1 from copy import deepcopy
2 from StringIO import StringIO
3 from sfa.util.xrn import urn_to_sliver_id
4 from sfa.util.plxrn import hostname_to_urn, xrn_to_hostname
5 from sfa.rspecs.rspec_version 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_network(self):
25 nodes = self.xml.xpath('//default:node[@component_manager_id][1]', namespaces=self.namespaces)
27 network = nodes[0].get('component_manager_id')
30 def get_networks(self):
31 networks = self.xml.xpath('//default:node[@component_manager_id]/@component_manager_id', namespaces=self.namespaces)
37 def get_nodes(self, filter=None):
38 return PGv2Node.get_nodes(self.xml, filter)
40 def get_nodes_with_slivers(self):
41 return PGv2Node.get_nodes_with_slivers(self.xml)
43 def add_nodes(self, nodes, check_for_dupes=False):
44 return PGv2Node.add_nodes(self.xml, nodes)
46 def merge_node(self, source_node_tag):
48 self.xml.root.append(deepcopy(source_node_tag))
50 def get_nodes_with_slivers(self, network=None):
52 nodes = self.xml.xpath('//default:node[@component_manager_id="%s"][sliver_type]/@component_id' % network, namespaces=self.namespaces)
54 nodes = self.xml.xpath('//default:node[default:sliver_type]/@component_id', namespaces=self.namespaces)
55 nodes = [xrn_to_hostname(node) for node in nodes]
60 def get_sliver_attributes(self, hostname, network=None):
61 node = self.get_node_element(hostname, network)
62 sliver = node.xpath('./default:sliver_type', namespaces=self.namespaces)
63 if sliver is not None and isinstance(sliver, list):
65 return self.attributes_list(sliver)
67 def get_slice_attributes(self, network=None):
69 nodes_with_slivers = self.get_nodes_with_slivers(network)
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 = {'name': requested_sliver_type,
124 'pl_tags': attributes}
126 # remove existing sliver_type tags
127 for sliver_type in node_elem.get('slivers', []):
128 node_elem.remove(sliver_type)
131 node.set('client_id', hostname)
134 slice_id = sliver_info.get('slice_id', -1)
135 node_id = sliver_info.get('node_id', -1)
136 sliver_id = urn_to_sliver_id(sliver_urn, slice_id, node_id)
137 node_elem.set('sliver_id', sliver_id)
139 # add the sliver type elemnt
140 PGv1Sliver.add_slivers(node_elem, sliver)
142 # remove all nodes without slivers
144 for node_elem in self.get_nodes():
145 if not node['client_id']:
146 parent = node.getparent()
147 parent.remove(node_elem)
149 def remove_slivers(self, slivers, network=None, no_dupes=False):
150 PGv2Node.remove_slivers(self.xml, slivers)
154 def get_links(self, network=None):
155 return PGv2Link.get_links(self.xml)
157 def get_link_requests(self):
158 return PGv2Link.get_link_requests(self.xml)
160 def add_links(self, links):
161 PGv2Link.add_links(self.xml.root, links)
163 def add_link_requests(self, link_tuples, append=False):
164 PGv2Link.add_link_requests(self.xml.root, link_tuples, append)
168 def merge(self, in_rspec):
170 Merge contents for specified rspec with current rspec
172 from sfa.rspecs.rspec import RSpec
173 # just copy over all the child elements under the root element
174 if isinstance(in_rspec, RSpec):
175 in_rspec = in_rspec.toxml()
177 rspec = RSpec(in_rspec)
178 for child in rspec.root.iterchildren():
179 self.xml.root.append(child)
182 # remove unncecessary elements, attributes
183 if self.type in ['request', 'manifest']:
184 # remove 'available' element from remaining node elements
185 self.xml.remove_element('//default:available | //available')
190 schema = 'http://www.protogeni.net/resources/rspec/2/ad.xsd'
191 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"/>'
193 class PGv2Request(PGv2):
195 content_type = 'request'
196 schema = 'http://www.protogeni.net/resources/rspec/2/request.xsd'
197 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"/>'
199 class PGv2Manifest(PGv2):
201 content_type = 'manifest'
202 schema = 'http://www.protogeni.net/resources/rspec/2/manifest.xsd'
203 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"/>'
208 if __name__ == '__main__':
209 from sfa.rspecs.rspec import RSpec
210 from sfa.rspecs.rspec_elements import *
211 r = RSpec('/tmp/pg.rspec')
212 r.load_rspec_elements(PGv2.elements)
213 r.namespaces = PGv2.namespaces
214 print r.get(RSpecElements.NODE)