plos/1 http://www.planet-lab.org/resources/sfa/ext/plos/1/plos.xsd"/>'
250 class PGv2Manifest(PGv2):
252 content_type = 'manifest'
253 schema = 'http://www.protogeni.net/resources/rspec/2/manifest.xsd'
254 template = '<rspec type="manifest" xmlns="http://www.protogeni.net/resources/rspec/2" xmlns:plos="http://www.planet-lab.org/resources/sfa/ext/plos/1" xmlns:flack="http://www.protogeni.net/resources/rspec/ext/flack/1" xmlns:planetlab="http://www.planet-lab.org/resources/sfa/ext/planetlab/1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.protogeni.net/resources/rspec/2 http://www.protogeni.net/resources/rspec/2/manifest.xsd http://www.planet-lab.org/resources/sfa/ext/planetlab/1 http://www.planet-lab.org/resources/sfa/ext/planetlab/1/planetlab.xsd http://www.planet-lab.org/resources/sfa/ext/plos/1 http://www.planet-lab.org/resources/sfa/ext/plos/1/plos.xsd"/>'
259 if __name__ == '__main__':
260 from sfa.rspecs.rspec import RSpec
261 from sfa.rspecs.rspec_elements import *
262 r = RSpec('/tmp/pg.rspec')
263 r.load_rspec_elements(PGv2.elements)
264 r.namespaces = PGv2.namespaces
265 print r.get(RSpecElements.NODE)