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",
20 namespaces = dict(extensions.items() + [('default', namespace)])
23 def get_networks(self):
25 nodes = self.xml.xpath('//default:node[@component_manager_id] | //node[@component_manager_id]', namespaces=self.namespaces)
27 if 'component_manager_id' in node.attrib:
28 network_urn = node.get('component_manager_id')
29 if network_urn.startswith("urn:"):
30 network_hrn = Xrn(network_urn).get_hrn()
32 # some component_manager_ids are hrns instead of urns??
33 network_hrn = network_urn
34 network_names.add(network_hrn)
35 network_names = list(network_names)
36 networks = [{"name": x} for x in network_names]
41 def get_nodes(self, filter=None):
42 return PGv2Node.get_nodes(self.xml, filter)
44 def get_nodes_with_slivers(self):
45 return PGv2Node.get_nodes_with_slivers(self.xml)
47 def add_nodes(self, nodes, check_for_dupes=False):
48 return PGv2Node.add_nodes(self.xml, nodes)
50 def merge_node(self, source_node_tag):
52 self.xml.root.append(deepcopy(source_node_tag))
56 def get_sliver_attributes(self, hostname, network=None):
57 nodes = self.get_nodes({'component_id': '*%s*' %hostname})
59 if nodes is not None and isinstance(nodes, list) and len(nodes) > 0:
61 sliver = node.xpath('./default:sliver_type', namespaces=self.namespaces)
62 if sliver is not None and isinstance(sliver, list) and len(sliver) > 0:
64 #attribs = self.attributes_list(sliver)
67 def get_slice_attributes(self, network=None):
69 nodes_with_slivers = self.get_nodes_with_slivers()
70 # TODO: default sliver attributes in the PG rspec?
71 default_ns_prefix = self.namespaces['default']
72 for node in nodes_with_slivers:
73 sliver_attributes = self.get_sliver_attributes(node, network)
74 for sliver_attribute in sliver_attributes:
75 name=str(sliver_attribute[0])
76 text =str(sliver_attribute[1])
77 attribs = sliver_attribute[2]
78 # we currently only suppor the <initscript> and <flack> attributes
80 attribute = {'name': 'flack_info', 'value': str(attribs), 'node_id': node}
81 slice_attributes.append(attribute)
82 elif 'initscript' in name:
83 if attribs is not None and 'name' in attribs:
84 value = attribs['name']
87 attribute = {'name': 'initscript', 'value': value, 'node_id': node}
88 slice_attributes.append(attribute)
90 return slice_attributes
92 def attributes_list(self, elem):
96 opts.append((e.tag, str(e.text).strip(), e.attrib))
99 def get_default_sliver_attributes(self, network=None):
102 def add_default_sliver_attribute(self, name, value, network=None):
105 def add_slivers(self, hostnames, attributes=[], sliver_urn=None, append=False):
106 # all nodes hould already be present in the rspec. Remove all
107 # nodes that done have slivers
108 for hostname in hostnames:
109 node_elems = self.get_nodes({'component_id': '*%s*' % hostname})
112 node_elem = node_elems[0]
114 # determine sliver types for this node
115 valid_sliver_types = ['emulab-openvz', 'raw-pc', 'plab-vserver', 'plab-vnode']
116 requested_sliver_type = None
117 for sliver_type in node_elem.get('slivers', []):
118 if sliver_type.get('type') in valid_sliver_types:
119 requested_sliver_type = sliver_type['type']
121 if not requested_sliver_type:
123 sliver = {'type': requested_sliver_type,
124 'pl_tags': attributes}
126 # remove available element
127 for available_elem in node_elem.xpath('./default:available | ./available'):
128 node_elem.remove(available_elem)
130 # remove interface elements
131 for interface_elem in node_elem.xpath('./default:interface | ./interface'):
132 node_elem.remove(interface_elem)
134 # remove existing sliver_type elements
135 for sliver_type in node_elem.get('slivers', []):
136 node_elem.element.remove(sliver_type.element)
139 node_elem.element.set('client_id', hostname)
144 #slice_id = sliver_info.get('slice_id', -1)
145 #node_id = sliver_info.get('node_id', -1)
146 #sliver_id = urn_to_sliver_id(sliver_urn, slice_id, node_id)
147 #node_elem.set('sliver_id', sliver_id)
149 # add the sliver type elemnt
150 PGv2SliverType.add_slivers(node_elem.element, sliver)
152 # remove all nodes without slivers
154 for node_elem in self.get_nodes():
155 if not node_elem['client_id']:
156 parent = node_elem.element.getparent()
157 parent.remove(node_elem.element)
159 def remove_slivers(self, slivers, network=None, no_dupes=False):
160 PGv2Node.remove_slivers(self.xml, slivers)
164 def get_links(self, network=None):
165 return PGv2Link.get_links(self.xml)
167 def get_link_requests(self):
168 return PGv2Link.get_link_requests(self.xml)
170 def add_links(self, links):
171 PGv2Link.add_links(self.xml.root, links)
173 def add_link_requests(self, link_tuples, append=False):
174 PGv2Link.add_link_requests(self.xml.root, link_tuples, append)
178 def merge(self, in_rspec):
180 Merge contents for specified rspec with current rspec
182 from sfa.rspecs.rspec import RSpec
183 # just copy over all the child elements under the root element
184 if isinstance(in_rspec, basestring):
185 in_rspec = RSpec(in_rspec)
187 nodes = in_rspec.version.get_nodes()
188 # protogeni rspecs need to advertise the availabel sliver types
190 if not node.has_key('sliver') or not node['sliver']:
191 node['sliver'] = {'name': 'plab-vserver'}
193 self.add_nodes(nodes)
194 self.add_links(in_rspec.version.get_links())
197 #rspec = RSpec(in_rspec)
198 #for child in rspec.xml.iterchildren():
199 # self.xml.root.append(child)
204 # remove unncecessary elements, attributes
205 if self.type in ['request', 'manifest']:
206 # remove 'available' element from remaining node elements
207 self.xml.remove_element('//default:available | //available')
212 schema = 'http://www.protogeni.net/resources/rspec/2/ad.xsd'
213 template = '<rspec type="advertisement" xmlns="http://www.protogeni.net/resources/rspec/2" 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/ad.xsd http://www.planet-lab.org/resources/sfa/ext/planetlab/1 http://www.planet-lab.org/resources/sfa/ext/planetlab/1/planetlab.xsd"/>'
215 class PGv2Request(PGv2):
217 content_type = 'request'
218 schema = 'http://www.protogeni.net/resources/rspec/2/request.xsd'
219 template = '<rspec type="request" xmlns="http://www.protogeni.net/resources/rspec/2" 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/request.xsd http://www.planet-lab.org/resources/sfa/ext/planetlab/1 http://www.planet-lab.org/resources/sfa/ext/planetlab/1/planetlab.xsd"/>'
221 class PGv2Manifest(PGv2):
223 content_type = 'manifest'
224 schema = 'http://www.protogeni.net/resources/rspec/2/manifest.xsd'
225 template = '<rspec type="manifest" xmlns="http://www.protogeni.net/resources/rspec/2" 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"/>'
230 if __name__ == '__main__':
231 from sfa.rspecs.rspec import RSpec
232 from sfa.rspecs.rspec_elements import *
233 r = RSpec('/tmp/pg.rspec')
234 r.load_rspec_elements(PGv2.elements)
235 r.namespaces = PGv2.namespaces
236 print r.get(RSpecElements.NODE)