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
10 class PGv2(RSpecVersion):
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, rspec_content_type=None):
49 return PGv2Node.add_nodes(self.xml, nodes, rspec_content_type)
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=None, sliver_urn=None, append=False):
107 if attributes is None: attributes=[]
108 # all nodes hould already be present in the rspec. Remove all
109 # nodes that done have slivers
110 for hostname in hostnames:
111 node_elems = self.get_nodes({'component_id': '*%s*' % hostname})
114 node_elem = node_elems[0]
116 # determine sliver types for this node
117 valid_sliver_types = ['emulab-openvz', 'raw-pc', 'plab-vserver', 'plab-vnode']
118 requested_sliver_type = None
119 for sliver_type in node_elem.get('slivers', []):
120 if sliver_type.get('type') in valid_sliver_types:
121 requested_sliver_type = sliver_type['type']
123 if not requested_sliver_type:
125 sliver = {'type': requested_sliver_type,
126 'pl_tags': attributes}
128 # remove available element
129 for available_elem in node_elem.xpath('./default:available | ./available'):
130 node_elem.remove(available_elem)
132 # remove interface elements
133 for interface_elem in node_elem.xpath('./default:interface | ./interface'):
134 node_elem.remove(interface_elem)
136 # remove existing sliver_type elements
137 for sliver_type in node_elem.get('slivers', []):
138 node_elem.element.remove(sliver_type.element)
141 node_elem.element.set('client_id', hostname)
146 #slice_id = sliver_info.get('slice_id', -1)
147 #node_id = sliver_info.get('node_id', -1)
148 #sliver_id = Xrn(xrn=sliver_urn, type='slice', id=str(node_id)).get_urn()
149 #node_elem.set('sliver_id', sliver_id)
151 # add the sliver type elemnt
152 PGv2SliverType.add_slivers(node_elem.element, sliver)
154 # remove all nodes without slivers
156 for node_elem in self.get_nodes():
157 if not node_elem['client_id']:
158 parent = node_elem.element.getparent()
159 parent.remove(node_elem.element)
161 def remove_slivers(self, slivers, network=None, no_dupes=False):
162 PGv2Node.remove_slivers(self.xml, slivers)
166 def get_links(self, network=None):
167 return PGv2Link.get_links(self.xml)
169 def get_link_requests(self):
170 return PGv2Link.get_link_requests(self.xml)
172 def add_links(self, links):
173 PGv2Link.add_links(self.xml.root, links)
175 def add_link_requests(self, link_tuples, append=False):
176 PGv2Link.add_link_requests(self.xml.root, link_tuples, append)
180 def get_leases(self, filter=None):
181 return PGv2Lease.get_leases(self.xml, filter)
183 def add_leases(self, leases, network = None, no_dupes=False):
184 PGv2Lease.add_leases(self.xml, leases)
188 def get_channels(self, filter=None):
191 def add_channels(self, channels, network = None, no_dupes=False):
196 def merge(self, in_rspec):
198 Merge contents for specified rspec with current rspec
200 from sfa.rspecs.rspec import RSpec
201 # just copy over all the child elements under the root element
202 if isinstance(in_rspec, basestring):
203 in_rspec = RSpec(in_rspec)
205 nodes = in_rspec.version.get_nodes()
206 # protogeni rspecs need to advertise the availabel sliver types
209 if not node['component_name']:
210 # this node element is part of a lease
212 if not node.has_key('sliver') or not node['sliver']:
213 node['sliver'] = {'name': 'plab-vserver'}
214 main_nodes.append(node)
215 self.add_nodes(main_nodes)
216 self.add_links(in_rspec.version.get_links())
219 leases = in_rspec.version.get_leases()
220 self.add_leases(leases)
222 #rspec = RSpec(in_rspec)
223 #for child in rspec.xml.iterchildren():
224 # self.xml.root.append(child)
229 # remove unncecessary elements, attributes
230 if self.type in ['request', 'manifest']:
231 # remove 'available' element from remaining node elements
232 self.xml.remove_element('//default:available | //available')
237 schema = 'http://www.protogeni.net/resources/rspec/2/ad.xsd'
238 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"/>'
240 class PGv2Request(PGv2):
242 content_type = 'request'
243 schema = 'http://www.protogeni.net/resources/rspec/2/request.xsd'
244 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"/>'
246 class PGv2Manifest(PGv2):
248 content_type = 'manifest'
249 schema = 'http://www.protogeni.net/resources/rspec/2/manifest.xsd'
250 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"/>'
255 if __name__ == '__main__':
256 from sfa.rspecs.rspec import RSpec
257 from sfa.rspecs.rspec_elements import *
258 r = RSpec('/tmp/pg.rspec')
259 r.load_rspec_elements(PGv2.elements)
260 r.namespaces = PGv2.namespaces
261 print r.get(RSpecElements.NODE)