# -*- coding: utf-8 -*-
from nepi.core.attributes import Attribute, AttributesMap
-from nepi.util import proxy, validation
-from nepi.util.constants import STATUS_FINISHED
+from nepi.core.connector import ConnectorTypeBase
+from nepi.util import validation
+from nepi.util.constants import STATUS_FINISHED, TIME_NOW
from nepi.util.parser._xml import XmlExperimentParser
import sys
-
-class ConnectorType(object):
+import re
+import threading
+import ConfigParser
+import os
+import collections
+import functools
+
+ATTRIBUTE_PATTERN_BASE = re.compile(r"\{#\[(?P<label>[-a-zA-Z0-9._]*)\](?P<expr>(?P<component>\.addr\[[0-9]+\]|\.route\[[0-9]+\]|\.trace\[[0-9]+\])?.\[(?P<attribute>[-a-zA-Z0-9._]*)\])#}")
+ATTRIBUTE_PATTERN_GUID_SUB = r"{#[%(guid)s]%(expr)s#}"
+COMPONENT_PATTERN = re.compile(r"(?P<kind>[a-z]*)\[(?P<index>.*)\]")
+
+class ConnectorType(ConnectorTypeBase):
def __init__(self, testbed_id, factory_id, name, max = -1, min = 0):
- super(ConnectorType, self).__init__()
- if max == -1:
- max = sys.maxint
- elif max <= 0:
- raise RuntimeError(
- "The maximum number of connections allowed need to be more than 0")
- if min < 0:
- raise RuntimeError(
- "The minimum number of connections allowed needs to be at least 0")
- # connector_type_id -- univoquely identifies a connector type
- # across testbeds
- self._connector_type_id = (testbed_id.lower(), factory_id.lower(),
- name.lower())
- # name -- display name for the connector type
- self._name = name
- # max -- maximum amount of connections that this type support,
- # -1 for no limit
- self._max = max
- # min -- minimum amount of connections required by this type of connector
- self._min = min
+ super(ConnectorType, self).__init__(testbed_id, factory_id, name, max, min)
# from_connections -- connections where the other connector is the "From"
# to_connections -- connections where the other connector is the "To"
# keys in the dictionary correspond to the
self._from_connections = dict()
self._to_connections = dict()
- @property
- def connector_type_id(self):
- return self._connector_type_id
-
- @property
- def name(self):
- return self._name
-
- @property
- def max(self):
- return self._max
-
- @property
- def min(self):
- return self._min
+ def add_from_connection(self, testbed_id, factory_id, name, can_cross,
+ init_code, compl_code):
+ type_id = self.make_connector_type_id(testbed_id, factory_id, name)
+ self._from_connections[type_id] = (can_cross, init_code, compl_code)
- def add_from_connection(self, testbed_id, factory_id, name, can_cross, code):
- self._from_connections[(testbed_id.lower(), factory_id.lower(),
- name.lower())] = (can_cross, code)
-
- def add_to_connection(self, testbed_id, factory_id, name, can_cross, code):
- self._to_connections[(testbed_id.lower(), factory_id.lower(),
- name.lower())] = (can_cross, code)
+ def add_to_connection(self, testbed_id, factory_id, name, can_cross,
+ init_code, compl_code):
+ type_id = self.make_connector_type_id(testbed_id, factory_id, name)
+ self._to_connections[type_id] = (can_cross, init_code, compl_code)
def can_connect(self, testbed_id, factory_id, name, count,
- must_cross = False):
- connector_type_id = (testbed_id.lower(), factory_id.lower(),
- name.lower())
- if connector_type_id in self._from_connections:
- (can_cross, code) = self._from_connections[connector_type_id]
- elif connector_type_id in self._to_connections:
- (can_cross, code) = self._to_connections[connector_type_id]
+ must_cross):
+ connector_type_id = self.make_connector_type_id(testbed_id, factory_id, name)
+ for lookup_type_id in self._type_resolution_order(connector_type_id):
+ if lookup_type_id in self._from_connections:
+ (can_cross, init_code, compl_code) = self._from_connections[lookup_type_id]
+ elif lookup_type_id in self._to_connections:
+ (can_cross, init_code, compl_code) = self._to_connections[lookup_type_id]
+ else:
+ # keep trying
+ continue
+ return not must_cross or can_cross
else:
return False
- return not must_cross or can_cross
- def code_to_connect(self, testbed_id, factory_id, name):
- connector_type_id = (testbed_id.lower(), factory_id.lower(),
- name.lower())
- if not connector_type_id in self._to_connections.keys():
- return False
- (can_cross, code) = self._to_connections[connector_type_id]
- return code
+ def _connect_to_code(self, testbed_id, factory_id, name,
+ must_cross):
+ connector_type_id = self.make_connector_type_id(testbed_id, factory_id, name)
+ for lookup_type_id in self._type_resolution_order(connector_type_id):
+ if lookup_type_id in self._to_connections:
+ (can_cross, init_code, compl_code) = self._to_connections[lookup_type_id]
+ if not must_cross or can_cross:
+ return (init_code, compl_code)
+ else:
+ return (False, False)
+
+ def connect_to_init_code(self, testbed_id, factory_id, name, must_cross):
+ return self._connect_to_code(testbed_id, factory_id, name, must_cross)[0]
+
+ def connect_to_compl_code(self, testbed_id, factory_id, name, must_cross):
+ return self._connect_to_code(testbed_id, factory_id, name, must_cross)[1]
-# TODO: create_function, start_function, stop_function, status_function
-# need a definition!
class Factory(AttributesMap):
def __init__(self, factory_id, create_function, start_function,
- stop_function, status_function, allow_addresses = False,
- allow_routes = False):
+ stop_function, status_function,
+ configure_function, preconfigure_function,
+ allow_addresses = False, has_addresses = False,
+ allow_routes = False, has_routes = False):
super(Factory, self).__init__()
self._factory_id = factory_id
- self._allow_addresses = (allow_addresses == True)
- self._allow_routes = (allow_routes == True)
+ self._allow_addresses = bool(allow_addresses)
+ self._allow_routes = bool(allow_routes)
+ self._has_addresses = bool(has_addresses) or self._allow_addresses
+ self._has_routes = bool(has_routes) or self._allow_routes
self._create_function = create_function
self._start_function = start_function
self._stop_function = stop_function
self._status_function = status_function
+ self._configure_function = configure_function
+ self._preconfigure_function = preconfigure_function
self._connector_types = dict()
self._traces = list()
self._box_attributes = AttributesMap()
def allow_routes(self):
return self._allow_routes
+ @property
+ def has_addresses(self):
+ return self._has_addresses
+
+ @property
+ def has_routes(self):
+ return self._has_routes
+
@property
def box_attributes(self):
return self._box_attributes
def status_function(self):
return self._status_function
+ @property
+ def configure_function(self):
+ return self._configure_function
+
+ @property
+ def preconfigure_function(self):
+ return self._preconfigure_function
+
@property
def traces(self):
return self._traces
self._box_attributes.add_attribute(name, help, type, value, range,
allowed, flags, validation_function)
-class TestbedInstance(object):
+class TestbedController(object):
def __init__(self, testbed_id, testbed_version):
self._testbed_id = testbed_id
self._testbed_version = testbed_version
+ @property
+ def testbed_id(self):
+ return self._testbed_id
+
+ @property
+ def testbed_version(self):
+ return self._testbed_version
+
@property
def guids(self):
raise NotImplementedError
- def configure(self, name, value):
- """Set a configuartion attribute for the testbed instance"""
+ def defer_configure(self, name, value):
+ """Instructs setting a configuartion attribute for the testbed instance"""
raise NotImplementedError
- def create(self, guid, factory_id):
+ def defer_create(self, guid, factory_id):
"""Instructs creation of element """
raise NotImplementedError
- def create_set(self, guid, name, value):
+ def defer_create_set(self, guid, name, value):
"""Instructs setting an initial attribute on an element"""
raise NotImplementedError
- def factory_set(self, guid, name, value):
+ def defer_factory_set(self, guid, name, value):
"""Instructs setting an attribute on a factory"""
raise NotImplementedError
- def connect(self, guid1, connector_type_name1, guid2,
+ def defer_connect(self, guid1, connector_type_name1, guid2,
connector_type_name2):
+ """Instructs creation of a connection between the given connectors"""
raise NotImplementedError
- def cross_connect(self, guid, connector_type_name, cross_guid,
- cross_testbed_id, cross_factory_id, cross_connector_type_name):
+ def defer_cross_connect(self,
+ guid, connector_type_name,
+ cross_guid, cross_testbed_guid,
+ cross_testbed_id, cross_factory_id,
+ cross_connector_type_name):
+ """
+ Instructs creation of a connection between the given connectors
+ of different testbed instances
+ """
raise NotImplementedError
- def add_trace(self, guid, trace_id):
+ def defer_add_trace(self, guid, trace_id):
+ """Instructs the addition of a trace"""
raise NotImplementedError
- def add_adddress(self, guid, family, address, netprefix, broadcast):
+ def defer_add_address(self, guid, address, netprefix, broadcast):
+ """Instructs the addition of an address"""
raise NotImplementedError
- def add_route(self, guid, destination, netprefix, nexthop):
+ def defer_add_route(self, guid, destination, netprefix, nexthop):
+ """Instructs the addition of a route"""
raise NotImplementedError
def do_setup(self):
raise NotImplementedError
def do_create(self):
- """After do_create all instructed elements are created and
- attributes setted"""
+ """
+ After do_create all instructed elements are created and
+ attributes setted
+ """
+ raise NotImplementedError
+
+ def do_connect_init(self):
+ """
+ After do_connect_init all internal connections between testbed elements
+ are initiated
+ """
+ raise NotImplementedError
+
+ def do_connect_compl(self):
+ """
+ After do_connect all internal connections between testbed elements
+ are completed
+ """
raise NotImplementedError
- def do_connect(self):
- """After do_connect all internal connections between testbed elements
- are done"""
+ def do_preconfigure(self):
+ """
+ Done just before resolving netrefs, after connection, before cross connections,
+ useful for early stages of configuration, for setting up stuff that might be
+ required for netref resolution.
+ """
raise NotImplementedError
def do_configure(self):
"""After do_configure elements are configured"""
raise NotImplementedError
- def do_cross_connect(self):
- """After do_cross_connect all external connections between different testbed
- elements are done"""
+ def do_cross_connect_init(self, cross_data):
+ """
+ After do_cross_connect_init initiation of all external connections
+ between different testbed elements is performed
+ """
raise NotImplementedError
- def start(self, time):
+ def do_cross_connect_compl(self, cross_data):
+ """
+ After do_cross_connect_compl completion of all external connections
+ between different testbed elements is performed
+ """
raise NotImplementedError
- def stop(self, time):
+ def start(self):
+ raise NotImplementedError
+
+ def stop(self):
+ raise NotImplementedError
+
+ def set(self, guid, name, value, time = TIME_NOW):
+ raise NotImplementedError
+
+ def get(self, guid, name, time = TIME_NOW):
+ raise NotImplementedError
+
+ def get_route(self, guid, index, attribute):
+ """
+ Params:
+
+ guid: guid of box to query
+ index: number of routing entry to fetch
+ attribute: one of Destination, NextHop, NetPrefix
+ """
raise NotImplementedError
- def set(self, time, guid, name, value):
+ def get_address(self, guid, index, attribute='Address'):
+ """
+ Params:
+
+ guid: guid of box to query
+ index: number of inteface to select
+ attribute: one of Address, NetPrefix, Broadcast
+ """
raise NotImplementedError
- def get(self, time, guid, name):
+ def get_attribute_list(self, guid):
raise NotImplementedError
def action(self, time, guid, action):
def status(self, guid):
raise NotImplementedError
- def trace(self, guid, trace_id):
+ def trace(self, guid, trace_id, attribute='value'):
raise NotImplementedError
def shutdown(self):
raise NotImplementedError
class ExperimentController(object):
- def __init__(self, experiment_xml):
+ def __init__(self, experiment_xml, root_dir):
self._experiment_xml = experiment_xml
self._testbeds = dict()
- self._access_config = dict()
+ self._deployment_config = dict()
+ self._netrefs = collections.defaultdict(set)
+ self._testbed_netrefs = collections.defaultdict(set)
+ self._cross_data = dict()
+ self._root_dir = root_dir
+ self._netreffed_testbeds = set()
+ self._guids_in_testbed_cache = dict()
+
+ self.persist_experiment_xml()
@property
def experiment_xml(self):
return self._experiment_xml
- def testbed_instance(self, guid):
- return self._testbeds[guid]
-
- def set_access_configuration(self, testbed_guid, access_config):
- self._access_config[testbed_guid] = access_config
-
- def trace(self, testbed_guid, guid, trace_id):
- return self._testbeds[testbed_guid].trace(guid, trace_id)
+ def persist_experiment_xml(self):
+ xml_path = os.path.join(self._root_dir, "experiment.xml")
+ f = open(xml_path, "w")
+ f.write(self._experiment_xml)
+ f.close()
+
+ def trace(self, testbed_guid, guid, trace_id, attribute='value'):
+ return self._testbeds[testbed_guid].trace(guid, trace_id, attribute)
+
+ @staticmethod
+ def _parallel(callables):
+ excs = []
+ def wrap(callable):
+ @functools.wraps(callable)
+ def wrapped(*p, **kw):
+ try:
+ callable(*p, **kw)
+ except Exception,e:
+ import traceback
+ traceback.print_exc(file=sys.stderr)
+ excs.append(e)
+ return wrapped
+ threads = [ threading.Thread(target=wrap(callable)) for callable in callables ]
+ for thread in threads:
+ thread.start()
+ for thread in threads:
+ thread.join()
+ for exc in excs:
+ raise exc
def start(self):
- self._create_testbed_instances()
- for instance in self._testbeds.values():
- instance.do_setup()
- for instance in self._testbeds.values():
- instance.do_create()
- instance.do_connect()
- instance.do_configure()
- for instances in self._testbeds.values():
- instance.do_cross_connect()
- for instances in self._testbeds.values():
- instance.start()
+ parser = XmlExperimentParser()
+ data = parser.from_xml_to_data(self._experiment_xml)
+
+ self._init_testbed_controllers(data)
+
+ # persist testbed connection data, for potential recovery
+ self._persist_testbed_proxies()
+
+ def steps_to_configure(self, allowed_guids):
+ # perform setup in parallel for all test beds,
+ # wait for all threads to finish
+ self._parallel([testbed.do_setup
+ for guid,testbed in self._testbeds.iteritems()
+ if guid in allowed_guids])
+
+ # perform create-connect in parallel, wait
+ # (internal connections only)
+ self._parallel([testbed.do_create
+ for guid,testbed in self._testbeds.iteritems()
+ if guid in allowed_guids])
+
+ self._parallel([testbed.do_connect_init
+ for guid,testbed in self._testbeds.iteritems()
+ if guid in allowed_guids])
+
+ self._parallel([testbed.do_connect_compl
+ for guid,testbed in self._testbeds.iteritems()
+ if guid in allowed_guids])
+
+ self._parallel([testbed.do_preconfigure
+ for guid,testbed in self._testbeds.iteritems()
+ if guid in allowed_guids])
+
+ steps_to_configure(self, self._testbeds)
+
+ if self._netreffed_testbeds:
+ # initally resolve netrefs
+ self.do_netrefs(data, fail_if_undefined=False)
+
+ # rinse and repeat, for netreffed testbeds
+ netreffed_testbeds = set(self._netreffed_testbeds)
+
+ self._init_testbed_controllers(data)
+
+ # persist testbed connection data, for potential recovery
+ self._persist_testbed_proxies()
+
+ # configure dependant testbeds
+ steps_to_configure(self, netreffed_testbeds)
+
+ # final netref step, fail if anything's left unresolved
+ self.do_netrefs(data, fail_if_undefined=True)
+
+ self._program_testbed_cross_connections(data)
+
+ # perform do_configure in parallel for al testbeds
+ # (it's internal configuration for each)
+ self._parallel([testbed.do_configure
+ for testbed in self._testbeds.itervalues()])
+
+
+ #print >>sys.stderr, "DO IT"
+ #import time
+ #time.sleep(60)
+
+ # cross-connect (cannot be done in parallel)
+ for guid, testbed in self._testbeds.iteritems():
+ cross_data = self._get_cross_data(guid)
+ testbed.do_cross_connect_init(cross_data)
+ for guid, testbed in self._testbeds.iteritems():
+ cross_data = self._get_cross_data(guid)
+ testbed.do_cross_connect_compl(cross_data)
+
+ # start experiment (parallel start on all testbeds)
+ self._parallel([testbed.start
+ for testbed in self._testbeds.itervalues()])
+
+ def _persist_testbed_proxies(self):
+ TRANSIENT = ('Recover',)
+
+ # persist access configuration for all testbeds, so that
+ # recovery mode can reconnect to them if it becomes necessary
+ conf = ConfigParser.RawConfigParser()
+ for testbed_guid, testbed_config in self._deployment_config.iteritems():
+ testbed_guid = str(testbed_guid)
+ conf.add_section(testbed_guid)
+ for attr in testbed_config.attributes_list:
+ if attr not in TRANSIENT:
+ conf.set(testbed_guid, attr,
+ testbed_config.get_attribute_value(attr))
+
+ f = open(os.path.join(self._root_dir, 'deployment_config.ini'), 'w')
+ conf.write(f)
+ f.close()
+
+ def _load_testbed_proxies(self):
+ TYPEMAP = {
+ STRING : 'get',
+ INTEGER : 'getint',
+ FLOAT : 'getfloat',
+ BOOLEAN : 'getboolean',
+ }
+
+ # deferred import because proxy needs
+ # our class definitions to define proxies
+ import nepi.util.proxy as proxy
+
+ conf = ConfigParser.RawConfigParser()
+ conf.read(os.path.join(self._root_dir, 'deployment_config.ini'))
+ for testbed_guid in conf.sections():
+ testbed_config = proxy.AccessConfiguration()
+ for attr in conf.options(testbed_guid):
+ testbed_config.set_attribute_value(attr,
+ conf.get(testbed_guid, attr) )
+
+ testbed_guid = str(testbed_guid)
+ conf.add_section(testbed_guid)
+ for attr in testbed_config.attributes_list:
+ if attr not in TRANSIENT:
+ getter = getattr(conf, TYPEMAP.get(
+ testbed_config.get_attribute_type(attr),
+ 'get') )
+ testbed_config.set_attribute_value(
+ testbed_guid, attr, getter(attr))
+
+ def _unpersist_testbed_proxies(self):
+ try:
+ os.remove(os.path.join(self._root_dir, 'deployment_config.ini'))
+ except:
+ # Just print exceptions, this is just cleanup
+ import traceback
+ traceback.print_exc(file=sys.stderr)
def stop(self):
- for instance in self._testbeds.values():
- instance.stop()
+ for testbed in self._testbeds.values():
+ testbed.stop()
+ self._unpersist_testbed_proxies()
+
+ def recover(self):
+ # reload perviously persisted testbed access configurations
+ self._load_testbed_proxies()
+
+ # recreate testbed proxies by reconnecting only
+ self._init_testbed_controllers(recover = True)
+
+ # another time, for netrefs
+ self._init_testbed_controllers(recover = True)
def is_finished(self, guid):
- for instance in self._testbeds.values():
- for guid_ in instance.guids:
- if guid_ == guid:
- return instance.status(guid) == STATUS_FINISHED
+ for testbed in self._testbeds.values():
+ if guid in testbed.guids:
+ return testbed.status(guid) == STATUS_FINISHED
raise RuntimeError("No element exists with guid %d" % guid)
- def shutdown(self):
- for instance in self._testbeds.values():
- instance.shutdown()
+ def set(self, testbed_guid, guid, name, value, time = TIME_NOW):
+ testbed = self._testbeds[testbed_guid]
+ testbed.set(guid, name, value, time)
- def _create_testbed_instances(self):
- parser = XmlExperimentParser()
- data = parser.from_xml_to_data(self._experiment_xml)
+ def get(self, testbed_guid, guid, name, time = TIME_NOW):
+ testbed = self._testbeds[testbed_guid]
+ return testbed.get(guid, name, time)
+
+ def shutdown(self):
+ for testbed in self._testbeds.values():
+ testbed.shutdown()
+
+ def _guids_in_testbed(self, testbed_guid):
+ if testbed_guid not in self._testbeds:
+ return set()
+ if testbed_guid not in self._guids_in_testbed_cache:
+ self._guids_in_testbed_cache[testbed_guid] = \
+ set(self._testbeds[testbed_guid].guids)
+ return self._guids_in_testbed_cache[testbed_guid]
+
+ @staticmethod
+ def _netref_component_split(component):
+ match = COMPONENT_PATTERN.match(component)
+ if match:
+ return match.group("kind"), match.group("index")
+ else:
+ return component, None
+
+ _NETREF_COMPONENT_GETTERS = {
+ 'addr':
+ lambda testbed, guid, index, name:
+ testbed.get_address(guid, int(index), name),
+ 'route' :
+ lambda testbed, guid, index, name:
+ testbed.get_route(guid, int(index), name),
+ 'trace' :
+ lambda testbed, guid, index, name:
+ testbed.trace(guid, index, name),
+ '' :
+ lambda testbed, guid, index, name:
+ testbed.get(guid, name),
+ }
+
+ def resolve_netref_value(self, value, failval = None):
+ match = ATTRIBUTE_PATTERN_BASE.search(value)
+ if match:
+ label = match.group("label")
+ if label.startswith('GUID-'):
+ ref_guid = int(label[5:])
+ if ref_guid:
+ expr = match.group("expr")
+ component = (match.group("component") or "")[1:] # skip the dot
+ attribute = match.group("attribute")
+
+ # split compound components into component kind and index
+ # eg: 'addr[0]' -> ('addr', '0')
+ component, component_index = self._netref_component_split(component)
+
+ # find object and resolve expression
+ for ref_testbed_guid, ref_testbed in self._testbeds.iteritems():
+ if component not in self._NETREF_COMPONENT_GETTERS:
+ raise ValueError, "Malformed netref: %r - unknown component" % (expr,)
+ elif ref_guid not in self._guids_in_testbed(ref_testbed_guid):
+ pass
+ else:
+ ref_value = self._NETREF_COMPONENT_GETTERS[component](
+ ref_testbed, ref_guid, component_index, attribute)
+ if ref_value:
+ return value.replace(match.group(), ref_value)
+ # couldn't find value
+ return failval
+
+ def do_netrefs(self, data, fail_if_undefined = False):
+ # element netrefs
+ for (testbed_guid, guid), attrs in self._netrefs.items():
+ testbed = self._testbeds.get(testbed_guid)
+ if testbed is not None:
+ for name in set(attrs):
+ value = testbed.get(guid, name)
+ if isinstance(value, basestring):
+ ref_value = self.resolve_netref_value(value)
+ if ref_value is not None:
+ testbed.set(guid, name, ref_value)
+ attrs.remove(name)
+ elif fail_if_undefined:
+ raise ValueError, "Unresolvable netref in: %r=%r" % (name,value,)
+ if not attrs:
+ del self._netrefs[(testbed_guid, guid)]
+
+ # testbed netrefs
+ for testbed_guid, attrs in self._testbed_netrefs.items():
+ tb_data = dict(data.get_attribute_data(testbed_guid))
+ if data:
+ for name in set(attrs):
+ value = tb_data.get(name)
+ if isinstance(value, basestring):
+ ref_value = self.resolve_netref_value(value)
+ if ref_value is not None:
+ data.set_attribute_data(testbed_guid, name, ref_value)
+ attrs.remove(name)
+ elif fail_if_undefined:
+ raise ValueError, "Unresolvable netref in: %r" % (value,)
+ if not attrs:
+ del self._testbed_netrefs[testbed_guid]
+
+
+ def _init_testbed_controllers(self, data, recover = False):
+ blacklist_testbeds = set(self._testbeds)
element_guids = list()
- for guid in data.guids:
+ label_guids = dict()
+ data_guids = data.guids
+
+ # create testbed controllers
+ for guid in data_guids:
if data.is_testbed_data(guid):
- (testbed_id, testbed_version) = data.get_testbed_data(guid)
- access_config = None if guid not in self._access_config else\
- self._access_config[guid]
- instance = proxy.create_testbed_instance(testbed_id,
- testbed_version, access_config)
- for (name, value) in data.get_attribute_data(guid):
- instance.configure(name, value)
- self._testbeds[guid] = instance
+ if guid not in self._testbeds:
+ self._create_testbed_controller(guid, data, element_guids,
+ recover)
else:
- element_guids.append(guid)
- self._program_testbed_instances(element_guids, data)
-
- def _program_testbed_instances(self, element_guids, data):
+ (testbed_guid, factory_id) = data.get_box_data(guid)
+ if testbed_guid not in blacklist_testbeds:
+ element_guids.append(guid)
+ label = data.get_attribute_data(guid, "label")
+ if label is not None:
+ if label in label_guids:
+ raise RuntimeError, "Label %r is not unique" % (label,)
+ label_guids[label] = guid
+
+ # replace references to elements labels for its guid
+ self._resolve_labels(data, data_guids, label_guids)
+
+ # program testbed controllers
+ if not recover:
+ self._program_testbed_controllers(element_guids, data)
+
+ def _resolve_labels(self, data, data_guids, label_guids):
+ netrefs = self._netrefs
+ testbed_netrefs = self._testbed_netrefs
+ for guid in data_guids:
+ for name, value in data.get_attribute_data(guid):
+ if isinstance(value, basestring):
+ match = ATTRIBUTE_PATTERN_BASE.search(value)
+ if match:
+ label = match.group("label")
+ if not label.startswith('GUID-'):
+ ref_guid = label_guids.get(label)
+ if ref_guid is not None:
+ value = ATTRIBUTE_PATTERN_BASE.sub(
+ ATTRIBUTE_PATTERN_GUID_SUB % dict(
+ guid = 'GUID-%d' % (ref_guid,),
+ expr = match.group("expr"),
+ label = label),
+ value)
+ data.set_attribute_data(guid, name, value)
+
+ # memorize which guid-attribute pairs require
+ # postprocessing, to avoid excessive controller-testbed
+ # communication at configuration time
+ # (which could require high-latency network I/O)
+ if not data.is_testbed_data(guid):
+ (testbed_guid, factory_id) = data.get_box_data(guid)
+ netrefs[(testbed_guid, guid)].add(name)
+ else:
+ testbed_netrefs[guid].add(name)
+
+ def _create_testbed_controller(self, guid, data, element_guids, recover):
+ (testbed_id, testbed_version) = data.get_testbed_data(guid)
+ deployment_config = self._deployment_config.get(guid)
+
+ # deferred import because proxy needs
+ # our class definitions to define proxies
+ import nepi.util.proxy as proxy
+
+ if deployment_config is None:
+ # need to create one
+ deployment_config = proxy.AccessConfiguration()
+
+ for (name, value) in data.get_attribute_data(guid):
+ if value is not None and deployment_config.has_attribute(name):
+ # if any deployment config attribute has a netref, we can't
+ # create this controller yet
+ if isinstance(value, basestring) and ATTRIBUTE_PATTERN_BASE.search(value):
+ # remember to re-issue this one
+ self._netreffed_testbeds.add(guid)
+ return
+
+ # copy deployment config attribute
+ deployment_config.set_attribute_value(name, value)
+
+ # commit config
+ self._deployment_config[guid] = deployment_config
+
+ if deployment_config is not None:
+ # force recovery mode
+ deployment_config.set_attribute_value("recover",recover)
+
+ testbed = proxy.create_testbed_controller(testbed_id,
+ testbed_version, deployment_config)
+ for (name, value) in data.get_attribute_data(guid):
+ testbed.defer_configure(name, value)
+ self._testbeds[guid] = testbed
+ if guid in self._netreffed_testbeds:
+ self._netreffed_testbeds.remove(guid)
+
+ def _program_testbed_controllers(self, element_guids, data):
for guid in element_guids:
(testbed_guid, factory_id) = data.get_box_data(guid)
- instance = self._testbeds[testbed_guid]
- instance.create(guid, factory_id)
- for (name, value) in data.get_attribute_data(guid):
- instance.create_set(guid, name, value)
+ testbed = self._testbeds.get(testbed_guid)
+ if testbed:
+ testbed.defer_create(guid, factory_id)
+ for (name, value) in data.get_attribute_data(guid):
+ # Try to resolve create-time netrefs, if possible
+ if isinstance(value, basestring) and ATTRIBUTE_PATTERN_BASE.search(value):
+ try:
+ nuvalue = self.resolve_netref_value(value)
+ except:
+ # Any trouble means we're not in shape to resolve the netref yet
+ nuvalue = None
+ if nuvalue is not None:
+ # Only if we succeed we remove the netref deferral entry
+ value = nuvalue
+ data.set_attribute_data(guid, name, value)
+ if (testbed_guid, guid) in self._netrefs:
+ self._netrefs[(testbed_guid, guid)].discard(name)
+ testbed.defer_create_set(guid, name, value)
for guid in element_guids:
(testbed_guid, factory_id) = data.get_box_data(guid)
- instance = self._testbeds[testbed_guid]
- for (connector_type_name, other_guid, other_connector_type_name) \
- in data.get_connection_data(guid):
+ testbed = self._testbeds.get(testbed_guid)
+ if testbed:
+ for (connector_type_name, cross_guid, cross_connector_type_name) \
+ in data.get_connection_data(guid):
+ (testbed_guid, factory_id) = data.get_box_data(guid)
+ (cross_testbed_guid, cross_factory_id) = data.get_box_data(
+ cross_guid)
+ if testbed_guid == cross_testbed_guid:
+ testbed.defer_connect(guid, connector_type_name,
+ cross_guid, cross_connector_type_name)
+ for trace_id in data.get_trace_data(guid):
+ testbed.defer_add_trace(guid, trace_id)
+ for (autoconf, address, netprefix, broadcast) in \
+ data.get_address_data(guid):
+ if address != None:
+ testbed.defer_add_address(guid, address, netprefix,
+ broadcast)
+ for (destination, netprefix, nexthop) in data.get_route_data(guid):
+ testbed.defer_add_route(guid, destination, netprefix, nexthop)
+
+ def _program_testbed_cross_connections(self, data):
+ data_guids = data.guids
+
+ for guid in data_guids:
+ if not data.is_testbed_data(guid):
(testbed_guid, factory_id) = data.get_box_data(guid)
- (other_testbed_guid, other_factory_id) = data.get_box_data(
- other_guid)
- if testbed_guid == other_testbed_guid:
- instance.connect(guid, connector_type_name, other_guid,
- other_connector_type_name)
- else:
- instance.cross_connect(guid, connector_type_name, other_guid,
- other_testbed_id, other_factory_id, other_connector_type_name)
- for trace_id in data.get_trace_data(guid):
- instance.add_trace(guid, trace_id)
- for (autoconf, address, family, netprefix, broadcast) in \
- data.get_address_data(guid):
- if address != None:
- instance.add_adddress(guid, family, address, netprefix,
- broadcast)
- for (family, destination, netprefix, nexthop) in \
- data.get_route_data(guid):
- instance.add_route(guid, destination, netprefix, nexthop)
-
+ testbed = self._testbeds.get(testbed_guid)
+ if testbed:
+ for (connector_type_name, cross_guid, cross_connector_type_name) \
+ in data.get_connection_data(guid):
+ (testbed_guid, factory_id) = data.get_box_data(guid)
+ (cross_testbed_guid, cross_factory_id) = data.get_box_data(
+ cross_guid)
+ if testbed_guid != cross_testbed_guid:
+ cross_testbed = self._testbeds[cross_testbed_guid]
+ cross_testbed_id = cross_testbed.testbed_id
+ testbed.defer_cross_connect(guid, connector_type_name, cross_guid,
+ cross_testbed_guid, cross_testbed_id, cross_factory_id,
+ cross_connector_type_name)
+ # save cross data for later
+ self._add_crossdata(testbed_guid, guid, cross_testbed_guid,
+ cross_guid)
+
+ def _add_crossdata(self, testbed_guid, guid, cross_testbed_guid, cross_guid):
+ if testbed_guid not in self._cross_data:
+ self._cross_data[testbed_guid] = dict()
+ if cross_testbed_guid not in self._cross_data[testbed_guid]:
+ self._cross_data[testbed_guid][cross_testbed_guid] = set()
+ self._cross_data[testbed_guid][cross_testbed_guid].add(cross_guid)
+
+ def _get_cross_data(self, testbed_guid):
+ cross_data = dict()
+ if not testbed_guid in self._cross_data:
+ return cross_data
+ for cross_testbed_guid, guid_list in \
+ self._cross_data[testbed_guid].iteritems():
+ cross_data[cross_testbed_guid] = dict()
+ cross_testbed = self._testbeds[cross_testbed_guid]
+ for cross_guid in guid_list:
+ elem_cross_data = dict(
+ _guid = cross_guid,
+ _testbed_guid = cross_testbed_guid,
+ _testbed_id = cross_testbed.testbed_id,
+ _testbed_version = cross_testbed.testbed_version)
+ cross_data[cross_testbed_guid][cross_guid] = elem_cross_data
+ attributes_list = cross_testbed.get_attribute_list(cross_guid)
+ for attr_name in attributes_list:
+ attr_value = cross_testbed.get(cross_guid, attr_name)
+ elem_cross_data[attr_name] = attr_value
+ return cross_data
+
git://git.onelab.eu / nepi.git / blobdiff