1 from copy import deepcopy
2 from StringIO import StringIO
3 from sfa.util.xrn import Xrn, urn_to_sliver_id
4 from sfa.util.plxrn import hostname_to_urn, xrn_to_hostname
5 from sfa.rspecs.baseversion import BaseVersion
6 from sfa.rspecs.elements.versions.pgv2Link import PGv2Link
7 from sfa.rspecs.elements.versions.pgv2Node import PGv2Node
8 from sfa.rspecs.elements.versions.pgv2SliverType import PGv2SliverType
10 class PGv2(BaseVersion):
14 schema = 'http://www.protogeni.net/resources/rspec/2/ad.xsd'
15 namespace = 'http://www.protogeni.net/resources/rspec/2'
17 'flack': "http://www.protogeni.net/resources/rspec/ext/flack/1",
18 'planetlab': "http://www.planet-lab.org/resources/sfa/ext/planetlab/1",
19 'plos': "http://www.planet-lab.org/resources/sfa/ext/plos/1",
21 namespaces = dict(extensions.items() + [('default', namespace)])
24 def get_networks(self):
26 nodes = self.xml.xpath('//default:node[@component_manager_id] | //node[@component_manager_id]', namespaces=self.namespaces)
28 if 'component_manager_id' in node.attrib:
29 network_urn = node.get('component_manager_id')
30 if network_urn.startswith("urn:"):
31 network_hrn = Xrn(network_urn).get_hrn()
33 # some component_manager_ids are hrns instead of urns??
34 network_hrn = network_urn
35 network_names.add(network_hrn)
36 network_names = list(network_names)
37 networks = [{"name": x} for x in network_names]
42 def get_nodes(self, filter=None):
43 return PGv2Node.get_nodes(self.xml, filter)
45 def get_nodes_with_slivers(self):
46 return PGv2Node.get_nodes_with_slivers(self.xml)
48 def add_nodes(self, nodes, check_for_dupes=False):
49 return PGv2Node.add_nodes(self.xml, nodes)
51 def merge_node(self, source_node_tag):
53 self.xml.root.append(deepcopy(source_node_tag))
57 def get_sliver_attributes(self, hostname, network=None):
58 nodes = self.get_nodes({'component_id': '*%s*' %hostname})
60 if nodes is not None and isinstance(nodes, list) and len(nodes) > 0:
62 sliver = node.xpath('./default:sliver_type', namespaces=self.namespaces)
63 if sliver is not None and isinstance(sliver, list) and len(sliver) > 0:
65 #attribs = self.attributes_list(sliver)
68 def get_slice_attributes(self, network=None):
70 nodes_with_slivers = self.get_nodes_with_slivers()
71 # TODO: default sliver attributes in the PG rspec?
72 default_ns_prefix = self.namespaces['default']
73 for node in nodes_with_slivers:
74 sliver_attributes = self.get_sliver_attributes(node, network)
75 for sliver_attribute in sliver_attributes:
76 name=str(sliver_attribute[0])
77 text =str(sliver_attribute[1])
78 attribs = sliver_attribute[2]
79 # we currently only suppor the <initscript> and <flack> attributes
81 attribute = {'name': 'flack_info', 'value': str(attribs), 'node_id': node}
82 slice_attributes.append(attribute)
83 elif 'initscript' in name:
84 if attribs is not None and 'name' in attribs:
85 value = attribs['name']
88 attribute = {'name': 'initscript', 'value': value, 'node_id': node}
89 slice_attributes.append(attribute)
91 return slice_attributes
93 def attributes_list(self, elem):
97 opts.append((e.tag, str(e.text).strip(), e.attrib))
100 def get_default_sliver_attributes(self, network=None):
103 def add_default_sliver_attribute(self, name, value, network=None):
106 def add_slivers(self, hostnames, attributes=[], sliver_urn=None, append=False):
107 # all nodes hould already be present in the rspec. Remove all
108 # nodes that done have slivers
109 for hostname in hostnames:
110 node_elems = self.get_nodes({'component_id': '*%s*' % hostname})
113 node_elem = node_elems[0]
115 # determine sliver types for this node
116 valid_sliver_types = ['emulab-openvz', 'raw-pc', 'plab-vserver', 'plab-vnode']
117 requested_sliver_type = None
118 for sliver_type in node_elem.get('slivers', []):
119 if sliver_type.get('type') in valid_sliver_types:
120 requested_sliver_type = sliver_type['type']
122 if not requested_sliver_type:
124 sliver = {'type': requested_sliver_type,
125 'pl_tags': attributes}
127 # remove available element
128 for available_elem in node_elem.xpath('./default:available | ./available'):
129 node_elem.remove(available_elem)
131 # remove interface elements
132 for interface_elem in node_elem.xpath('./default:interface | ./interface'):
133 node_elem.remove(interface_elem)
135 # remove existing sliver_type elements
136 for sliver_type in node_elem.get('slivers', []):
137 node_elem.element.remove(sliver_type.element)
140 node_elem.element.set('client_id', hostname)
145 #slice_id = sliver_info.get('slice_id', -1)
146 #node_id = sliver_info.get('node_id', -1)
147 #sliver_id = urn_to_sliver_id(sliver_urn, slice_id, node_id)
148 #node_elem.set('sliver_id', sliver_id)
150 # add the sliver type elemnt
151 PGv2SliverType.add_slivers(node_elem.element, sliver)
153 # remove all nodes without slivers
155 for node_elem in self.get_nodes():
156 if not node_elem['client_id']:
157 parent = node_elem.element.getparent()
158 parent.remove(node_elem.element)
160 def remove_slivers(self, slivers, network=None, no_dupes=False):
161 PGv2Node.remove_slivers(self.xml, slivers)
165 def get_links(self, network=None):
166 return PGv2Link.get_links(self.xml)
168 def get_link_requests(self):
169 return PGv2Link.get_link_requests(self.xml)
171 def add_links(self, links):
172 PGv2Link.add_links(self.xml.root, links)
174 def add_link_requests(self, link_tuples, append=False):
175 PGv2Link.add_link_requests(self.xml.root, link_tuples, append)
179 def merge(self, in_rspec):
181 Merge contents for specified rspec with current rspec
183 from sfa.rspecs.rspec import RSpec
184 # just copy over all the child elements under the root element
185 if isinstance(in_rspec, basestring):
186 in_rspec = RSpec(in_rspec)
188 nodes = in_rspec.version.get_nodes()
189 # protogeni rspecs need to advertise the availabel sliver types
191 if not node.has_key('sliver') or not node['sliver']:
192 node['sliver'] = {'name': 'plab-vserver'}
194 self.add_nodes(nodes)
195 self.add_links(in_rspec.version.get_links())
198 #rspec = RSpec(in_rspec)
199 #for child in rspec.xml.iterchildren():
200 # self.xml.root.append(child)
205 # remove unncecessary elements, attributes
206 if self.type in ['request', 'manifest']:
207 # remove 'available' element from remaining node elements
208 self.xml.remove_element('//default:available | //available')
213 schema = 'http://www.protogeni.net/resources/rspec/2/ad.xsd'
214 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"/>'
216 class PGv2Request(PGv2):
218 content_type = 'request'
219 schema = 'http://www.protogeni.net/resources/rspec/2/request.xsd'
220 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"/>'
222 class PGv2Manifest(PGv2):
224 content_type = 'manifest'
225 schema = 'http://www.protogeni.net/resources/rspec/2/manifest.xsd'
226 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"/>'
231 if __name__ == '__main__':
232 from sfa.rspecs.rspec import RSpec
233 from sfa.rspecs.rspec_elements import *
234 r = RSpec('/tmp/pg.rspec')
235 r.load_rspec_elements(PGv2.elements)
236 r.namespaces = PGv2.namespaces
237 print r.get(RSpecElements.NODE)