def handle_path(path, operation, configmanager, inputdata=None, autostrip=True):
"""Given a full path request, return an object.
The plugins should generally return some sort of iterator.
An exception is made for console/session, which should return
a class with connect(), read(), write(bytes), and close()
"""
pathcomponents = path.split('/')
del pathcomponents[0] # discard the value from leading /
if pathcomponents[-1] == '':
del pathcomponents[-1]
if not pathcomponents: # root collection list
return enumerate_collections(rootcollections)
elif pathcomponents[0] == 'noderange':
return handle_node_request(configmanager, inputdata, operation,
pathcomponents, autostrip)
elif pathcomponents[0] == 'nodegroups':
return handle_nodegroup_request(configmanager, inputdata,
pathcomponents,
operation)
elif pathcomponents[0] == 'nodes':
# single node request of some sort
return handle_node_request(configmanager, inputdata,
operation, pathcomponents, autostrip)
elif pathcomponents[0] == 'users':
# TODO: when non-administrator accounts exist,
# they must only be allowed to see their own user
try:
user = pathcomponents[1]
except IndexError: # it's just users/
if operation == 'create':
inputdata = msg.get_input_message(
pathcomponents, operation, inputdata)
create_user(inputdata.attribs, configmanager)
return iterate_collections(configmanager.list_users(),
forcecollection=False)
if user not in configmanager.list_users():
raise exc.NotFoundException("Invalid user %s" % user)
if operation == 'retrieve':
return show_user(user, configmanager)
elif operation == 'delete':
return delete_user(user, configmanager)
elif operation == 'update':
inputdata = msg.get_input_message(
pathcomponents, operation, inputdata)
update_user(user, inputdata.attribs, configmanager)
return show_user(user, configmanager)
elif pathcomponents[0] == 'events':
try:
element = pathcomponents[1]
except IndexError:
if operation != 'retrieve':
raise exc.InvalidArgumentException('Target is read-only')
return (msg.ChildCollection('decode'),)
if element != 'decode':
raise exc.NotFoundException()
if operation == 'update':
return alerts.decode_alert(inputdata, configmanager)
else:
raise exc.NotFoundException()
def handle_dispatch(connection, cert, dispatch, peername):
cert = crypto.dump_certificate(crypto.FILETYPE_ASN1, cert)
if not util.cert_matches(
cfm.get_collective_member(peername)['fingerprint'], cert):
connection.close()
return
if dispatch[0:2] != b'\x01\x03': # magic value to indicate msgpack
# We only support msgpack now
# The magic should preclude any pickle, as the first byte can never be
# under 0x20 or so.
connection.close()
return
dispatch = msgpack.unpackb(dispatch[2:], raw=False)
configmanager = cfm.ConfigManager(dispatch['tenant'])
nodes = dispatch['nodes']
inputdata = dispatch['inputdata']
operation = dispatch['operation']
pathcomponents = dispatch['path']
routespec = nested_lookup(noderesources, pathcomponents)
inputdata = msg.get_input_message(pathcomponents, operation, inputdata,
nodes, dispatch['isnoderange'],
configmanager)
plugroute = routespec.routeinfo
plugpath = None
nodesbyhandler = {}
passvalues = []
nodeattr = configmanager.get_node_attributes(nodes,
plugroute['pluginattrs'])
for node in nodes:
for attrname in plugroute['pluginattrs']:
if attrname in nodeattr[node]:
plugpath = nodeattr[node][attrname]['value']
elif 'default' in plugroute:
plugpath = plugroute['default']
if plugpath:
try:
hfunc = getattr(pluginmap[plugpath], operation)
except KeyError:
nodesbyhandler[BadPlugin(node, plugpath).error] = [node]
continue
if hfunc in nodesbyhandler:
nodesbyhandler[hfunc].append(node)
else:
nodesbyhandler[hfunc] = [node]
try:
for hfunc in nodesbyhandler:
passvalues.append(
hfunc(nodes=nodesbyhandler[hfunc],
element=pathcomponents,
configmanager=configmanager,
inputdata=inputdata))
for res in itertools.chain(*passvalues):
_forward_rsp(connection, res)
except Exception as res:
_forward_rsp(connection, res)
connection.sendall('\x00\x00\x00\x00\x00\x00\x00\x00')
def handle_nodegroup_request(configmanager, inputdata,
pathcomponents, operation):
iscollection = False
routespec = None
if len(pathcomponents) < 2:
if operation == "create":
inputdata = msg.InputAttributes(pathcomponents, inputdata)
create_group(inputdata.attribs, configmanager)
allgroups = list(configmanager.get_groups())
try:
allgroups.sort(key=noderange.humanify_nodename)
except TypeError:
allgroups.sort()
return iterate_collections(allgroups)
elif len(pathcomponents) == 2:
iscollection = True
else:
try:
routespec = nested_lookup(nodegroupresources, pathcomponents[2:])
if isinstance(routespec, dict):
iscollection = True
elif isinstance(routespec, PluginCollection):
iscollection = False # it is a collection, but plugin defined
except KeyError:
raise exc.NotFoundException("Invalid element requested")
if iscollection:
if operation == "delete":
return delete_nodegroup_collection(pathcomponents,
configmanager)
elif operation == "retrieve":
return enumerate_nodegroup_collection(pathcomponents,
configmanager)
else:
raise Exception("TODO")
plugroute = routespec.routeinfo
inputdata = msg.get_input_message(
pathcomponents[2:], operation, inputdata)
if 'handler' in plugroute: # fixed handler definition
hfunc = getattr(pluginmap[plugroute['handler']], operation)
return hfunc(
nodes=None, element=pathcomponents,
configmanager=configmanager,
inputdata=inputdata)
raise Exception("unknown case encountered")
def handle_nodegroup_request(configmanager, inputdata, pathcomponents,
operation):
iscollection = False
routespec = None
if len(pathcomponents) < 2:
if operation == "create":
inputdata = msg.InputAttributes(pathcomponents, inputdata)
return create_group(inputdata.attribs, configmanager)
allgroups = list(configmanager.get_groups())
try:
allgroups.sort(key=noderange.humanify_nodename)
except TypeError:
allgroups.sort()
return iterate_collections(allgroups)
elif len(pathcomponents) == 2:
iscollection = True
else:
try:
routespec = nested_lookup(nodegroupresources, pathcomponents[2:])
if isinstance(routespec, dict):
iscollection = True
elif isinstance(routespec, PluginCollection):
iscollection = False # it is a collection, but plugin defined
except KeyError:
raise exc.NotFoundException("Invalid element requested")
if iscollection:
if operation == "delete":
return delete_nodegroup_collection(pathcomponents, configmanager)
elif operation == "retrieve":
return enumerate_nodegroup_collection(pathcomponents,
configmanager)
else:
raise Exception("TODO")
plugroute = routespec.routeinfo
inputdata = msg.get_input_message(pathcomponents[2:], operation, inputdata)
if 'handler' in plugroute: # fixed handler definition
hfunc = getattr(pluginmap[plugroute['handler']], operation)
return hfunc(nodes=None,
element=pathcomponents,
configmanager=configmanager,
inputdata=inputdata)
raise Exception("unknown case encountered")
def handle_node_request(configmanager, inputdata, operation,
pathcomponents, autostrip=True):
iscollection = False
routespec = None
if pathcomponents[0] == 'noderange':
if len(pathcomponents) > 3 and pathcomponents[2] == 'nodes':
# transform into a normal looking node request
# this does mean we don't see if it is a valid
# child, but that's not a goal for the noderange
# facility anyway
isnoderange = False
pathcomponents = pathcomponents[2:]
else:
isnoderange = True
else:
isnoderange = False
try:
nodeorrange = pathcomponents[1]
if not isnoderange and not configmanager.is_node(nodeorrange):
raise exc.NotFoundException("Invalid Node")
if isnoderange:
try:
nodes = noderange.NodeRange(nodeorrange, configmanager).nodes
except Exception as e:
raise exc.NotFoundException("Invalid Noderange: " + str(e))
else:
nodes = (nodeorrange,)
except IndexError: # doesn't actually have a long enough path
# this is enumerating a list of nodes or just empty noderange
if isnoderange and operation == "retrieve":
return iterate_collections([])
elif isnoderange or operation == "delete":
raise exc.InvalidArgumentException()
if operation == "create":
inputdata = msg.InputAttributes(pathcomponents, inputdata)
create_node(inputdata.attribs, configmanager)
allnodes = list(configmanager.list_nodes())
try:
allnodes.sort(key=noderange.humanify_nodename)
except TypeError:
allnodes.sort()
return iterate_collections(allnodes)
if (isnoderange and len(pathcomponents) == 3 and
pathcomponents[2] == 'nodes'):
# this means that it's a list of relevant nodes
nodes = list(nodes)
try:
nodes.sort(key=noderange.humanify_nodename)
except TypeError:
nodes.sort()
return iterate_collections(nodes)
if len(pathcomponents) == 2:
iscollection = True
else:
try:
routespec = nested_lookup(noderesources, pathcomponents[2:])
except KeyError:
raise exc.NotFoundException("Invalid element requested")
if isinstance(routespec, dict):
iscollection = True
elif isinstance(routespec, PluginCollection):
iscollection = False # it is a collection, but plugin defined
elif routespec is None:
raise exc.InvalidArgumentException('Custom interface required for resource')
if iscollection:
if operation == "delete":
return delete_node_collection(pathcomponents, configmanager)
elif operation == "retrieve":
return enumerate_node_collection(pathcomponents, configmanager)
else:
raise Exception("TODO here")
del pathcomponents[0:2]
passvalues = []
plugroute = routespec.routeinfo
inputdata = msg.get_input_message(
pathcomponents, operation, inputdata, nodes, isnoderange)
if 'handler' in plugroute: # fixed handler definition, easy enough
if isinstance(plugroute['handler'], str):
hfunc = getattr(pluginmap[plugroute['handler']], operation)
else:
hfunc = getattr(plugroute['handler'], operation)
passvalue = hfunc(
nodes=nodes, element=pathcomponents,
configmanager=configmanager,
inputdata=inputdata)
if isnoderange:
return passvalue
elif isinstance(passvalue, console.Console):
return passvalue
else:
return stripnode(passvalue, nodes[0])
elif 'pluginattrs' in plugroute:
nodeattr = configmanager.get_node_attributes(
nodes, plugroute['pluginattrs'])
plugpath = None
if 'default' in plugroute:
plugpath = plugroute['default']
nodesbyhandler = {}
for node in nodes:
for attrname in plugroute['pluginattrs']:
if attrname in nodeattr[node]:
plugpath = nodeattr[node][attrname]['value']
if plugpath is not None:
hfunc = getattr(pluginmap[plugpath], operation)
if hfunc in nodesbyhandler:
nodesbyhandler[hfunc].append(node)
else:
nodesbyhandler[hfunc] = [node]
for hfunc in nodesbyhandler:
passvalues.append(hfunc(
nodes=nodesbyhandler[hfunc], element=pathcomponents,
configmanager=configmanager,
inputdata=inputdata))
if isnoderange or not autostrip:
return itertools.chain(*passvalues)
else:
if len(passvalues) > 0:
if isinstance(passvalues[0], console.Console):
return passvalues[0]
else:
return stripnode(passvalues[0], nodes[0])
else:
raise exc.NotImplementedException()
def handle_node_request(configmanager,
inputdata,
operation,
pathcomponents,
autostrip=True):
if log.logfull:
raise exc.TargetResourceUnavailable(
'Filesystem full, free up space and restart confluent service')
iscollection = False
routespec = None
if pathcomponents[0] == 'noderange':
if len(pathcomponents) > 3 and pathcomponents[2] == 'nodes':
# transform into a normal looking node request
# this does mean we don't see if it is a valid
# child, but that's not a goal for the noderange
# facility anyway
isnoderange = False
pathcomponents = pathcomponents[2:]
elif len(pathcomponents) == 3 and pathcomponents[2] == 'abbreviate':
return abbreviate_noderange(configmanager, inputdata, operation)
else:
isnoderange = True
else:
isnoderange = False
try:
nodeorrange = pathcomponents[1]
if not isnoderange and not configmanager.is_node(nodeorrange):
raise exc.NotFoundException("Invalid Node")
if isnoderange and not (len(pathcomponents) == 3
and pathcomponents[2] == 'abbreviate'):
try:
nodes = noderange.NodeRange(nodeorrange, configmanager).nodes
except Exception as e:
raise exc.NotFoundException("Invalid Noderange: " + str(e))
else:
nodes = (nodeorrange, )
except IndexError: # doesn't actually have a long enough path
# this is enumerating a list of nodes or just empty noderange
if isnoderange and operation == "retrieve":
return iterate_collections([])
elif isnoderange and operation == "create":
inputdata = msg.InputAttributes(pathcomponents, inputdata)
return create_noderange(inputdata.attribs, configmanager)
elif isnoderange or operation == "delete":
raise exc.InvalidArgumentException()
if operation == "create":
inputdata = msg.InputAttributes(pathcomponents, inputdata)
return create_node(inputdata.attribs, configmanager)
allnodes = list(configmanager.list_nodes())
try:
allnodes.sort(key=noderange.humanify_nodename)
except TypeError:
allnodes.sort()
return iterate_collections(allnodes)
if (isnoderange and len(pathcomponents) == 3
and pathcomponents[2] == 'nodes'):
# this means that it's a list of relevant nodes
nodes = list(nodes)
try:
nodes.sort(key=noderange.humanify_nodename)
except TypeError:
nodes.sort()
return iterate_collections(nodes)
if len(pathcomponents) == 2:
iscollection = True
else:
try:
routespec = nested_lookup(noderesources, pathcomponents[2:])
except KeyError:
raise exc.NotFoundException("Invalid element requested")
if isinstance(routespec, dict):
iscollection = True
elif isinstance(routespec, PluginCollection):
iscollection = False # it is a collection, but plugin defined
elif routespec is None:
raise exc.InvalidArgumentException(
'Custom interface required for resource')
if iscollection:
if operation == "delete":
return delete_node_collection(pathcomponents, configmanager,
isnoderange)
elif operation == "retrieve":
return enumerate_node_collection(pathcomponents, configmanager)
else:
raise Exception("TODO here")
del pathcomponents[0:2]
passvalues = queue.Queue()
plugroute = routespec.routeinfo
msginputdata = msg.get_input_message(pathcomponents, operation, inputdata,
nodes, isnoderange, configmanager)
if 'handler' in plugroute: # fixed handler definition, easy enough
if isinstance(plugroute['handler'], str):
hfunc = getattr(pluginmap[plugroute['handler']], operation)
else:
hfunc = getattr(plugroute['handler'], operation)
passvalue = hfunc(nodes=nodes,
element=pathcomponents,
configmanager=configmanager,
inputdata=msginputdata)
if isnoderange:
return passvalue
elif isinstance(passvalue, console.Console):
return [passvalue]
else:
return stripnode(passvalue, nodes[0])
elif 'pluginattrs' in plugroute:
nodeattr = configmanager.get_node_attributes(
nodes, plugroute['pluginattrs'] + ['collective.manager'])
plugpath = None
nodesbymanager = {}
nodesbyhandler = {}
badcollnodes = []
for node in nodes:
for attrname in plugroute['pluginattrs']:
if attrname in nodeattr[node]:
plugpath = nodeattr[node][attrname]['value']
elif 'default' in plugroute:
plugpath = plugroute['default']
if plugpath in dispatch_plugins:
cfm.check_quorum()
manager = nodeattr[node].get('collective.manager',
{}).get('value', None)
if manager:
if collective.get_myname() != manager:
if manager not in nodesbymanager:
nodesbymanager[manager] = set([node])
else:
nodesbymanager[manager].add(node)
continue
elif list(cfm.list_collective()):
badcollnodes.append(node)
continue
if plugpath:
try:
hfunc = getattr(pluginmap[plugpath], operation)
except KeyError:
nodesbyhandler[BadPlugin(node, plugpath).error] = [node]
continue
if hfunc in nodesbyhandler:
nodesbyhandler[hfunc].append(node)
else:
nodesbyhandler[hfunc] = [node]
for bn in badcollnodes:
nodesbyhandler[BadCollective(bn).error] = [bn]
workers = greenpool.GreenPool()
numworkers = 0
for hfunc in nodesbyhandler:
numworkers += 1
workers.spawn(
addtoqueue, passvalues, hfunc, {
'nodes': nodesbyhandler[hfunc],
'element': pathcomponents,
'configmanager': configmanager,
'inputdata': msginputdata
})
for manager in nodesbymanager:
numworkers += 1
workers.spawn(
addtoqueue, passvalues, dispatch_request, {
'nodes': nodesbymanager[manager],
'manager': manager,
'element': pathcomponents,
'configmanager': configmanager,
'inputdata': inputdata,
'operation': operation,
'isnoderange': isnoderange
})
if isnoderange or not autostrip:
return iterate_queue(numworkers, passvalues)
else:
if numworkers > 0:
return iterate_queue(numworkers, passvalues, nodes[0])
else:
raise exc.NotImplementedException()
def handle_path(path,
operation,
configmanager,
inputdata=None,
autostrip=True):
"""Given a full path request, return an object.
The plugins should generally return some sort of iterator.
An exception is made for console/session, which should return
a class with connect(), read(), write(bytes), and close()
"""
pathcomponents = path.split('/')
del pathcomponents[0] # discard the value from leading /
if pathcomponents[-1] == '':
del pathcomponents[-1]
if not pathcomponents: # root collection list
return enumerate_collections(rootcollections)
elif pathcomponents[0] == 'noderange':
return handle_node_request(configmanager, inputdata, operation,
pathcomponents, autostrip)
elif pathcomponents[0] == 'deployment':
return handle_deployment(configmanager, inputdata, pathcomponents,
operation)
elif pathcomponents[0] == 'nodegroups':
return handle_nodegroup_request(configmanager, inputdata,
pathcomponents, operation)
elif pathcomponents[0] == 'nodes':
# single node request of some sort
return handle_node_request(configmanager, inputdata, operation,
pathcomponents, autostrip)
elif pathcomponents[0] == 'discovery':
return disco.handle_api_request(configmanager, inputdata, operation,
pathcomponents)
elif pathcomponents[0] == 'networking':
return macmap.handle_api_request(configmanager, inputdata, operation,
pathcomponents)
elif pathcomponents[0] == 'version':
return (msg.Attributes(kv={'version': confluent.__version__}), )
elif pathcomponents[0] == 'usergroups':
# TODO: when non-administrator accounts exist,
# they must only be allowed to see their own user
try:
usergroup = pathcomponents[1]
except IndexError: # it's just users/
if operation == 'create':
inputdata = msg.get_input_message(pathcomponents,
operation,
inputdata,
configmanager=configmanager)
create_usergroup(inputdata.attribs, configmanager)
return iterate_collections(configmanager.list_usergroups(),
forcecollection=False)
if usergroup not in configmanager.list_usergroups():
raise exc.NotFoundException("Invalid usergroup %s" % usergroup)
if operation == 'retrieve':
return show_usergroup(usergroup, configmanager)
elif operation == 'delete':
return delete_usergroup(usergroup, configmanager)
elif operation == 'update':
inputdata = msg.get_input_message(pathcomponents,
operation,
inputdata,
configmanager=configmanager)
update_usergroup(usergroup, inputdata.attribs, configmanager)
return show_usergroup(usergroup, configmanager)
elif pathcomponents[0] == 'users':
# TODO: when non-administrator accounts exist,
# they must only be allowed to see their own user
try:
user = pathcomponents[1]
except IndexError: # it's just users/
if operation == 'create':
inputdata = msg.get_input_message(pathcomponents,
operation,
inputdata,
configmanager=configmanager)
create_user(inputdata.attribs, configmanager)
return iterate_collections(configmanager.list_users(),
forcecollection=False)
if user not in configmanager.list_users():
raise exc.NotFoundException("Invalid user %s" % user)
if operation == 'retrieve':
return show_user(user, configmanager)
elif operation == 'delete':
return delete_user(user, configmanager)
elif operation == 'update':
inputdata = msg.get_input_message(pathcomponents,
operation,
inputdata,
configmanager=configmanager)
update_user(user, inputdata.attribs, configmanager)
return show_user(user, configmanager)
elif pathcomponents[0] == 'events':
try:
element = pathcomponents[1]
except IndexError:
if operation != 'retrieve':
raise exc.InvalidArgumentException('Target is read-only')
return (msg.ChildCollection('decode'), )
if element != 'decode':
raise exc.NotFoundException()
if operation == 'update':
return alerts.decode_alert(inputdata, configmanager)
elif pathcomponents[0] == 'discovery':
return handle_discovery(pathcomponents[1:], operation, configmanager,
inputdata)
else:
raise exc.NotFoundException()
def handle_node_request(configmanager,
inputdata,
operation,
pathcomponents,
autostrip=True):
iscollection = False
routespec = None
if pathcomponents[0] == 'noderange':
if len(pathcomponents) > 3 and pathcomponents[2] == 'nodes':
# transform into a normal looking node request
# this does mean we don't see if it is a valid
# child, but that's not a goal for the noderange
# facility anyway
isnoderange = False
pathcomponents = pathcomponents[2:]
elif len(pathcomponents) == 3 and pathcomponents[2] == 'abbreviate':
return abbreviate_noderange(configmanager, inputdata, operation)
else:
isnoderange = True
else:
isnoderange = False
try:
nodeorrange = pathcomponents[1]
if not isnoderange and not configmanager.is_node(nodeorrange):
raise exc.NotFoundException("Invalid Node")
if isnoderange and not (len(pathcomponents) == 3
and pathcomponents[2] == 'abbreviate'):
try:
nodes = noderange.NodeRange(nodeorrange, configmanager).nodes
except Exception as e:
raise exc.NotFoundException("Invalid Noderange: " + str(e))
else:
nodes = (nodeorrange, )
except IndexError: # doesn't actually have a long enough path
# this is enumerating a list of nodes or just empty noderange
if isnoderange and operation == "retrieve":
return iterate_collections([])
elif isnoderange and operation == "create":
inputdata = msg.InputAttributes(pathcomponents, inputdata)
return create_noderange(inputdata.attribs, configmanager)
elif isnoderange or operation == "delete":
raise exc.InvalidArgumentException()
if operation == "create":
inputdata = msg.InputAttributes(pathcomponents, inputdata)
return create_node(inputdata.attribs, configmanager)
allnodes = list(configmanager.list_nodes())
try:
allnodes.sort(key=noderange.humanify_nodename)
except TypeError:
allnodes.sort()
return iterate_collections(allnodes)
if (isnoderange and len(pathcomponents) == 3
and pathcomponents[2] == 'nodes'):
# this means that it's a list of relevant nodes
nodes = list(nodes)
try:
nodes.sort(key=noderange.humanify_nodename)
except TypeError:
nodes.sort()
return iterate_collections(nodes)
if len(pathcomponents) == 2:
iscollection = True
else:
try:
routespec = nested_lookup(noderesources, pathcomponents[2:])
except KeyError:
raise exc.NotFoundException("Invalid element requested")
if isinstance(routespec, dict):
iscollection = True
elif isinstance(routespec, PluginCollection):
iscollection = False # it is a collection, but plugin defined
elif routespec is None:
raise exc.InvalidArgumentException(
'Custom interface required for resource')
if iscollection:
if operation == "delete":
return delete_node_collection(pathcomponents, configmanager,
isnoderange)
elif operation == "retrieve":
return enumerate_node_collection(pathcomponents, configmanager)
else:
raise Exception("TODO here")
del pathcomponents[0:2]
passvalues = []
plugroute = routespec.routeinfo
inputdata = msg.get_input_message(pathcomponents, operation, inputdata,
nodes, isnoderange, configmanager)
if 'handler' in plugroute: # fixed handler definition, easy enough
if isinstance(plugroute['handler'], str):
hfunc = getattr(pluginmap[plugroute['handler']], operation)
else:
hfunc = getattr(plugroute['handler'], operation)
passvalue = hfunc(nodes=nodes,
element=pathcomponents,
configmanager=configmanager,
inputdata=inputdata)
if isnoderange:
return passvalue
elif isinstance(passvalue, console.Console):
return passvalue
else:
return stripnode(passvalue, nodes[0])
elif 'pluginattrs' in plugroute:
nodeattr = configmanager.get_node_attributes(nodes,
plugroute['pluginattrs'])
plugpath = None
if 'default' in plugroute:
plugpath = plugroute['default']
nodesbyhandler = {}
for node in nodes:
for attrname in plugroute['pluginattrs']:
if attrname in nodeattr[node]:
plugpath = nodeattr[node][attrname]['value']
if plugpath is not None:
try:
hfunc = getattr(pluginmap[plugpath], operation)
except KeyError:
nodesbyhandler[BadPlugin(node, plugpath).error] = [node]
continue
if hfunc in nodesbyhandler:
nodesbyhandler[hfunc].append(node)
else:
nodesbyhandler[hfunc] = [node]
for hfunc in nodesbyhandler:
passvalues.append(
hfunc(nodes=nodesbyhandler[hfunc],
element=pathcomponents,
configmanager=configmanager,
inputdata=inputdata))
if isnoderange or not autostrip:
return itertools.chain(*passvalues)
else:
if len(passvalues) > 0:
if isinstance(passvalues[0], console.Console):
return passvalues[0]
else:
return stripnode(passvalues[0], nodes[0])
else:
raise exc.NotImplementedException()
