sfa/rspecs/versions/iotlabv1.py

   1 from copy import deepcopy
   2
   3
   4 from sfa.rspecs.version import RSpecVersion
   5 import sys
   6 # from sfa.rspecs.elements.versions.iotlabv1Lease import Iotlabv1Lease
   7 from sfa.rspecs.elements.versions.iotlabv1Node import Iotlabv1Node
   8 from sfa.rspecs.elements.versions.iotlabv1Sliver import Iotlabv1Sliver
   9
  10
  11 from sfa.rspecs.elements.versions.sfav1Lease import SFAv1Lease
  12
  13 from sfa.util.sfalogging import logger
  14
  15
  16 class Iotlabv1(RSpecVersion):
  17     """
  18     Defines Iotlab style RSpec and associated methods to parse and create a
  19     valid Iotlab XML Rspec.
  20     """
  21     #enabled = True
  22     type = 'Slab'
  23     content_type = 'ad'
  24     version = '1'
  25     #template = '<RSpec type="%s"></RSpec>' % type
  26
  27     schema = 'http://senslab.info/resources/rspec/1/ad.xsd'
  28     namespace = 'http://www.geni.net/resources/rspec/3'
  29     extensions = {
  30         'flack': "http://www.protogeni.net/resources/rspec/ext/flack/1",
  31         'planetlab': "http://www.planet-lab.org/resources/sfa/ext/planetlab/1",
  32     }
  33     namespaces = dict(extensions.items() + [('default', namespace)])
  34     elements = []
  35
  36     # Network
  37     def get_networks(self):
  38         #WARNING Added //default:network to the xpath
  39         #otherwise network element not detected 16/07/12 SA
  40
  41         network_elems = self.xml.xpath('//network | //default:network')
  42         networks = [network_elem.get_instance(fields=['name', 'slice']) for \
  43                     network_elem in network_elems]
  44         return networks
  45
  46     def add_network(self, network):
  47         network_tags = self.xml.xpath('//network[@name="%s"]' % network)
  48         if not network_tags:
  49             network_tag = self.xml.add_element('network', name=network)
  50         else:
  51             network_tag = network_tags[0]
  52         return network_tag
  53
  54     # Nodes
  55     def get_nodes(self, filter=None):
  56         return Iotlabv1Node.get_nodes(self.xml, filter)
  57
  58     def get_nodes_with_slivers(self):
  59         return Iotlabv1Node.get_nodes_with_slivers(self.xml)
  60
  61     def get_slice_timeslot(self ):
  62         return Iotlabv1Timeslot.get_slice_timeslot(self.xml)
  63
  64     def add_connection_information(self, ldap_username, sites_set):
  65         return Iotlabv1Node.add_connection_information(self.xml,ldap_username, sites_set)
  66
  67     def add_nodes(self, nodes, check_for_dupes=False):
  68         return Iotlabv1Node.add_nodes(self.xml,nodes )
  69
  70     def merge_node(self, source_node_tag, network, no_dupes = False):
  71         logger.debug("SLABV1 merge_node")
  72         #if no_dupes and self.get_node_element(node['hostname']):
  73             ## node already exists
  74             #return
  75         network_tag = self.add_network(network)
  76         network_tag.append(deepcopy(source_node_tag))
  77
  78     # Slivers
  79
  80     def get_sliver_attributes(self, hostname, node, network=None):
  81         print>>sys.stderr, "\r\n \r\n \r\n \t\t SLABV1.PY  get_sliver_attributes hostname %s " %(hostname)
  82         nodes = self.get_nodes({'component_id': '*%s*' %hostname})
  83         attribs = []
  84         print>>sys.stderr, "\r\n \r\n \r\n \t\t SLABV1.PY  get_sliver_attributes-----------------nodes %s  " %(nodes)
  85         if nodes is not None and isinstance(nodes, list) and len(nodes) > 0:
  86             node = nodes[0]
  87         #if node :
  88             #sliver = node.xpath('./default:sliver | ./sliver')
  89             #sliver = node.xpath('./default:sliver', namespaces=self.namespaces)
  90             sliver = node['slivers']
  91
  92             if sliver is not None and isinstance(sliver, list) and len(sliver) > 0:
  93                 sliver = sliver[0]
  94                 attribs = sliver
  95                 #attribs = self.attributes_list(sliver)
  96                 print>>sys.stderr, "\r\n \r\n \r\n \t\t SLABV1.PY  get_sliver_attributes----------NN------- sliver %s self.namespaces %s attribs %s " %(sliver, self.namespaces,attribs)
  97         return attribs
  98
  99     def get_slice_attributes(self, network=None):
 100
 101         slice_attributes = []
 102
 103         nodes_with_slivers = self.get_nodes_with_slivers()
 104
 105         # TODO: default sliver attributes in the PG rspec?
 106         default_ns_prefix = self.namespaces['default']
 107         for node in nodes_with_slivers:
 108             sliver_attributes = self.get_sliver_attributes(node['component_id'],node, network)
 109             for sliver_attribute in sliver_attributes:
 110                 name = str(sliver_attribute[0])
 111                 text = str(sliver_attribute[1])
 112                 attribs = sliver_attribute[2]
 113                 # we currently only suppor the <initscript> and <flack> attributes
 114                 #if  'info' in name:
 115                     #attribute = {'name': 'flack_info', 'value': str(attribs), 'node_id': node}
 116                     #slice_attributes.append(attribute)
 117                 #elif 'initscript' in name:
 118                 if 'initscript' in name:
 119                     if attribs is not None and 'name' in attribs:
 120                         value = attribs['name']
 121                     else:
 122                         value = text
 123                     attribute = {'name': 'initscript', 'value': value, 'node_id': node}
 124                     slice_attributes.append(attribute)
 125
 126
 127         return slice_attributes
 128
 129     def attributes_list(self, elem):
 130         opts = []
 131         if elem is not None:
 132             for e in elem:
 133                 opts.append((e.tag, str(e.text).strip(), e.attrib))
 134         return opts
 135
 136     def get_default_sliver_attributes(self, network=None):
 137         return []
 138
 139     def add_default_sliver_attribute(self, name, value, network=None):
 140         pass
 141
 142     def add_slivers(self, hostnames, attributes=[], sliver_urn=None, append=False):
 143         # all nodes hould already be present in the rspec. Remove all
 144         # nodes that done have slivers
 145         print>>sys.stderr, "\r\n \r\n \r\n \t\t\t Iotlabv1.PY add_slivers  ----->get_node "
 146         for hostname in hostnames:
 147             node_elems = self.get_nodes({'component_id': '*%s*' % hostname})
 148             if not node_elems:
 149                 continue
 150             node_elem = node_elems[0]
 151
 152             # determine sliver types for this node
 153             #TODO : add_slivers valid type of sliver needs to be changed 13/07/12 SA
 154             valid_sliver_types = ['iotlab-node', 'emulab-openvz', 'raw-pc', 'plab-vserver', 'plab-vnode']
 155             #valid_sliver_types = ['emulab-openvz', 'raw-pc', 'plab-vserver', 'plab-vnode']
 156             requested_sliver_type = None
 157             for sliver_type in node_elem.get('slivers', []):
 158                 if sliver_type.get('type') in valid_sliver_types:
 159                     requested_sliver_type = sliver_type['type']
 160
 161             if not requested_sliver_type:
 162                 continue
 163             sliver = {'type': requested_sliver_type,
 164                      'pl_tags': attributes}
 165             print>>sys.stderr, "\r\n \r\n \r\n \t\t\t Iotlabv1.PY add_slivers  node_elem %s sliver_type %s \r\n \r\n " %(node_elem, sliver_type)
 166             # remove available element
 167             for available_elem in node_elem.xpath('./default:available | ./available'):
 168                 node_elem.remove(available_elem)
 169
 170             # remove interface elements
 171             for interface_elem in node_elem.xpath('./default:interface | ./interface'):
 172                 node_elem.remove(interface_elem)
 173
 174             # remove existing sliver_type elements
 175             for sliver_type in node_elem.get('slivers', []):
 176                 node_elem.element.remove(sliver_type.element)
 177
 178             # set the client id
 179             node_elem.element.set('client_id', hostname)
 180             if sliver_urn:
 181                 pass
 182                 # TODO
 183                 # set the sliver id
 184                 #slice_id = sliver_info.get('slice_id', -1)
 185                 #node_id = sliver_info.get('node_id', -1)
 186                 #sliver_id = urn_to_sliver_id(sliver_urn, slice_id, node_id)
 187                 #node_elem.set('sliver_id', sliver_id)
 188
 189             # add the sliver type elemnt
 190             Iotlabv1Sliver.add_slivers(node_elem.element, sliver)
 191             #Iotlabv1SliverType.add_slivers(node_elem.element, sliver)
 192
 193         # remove all nodes without slivers
 194         if not append:
 195             for node_elem in self.get_nodes():
 196                 if not node_elem['client_id']:
 197                     parent = node_elem.element.getparent()
 198                     parent.remove(node_elem.element)
 199
 200     def remove_slivers(self, slivers, network=None, no_dupes=False):
 201         Iotlabv1Node.remove_slivers(self.xml, slivers)
 202
 203
 204     # Utility
 205
 206     def merge(self, in_rspec):
 207         """
 208         Merge contents for specified rspec with current rspec
 209         """
 210
 211         if not in_rspec:
 212             return
 213
 214         from sfa.rspecs.rspec import RSpec
 215
 216         if isinstance(in_rspec, RSpec):
 217             rspec = in_rspec
 218         else:
 219             rspec = RSpec(in_rspec)
 220         if rspec.version.type.lower() == 'protogeni':
 221             from sfa.rspecs.rspec_converter import RSpecConverter
 222             in_rspec = RSpecConverter.to_sfa_rspec(rspec.toxml())
 223             rspec = RSpec(in_rspec)
 224         # just copy over all networks
 225         #Attention special get_networks using //default:network xpath
 226         current_networks = self.get_networks()
 227         networks = rspec.version.get_networks()
 228         for network in networks:
 229             current_network = network.get('name')
 230             if current_network and current_network not in current_networks:
 231                 self.xml.append(network.element)
 232                 current_networks.append(current_network)
 233
 234
 235
 236
 237
 238     # Leases
 239
 240     def get_leases(self, lease_filter=None):
 241         return SFAv1Lease.get_leases(self.xml, lease_filter)
 242         #return Iotlabv1Lease.get_leases(self.xml, lease_filter)
 243
 244     def add_leases(self, leases, network = None, no_dupes=False):
 245         SFAv1Lease.add_leases(self.xml, leases)
 246         #Iotlabv1Lease.add_leases(self.xml, leases)
 247
 248     def cleanup(self):
 249         # remove unncecessary elements, attributes
 250         if self.type in ['request', 'manifest']:
 251             # remove 'available' element from remaining node elements
 252             self.xml.remove_element('//default:available | //available')
 253
 254
 255 class Iotlabv1Ad(Iotlabv1):
 256     enabled = True
 257     content_type = 'ad'
 258     schema = 'http://senslab.info/resources/rspec/1/ad.xsd'
 259     #http://www.geni.net/resources/rspec/3/ad.xsd'
 260     template = '<rspec type="advertisement" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://senslab.info/resources/rspec/1" xmlns:flack="http://senslab.info/resources/rspec/ext/flack/1" xmlns:planetlab="http://www.planet-lab.org/resources/sfa/ext/planetlab/1" xsi:schemaLocation="http://senslab.info/resources/rspec/1 http://senslab.info/resources/rspec/1/ad.xsd http://www.planet-lab.org/resources/sfa/ext/planetlab/1 http://www.planet-lab.org/resources/sfa/ext/planetlab/1/planetlab.xsd"/>'
 261
 262 class Iotlabv1Request(Iotlabv1):
 263     enabled = True
 264     content_type = 'request'
 265     schema = 'http://senslab.info/resources/rspec/1/request.xsd'
 266     #http://www.geni.net/resources/rspec/3/request.xsd
 267     template = '<rspec type="request" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://senslab.info/resources/rspec/1" xmlns:flack="http://senslab.info/resources/rspec/ext/flack/1" xmlns:planetlab="http://www.planet-lab.org/resources/sfa/ext/planetlab/1" xsi:schemaLocation="http://senslab.info/resources/rspec/1 http://senslab.info/resources/rspec/1/request.xsd http://www.planet-lab.org/resources/sfa/ext/planetlab/1 http://www.planet-lab.org/resources/sfa/ext/planetlab/1/planetlab.xsd"/>'
 268
 269 class Iotlabv1Manifest(Iotlabv1):
 270     enabled = True
 271     content_type = 'manifest'
 272     schema = 'http://senslab.info/resources/rspec/1/manifest.xsd'
 273     #http://www.geni.net/resources/rspec/3/manifest.xsd
 274     template = '<rspec type="manifest" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://senslab.info/resources/rspec/1" xmlns:flack="http://senslab.info/resources/rspec/ext/flack/1" xmlns:planetlab="http://www.planet-lab.org/resources/sfa/ext/planetlab/1" xsi:schemaLocation="http://senslab.info/resources/rspec/1 http://senslab.info/resources/rspec/1/manifest.xsd http://www.planet-lab.org/resources/sfa/ext/planetlab/1 http://www.planet-lab.org/resources/sfa/ext/planetlab/1/planetlab.xsd"/>'
 275
 276
 277 if __name__ == '__main__':
 278     from sfa.rspecs.rspec import RSpec
 279     from sfa.rspecs.rspec_elements import *
 280     r = RSpec('/tmp/iotlab.rspec')
 281     r.load_rspec_elements(Iotlabv1.elements)
 282     r.namespaces = Iotlabv1.namespaces
 283     print r.get(RSpecElements.NODE)