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 from sfa.util.sfalogging import logger
  11
  12 class Slabv1(RSpecVersion):
  13     #enabled = True
  14     type = 'Slab'
  15     content_type = 'ad'
  16     version = '1'
  17     #template = '<RSpec type="%s"></RSpec>' % type
  18
  19     schema = 'http://senslab.info/resources/rspec/1/ad.xsd'
  20     namespace = 'http://www.geni.net/resources/rspec/3'
  21     extensions = {
  22         'flack': "http://www.protogeni.net/resources/rspec/ext/flack/1",
  23         'planetlab': "http://www.planet-lab.org/resources/sfa/ext/planetlab/1",
  24     }
  25     namespaces = dict(extensions.items() + [('default', namespace)])
  26     elements = []
  27
  28     # Network
  29     def get_networks(self):
  30         network_elems = self.xml.xpath('//network')
  31         networks = [network_elem.get_instance(fields=['name', 'slice']) for \
  32                     network_elem in network_elems]
  33         return networks
  34
  35
  36     def add_network(self, network):
  37         network_tags = self.xml.xpath('//network[@name="%s"]' % network)
  38         if not network_tags:
  39             network_tag = self.xml.add_element('network', name=network)
  40         else:
  41             network_tag = network_tags[0]
  42         return network_tag
  43
  44
  45     # Nodes
  46
  47     def get_nodes(self, filter=None):
  48         return Slabv1Node.get_nodes(self.xml, filter)
  49
  50     def get_nodes_with_slivers(self):
  51         return Slabv1Node.get_nodes_with_slivers(self.xml)
  52
  53     def get_slice_timeslot(self ):
  54         return Slabv1Timeslot.get_slice_timeslot(self.xml)
  55
  56     def add_nodes(self, nodes, check_for_dupes=False):
  57         return Slabv1Node.add_nodes(self.xml, nodes)
  58
  59     def merge_node(self, source_node_tag, network, no_dupes = False):
  60         logger.debug("SLABV1 merge_node")
  61         #if no_dupes and self.get_node_element(node['hostname']):
  62             ## node already exists
  63             #return
  64         network_tag = self.add_network(network)
  65         network_tag.append(deepcopy(source_node_tag))
  66
  67     # Slivers
  68
  69     def get_sliver_attributes(self, hostname, node, network=None):
  70         print>>sys.stderr, "\r\n \r\n \r\n \t\t SLABV1.PY  get_sliver_attributes hostname %s " %(hostname)
  71         nodes = self.get_nodes({'component_id': '*%s*' %hostname})
  72         attribs = []
  73         print>>sys.stderr, "\r\n \r\n \r\n \t\t SLABV1.PY  get_sliver_attributes-----------------nodes %s  " %(nodes)
  74         if nodes is not None and isinstance(nodes, list) and len(nodes) > 0:
  75             node = nodes[0]
  76         #if node :
  77             #sliver = node.xpath('./default:sliver | ./sliver')
  78             #sliver = node.xpath('./default:sliver', namespaces=self.namespaces)
  79             sliver = node['slivers']
  80
  81             if sliver is not None and isinstance(sliver, list) and len(sliver) > 0:
  82                 sliver = sliver[0]
  83                 attribs = sliver
  84                 #attribs = self.attributes_list(sliver)
  85                 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)
  86         return attribs
  87
  88     def get_slice_attributes(self, network=None):
  89
  90         slice_attributes = []
  91         slot = self.get_slice_timeslot()
  92         nodes_with_slivers = self.get_nodes_with_slivers()
  93         slice_attributes.append({'timeslot':slot})
  94         #slice_attributes.append({'name': 'timeslot', 'value' : slot})
  95         print>>sys.stderr, "\r\n \r\n \r\n \t\t SLABV1.PY get_slice_attributes -----------------nodes_with_slivers %s "%(nodes_with_slivers)
  96         # TODO: default sliver attributes in the PG rspec?
  97         default_ns_prefix = self.namespaces['default']
  98         for node in nodes_with_slivers:
  99             sliver_attributes = self.get_sliver_attributes(node['component_id'],node, network)
 100             for sliver_attribute in sliver_attributes:
 101                 name=str(sliver_attribute[0])
 102                 text =str(sliver_attribute[1])
 103                 attribs = sliver_attribute[2]
 104                 # we currently only suppor the <initscript> and <flack> attributes
 105                 #if  'info' in name:
 106                     #attribute = {'name': 'flack_info', 'value': str(attribs), 'node_id': node}
 107                     #slice_attributes.append(attribute)
 108                 #elif 'initscript' in name:
 109                 if 'initscript' in name:
 110                     if attribs is not None and 'name' in attribs:
 111                         value = attribs['name']
 112                     else:
 113                         value = text
 114                     attribute = {'name': 'initscript', 'value': value, 'node_id': node}
 115                     slice_attributes.append(attribute)
 116
 117
 118         print>>sys.stderr, "\r\n \r\n \r\n \t\t SLABV1.PY get_slice_attributes ----------------- slice_attributes %s "%(slice_attributes)
 119         return slice_attributes
 120
 121     def attributes_list(self, elem):
 122         opts = []
 123         if elem is not None:
 124             for e in elem:
 125                 opts.append((e.tag, str(e.text).strip(), e.attrib))
 126         return opts
 127
 128     def get_default_sliver_attributes(self, network=None):
 129         return []
 130
 131     def add_default_sliver_attribute(self, name, value, network=None):
 132         pass
 133
 134     def add_slivers(self, hostnames, attributes=[], sliver_urn=None, append=False):
 135         # all nodes hould already be present in the rspec. Remove all
 136         # nodes that done have slivers
 137         print>>sys.stderr, "\r\n \r\n \r\n \t\t\t SLABv1.PY add_slivers  ----->get_node "
 138         for hostname in hostnames:
 139             node_elems = self.get_nodes({'component_id': '*%s*' % hostname})
 140             if not node_elems:
 141                 continue
 142             node_elem = node_elems[0]
 143
 144             # determine sliver types for this node
 145             valid_sliver_types = ['slab-node', 'emulab-openvz', 'raw-pc', 'plab-vserver', 'plab-vnode']
 146             #valid_sliver_types = ['emulab-openvz', 'raw-pc', 'plab-vserver', 'plab-vnode']
 147             requested_sliver_type = None
 148             for sliver_type in node_elem.get('slivers', []):
 149                 if sliver_type.get('type') in valid_sliver_types:
 150                     requested_sliver_type = sliver_type['type']
 151
 152             if not requested_sliver_type:
 153                 continue
 154             sliver = {'type': requested_sliver_type,
 155                      'pl_tags': attributes}
 156             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)
 157             # remove available element
 158             for available_elem in node_elem.xpath('./default:available | ./available'):
 159                 node_elem.remove(available_elem)
 160
 161             # remove interface elements
 162             for interface_elem in node_elem.xpath('./default:interface | ./interface'):
 163                 node_elem.remove(interface_elem)
 164
 165             # remove existing sliver_type elements
 166             for sliver_type in node_elem.get('slivers', []):
 167                 node_elem.element.remove(sliver_type.element)
 168
 169             # set the client id
 170             node_elem.element.set('client_id', hostname)
 171             if sliver_urn:
 172                 pass
 173                 # TODO
 174                 # set the sliver id
 175                 #slice_id = sliver_info.get('slice_id', -1)
 176                 #node_id = sliver_info.get('node_id', -1)
 177                 #sliver_id = urn_to_sliver_id(sliver_urn, slice_id, node_id)
 178                 #node_elem.set('sliver_id', sliver_id)
 179
 180             # add the sliver type elemnt
 181             Slabv1Sliver.add_slivers(node_elem.element, sliver)
 182             #Slabv1SliverType.add_slivers(node_elem.element, sliver)
 183
 184         # remove all nodes without slivers
 185         if not append:
 186             for node_elem in self.get_nodes():
 187                 if not node_elem['client_id']:
 188                     parent = node_elem.element.getparent()
 189                     parent.remove(node_elem.element)
 190
 191     def remove_slivers(self, slivers, network=None, no_dupes=False):
 192         Slabv1Node.remove_slivers(self.xml, slivers)
 193
 194
 195
 196     # Utility
 197
 198     def merge(self, in_rspec):
 199         """
 200         Merge contents for specified rspec with current rspec
 201         """
 202         from sfa.rspecs.rspec import RSpec
 203         # just copy over all the child elements under the root element
 204         if isinstance(in_rspec, basestring):
 205             in_rspec = RSpec(in_rspec)
 206
 207         nodes = in_rspec.version.get_nodes()
 208         # protogeni rspecs need to advertise the availabel sliver types
 209         for node in nodes:
 210             if not node.has_key('sliver') or not node['sliver']:
 211                 node['sliver'] = {'name': 'slab-node'}
 212
 213         self.add_nodes(nodes)
 214         #self.add_links(in_rspec.version.get_links())
 215
 216         #
 217         #rspec = RSpec(in_rspec)
 218         #for child in rspec.xml.iterchildren():
 219         #    self.xml.root.append(child)
 220
 221     # Leases
 222
 223     def get_leases(self, lease_filter=None):
 224         return Slabv1Lease.get_leases(self.xml, lease_filter)
 225
 226     def add_leases(self, leases, network = None, no_dupes=False):
 227         Slabv1Lease.add_leases(self.xml, leases)
 228
 229     def cleanup(self):
 230         # remove unncecessary elements, attributes
 231         if self.type in ['request', 'manifest']:
 232             # remove 'available' element from remaining node elements
 233             self.xml.remove_element('//default:available | //available')
 234
 235
 236 class Slabv1Ad(Slabv1):
 237     enabled = True
 238     content_type = 'ad'
 239     schema = 'http://senslab.info/resources/rspec/1/ad.xsd'
 240     #http://www.geni.net/resources/rspec/3/ad.xsd'
 241     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"/>'
 242
 243 class Slabv1Request(Slabv1):
 244     enabled = True
 245     content_type = 'request'
 246     schema = 'http://senslab.info/resources/rspec/1/request.xsd'
 247     #http://www.geni.net/resources/rspec/3/request.xsd
 248     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"/>'
 249
 250 class Slabv1Manifest(Slabv1):
 251     enabled = True
 252     content_type = 'manifest'
 253     schema = 'http://senslab.info/resources/rspec/1/manifest.xsd'
 254     #http://www.geni.net/resources/rspec/3/manifest.xsd
 255     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"/>'
 256
 257
 258 if __name__ == '__main__':
 259     from sfa.rspecs.rspec import RSpec
 260     from sfa.rspecs.rspec_elements import *
 261     r = RSpec('/tmp/slab.rspec')
 262     r.load_rspec_elements(Slabv1.elements)
 263     r.namespaces = Slabv1.namespaces
 264     print r.get(RSpecElements.NODE)