sfa/rspecs/versions/slabv1.py

   1 from copy import deepcopy
   2
   3
   4 from sfa.rspecs.version import RSpecVersion
   5 import sys
   6 from sfa.rspecs.elements.versions.slabv1Lease import Slabv1Lease
   7 from sfa.rspecs.elements.versions.slabv1Node import Slabv1Node
   8 from sfa.rspecs.elements.versions.slabv1Sliver import Slabv1Sliver
   9 from sfa.rspecs.elements.versions.slabv1Timeslot import Slabv1Timeslot
  10
  11 from sfa.rspecs.elements.versions.sfav1Lease import SFAv1Lease
  12
  13 from sfa.util.sfalogging import logger
  14
  15 class Slabv1(RSpecVersion):
  16     #enabled = True
  17     type = 'Slab'
  18     content_type = 'ad'
  19     version = '1'
  20     #template = '<RSpec type="%s"></RSpec>' % type
  21
  22     schema = 'http://senslab.info/resources/rspec/1/ad.xsd'
  23     namespace = 'http://www.geni.net/resources/rspec/3'
  24     extensions = {
  25         'flack': "http://www.protogeni.net/resources/rspec/ext/flack/1",
  26         'planetlab': "http://www.planet-lab.org/resources/sfa/ext/planetlab/1",
  27     }
  28     namespaces = dict(extensions.items() + [('default', namespace)])
  29     elements = []
  30
  31     # Network
  32     def get_networks(self):
  33         #WARNING Added //default:network to the xpath
  34         #otherwise network element not detected 16/07/12 SA
  35
  36         network_elems = self.xml.xpath('//network | //default:network')
  37         networks = [network_elem.get_instance(fields=['name', 'slice']) for \
  38                     network_elem in network_elems]
  39         return networks
  40
  41
  42     def add_network(self, network):
  43         network_tags = self.xml.xpath('//network[@name="%s"]' % network)
  44         if not network_tags:
  45             network_tag = self.xml.add_element('network', name=network)
  46         else:
  47             network_tag = network_tags[0]
  48         return network_tag
  49
  50
  51     # Nodes
  52
  53     def get_nodes(self, filter=None):
  54         return Slabv1Node.get_nodes(self.xml, filter)
  55
  56     def get_nodes_with_slivers(self):
  57         return Slabv1Node.get_nodes_with_slivers(self.xml)
  58
  59     def get_slice_timeslot(self ):
  60         return Slabv1Timeslot.get_slice_timeslot(self.xml)
  61
  62     def add_connection_information(self, ldap_username):
  63         return Slabv1Node.add_connection_information(self.xml,ldap_username)
  64
  65     def add_nodes(self, nodes, check_for_dupes=False):
  66         return Slabv1Node.add_nodes(self.xml,nodes )
  67
  68     def merge_node(self, source_node_tag, network, no_dupes = False):
  69         logger.debug("SLABV1 merge_node")
  70         #if no_dupes and self.get_node_element(node['hostname']):
  71             ## node already exists
  72             #return
  73         network_tag = self.add_network(network)
  74         network_tag.append(deepcopy(source_node_tag))
  75
  76     # Slivers
  77
  78     def get_sliver_attributes(self, hostname, node, network=None):
  79         print>>sys.stderr, "\r\n \r\n \r\n \t\t SLABV1.PY  get_sliver_attributes hostname %s " %(hostname)
  80         nodes = self.get_nodes({'component_id': '*%s*' %hostname})
  81         attribs = []
  82         print>>sys.stderr, "\r\n \r\n \r\n \t\t SLABV1.PY  get_sliver_attributes-----------------nodes %s  " %(nodes)
  83         if nodes is not None and isinstance(nodes, list) and len(nodes) > 0:
  84             node = nodes[0]
  85         #if node :
  86             #sliver = node.xpath('./default:sliver | ./sliver')
  87             #sliver = node.xpath('./default:sliver', namespaces=self.namespaces)
  88             sliver = node['slivers']
  89
  90             if sliver is not None and isinstance(sliver, list) and len(sliver) > 0:
  91                 sliver = sliver[0]
  92                 attribs = sliver
  93                 #attribs = self.attributes_list(sliver)
  94                 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)
  95         return attribs
  96
  97     def get_slice_attributes(self, network=None):
  98
  99         slice_attributes = []
 100         slot = self.get_slice_timeslot()
 101         nodes_with_slivers = self.get_nodes_with_slivers()
 102         slice_attributes.append({'timeslot':slot})
 103         #slice_attributes.append({'name': 'timeslot', 'value' : slot})
 104         print>>sys.stderr, "\r\n \r\n \r\n \t\t SLABV1.PY get_slice_attributes -----------------nodes_with_slivers %s "%(nodes_with_slivers)
 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         print>>sys.stderr, "\r\n \r\n \r\n \t\t SLABV1.PY get_slice_attributes ----------------- slice_attributes %s "%(slice_attributes)
 128         return slice_attributes
 129
 130     def attributes_list(self, elem):
 131         opts = []
 132         if elem is not None:
 133             for e in elem:
 134                 opts.append((e.tag, str(e.text).strip(), e.attrib))
 135         return opts
 136
 137     def get_default_sliver_attributes(self, network=None):
 138         return []
 139
 140     def add_default_sliver_attribute(self, name, value, network=None):
 141         pass
 142
 143     def add_slivers(self, hostnames, attributes=[], sliver_urn=None, append=False):
 144         # all nodes hould already be present in the rspec. Remove all
 145         # nodes that done have slivers
 146         print>>sys.stderr, "\r\n \r\n \r\n \t\t\t SLABv1.PY add_slivers  ----->get_node "
 147         for hostname in hostnames:
 148             node_elems = self.get_nodes({'component_id': '*%s*' % hostname})
 149             if not node_elems:
 150                 continue
 151             node_elem = node_elems[0]
 152
 153             # determine sliver types for this node
 154             #TODO : add_slivers valid type of sliver needs to be changed 13/07/12 SA
 155             valid_sliver_types = ['slab-node', 'emulab-openvz', 'raw-pc', 'plab-vserver', 'plab-vnode']
 156             #valid_sliver_types = ['emulab-openvz', 'raw-pc', 'plab-vserver', 'plab-vnode']
 157             requested_sliver_type = None
 158             for sliver_type in node_elem.get('slivers', []):
 159                 if sliver_type.get('type') in valid_sliver_types:
 160                     requested_sliver_type = sliver_type['type']
 161
 162             if not requested_sliver_type:
 163                 continue
 164             sliver = {'type': requested_sliver_type,
 165                      'pl_tags': attributes}
 166             print>>sys.stderr, "\r\n \r\n \r\n \t\t\t SLABv1.PY add_slivers  node_elem %s sliver_type %s \r\n \r\n " %(node_elem, sliver_type)
 167             # remove available element
 168             for available_elem in node_elem.xpath('./default:available | ./available'):
 169                 node_elem.remove(available_elem)
 170
 171             # remove interface elements
 172             for interface_elem in node_elem.xpath('./default:interface | ./interface'):
 173                 node_elem.remove(interface_elem)
 174
 175             # remove existing sliver_type elements
 176             for sliver_type in node_elem.get('slivers', []):
 177                 node_elem.element.remove(sliver_type.element)
 178
 179             # set the client id
 180             node_elem.element.set('client_id', hostname)
 181             if sliver_urn:
 182                 pass
 183                 # TODO
 184                 # set the sliver id
 185                 #slice_id = sliver_info.get('slice_id', -1)
 186                 #node_id = sliver_info.get('node_id', -1)
 187                 #sliver_id = urn_to_sliver_id(sliver_urn, slice_id, node_id)
 188                 #node_elem.set('sliver_id', sliver_id)
 189
 190             # add the sliver type elemnt
 191             Slabv1Sliver.add_slivers(node_elem.element, sliver)
 192             #Slabv1SliverType.add_slivers(node_elem.element, sliver)
 193
 194         # remove all nodes without slivers
 195         if not append:
 196             for node_elem in self.get_nodes():
 197                 if not node_elem['client_id']:
 198                     parent = node_elem.element.getparent()
 199                     parent.remove(node_elem.element)
 200
 201     def remove_slivers(self, slivers, network=None, no_dupes=False):
 202         Slabv1Node.remove_slivers(self.xml, slivers)
 203
 204
 205     # Utility
 206
 207     def merge(self, in_rspec):
 208         """
 209         Merge contents for specified rspec with current rspec
 210         """
 211
 212         if not in_rspec:
 213             return
 214
 215         from sfa.rspecs.rspec import RSpec
 216
 217         if isinstance(in_rspec, RSpec):
 218             rspec = in_rspec
 219         else:
 220             rspec = RSpec(in_rspec)
 221         if rspec.version.type.lower() == 'protogeni':
 222             from sfa.rspecs.rspec_converter import RSpecConverter
 223             in_rspec = RSpecConverter.to_sfa_rspec(rspec.toxml())
 224             rspec = RSpec(in_rspec)
 225         # just copy over all networks
 226         #Attention special get_networks using //default:network xpath
 227         current_networks = self.get_networks()
 228         networks = rspec.version.get_networks()
 229         for network in networks:
 230             current_network = network.get('name')
 231             if current_network and current_network not in current_networks:
 232                 self.xml.append(network.element)
 233                 current_networks.append(current_network)
 234
 235
 236
 237
 238
 239     # Leases
 240
 241     def get_leases(self, lease_filter=None):
 242         return SFAv1Lease.get_leases(self.xml, lease_filter)
 243         #return Slabv1Lease.get_leases(self.xml, lease_filter)
 244
 245     def add_leases(self, leases, network = None, no_dupes=False):
 246         SFAv1Lease.add_leases(self.xml, leases)
 247         #Slabv1Lease.add_leases(self.xml, leases)
 248
 249     def cleanup(self):
 250         # remove unncecessary elements, attributes
 251         if self.type in ['request', 'manifest']:
 252             # remove 'available' element from remaining node elements
 253             self.xml.remove_element('//default:available | //available')
 254
 255
 256 class Slabv1Ad(Slabv1):
 257     enabled = True
 258     content_type = 'ad'
 259     schema = 'http://senslab.info/resources/rspec/1/ad.xsd'
 260     #http://www.geni.net/resources/rspec/3/ad.xsd'
 261     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"/>'
 262
 263 class Slabv1Request(Slabv1):
 264     enabled = True
 265     content_type = 'request'
 266     schema = 'http://senslab.info/resources/rspec/1/request.xsd'
 267     #http://www.geni.net/resources/rspec/3/request.xsd
 268     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"/>'
 269
 270 class Slabv1Manifest(Slabv1):
 271     enabled = True
 272     content_type = 'manifest'
 273     schema = 'http://senslab.info/resources/rspec/1/manifest.xsd'
 274     #http://www.geni.net/resources/rspec/3/manifest.xsd
 275     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"/>'
 276
 277
 278 if __name__ == '__main__':
 279     from sfa.rspecs.rspec import RSpec
 280     from sfa.rspecs.rspec_elements import *
 281     r = RSpec('/tmp/slab.rspec')
 282     r.load_rspec_elements(Slabv1.elements)
 283     r.namespaces = Slabv1.namespaces
 284     print r.get(RSpecElements.NODE)