def test_hopping_repo(self):
for n in self.nodes.values():
n.start_forwarder()
chunks: List[str] = []
for i, edge in [(1, 11), (2, 12), (3, 13), (4, 21), (5, 22), (6, 23),
(7, 31), (8, 32), (9, 33)]:
# Instead of moving a single repo from one node to the next, it's far easier to simply create a new one, and
# it SHOULDN'T make a difference.
repo = ICNDataRepository('/tmp/test_hopping_repo',
Name('/hoppingrepo'),
0,
encoder=NdnTlvEncoder(),
autoconfig=True,
autoconfig_routed=True)
repo.autoconfiglayer._broadcast_port = self.ports[edge]
repo.start_repo()
sleep(10)
# Start a fetch client which sends its interests to the core00 node
fetch = Fetch('127.0.0.1', self.ports[00], encoder=NdnTlvEncoder())
for _ in range(5):
try:
chunks.append(
fetch.fetch_data(Name(f'/edge/hoppingrepo/c{i}'),
timeout=4.0))
break
except queue.Empty:
pass
fetch.stop_fetch()
repo.stop_repo()
expected: List[str] = []
for c in [1, 2, 3, 4, 5, 6, 7, 8, 9]:
expected.append(f'This is test chunk {c}!')
self.assertEqual(expected, chunks)
def main(args):
name_str = args.name
name = None
if 'NFN' in name_str and '_' not in name_str:
name = parse_nfn_str(name_str)
if name is None:
if '[' in name_str and ']' in name_str:
name = unescape_str_to_Name(args.name)
else:
name = Name(args.name)
name = unescape_name(name)
name.format = args.format
encoder = NdnTlvEncoder(
) if args.format == 'ndntlv' else SimpleStringEncoder
fetchTool = Fetch(args.ip,
args.port,
encoder=encoder,
autoconfig=args.autoconfig)
content = fetchTool.fetch_data(name, timeout=10)
print(content)
fetchTool.stop_fetch()
def measure(fetch: Fetch, repo, forwarders, timeout: float,
random_startup_delay: bool) -> Tuple[float, str]:
repo.start_repo()
if random_startup_delay:
random.shuffle(forwarders)
for f in forwarders:
if random_startup_delay:
sleep(random.uniform(0.1, 0.5))
f.start_forwarder()
data = ''
start_time = datetime.utcnow()
while datetime.utcnow() < start_time + timedelta(seconds=timeout):
try:
data = fetch.fetch_data(Name('/picn/routing/testrepo/testcontent'),
1.0)
if data != 'testcontent':
sleep(0.1)
continue
else:
break
except queue.Empty:
pass
end_time = datetime.utcnow()
repo.stop_repo()
for f in forwarders:
f.stop_forwarder()
fetch.stop_fetch()
return (end_time - start_time).total_seconds(), data
class StreamingSimulation(unittest.TestCase):
"""Simulate a Streaming Scenario."""
def ageing(self):
return
def setUp(self):
self.simulation_bus = SimulationBus(packetencoder=NdnTlvEncoder())
self.fetch_tool1 = Fetch(
"nfn0",
None,
255,
NdnTlvEncoder(),
interfaces=[self.simulation_bus.add_interface("fetchtoo11")])
self.nfn0 = NFNForwarder(
port=0,
encoder=NdnTlvEncoder(),
interfaces=[self.simulation_bus.add_interface("nfn0")],
log_level=255,
executors={"PYTHONSTREAM": NFNPythonExecutorStreaming()},
ageing_interval=1)
self.nfn0.executors["PYTHONSTREAM"].initialize_executor(
self.nfn0.nfnlayer.queue_to_lower,
self.nfn0.nfnlayer.queue_from_lower, self.nfn0.nfnlayer.cs, False)
self.nfn0.icnlayer.pit.ageing = self.ageing
self.nfn0.timeoutpreventionlayer.ageing = self.ageing
self.nfn1 = NFNForwarder(
port=0,
encoder=NdnTlvEncoder(),
interfaces=[self.simulation_bus.add_interface("nfn1")],
log_level=255,
executors={"PYTHONSTREAM": NFNPythonExecutorStreaming()},
ageing_interval=1)
self.nfn1.executors["PYTHONSTREAM"].initialize_executor(
self.nfn1.nfnlayer.queue_to_lower,
self.nfn1.nfnlayer.queue_from_lower, self.nfn1.nfnlayer.cs, False)
self.nfn1.icnlayer.pit.ageing = self.ageing
self.nfn1.timeoutpreventionlayer.ageing = self.ageing
self.nfn12 = NFNForwarder(
port=0,
encoder=NdnTlvEncoder(),
interfaces=[self.simulation_bus.add_interface("nfn12")],
log_level=255,
executors={"PYTHONSTREAM": NFNPythonExecutorStreaming()},
ageing_interval=1)
self.nfn12.executors["PYTHONSTREAM"].initialize_executor(
self.nfn12.nfnlayer.queue_to_lower,
self.nfn12.nfnlayer.queue_from_lower, self.nfn12.nfnlayer.cs,
False)
self.nfn12.icnlayer.pit.ageing = self.ageing
self.nfn12.timeoutpreventionlayer.ageing = self.ageing
self.repo1 = ICNDataRepository(
"/tmp/repo1",
Name("/repo/r1"),
0,
255,
NdnTlvEncoder(),
False,
False,
interfaces=[self.simulation_bus.add_interface("repo1")])
self.mgmt_client0 = MgmtClient(
self.nfn0.mgmt.mgmt_sock.getsockname()[1])
self.mgmt_client1 = MgmtClient(
self.nfn1.mgmt.mgmt_sock.getsockname()[1])
self.mgmt_client01 = MgmtClient(
self.nfn12.mgmt.mgmt_sock.getsockname()[1])
def tearDown(self):
self.nfn0.stop_forwarder()
self.nfn1.stop_forwarder()
self.nfn12.stop_forwarder()
self.repo1.stop_repo()
self.fetch_tool1.stop_fetch()
self.simulation_bus.stop_process()
self.tearDown_repo()
def setup_faces_and_connections(self):
self.nfn0.start_forwarder()
self.nfn1.start_forwarder()
self.nfn12.start_forwarder()
self.repo1.start_repo()
self.simulation_bus.start_process()
time.sleep(3)
#setup forwarding rules
self.mgmt_client0.add_face("nfn1", None, 0)
self.mgmt_client0.add_forwarding_rule(Name("/lib0"), [0])
self.mgmt_client0.add_face("nfn12", None, 0)
self.mgmt_client0.add_forwarding_rule(Name("/lib1"), [1])
self.mgmt_client01.add_face("nfn1", None, 0)
self.mgmt_client01.add_forwarding_rule(Name("/lib1"), [0])
self.mgmt_client1.add_face("repo1", None, 0)
self.mgmt_client1.add_forwarding_rule(Name("/repo/r1"), [0])
self.mgmt_client1.add_face("nfn0", None, 0)
self.mgmt_client1.add_forwarding_rule(Name("/lib0"), [1])
#setup function code
#multi name
self.mgmt_client1.add_new_content(
Name("/lib0/multiname"),
"PYTHONSTREAM\nmultiname\ndef multiname(arg):\n a = get_next(arg)\n a = a.upper()\n b = get_next(arg)\n b = b.upper()\n c = get_next(arg)\n c = c.upper()\n d = get_next(arg)\n d = d.upper()\n e = get_next(arg)\n e = e.upper()\n f = get_next(arg)\n f = f.upper()\n g = get_next(arg)\n g = g.upper()\n h = get_next(arg)\n h = h.upper()\n i = get_next(arg)\n i = i.upper()\n j = get_next(arg)\n j = j.upper()\n return a + b + c + d + e + f + g + h + i + j"
)
#single name - two layer
self.mgmt_client0.add_new_content(
Name("/lib0/node0"),
"PYTHONSTREAM\ngetnext_on_writeout\ndef getnext_on_writeout(arg):\n print('Start äussere')\n a = get_next(arg)\n a = a.upper()\n b = get_next(arg)\n b = b.upper()\n c = get_next(arg)\n c = c.upper()\n d = get_next(arg)\n d = d.upper()\n e = get_next(arg)\n e = e.upper()\n f = get_next(arg)\n f = f.upper()\n g = get_next(arg)\n g = g.upper()\n h = get_next(arg)\n h = h.upper()\n i = get_next(arg)\n i = i.upper()\n j = get_next(arg)\n j = j.upper()\n print('Ende äussere')\n return a + b + c + d + e + f + g + h + i + j"
)
self.mgmt_client1.add_new_content(
Name("/lib0/node1"),
"PYTHONSTREAM\nwriteout_on_getnext\ndef writeout_on_getnext(arg):\n print('Start innere')\n write_out_on_get_next(arg)\n return print('Ende innere')\n"
)
#single name - three layer
self.mgmt_client0.add_new_content(
Name("/lib1/node0"),
"PYTHONSTREAM\ngetnext_on_writeout\ndef getnext_on_writeout(arg):\n print('Start äussere')\n a = get_next(arg)\n a = a.upper()\n b = get_next(arg)\n b = b.upper()\n c = get_next(arg)\n c = c.upper()\n d = get_next(arg)\n d = d.upper()\n e = get_next(arg)\n e = e.upper()\n f = get_next(arg)\n f = f.upper()\n g = get_next(arg)\n g = g.upper()\n h = get_next(arg)\n h = h.upper()\n i = get_next(arg)\n i = i.upper()\n j = get_next(arg)\n j = j.upper()\n print('Ende äussere')\n return a + b + c + d + e + f + g + h + i + j"
)
self.mgmt_client01.add_new_content(
Name("/lib1/node1"),
"PYTHONSTREAM\nwriteout_on_getnext\ndef writeout_on_getnext(arg):\n print('Start mittlere')\n write_out_on_get_next(arg)\n return print('Ende mittlere')\n"
)
self.mgmt_client1.add_new_content(
Name("/lib1/node2"),
"PYTHONSTREAM\nwriteout_on_getnext\ndef writeout_on_getnext(arg):\n print('Start innere')\n write_out_on_get_next(arg)\n return print('Ende innere')\n"
)
def generate_name_files(self, path: str, number: int):
with open(path + "/name" + str(number), "w") as f:
f.write("Content of name" + str(number) + ". ")
f.close()
def setup_repo(self):
self.path = "/tmp/repo1"
try:
os.stat(self.path)
except:
os.mkdir(self.path)
with open(self.path + "/data1", 'w+') as content_file:
content_file.write("sdo:\n")
for i in range(1, 11):
content_file.write("/repo/r1/name" + str(i) + "\n")
self.generate_name_files(self.path, i)
content_file.write("sdo:endstreaming\n")
def tearDown_repo(self):
try:
shutil.rmtree(self.path)
os.remove("/tmp/repo")
except:
pass
def test_multiname(self):
"""Multiname test with input data from repo"""
self.setup_repo()
self.setup_faces_and_connections()
name = Name("/lib0/multiname")
name += '_(/repo/r1/data1)'
name += "NFN"
res = self.fetch_tool1.fetch_data(name, timeout=40)
print(res)
self.assertEqual(
"CONTENT OF NAME1. CONTENT OF NAME2. CONTENT OF NAME3. CONTENT OF NAME4. CONTENT OF NAME5. CONTENT OF NAME6. CONTENT OF NAME7. CONTENT OF NAME8. CONTENT OF NAME9. CONTENT OF NAME10. ",
res)
def test_twolayer(self):
"""Singlename test over two layers with input data from repo"""
self.setup_repo()
self.setup_faces_and_connections()
scenario_node_1 = Name("/lib0/node1")
scenario_node_1 += "#(=/repo/r1/data1=)"
scenario_node_1 += "NFN"
scenario_node_0 = Name("/lib0/node0")
scenario_node_0 += '_("' + str(scenario_node_1) + '")'
scenario_node_0 += "NFN"
res = self.fetch_tool1.fetch_data(scenario_node_0, timeout=40)
print(res)
self.assertEqual(
"CONTENT OF NAME1. CONTENT OF NAME2. CONTENT OF NAME3. CONTENT OF NAME4. CONTENT OF NAME5. CONTENT OF NAME6. CONTENT OF NAME7. CONTENT OF NAME8. CONTENT OF NAME9. CONTENT OF NAME10. ",
res)
def test_threelayer(self):
"""Singlename test over three layers with input data from repo"""
self.setup_repo()
self.setup_faces_and_connections()
scenario_node_2 = Name("/lib1/node2")
scenario_node_2 += "#(=/repo/r1/data1=)"
scenario_node_2 += "NFN"
scenario_node_1 = Name("/lib1/node1")
scenario_node_1 += "#(=" + str(scenario_node_2) + "=)"
scenario_node_1 += "NFN"
scenario_node_0 = Name("/lib1/node0")
scenario_node_0 += '_("' + str(scenario_node_1) + '")'
scenario_node_0 += "NFN"
res = self.fetch_tool1.fetch_data(scenario_node_0, timeout=40)
print(res)
self.assertEqual(
"CONTENT OF NAME1. CONTENT OF NAME2. CONTENT OF NAME3. CONTENT OF NAME4. CONTENT OF NAME5. CONTENT OF NAME6. CONTENT OF NAME7. CONTENT OF NAME8. CONTENT OF NAME9. CONTENT OF NAME10. ",
res)
class test_NFNForwarderThunks(unittest.TestCase):
"""Test NFN Forwarder with Thunks"""
#TODO: Add optimizer to execute the plans
#TODO: Add REPO TO TEST
def get_encoder(self):
return NdnTlvEncoder()
def setUp(self):
self.encoder = self.get_encoder()
self.forwarder1 = NFNForwarder(0,
encoder=self.get_encoder(),
log_level=255,
use_thunks=True)
self.forwarder2 = NFNForwarder(0,
encoder=self.get_encoder(),
log_level=255,
use_thunks=True)
self.forwarder3 = NFNForwarder(0,
encoder=self.get_encoder(),
log_level=255,
use_thunks=True)
self.forwarder1_port = self.forwarder1.linklayer.interfaces[
0].get_port()
self.forwarder2_port = self.forwarder2.linklayer.interfaces[
0].get_port()
self.forwarder3_port = self.forwarder3.linklayer.interfaces[
0].get_port()
self.forwarder1.icnlayer.pit.set_pit_timeout(10)
self.forwarder1.icnlayer.pit.set_pit_retransmits(10)
self.client = Fetch("127.0.0.1", self.forwarder1_port, 255,
self.get_encoder())
self.mgmt1 = MgmtClient(self.forwarder1_port)
self.mgmt2 = MgmtClient(self.forwarder2_port)
self.mgmt3 = MgmtClient(self.forwarder3_port)
self.forwarder1.start_forwarder()
self.forwarder2.start_forwarder()
self.forwarder3.start_forwarder()
self.mgmt1.add_face("127.0.0.1", self.forwarder2_port, 0)
self.mgmt1.add_face("127.0.0.1", self.forwarder3_port, 0)
self.mgmt1.add_forwarding_rule(Name("/dat"), [0])
self.mgmt1.add_forwarding_rule(Name("/fct"), [1])
self.content1 = "This is our test content object" * 20
self.function1 = "PYTHON\nf\ndef f(a):\n return a.upper()"
self.mgmt2.add_new_content(Name("/dat/data/d1"), self.content1)
self.mgmt3.add_new_content(Name("/fct/f1"), self.function1)
def tearDown(self):
self.forwarder1.stop_forwarder()
self.forwarder2.stop_forwarder()
self.forwarder3.stop_forwarder()
self.client.stop_fetch()
def test_simple_thunk_query(self):
"""Test a simple thunk query"""
name = Name("/fct/f1")
name += "_(/dat/data/d1)"
name += "THUNK"
name += "NFN"
res = self.client.fetch_data(name, timeout=4)
self.assertEqual(res, "659")
#print(self.forwarder1.thunk_layer.planTable.get_plan(self.forwarder1.thunk_layer.removeThunkMarker(name)))
name2 = Name("/fct/f1")
name2 += "_(/dat/data/d1)"
name2 += "NFN"
res2 = self.client.fetch_data(name2)
self.assertEqual(res2, self.content1.upper())
def test_simple_thunk_query_additional_fwd_rule_to_fct(self):
"""Test a simple thunk query. Add additional rule to have cheap computation at data location"""
self.mgmt2.add_face("127.0.0.1", self.forwarder3_port, 0)
self.mgmt2.add_forwarding_rule(Name("/fct"), [0])
name = Name("/fct/f1")
name += "_(/dat/data/d1)"
name += "THUNK"
name += "NFN"
res = self.client.fetch_data(name, timeout=4)
self.assertEqual(res, "39")
#print(self.forwarder1.thunk_layer.planTable.get_plan(self.forwarder1.thunk_layer.removeThunkMarker(name)))
name2 = Name("/fct/f1")
name2 += "_(/dat/data/d1)"
name2 += "NFN"
res2 = self.client.fetch_data(name2)
self.assertEqual(res2, self.content1.upper())
def test_simple_thunk_query_additional_fwd_rule_to_data(self):
"""Test a simple thunk query. Add additional rule to have cheap computation at fct location"""
self.mgmt3.add_face("127.0.0.1", self.forwarder2_port, 0)
self.mgmt3.add_forwarding_rule(Name("/dat"), [0])
name = Name("/fct/f1")
name += "_(/dat/data/d1)"
name += "THUNK"
name += "NFN"
res = self.client.fetch_data(name, timeout=4)
self.assertEqual(res, "620")
#print(self.forwarder1.thunk_layer.planTable.get_plan(self.forwarder1.thunk_layer.removeThunkMarker(name)))
name2 = Name("/fct/f1")
name2 += "_(/dat/data/d1)"
name2 += "NFN"
res2 = self.client.fetch_data(name2)
self.assertEqual(res2, self.content1.upper())
def test_simple_thunk_query_additional_fwd_rule_to_fct_and_data(self):
"""Test a simple thunk query. Add additional rule to have cheap computation at fct and data location"""
self.mgmt2.add_face("127.0.0.1", self.forwarder3_port, 0)
self.mgmt2.add_forwarding_rule(Name("/fct"), [0])
self.mgmt3.add_face("127.0.0.1", self.forwarder2_port, 0)
self.mgmt3.add_forwarding_rule(Name("/dat"), [0])
name = Name("/fct/f1")
name += "_(/dat/data/d1)"
name += "THUNK"
name += "NFN"
res = self.client.fetch_data(name, timeout=50)
self.assertEqual(res, "39")
#print(self.forwarder1.thunk_layer.planTable.get_plan(self.forwarder1.thunk_layer.removeThunkMarker(name)))
name2 = Name("/fct/f1")
name2 += "_(/dat/data/d1)"
name2 += "NFN"
res2 = self.client.fetch_data(name2)
self.assertEqual(res2, self.content1.upper())
class cases_FetchNFN(object):
@abc.abstractmethod
def get_encoder(self):
"""get the packet encoder to be used"""
def setUp(self):
self.data1 = "data1"
self.data2 = 'a' * 5000
self.data3 = 'b' * 20000
self.path = "/tmp/repo_unit_test"
try:
os.stat(self.path)
except:
os.mkdir(self.path)
with open(self.path + "/d1", 'w+') as content_file:
content_file.write(self.data1)
with open(self.path + "/d2", 'w+') as content_file:
content_file.write(self.data2)
with open(self.path + "/d3", 'w+') as content_file:
content_file.write('b' * 20000)
self.ICNRepo: ICNDataRepository = ICNDataRepository(
"/tmp/repo_unit_test",
Name("/test/data"),
0,
encoder=self.get_encoder(),
log_level=255)
self.forwarder1: NFNForwarder = NFNForwarder(
0, log_level=255, encoder=self.get_encoder())
self.forwarder2: NFNForwarder = NFNForwarder(
0, log_level=255, encoder=self.get_encoder())
self.repo_port = self.ICNRepo.linklayer.interfaces[0].get_port()
self.fwd_port1 = self.forwarder1.linklayer.interfaces[0].get_port()
self.fwd_port2 = self.forwarder2.linklayer.interfaces[0].get_port()
self.fetch = Fetch("127.0.0.1",
self.fwd_port1,
encoder=self.get_encoder())
def add_face_and_forwadingrule(self):
#create new face
self.mgmtClient1 = MgmtClient(self.fwd_port1)
self.mgmtClient1.add_face("127.0.0.1", self.fwd_port2, 0)
self.mgmtClient1.add_forwarding_rule(Name("/lib"), 0)
self.mgmtClient1.add_face("127.0.0.1", self.repo_port, 0)
self.mgmtClient1.add_forwarding_rule(Name("/test"), 0)
self.mgmtClient2 = MgmtClient(self.fwd_port2)
self.mgmtClient2.add_face("127.0.0.1", self.repo_port, 0)
self.mgmtClient2.add_forwarding_rule(Name("/test"), 0)
def tearDown(self):
try:
shutil.rmtree(self.path)
os.remove(self.path)
except:
pass
self.mgmtClient1.shutdown()
self.mgmtClient2.shutdown()
self.ICNRepo.stop_repo()
self.forwarder1.stop_forwarder()
self.forwarder2.stop_forwarder()
self.fetch.stop_fetch()
def test_fetch_single_data_from_repo_over_forwarder(self):
"""Test fetch data from repo over forwarder"""
self.ICNRepo.start_repo()
self.forwarder1.start_forwarder()
self.forwarder2.start_forwarder()
time.sleep(0.1)
self.add_face_and_forwadingrule()
fetch_name = "/test/data/d1"
try:
content = self.fetch.fetch_data(fetch_name, timeout=15.0)
except:
self.fail
self.assertEqual(self.data1, content)
def test_fetch_chunked_data_from_repo_over_forwarder(self):
"""Test fetch chunked data from repo over forwarder"""
self.ICNRepo.start_repo()
self.forwarder1.start_forwarder()
self.forwarder2.start_forwarder()
time.sleep(0.1)
self.add_face_and_forwadingrule()
fetch_name = "/test/data/d3"
content = self.fetch.fetch_data(fetch_name, timeout=15.0)
self.assertEqual(self.data3, content)
def test_compute_on_single_data_over_forwarder(self):
"""Test fetch result with single input data"""
self.ICNRepo.start_repo()
self.forwarder1.start_forwarder()
self.forwarder2.start_forwarder()
time.sleep(0.1)
self.add_face_and_forwadingrule()
self.mgmtClient1.add_new_content(Name("/test/data/d1"), self.data1)
self.mgmtClient2.add_new_content(
Name("/lib/func/f1"), "PYTHON\nf\ndef f(a):\n return a.upper()")
fetch_name = Name("/lib/func/f1")
fetch_name += "_(/test/data/d1)"
fetch_name += "NFN"
try:
content = self.fetch.fetch_data(fetch_name, timeout=15.0)
except:
self.fail()
self.assertEqual(self.data1.upper(), content)
def test_compute_on_single_data_over_forwarder_data_from_repo(self):
"""Test fetch result with single input data from repo"""
self.ICNRepo.start_repo()
self.forwarder1.start_forwarder()
self.forwarder2.start_forwarder()
time.sleep(0.1)
self.add_face_and_forwadingrule()
self.mgmtClient2.add_new_content(
Name("/lib/func/f1"), "PYTHON\nf\ndef f(a):\n return a.upper()")
fetch_name = Name("/lib/func/f1")
fetch_name += "_(/test/data/d1)"
fetch_name += "NFN"
try:
content = self.fetch.fetch_data(fetch_name, timeout=10.0)
except:
self.fail()
self.assertEqual(self.data1.upper(), content)
def test_compute_on_large_data_over_forwarder_data_from_repo(self):
"""Test fetch result with large input data from repo"""
self.ICNRepo.start_repo()
self.forwarder1.start_forwarder()
self.forwarder2.start_forwarder()
time.sleep(0.1)
self.add_face_and_forwadingrule()
self.mgmtClient2.add_new_content(
Name("/lib/func/f1"), "PYTHON\nf\ndef f(a):\n return a.upper()")
fetch_name = Name("/lib/func/f1")
fetch_name += "_(/test/data/d3)"
fetch_name += "NFN"
try:
content = self.fetch.fetch_data(fetch_name, timeout=10.0)
except:
self.fail()
self.assertEqual(self.data3.upper(), content)
def test_compute_on_large_data_over_forwarder_data_from_repo_to_data_prefix(
self):
"""Test fetch result with large input data from repo with a to data prefix"""
self.ICNRepo.start_repo()
self.forwarder1.start_forwarder()
self.forwarder2.start_forwarder()
time.sleep(0.1)
self.add_face_and_forwadingrule()
self.mgmtClient2.add_new_content(
Name("/lib/func/f1"), "PYTHON\nf\ndef f(a):\n return a.upper()")
fetch_name = Name("/test/data/d3")
fetch_name += "/lib/func/f1(_)"
fetch_name += "NFN"
try:
content = self.fetch.fetch_data(fetch_name, timeout=10.0)
except:
self.fail()
self.assertEqual(self.data3.upper(), content)
class ICNSessionSimulation(unittest.TestCase):
"""Simulate a Scenario where timeout prevention is required"""
def setUp(self):
self.simulation_bus = SimulationBus(
log_level=0) # Use BasicStringEncoder
self.icn_repo0 = ICNDataRepository(
port=0,
prefix=Name('/test/t1'),
foldername=None,
interfaces=[self.simulation_bus.add_interface('repo0')],
log_level=255) # Initialize repository 0
self.icn_repo1 = ICNDataRepositorySession(
port=0,
prefix=Name('/test/t2'),
foldername=None,
interfaces=[self.simulation_bus.add_interface('repo1')],
log_level=0) # Initialize repository 1 (this one has sessions)
self.icn_forwarder0 = ICNForwarder(
port=0,
log_level=255,
interfaces=[self.simulation_bus.add_interface('fw0')
]) # Initialize forwarder 0
self.icn_forwarder1 = ICNForwarder(
port=0,
log_level=255,
interfaces=[self.simulation_bus.add_interface('fw1')
]) # Initialize forwarder 1
self.mgmt_client0 = MgmtClient(
self.icn_repo0.mgmt.mgmt_sock.getsockname()
[1]) # Mgmt client for repository 0
self.mgmt_client1 = MgmtClient(
self.icn_repo1.mgmt.mgmt_sock.getsockname()
[1]) # Mgmt client for repository 1
self.mgmt_client2 = MgmtClient(
self.icn_forwarder0.mgmt.mgmt_sock.getsockname()
[1]) # Mgmt client for forwarder 0
self.mgmt_client3 = MgmtClient(
self.icn_forwarder1.mgmt.mgmt_sock.getsockname()
[1]) # Mgmt client for forwarder 1
# This is unintuitive. Why does the fetch tool add its own face, but the other components don't?
self.fetch0 = Fetch('fw0',
None,
log_level=255,
interfaces=[
self.simulation_bus.add_interface('fetcht0')
]) # Initialize a client (fetch tool)
self.fetch1 = FetchSessions(
'fw0',
None,
log_level=255,
interfaces=[self.simulation_bus.add_interface('fetcht1')])
self.icn_repo0.start_repo()
self.icn_repo1.start_repo()
self.icn_forwarder0.start_forwarder()
self.icn_forwarder1.start_forwarder()
self.simulation_bus.start_process()
time.sleep(1) # Be safe and wait for all processes to start
self.mgmt_client2.add_face(
'repo0', None,
0) # Add new interface to forwarder 0, index has to be 0.
self.mgmt_client2.add_face(
'fw1', None,
0) # # Add new interface to forwarder 0, index has to be 0.
self.mgmt_client2.add_forwarding_rule(
Name('/test/t1'),
[0]) # Add a forward-rule this prefix to interface with index 0.
self.mgmt_client2.add_forwarding_rule(
Name('/test/t2'),
[1]) # Add a forward-rule this prefix to interface with index 1.
self.mgmt_client3.add_face(
'repo1', None,
0) # Add new interface to forwarder 1, index has to be 0.
self.mgmt_client3.add_forwarding_rule(
Name('/test/t2'),
[0]) # Add a forward-rule this prefix to interface with index 0.
# Repositories do not need a forwarding rule or an interface. All done in constructor.
self.test_content = 'This is just a test for repo0.'
self.icn_repo0.repo.add_content(
Name('/test/t1/content_object'), self.test_content
) # TODO: Create add_new_content command for DataRepository in ManagementClient
print(self.icn_forwarder0.icnlayer.fib)
print(self.icn_forwarder1.icnlayer.fib)
def tearDown(self):
time.sleep(
1
) # Be safe and wait for all messages to trickle in before shutting down everything
self.icn_forwarder0.stop_forwarder()
self.icn_forwarder1.stop_forwarder()
self.fetch0.stop_fetch()
self.fetch1.stop_fetch()
self.simulation_bus.stop_process()
self.mgmt_client0.shutdown()
self.mgmt_client1.shutdown()
self.mgmt_client2.shutdown()
self.mgmt_client3.shutdown()
def test_simple_interest(self):
interest = Name(
'/test/t1/content_object') # Test routing, no new features.
res = self.fetch0.fetch_data(interest, timeout=20)
print(f"Return value: {res}")
self.assertEqual(self.test_content, res, 'The content matches.')
def test_simple_session_initiation(self):
interest = Name(
"/test/t2/session_connector"
) # Test session connection string. This should return 16bits
res = self.fetch1.fetch_data(interest, timeout=20)
print(f"Return value : {res}")
self.assertEqual(self.icn_repo1.repolayer._pending_sessions[0],
self.fetch1._session_keys[0],
'The session keys match.')
class cases_Simulation():
"""Test the PiCN Simulation System"""
@abc.abstractmethod
def get_encoder(self) -> BasicEncoder:
pass
def setUp(self):
self.encoder_type = self.get_encoder()
self.simulation_bus = SimulationBus(packetencoder=self.encoder_type())
self.fetchiface = self.simulation_bus.add_interface("fetch")
self.encoder = self.encoder_type()
self.icn_forwarder1 = ICNForwarder(port=0, encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("icnfwd1")], log_level=255)
self.icn_forwarder2 = ICNForwarder(port=0, encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("icnfwd2")], log_level=255)
#self.simulation_bus.start_process()
def tearDown(self):
try:
self.simulation_bus.stop_process()
self.icn_forwarder1.stop_forwarder()
self.icn_forwarder2.stop_forwarder()
except:
self.icn_forwarder2.stop_repo()
pass
def test_send_single_packet(self):
"""Test fetching a single content object over the simulation bus"""
self.icn_forwarder1.start_forwarder()
self.icn_forwarder2.start_forwarder()
self.simulation_bus.start_process()
fid1 = self.icn_forwarder1.linklayer.faceidtable.get_or_create_faceid(AddressInfo("icnfwd2", 0))
self.icn_forwarder1.icnlayer.fib.add_fib_entry(Name("/test"), [fid1])
self.icn_forwarder2.icnlayer.cs.add_content_object(Content("/test/data", "HelloWorld"), static=True)
interest = Interest("/test/data")
wire_data = self.encoder.encode(interest)
self.fetchiface.send(wire_data, "icnfwd1")
res, src = self.fetchiface.receive()
self.assertEqual(src, "icnfwd1")
c = self.encoder.decode(res)
self.assertEqual(c, Content("/test/data", "HelloWorld"))
def test_send_single_packet_with_delay(self):
"""Test fetching a single content object over the simulation bus"""
delay_func = lambda packet: 0.5
self.fetchiface = self.simulation_bus.add_interface("fetch", delay_func=delay_func)
self.icn_forwarder1 = ICNForwarder(port=0, encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("icnfwd1", delay_func=delay_func)])
self.icn_forwarder2 = ICNForwarder(port=0, encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("icnfwd2", delay_func=delay_func)])
self.simulation_bus.start_process()
self.icn_forwarder1.start_forwarder()
self.icn_forwarder2.start_forwarder()
fid1 = self.icn_forwarder1.linklayer.faceidtable.get_or_create_faceid(AddressInfo("icnfwd2", 0))
self.icn_forwarder1.icnlayer.fib.add_fib_entry(Name("/test"), [fid1])
self.icn_forwarder2.icnlayer.cs.add_content_object(Content("/test/data", "HelloWorld"), static=True)
interest = Interest("/test/data")
wire_data = self.encoder.encode(interest)
self.fetchiface.send(wire_data, "icnfwd1")
res, src = self.fetchiface.receive()
self.assertEqual(src, "icnfwd1")
c = self.encoder.decode(res)
self.assertEqual(c, Content("/test/data", "HelloWorld"))
def test_send_single_packet_with_packet_loss(self):
"""Test fetching a single content object over the simulation bus"""
packet_loss_func = lambda packet: True
self.fetchiface = self.simulation_bus.add_interface("fetch", packet_loss_func=packet_loss_func)
self.icn_forwarder1 = ICNForwarder(port=0, encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("icnfwd1", packet_loss_func=packet_loss_func)])
self.icn_forwarder2 = ICNForwarder(port=0, encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("icnfwd2", packet_loss_func=packet_loss_func)])
self.simulation_bus.start_process()
self.icn_forwarder1.start_forwarder()
self.icn_forwarder2.start_forwarder()
fid1 = self.icn_forwarder1.linklayer.faceidtable.get_or_create_faceid(AddressInfo("icnfwd2", 0))
self.icn_forwarder1.icnlayer.fib.add_fib_entry(Name("/test"), [fid1])
self.icn_forwarder2.icnlayer.cs.add_content_object(Content("/test/data", "HelloWorld"), static=True)
interest = Interest("/test/data")
wire_data = self.encoder.encode(interest)
self.fetchiface.send(wire_data, "icnfwd1")
try:
self.fetchiface.receive(timeout=4)
except queue.Empty:
pass
else:
self.fail()
def test_creation_of_simulation_face_mgmt(self):
"""Test the creation of a simulation face using a mgmt client"""
self.icn_forwarder1.start_forwarder()
self.icn_forwarder2.start_forwarder()
self.simulation_bus.start_process()
mgmt_client1 = MgmtClient(self.icn_forwarder1.mgmt.mgmt_sock.getsockname()[1])
mgmt_client1.add_face("icnfwd2", None, 0)
mgmt_client1.add_forwarding_rule(Name("/test"), [0])
mgmt_client2 = MgmtClient(self.icn_forwarder2.mgmt.mgmt_sock.getsockname()[1])
mgmt_client2.add_new_content(Name("/test/data"), "HelloWorld")
interest = Interest("/test/data")
wire_data = self.encoder.encode(interest)
self.fetchiface.send(wire_data, "icnfwd1")
res, src = self.fetchiface.receive()
self.assertEqual(src, "icnfwd1")
c = self.encoder.decode(res)
self.assertEqual(c, Content("/test/data", "HelloWorld"))
mgmt_client1.shutdown()
mgmt_client2.shutdown()
def test_bandwidth_limit(self): #TODO better test here
"""Simple Test for checking the bandwidth limit"""
self.icn_forwarder1 = ICNForwarder(port=0, encoder=self.encoder_type(),
interfaces=[
self.simulation_bus.add_interface("icnfwd1", max_bandwidth=1)])
self.icn_forwarder2 = ICNForwarder(port=0, encoder=self.encoder_type(),
interfaces=[
self.simulation_bus.add_interface("icnfwd2", max_bandwidth=1)])
self.icn_forwarder1.start_forwarder()
self.icn_forwarder2.start_forwarder()
self.simulation_bus.start_process()
mgmt_client1 = MgmtClient(self.icn_forwarder1.mgmt.mgmt_sock.getsockname()[1])
mgmt_client1.add_face("icnfwd2", None, 0)
mgmt_client1.add_forwarding_rule(Name("/test"), [0])
mgmt_client2 = MgmtClient(self.icn_forwarder2.mgmt.mgmt_sock.getsockname()[1])
mgmt_client2.add_new_content(Name("/test/data"), "HelloWorld")
interest = Interest("/test/data")
wire_data = self.encoder.encode(interest)
self.fetchiface.send(wire_data, "icnfwd1")
res, src = self.fetchiface.receive()
self.assertEqual(src, "icnfwd1")
c = self.encoder.decode(res)
self.assertEqual(c, Content("/test/data", "HelloWorld"))
mgmt_client1.shutdown()
mgmt_client2.shutdown()
def test_single_nfn_interest(self):
"""Test simulation with NFN nodes and a single packet """
self.icn_forwarder1 = NFNForwarder(port=0, encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("icnfwd1")])
self.icn_forwarder2 = NFNForwarder(port=0, encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("icnfwd2")])
self.icn_forwarder1.start_forwarder()
self.icn_forwarder2.start_forwarder()
self.simulation_bus.start_process()
mgmt_client1 = MgmtClient(self.icn_forwarder1.mgmt.mgmt_sock.getsockname()[1])
mgmt_client1.add_face("icnfwd2", None, 0)
mgmt_client1.add_forwarding_rule(Name("/test"), [0])
mgmt_client1.add_new_content(Name("/func/f1"), "PYTHON\nf\ndef f(a):\n return a.upper()")
mgmt_client2 = MgmtClient(self.icn_forwarder2.mgmt.mgmt_sock.getsockname()[1])
mgmt_client2.add_new_content(Name("/test/data"), "HelloWorld")
mgmt_client2.add_face("icnfwd1", None, 0)
mgmt_client2.add_forwarding_rule(Name("/func"), [0])
interest = Interest("/test/data")
interest.name += "/func/f1(_)"
interest.name += "NFN"
wire_data = self.encoder.encode(interest)
self.fetchiface.send(wire_data, "icnfwd1")
res, src = self.fetchiface.receive()
self.assertEqual(src, "icnfwd1")
c = self.encoder.decode(res)
self.assertEqual(c, Content(interest.name, "HELLOWORLD"))
mgmt_client1.shutdown()
mgmt_client2.shutdown()
def test_singl_interest_repo(self):
"""Test simulation by requesting data from a repo"""
self.path = "/tmp/repo_unit_test"
try:
os.stat( self.path)
except:
os.mkdir( self.path)
with open( self.path + "/f1", 'w+') as content_file:
content_file.write("A"*20000)
self.icn_forwarder2 = ICNDataRepository(self.path, Name("/test/data"), 0, log_level=255, encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("icnfwd2")])
self.icn_forwarder1.start_forwarder()
self.icn_forwarder2.start_repo()
self.simulation_bus.start_process()
mgmt_client1 = MgmtClient(self.icn_forwarder1.mgmt.mgmt_sock.getsockname()[1])
mgmt_client1.add_face("icnfwd2", None, 0)
mgmt_client1.add_forwarding_rule(Name("/test"), [0])
interest = Interest("/test/data/f1")
wire_data = self.encoder.encode(interest)
self.fetchiface.send(wire_data, "icnfwd1")
res, src = self.fetchiface.receive()
self.assertEqual(src, "icnfwd1")
c = self.encoder.decode(res)
self.assertEqual(c, Content(interest.name, "mdo:20000:/test/data/f1/c0;/test/data/f1/c1;/test/data/f1/c2;/test/data/f1/c3:/test/data/f1/m1"))
mgmt_client1.shutdown()
def test_single_interest_repo_fetch(self):
"""Test simulation by requesting data from a repo using the fetch program lib and chunking"""
self.path = "/tmp/repo_unit_test"
try:
os.stat(self.path)
except:
os.mkdir(self.path)
with open(self.path + "/f1", 'w+') as content_file:
content_file.write("A" * 50000)
self.icn_forwarder2 = ICNDataRepository(self.path, Name("/test/data"), 0, log_level=255,
encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("icnfwd2")])
self.fetchtool = Fetch("icnfwd1", None, 255, encoder=self.encoder_type(), interfaces=[self.simulation_bus.add_interface("fetchtool")])
self.icn_forwarder1.start_forwarder()
self.icn_forwarder2.start_repo()
self.simulation_bus.start_process()
mgmt_client1 = MgmtClient(self.icn_forwarder1.mgmt.mgmt_sock.getsockname()[1])
mgmt_client1.add_face("icnfwd2", None, 0)
mgmt_client1.add_forwarding_rule(Name("/test"), [0])
res = self.fetchtool.fetch_data(Name("/test/data/f1"), 3)
self.assertEqual("A"*50000, res)
mgmt_client1.shutdown()
self.fetchtool.stop_fetch()
class cases_FetchNFN(object):
@abc.abstractmethod
def get_encoder(self):
"""get the packet encoder to be used"""
def setUp(self):
self.data1 = "data1"
self.data2 = 'a' * 5000
self.data3 = 'b' * 20000
self.path = "/tmp/repo_unit_test"
try:
os.stat(self.path)
except:
os.mkdir(self.path)
with open(self.path + "/d1", 'w+') as content_file:
content_file.write(self.data1)
with open(self.path + "/d2", 'w+') as content_file:
content_file.write(self.data2)
with open(self.path + "/d3", 'w+') as content_file:
content_file.write('b' * 20000)
self.ICNRepo: ICNDataRepository = ICNDataRepository("/tmp/repo_unit_test", Name("/test/data"), 0,
encoder=self.get_encoder(), log_level=255)
self.forwarder1: NFNForwarder = NFNForwarder(0, log_level=255, encoder=self.get_encoder())
self.forwarder2: NFNForwarder = NFNForwarder(0, log_level=255, encoder=self.get_encoder())
self.repo_port = self.ICNRepo.linklayer.interfaces[0].get_port()
self.fwd_port1 = self.forwarder1.linklayer.interfaces[0].get_port()
self.fwd_port2 = self.forwarder2.linklayer.interfaces[0].get_port()
self.fetch = Fetch("127.0.0.1", self.fwd_port1, encoder=self.get_encoder())
def add_face_and_forwadingrule(self):
#create new face
self.mgmtClient1 = MgmtClient(self.fwd_port1)
self.mgmtClient1.add_face("127.0.0.1", self.fwd_port2, 0)
self.mgmtClient1.add_forwarding_rule(Name("/lib"), [0])
self.mgmtClient1.add_face("127.0.0.1", self.repo_port, 0)
self.mgmtClient1.add_forwarding_rule(Name("/test"), [0])
self.mgmtClient2 = MgmtClient(self.fwd_port2)
self.mgmtClient2.add_face("127.0.0.1", self.repo_port, 0)
self.mgmtClient2.add_forwarding_rule(Name("/test"), [0])
def tearDown(self):
try:
shutil.rmtree(self.path)
os.remove(self.path)
except:
pass
try:
self.mgmtClient1.shutdown()
self.mgmtClient2.shutdown()
self.ICNRepo.stop_repo()
self.forwarder1.stop_forwarder()
self.forwarder2.stop_forwarder()
self.fetch.stop_fetch()
except:
pass
def test_fetch_single_data_from_repo_over_forwarder(self):
"""Test fetch data from repo over forwarder"""
self.ICNRepo.start_repo()
self.forwarder1.start_forwarder()
self.forwarder2.start_forwarder()
time.sleep(2)
self.add_face_and_forwadingrule()
time.sleep(5)
fetch_name = "/test/data/d1"
try:
content = None
while content is None or content == 'Received Nack: no forwarding rule':
content = self.fetch.fetch_data(fetch_name, timeout=20)
except:
self.fail
self.assertEqual(self.data1, content)
def test_fetch_chunked_data_from_repo_over_forwarder(self):
"""Test fetch chunked data from repo over forwarder"""
self.ICNRepo.start_repo()
self.forwarder1.start_forwarder()
self.forwarder2.start_forwarder()
time.sleep(2)
self.add_face_and_forwadingrule()
time.sleep(5)
fetch_name = "/test/data/d3"
content = None
while content is None or content == 'Received Nack: no forwarding rule':
content = self.fetch.fetch_data(fetch_name, timeout=20)
self.assertEqual(self.data3, content)
def test_compute_on_single_data_over_forwarder(self):
"""Test fetch result with single input data"""
self.ICNRepo.start_repo()
self.forwarder1.start_forwarder()
self.forwarder2.start_forwarder()
time.sleep(2)
self.add_face_and_forwadingrule()
time.sleep(5)
self.mgmtClient1.add_new_content(Name("/test/data/d1"), self.data1)
self.mgmtClient2.add_new_content(Name("/lib/func/f1"), "PYTHON\nf\ndef f(a):\n return a.upper()")
fetch_name = Name("/lib/func/f1")
fetch_name += "_(/test/data/d1)"
fetch_name += "NFN"
try:
content = None
while content is None or content == 'Received Nack: no forwarding rule':
content = self.fetch.fetch_data(fetch_name, timeout=20)
except:
self.fail()
self.assertEqual(self.data1.upper(), content)
def test_compute_on_single_data_over_forwarder_data_from_repo(self):
"""Test fetch result with single input data from repo"""
self.ICNRepo.start_repo()
self.forwarder1.start_forwarder()
self.forwarder2.start_forwarder()
time.sleep(2)
self.add_face_and_forwadingrule()
time.sleep(5)
self.mgmtClient2.add_new_content(Name("/lib/func/f1"), "PYTHON\nf\ndef f(a):\n return a.upper()")
fetch_name = Name("/lib/func/f1")
fetch_name += "_(/test/data/d1)"
fetch_name += "NFN"
try:
content = self.fetch.fetch_data(fetch_name, timeout=20)
except:
self.fail()
self.assertEqual(self.data1.upper(), content)
def test_compute_on_large_data_over_forwarder_data_from_repo(self):
"""Test fetch result with large input data from repo"""
self.ICNRepo.start_repo()
self.forwarder1.start_forwarder()
self.forwarder2.start_forwarder()
time.sleep(2)
self.add_face_and_forwadingrule()
time.sleep(5)
self.mgmtClient2.add_new_content(Name("/lib/func/f1"), "PYTHON\nf\ndef f(a):\n return a.upper()")
fetch_name = Name("/lib/func/f1")
fetch_name += "_(/test/data/d3)"
fetch_name += "NFN"
time.sleep(1)
content = None
try:
while content is None or content == 'Received Nack: no forwarding rule':
content = self.fetch.fetch_data(fetch_name, timeout=20)
except:
self.fail()
self.assertEqual(self.data3.upper(), content)
def test_compute_on_large_data_over_forwarder_data_from_repo_to_data_prefix(self):
"""Test fetch result with large input data from repo with a to data prefix"""
self.ICNRepo.start_repo()
self.forwarder1.start_forwarder()
self.forwarder2.start_forwarder()
time.sleep(2)
self.add_face_and_forwadingrule()
time.sleep(5)
self.mgmtClient2.add_new_content(Name("/lib/func/f1"), "PYTHON\nf\ndef f(a):\n return a.upper()")
fetch_name = Name("/test/data/d3")
fetch_name += "/lib/func/f1(_)"
fetch_name += "NFN"
time.sleep(1)
content = None
try:
while content is None or content == 'Received Nack: no forwarding rule':
content = self.fetch.fetch_data(fetch_name, timeout=20)
except:
self.fail()
self.assertEqual(self.data3.upper(), content)
def test_fetch_single_data_from_repo_over_forwarder_native_code(self):
"""Test fetch data from repo over forwarder using native code"""
if platform.system() != 'Darwin':
self.skipTest("Test only for OSX available")
execs = {"PYTHON": NFNPythonExecutor(), "x86": x86Executor()}
self.forwarder1 = NFNForwarder(0, log_level=255, encoder=self.get_encoder(), executors=execs)
self.fwd_port1 = self.forwarder1.linklayer.interfaces[0].get_port()
self.fetch = Fetch("127.0.0.1", self.fwd_port1, encoder=self.get_encoder())
self.ICNRepo.start_repo()
self.forwarder1.start_forwarder()
self.forwarder2.start_forwarder()
time.sleep(2)
self.add_face_and_forwadingrule()
nfnfile = open('NFN-x86-file-osx', 'r')
content_obj = nfnfile.read()
self.forwarder1.icnlayer.cs.add_content_object(Content("/func/native/test", content_obj))
#self.mgmtClient1.add_new_content(Name("/func/native/test"), content_obj)
time.sleep(5)
fetch_name = Name("/func/native/test")
fetch_name += '_("hello")'
fetch_name += 'NFN'
try:
content = None
while content is None or content == 'Received Nack: no forwarding rule':
content = self.fetch.fetch_data(fetch_name, timeout=20)
except:
self.fail
self.assertEqual("5", content)
class MapReduceSimulation(unittest.TestCase):
"""Simulate a Map Reduce Scenario where timeout prevention is required."""
@abc.abstractmethod
def get_encoder(self) -> BasicEncoder:
return SimpleStringEncoder
def setUp(self):
self.encoder_type = self.get_encoder()
self.simulation_bus = SimulationBus(packetencoder=self.encoder_type())
self.fetch_tool1 = Fetch(
"nfn0",
None,
255,
self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("fetchtool1")])
self.nfn0 = NFNForwarder(
port=0,
encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("nfn0")],
log_level=255,
ageing_interval=1)
self.nfn1 = NFNForwarder(
port=0,
encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("nfn1")],
log_level=255,
ageing_interval=1)
self.nfn2 = NFNForwarder(
port=0,
encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("nfn2")],
log_level=255,
ageing_interval=1)
self.nfn3 = NFNForwarder(
port=0,
encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("nfn3")],
log_level=255,
ageing_interval=1)
self.nfn4 = NFNForwarder(
port=0,
encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("nfn4")],
log_level=255,
ageing_interval=1)
self.repo1 = ICNDataRepository(
"/tmp/repo1", Name("/repo/r1"), 0, 255, self.encoder_type(), False,
False, [self.simulation_bus.add_interface("repo1")])
self.repo2 = ICNDataRepository(
"/tmp/repo2", Name("/repo/r2"), 0, 255, self.encoder_type(), False,
False, [self.simulation_bus.add_interface("repo2")])
self.repo3 = ICNDataRepository(
"/tmp/repo3", Name("/repo/r3"), 0, 255, self.encoder_type(), False,
False, [self.simulation_bus.add_interface("repo3")])
self.repo4 = ICNDataRepository(
"/tmp/repo4", Name("/repo/r4"), 0, 255, self.encoder_type(), False,
False, [self.simulation_bus.add_interface("repo4")])
self.nfn1.icnlayer.pit.set_pit_timeout(0)
self.nfn1.icnlayer.cs.set_cs_timeout(30)
self.nfn2.icnlayer.pit.set_pit_timeout(0)
self.nfn2.icnlayer.cs.set_cs_timeout(30)
self.nfn3.icnlayer.pit.set_pit_timeout(0)
self.nfn3.icnlayer.cs.set_cs_timeout(30)
self.nfn4.icnlayer.pit.set_pit_timeout(0)
self.nfn4.icnlayer.cs.set_cs_timeout(30)
self.nfn0.nfnlayer.optimizer = MapReduceOptimizer(
self.nfn0.icnlayer.cs, self.nfn0.icnlayer.fib,
self.nfn0.icnlayer.pit, self.nfn0.linklayer.faceidtable)
self.nfn1.nfnlayer.optimizer = MapReduceOptimizer(
self.nfn1.icnlayer.cs, self.nfn1.icnlayer.fib,
self.nfn1.icnlayer.pit, self.nfn1.linklayer.faceidtable)
self.nfn2.nfnlayer.optimizer = MapReduceOptimizer(
self.nfn2.icnlayer.cs, self.nfn2.icnlayer.fib,
self.nfn2.icnlayer.pit, self.nfn2.linklayer.faceidtable)
self.nfn3.nfnlayer.optimizer = MapReduceOptimizer(
self.nfn3.icnlayer.cs, self.nfn3.icnlayer.fib,
self.nfn3.icnlayer.pit, self.nfn3.linklayer.faceidtable)
self.nfn4.nfnlayer.optimizer = MapReduceOptimizer(
self.nfn4.icnlayer.cs, self.nfn4.icnlayer.fib,
self.nfn4.icnlayer.pit, self.nfn4.linklayer.faceidtable)
self.mgmt_client0 = MgmtClient(
self.nfn0.mgmt.mgmt_sock.getsockname()[1])
self.mgmt_client1 = MgmtClient(
self.nfn1.mgmt.mgmt_sock.getsockname()[1])
self.mgmt_client2 = MgmtClient(
self.nfn2.mgmt.mgmt_sock.getsockname()[1])
self.mgmt_client3 = MgmtClient(
self.nfn3.mgmt.mgmt_sock.getsockname()[1])
self.mgmt_client4 = MgmtClient(
self.nfn4.mgmt.mgmt_sock.getsockname()[1])
def tearDown(self):
self.nfn0.stop_forwarder()
self.nfn1.stop_forwarder()
self.nfn2.stop_forwarder()
self.nfn3.stop_forwarder()
self.nfn4.stop_forwarder()
self.repo1.stop_repo()
self.repo2.stop_repo()
self.repo3.stop_repo()
self.repo4.stop_repo()
self.fetch_tool1.stop_fetch()
self.simulation_bus.stop_process()
self.tearDown_repo()
def setup_faces_and_connections(self):
self.nfn0.start_forwarder()
self.nfn1.start_forwarder()
self.nfn2.start_forwarder()
self.nfn3.start_forwarder()
self.nfn4.start_forwarder()
self.repo1.start_repo()
self.repo2.start_repo()
self.repo3.start_repo()
self.repo4.start_repo()
self.simulation_bus.start_process()
time.sleep(3)
# setup forwarding rules
self.mgmt_client0.add_face("nfn1", None, 0)
self.mgmt_client0.add_forwarding_rule(Name("/lib/func1"), [0])
self.mgmt_client0.add_face("nfn2", None, 0)
self.mgmt_client0.add_forwarding_rule(Name("/lib/func2"), [1])
self.mgmt_client0.add_face("nfn3", None, 0)
self.mgmt_client0.add_forwarding_rule(Name("/lib/func3"), [2])
self.mgmt_client0.add_face("nfn4", None, 0)
self.mgmt_client0.add_forwarding_rule(Name("/lib/func4"), [3])
self.mgmt_client1.add_face("repo1", None, 0)
self.mgmt_client1.add_forwarding_rule(Name("/repo/r1"), [0])
self.mgmt_client2.add_face("repo2", None, 0)
self.mgmt_client2.add_forwarding_rule(Name("/repo/r2"), [0])
self.mgmt_client3.add_face("repo3", None, 0)
self.mgmt_client3.add_forwarding_rule(Name("/repo/r3"), [0])
self.mgmt_client4.add_face("repo4", None, 0)
self.mgmt_client4.add_forwarding_rule(Name("/repo/r4"), [0])
self.mgmt_client1.add_face("nfn0", None, 0)
self.mgmt_client1.add_forwarding_rule(Name("/lib"), [1])
#setup function code
self.mgmt_client0.add_new_content(
Name("/lib/reduce4"),
"PYTHON\nreduce4\ndef reduce4(a,b,c,d):\n return a+b+c+d")
self.mgmt_client1.add_new_content(
Name("/lib/func1"),
"PYTHON\nf\ndef f(a):\n for i in range(0,100000000):\n a.upper()\n return a.upper()"
)
self.mgmt_client2.add_new_content(
Name("/lib/func2"),
"PYTHON\nf\ndef f(a):\n for i in range(0,100000000):\n a.upper()\n return a.upper()"
)
self.mgmt_client3.add_new_content(
Name("/lib/func3"),
"PYTHON\nf\ndef f(a):\n for i in range(0,100000000):\n a.upper()\n return a.upper()"
)
self.mgmt_client4.add_new_content(
Name("/lib/func4"),
"PYTHON\nf\ndef f(a):\n for i in range(0,100000000):\n a.upper()\n return a.upper()"
)
def setup_repo(self):
for i in range(1, 5):
self.path = "/tmp/repo" + str(i)
try:
os.stat(self.path)
except:
os.mkdir(self.path)
with open(self.path + "/data" + str(i), 'w+') as content_file:
content_file.write("data" + str(i))
def tearDown_repo(self):
try:
shutil.rmtree(self.path)
os.remove("/tmp/repo")
except:
pass
def test_simple_map_reduce(self):
"""Simple map reduce test with input data as string parameter"""
self.setup_faces_and_connections()
name = Name("/lib/reduce4")
name += '_(/lib/func1("helloworld1"),/lib/func2("helloworld2"),/lib/func3("helloworld3"),/lib/func4("helloworld4"))'
name += "NFN"
res = self.fetch_tool1.fetch_data(name, timeout=0)
time.sleep(3)
print(res)
self.assertEqual("HELLOWORLD1HELLOWORLD2HELLOWORLD3HELLOWORLD4", res)
def test_simple_map_reduce_data_from_repo(self):
"""Simple map reduce test with input data from repo"""
self.setup_repo()
self.setup_faces_and_connections()
name = Name("/lib/reduce4")
name += '_(/lib/func1(/repo/r1/data1),/lib/func2(/repo/r2/data2),/lib/func3(/repo/r3/data3),/lib/func4(/repo/r4/data4))'
name += "NFN"
res = self.fetch_tool1.fetch_data(name, timeout=0)
time.sleep(3)
print(res)
self.assertEqual("DATA1DATA2DATA3DATA4", res)
def test_simple_map_reduce_data_from_repo_to_data(self):
"""Simple map reduce test with input data from repo forwarding to data"""
self.setup_repo()
self.setup_faces_and_connections()
name = Name("/repo/r1/data1")
name += '/lib/reduce4(/lib/func1(_),/lib/func2(/repo/r2/data2),/lib/func3(/repo/r3/data3),/lib/func4(/repo/r4/data4))'
name += "NFN"
res = self.fetch_tool1.fetch_data(name, timeout=0)
time.sleep(3)
print(res)
self.assertEqual("DATA1DATA2DATA3DATA4", res)
class EdgeComputingSimpleSimulation1(unittest.TestCase):
"""run the simple Edge Computing Scenario Simulation"""
@abc.abstractmethod
def get_encoder(self) -> BasicEncoder:
return SimpleStringEncoder
def setUp(self):
self.encoder_type = self.get_encoder()
self.simulation_bus = SimulationBus(packetencoder=self.encoder_type())
self.fetch_tool1 = Fetch(
"rsu1",
None,
255,
self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("fetchtool1")])
self.fetch_tool2 = Fetch(
"rsu2",
None,
255,
self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("fetchtool2")])
self.fetch_tool3 = Fetch(
"rsu3",
None,
255,
self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("fetchtool3")])
self.rsu1 = NFNForwarder(
port=0,
encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("rsu1")],
log_level=255,
ageing_interval=1)
self.rsu2 = NFNForwarder(
port=0,
encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("rsu2")],
log_level=255,
ageing_interval=1)
self.rsu3 = NFNForwarder(
port=0,
encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("rsu3")],
log_level=255,
ageing_interval=1)
self.rsu1.icnlayer.pit.set_pit_timeout(0)
self.rsu1.icnlayer.cs.set_cs_timeout(30)
self.rsu2.icnlayer.pit.set_pit_timeout(0)
self.rsu2.icnlayer.cs.set_cs_timeout(30)
self.rsu3.icnlayer.pit.set_pit_timeout(0)
self.rsu3.icnlayer.cs.set_cs_timeout(30)
self.rsu1.nfnlayer.optimizer = EdgeComputingOptimizer(
self.rsu1.icnlayer.cs, self.rsu1.icnlayer.fib,
self.rsu1.icnlayer.pit, self.rsu1.linklayer.faceidtable)
self.rsu2.nfnlayer.optimizer = EdgeComputingOptimizer(
self.rsu2.icnlayer.cs, self.rsu2.icnlayer.fib,
self.rsu2.icnlayer.pit, self.rsu2.linklayer.faceidtable)
self.rsu3.nfnlayer.optimizer = EdgeComputingOptimizer(
self.rsu3.icnlayer.cs, self.rsu3.icnlayer.fib,
self.rsu3.icnlayer.pit, self.rsu3.linklayer.faceidtable)
self.mgmt_client1 = MgmtClient(
self.rsu1.mgmt.mgmt_sock.getsockname()[1])
self.mgmt_client2 = MgmtClient(
self.rsu2.mgmt.mgmt_sock.getsockname()[1])
self.mgmt_client3 = MgmtClient(
self.rsu3.mgmt.mgmt_sock.getsockname()[1])
def tearDown(self):
self.rsu1.stop_forwarder()
self.rsu2.stop_forwarder()
self.rsu3.stop_forwarder()
self.fetch_tool1.stop_fetch()
self.fetch_tool2.stop_fetch()
self.fetch_tool3.stop_fetch()
self.simulation_bus.stop_process()
def setup_faces_and_connections(self):
self.rsu1.start_forwarder()
self.rsu2.start_forwarder()
self.rsu3.start_forwarder()
self.simulation_bus.start_process()
#setup rsu1
self.mgmt_client1.add_face("rsu2", None, 0)
self.mgmt_client1.add_forwarding_rule(Name("/rsu"), [0])
self.mgmt_client1.add_new_content(
Name("/rsu/func/f1"),
"PYTHON\nf\ndef f(a):\n for i in range(0,20000000):\n a.upper()\n return a.upper() + ' RSU1'"
)
#setup rsu2
self.mgmt_client2.add_face("rsu1", None, 0)
self.mgmt_client2.add_face("rsu3", None, 0)
self.mgmt_client2.add_forwarding_rule(Name("/rsu"), [0, 1])
self.mgmt_client2.add_new_content(
Name("/rsu/func/f1"),
"PYTHON\nf\ndef f(a):\n for i in range(0,30000000):\n a.upper()\n return a.upper() + ' RSU2'"
)
#setup rsu3
self.mgmt_client3.add_face("rsu2", None, 0)
self.mgmt_client3.add_forwarding_rule(Name("/rsu"), [0])
self.mgmt_client3.add_new_content(
Name("/rsu/func/f1"),
"PYTHON\nf\ndef f(a):\n for i in range(0,40000000):\n a.upper()\n return a.upper() + ' RSU3'"
)
def test_without_data_from_client(self):
"""execute a simple function on the rsus"""
self.setup_faces_and_connections()
name = Name("/rsu/func/f1")
name += '_("helloworld")'
name += "NFN"
res = self.fetch_tool1.fetch_data(name, timeout=5)
self.assertEqual(res, "HELLOWORLD RSU1")
print("Result at RSU1:", res)
time.sleep(5)
res = self.fetch_tool2.fetch_data(name, timeout=5)
print("Result as fetched via RSU2:", res)
self.assertEqual(res, "HELLOWORLD RSU1")
def test_inner_call_without_data_from_client(self):
"""execute one function on the first node and another function on the second node"""
self.setup_faces_and_connections()
self.mgmt_client2.add_new_content(
Name("/rsu/func/f2"), "PYTHON\nf\ndef f(a):\n return a[::-1]")
name1 = Name("/rsu/func/f1")
name1 += '_("helloworld")'
name1 += "NFN"
name2 = Name("/rsu/func/f2")
name2 += '_(/rsu/func/f1("helloworld"))'
name2 += "NFN"
res1 = self.fetch_tool1.fetch_data(name1, timeout=20)
print(res1)
time.sleep(6)
res2 = self.fetch_tool2.fetch_data(name2, timeout=20)
print(res2)
def test_result_placement_using_names(self):
"""execute one function on a node where the client will be, when the computation is finished"""
self.setup_faces_and_connections()
self.mgmt_client3.add_new_content(
Name("/rsu/id3/func/f2"),
"PYTHON\nf\ndef f(a):\n for i in range(0,20000000):\n a.upper()\n return a.upper() + ' PLACED ON RSU3'"
)
name1 = Name("/rsu/id3/func/f2")
name1 += '_("helloworld")'
name1 += "NFN"
res1 = self.fetch_tool1.fetch_data(name1, timeout=10)
print(res1)
res2 = self.fetch_tool3.fetch_data(name1, timeout=10)
print(res2)
class TimeoutPreventionSimulation(unittest.TestCase):
"""Simulate a Scenario where timeout prevention is required"""
@abc.abstractmethod
def get_encoder(self) -> BasicEncoder:
return SimpleStringEncoder
def setUp(self):
self.encoder_type = self.get_encoder()
self.simulation_bus = SimulationBus(packetencoder=self.encoder_type())
self.fetch_tool1 = Fetch(
"nfn1",
None,
255,
self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("fetchtool1")])
self.nfn1 = NFNForwarder(
port=0,
encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("nfn1")],
log_level=255,
ageing_interval=1)
self.nfn2 = NFNForwarder(
port=0,
encoder=self.encoder_type(),
interfaces=[self.simulation_bus.add_interface("nfn2")],
log_level=255,
ageing_interval=1)
self.simulation_bus.add_interface("deadend")
self.nfn1.icnlayer.pit.set_pit_timeout(0)
self.nfn1.icnlayer.cs.set_cs_timeout(30)
self.nfn2.icnlayer.pit.set_pit_timeout(0)
self.nfn2.icnlayer.cs.set_cs_timeout(30)
self.nfn1.nfnlayer.optimizer = ToDataFirstOptimizer(
self.nfn1.icnlayer.cs, self.nfn1.icnlayer.fib,
self.nfn1.icnlayer.pit, self.nfn1.linklayer.faceidtable)
self.nfn2.nfnlayer.optimizer = ToDataFirstOptimizer(
self.nfn2.icnlayer.cs, self.nfn2.icnlayer.fib,
self.nfn2.icnlayer.pit, self.nfn2.linklayer.faceidtable)
self.mgmt_client1 = MgmtClient(
self.nfn1.mgmt.mgmt_sock.getsockname()[1])
self.mgmt_client2 = MgmtClient(
self.nfn2.mgmt.mgmt_sock.getsockname()[1])
def tearDown(self):
self.nfn1.stop_forwarder()
self.nfn2.stop_forwarder()
self.fetch_tool1.stop_fetch()
self.simulation_bus.stop_process()
def setup_faces_and_connections(self):
self.nfn1.start_forwarder()
self.nfn2.start_forwarder()
self.simulation_bus.start_process()
# setup nfn1
self.mgmt_client1.add_face("nfn2", None, 0)
self.mgmt_client1.add_forwarding_rule(Name("/lib"), [0])
self.mgmt_client1.add_new_content(Name("/test/data/string"),
"This is a String")
# setup nfn2
self.mgmt_client1.add_face("nfn1", None, 0)
self.mgmt_client1.add_forwarding_rule(Name("/test"), [0])
self.mgmt_client2.add_new_content(
Name("/lib/func/f1"),
"PYTHON\nf\ndef f(a):\n for i in range(0,100000000):\n a.upper()\n return a.upper() + ' WITHOUT TIMEOUT'"
)
def test_simple_timeout_prevention(self):
"""Simple test to see if timeout prevention works"""
self.setup_faces_and_connections()
name = Name("/lib/func/f1")
name += '_("helloworld")'
name += "NFN"
res = self.fetch_tool1.fetch_data(name, timeout=0)
time.sleep(3)
self.assertEqual("HELLOWORLD WITHOUT TIMEOUT", res)
print(res)
def test_timeout_prevention_if_no_comp(self):
"""Simple test to see if timeout prevention works if no computation is available and no fwd rule"""
self.setup_faces_and_connections()
name = Name("/lib/func/f2")
name += '_("helloworld")'
name += "NFN"
res = self.fetch_tool1.fetch_data(name, timeout=0)
self.assertEqual(
"Received Nack: one or many input data (function or data) is unavailable",
res)
time.sleep(3)
print(res)
def test_timeout_prevention_if_no_comp_no_data_fwd(self):
"""Simple test to see if timeout prevention works if no computation is available and no data are replied"""
self.setup_faces_and_connections()
name = Name("/lib/func/f2")
name += '_("helloworld")'
name += "NFN"
self.mgmt_client2.add_face("deadend", None, 0)
self.mgmt_client2.add_forwarding_rule(Name("/lib"), [0])
res = self.fetch_tool1.fetch_data(name, timeout=0)
self.assertEqual(
"Received Nack: one or many input data (function or data) is unavailable",
res)
time.sleep(3)
print(res)
fetch_tool = Fetch("nfn0",
None,
255,
NdnTlvEncoder(),
interfaces=[simulation_bus.add_interface("fetchtool1")])
nfn_fwd0.start_forwarder()
nfn_fwd1.start_forwarder()
simulation_bus.start_process()
mgmt_client0.add_face("nfn1", None, 0)
mgmt_client0.add_forwarding_rule(Name("/data"), [0])
mgmt_client0.add_new_content(
Name("/func/combine"), "PYTHON\nfunc\ndef func(a, b):\n return a + b")
mgmt_client1.add_new_content(Name("/data/obj1"), "World")
name = Name("/func/combine")
name += '_("Hello",/data/obj1)'
name += "NFN"
res = fetch_tool.fetch_data(name, timeout=20)
print(res)
nfn_fwd0.stop_forwarder()
nfn_fwd1.stop_forwarder()
fetch_tool.stop_fetch()
simulation_bus.stop_process()
mgmt_client0.shutdown()
mgmt_client1.shutdown()
class cases_Fetch(object):
@abc.abstractmethod
def get_encoder(self):
"""get the packet encoder to be used"""
def setUp(self):
self.data1 = "data1"
self.data2 = 'A' * 5000
self.data3 = 'B' * 20000
self.path = "/tmp/repo_unit_test"
try:
os.stat(self.path)
except:
os.mkdir(self.path)
with open(self.path + "/f1", 'w+') as content_file:
content_file.write(self.data1)
with open(self.path + "/f2", 'w+') as content_file:
content_file.write(self.data2)
with open(self.path + "/f3", 'w+') as content_file:
content_file.write('B' * 20000)
self.ICNRepo: ICNDataRepository = ICNDataRepository("/tmp/repo_unit_test", Name("/test/data"), port=0,
encoder=self.get_encoder(), log_level=255)
self.forwarder: ICNForwarder = ICNForwarder(port=0, encoder=self.get_encoder(), log_level=255)
self.repo_port = self.ICNRepo.linklayer.interfaces[0].get_port()
self.forwarder_port = self.forwarder.linklayer.interfaces[0].get_port()
self.fetch = Fetch("127.0.0.1", self.forwarder_port, encoder=self.get_encoder())
def add_face_and_forwadingrule(self):
#create new face
self.mgmtClient = MgmtClient(self.forwarder_port)
self.mgmtClient.add_face("127.0.0.1", self.repo_port, 0)
self.mgmtClient.add_forwarding_rule(Name("/test"), faceid=[0])
def tearDown(self):
try:
shutil.rmtree(self.path)
os.remove(self.path)
except:
pass
self.mgmtClient.shutdown()
self.ICNRepo.stop_repo()
self.forwarder.stop_forwarder()
self.fetch.stop_fetch()
time.sleep(0.5)
def test_fetch_single_data_over_forwarder(self):
"""Test fetching a single data object over a forwarder without chunking"""
self.ICNRepo.start_repo()
self.forwarder.start_forwarder()
time.sleep(0.1)
self.add_face_and_forwadingrule()
content = self.fetch.fetch_data(Name("/test/data/f1"))
self.assertEqual(content, self.data1)
def test_fetch_small_data_over_forwarder(self):
"""Test fetching a small data object over a forwarder with little chunking"""
self.ICNRepo.start_repo()
self.forwarder.start_forwarder()
time.sleep(0.1)
self.add_face_and_forwadingrule()
content = self.fetch.fetch_data(Name("/test/data/f2"))
self.assertEqual(content, self.data2)
def test_fetch_large_data_over_forwarder(self):
"""Test fetching a large data object over a forwarder with more chunking"""
self.ICNRepo.start_repo()
self.forwarder.start_forwarder()
time.sleep(0.1)
self.add_face_and_forwadingrule()
content = self.fetch.fetch_data(Name("/test/data/f3"))
self.assertEqual(content, self.data3)
def test_fetching_content_from_second_repo_after_nack(self):
"""Test sending an interest to forwarder with no matching content, choose second route to fetch content"""
self.forwarder2: ICNForwarder = ICNForwarder(0, encoder=self.get_encoder(), log_level=255)
self.ICNRepo.start_repo()
self.forwarder.start_forwarder()
self.forwarder2.start_forwarder()
#check for nack on first route
self.mgmtClient = MgmtClient(self.forwarder_port)
self.mgmtClient.add_face("127.0.0.1", self.forwarder2.linklayer.interfaces[0].get_port(), 0)
data = self.mgmtClient.add_forwarding_rule(Name("/test/data"), [0])
nack = self.fetch.fetch_data(Name("/test/data/f3"))
self.assertEqual(nack, "Received Nack: " + NackReason.NO_ROUTE.value)
time.sleep(0.1)
#install second forwarding rule and check for result.
data = self.mgmtClient.add_face("127.0.0.1", self.repo_port, 0)
self.mgmtClient.add_forwarding_rule(Name("/test"), [2])
time.sleep(0.1)
fetch2 = Fetch("127.0.0.1", self.forwarder_port)
content = self.fetch.fetch_data(Name("/test/data/f3"))
self.assertEqual(content, self.data3)
self.forwarder2.stop_forwarder()
def test_fetching_a_lot_of_packets(self):
"""sending a lot of packets using a forwarder and chunking"""
self.ICNRepo.start_repo()
self.forwarder.start_forwarder()
self.add_face_and_forwadingrule()
self.path = "/tmp/repo_unit_test"
try:
os.stat(self.path)
except:
os.mkdir(self.path)
for i in range(1,10):
name = "/f" + str(i)
with open(self.path + name, 'w+') as content_file:
content_file.write(self.data3)
time.sleep(2)
for i in range(1,10):
fname = "/f" + str(i)
icn_name = "/test/data" + name
content = self.fetch.fetch_data(Name(icn_name), timeout=10)
self.assertEqual(content, self.data3)
def simulation(classic, amount_of_parts):
generateExampleFiles("../InputFiles/exampleInputFile", amount_of_parts)
simulation_bus = SimulationBus(packetencoder=NdnTlvEncoder())
nfn_fwd0 = NFNForwarder(
port=0,
encoder=NdnTlvEncoder(),
interfaces=[simulation_bus.add_interface("nfn0")],
log_level=255,
executors={"PYTHONSTREAM": NFNPythonExecutorStreaming()},
ageing_interval=1)
nfn_fwd0.executors["PYTHONSTREAM"].initialize_executor(
nfn_fwd0.nfnlayer.queue_to_lower, nfn_fwd0.nfnlayer.queue_from_lower,
nfn_fwd0.nfnlayer.cs, classic)
nfn_fwd0.icnlayer.pit.ageing = ageing
nfn_fwd0.timeoutpreventionlayer.ageing = ageing
nfn_fwd1 = NFNForwarder(
port=0,
encoder=NdnTlvEncoder(),
interfaces=[simulation_bus.add_interface("nfn1")],
log_level=255,
executors={"PYTHONSTREAM": NFNPythonExecutorStreaming()},
ageing_interval=1)
nfn_fwd1.executors["PYTHONSTREAM"].initialize_executor(
nfn_fwd1.nfnlayer.queue_to_lower, nfn_fwd1.nfnlayer.queue_from_lower,
nfn_fwd1.nfnlayer.cs, classic)
nfn_fwd1.icnlayer.pit.ageing = ageing
nfn_fwd1.timeoutpreventionlayer.ageing = ageing
nfn_fwd2 = NFNForwarder(
port=0,
encoder=NdnTlvEncoder(),
interfaces=[simulation_bus.add_interface("nfn2")],
log_level=255,
executors={"PYTHONSTREAM": NFNPythonExecutorStreaming()},
ageing_interval=1)
nfn_fwd2.executors["PYTHONSTREAM"].initialize_executor(
nfn_fwd2.nfnlayer.queue_to_lower, nfn_fwd2.nfnlayer.queue_from_lower,
nfn_fwd2.nfnlayer.cs, classic)
nfn_fwd2.icnlayer.pit.ageing = ageing
nfn_fwd2.timeoutpreventionlayer.ageing = ageing
repo = ICNDataRepository("../InputFiles",
Name("/repo/r1"),
0,
255,
NdnTlvEncoder(),
False,
False,
interfaces=[simulation_bus.add_interface("repo")])
repo.start_repo()
mgmt_client0 = MgmtClient(nfn_fwd0.mgmt.mgmt_sock.getsockname()[1])
mgmt_client1 = MgmtClient(nfn_fwd1.mgmt.mgmt_sock.getsockname()[1])
mgmt_client2 = MgmtClient(nfn_fwd2.mgmt.mgmt_sock.getsockname()[1])
fetch_tool = Fetch("nfn0",
None,
255,
NdnTlvEncoder(),
interfaces=[simulation_bus.add_interface("fetchtoo1")])
nfn_fwd0.start_forwarder()
nfn_fwd1.start_forwarder()
nfn_fwd2.start_forwarder()
simulation_bus.start_process()
mgmt_client0.add_face("nfn1", None, 0)
mgmt_client0.add_forwarding_rule(Name("/lib"), [0])
mgmt_client1.add_face("nfn2", None, 0)
mgmt_client1.add_forwarding_rule(Name("/lib"), [0])
mgmt_client2.add_face("repo", None, 0)
mgmt_client2.add_forwarding_rule(Name("/repo/r1"), [0])
mgmt_client0.add_new_content(
Name("/lib/node0"),
"PYTHONSTREAM\ngetnext_on_writeout\ndef getnext_on_writeout(arg):\n print('Start dritte')\n res = ''\n a = get_next(arg)\n while a != None:\n res = res + a\n a = get_next(arg)\n print('Ende dritte')\n return res"
)
mgmt_client1.add_new_content(
Name("/lib/node1"),
"PYTHONSTREAM\nwriteout_on_getnext\ndef writeout_on_getnext(arg):\n print('Start zweite')\n a = get_next(arg)\n while a and check_end_streaming(a) is False:\n a = a.upper()\n sleep(1)\n write_out(a)\n a = get_next(arg)\n last_write_out()\n return print('Ende zweite')\n"
)
mgmt_client2.add_new_content(
Name("/lib/node2"),
"PYTHONSTREAM\nwriteout_on_getnext\ndef writeout_on_getnext(arg):\n print('Start erste')\n write_out_on_get_next(arg)\n return print('Ende erste')\n"
)
scenario_node_2 = Name("/lib/node2")
scenario_node_2 += "#(=/repo/r1/exampleInputFile=)"
scenario_node_2 += "NFN"
scenario_node_1 = Name("/lib/node1")
scenario_node_1 += "#(=" + str(scenario_node_2) + "=)"
scenario_node_1 += "NFN"
scenario_node_0 = Name("/lib/node0")
scenario_node_0 += '_("' + str(scenario_node_1) + '")'
scenario_node_0 += "NFN"
start_time = time.perf_counter()
res = fetch_tool.fetch_data(scenario_node_0, timeout=60)
end_time = time.perf_counter()
time_needed = end_time - start_time
if res.startswith("CONTENT OF NAME"):
print("Time:", time_needed, res)
return time_needed
else:
print("Something went wrong")
None
class cases_ICNDataRepository(object):
"""Test the ICN Data Repository using fetch"""
@abc.abstractmethod
def get_encoder(self):
"""returns the encoder to be used """
def setUp(self):
self.data1 = "data1"
self.data2 = 'A' * 5000
self.data3 = 'B' * 20000
self.encoder = self.get_encoder()
self.path = "/tmp/repo_unit_test"
try:
os.stat(self.path)
except:
os.mkdir(self.path)
with open(self.path + "/f1", 'w+') as content_file:
content_file.write(self.data1)
with open(self.path + "/f2", 'w+') as content_file:
content_file.write(self.data2)
with open(self.path + "/f3", 'w+') as content_file:
content_file.write('B' * 20000)
self.ICNRepo: ICNDataRepository = ICNDataRepository(
"/tmp/repo_unit_test",
Name("/test/data"),
0,
encoder=self.get_encoder(),
log_level=255)
self.repo_port = self.ICNRepo.linklayer.interfaces[0].get_port()
self.fetch = Fetch("127.0.0.1",
self.repo_port,
encoder=self.get_encoder())
def tearDown(self):
try:
shutil.rmtree(self.path)
os.remove("/tmp/repo_unit_test")
except:
pass
self.ICNRepo.stop_repo()
self.fetch.stop_fetch()
def test_fetch_single_data(self):
"""Test fetching a single data object without chunking"""
self.ICNRepo.start_repo()
content = self.fetch.fetch_data(Name("/test/data/f1"))
self.assertEqual(content, self.data1)
def test_fetch_small_data(self):
"""Test fetching a small data object with little chunking"""
self.ICNRepo.start_repo()
content = self.fetch.fetch_data(Name("/test/data/f2"))
self.assertEqual(content, self.data2)
def test_fetch_big_data(self):
"""Test fetching a big data object with lot of chunking"""
self.ICNRepo.start_repo()
content = self.fetch.fetch_data(Name("/test/data/f3"))
self.assertEqual(content, self.data3)
def test_fetch_nack(self):
"""Test fetching content which is not available and get nack"""
self.ICNRepo.start_repo()
content = self.fetch.fetch_data(Name("/test/data/f4"))
self.assertEqual(content,
"Received Nack: " + NackReason.NO_CONTENT.value)
class test_RoutingLayerFullStack(unittest.TestCase):
def setUp(self):
self.f9000 = ICNForwarder(9000, encoder=NdnTlvEncoder(), routing=True,
peers=[('127.0.0.1', 9001), ('127.0.0.1', 9002), ('127.0.0.1', 9090)])
self.f9001 = ICNForwarder(9001, encoder=NdnTlvEncoder(), routing=True,
peers=[('127.0.0.1', 9000), ('127.0.0.1', 9002), ('127.0.0.1', 9003),
('127.0.0.1', 9004)])
self.f9002 = ICNForwarder(9002, encoder=NdnTlvEncoder(), routing=True,
peers=[('127.0.0.1', 9000), ('127.0.0.1', 9001), ('127.0.0.1', 9004)])
self.f9003 = ICNForwarder(9003, encoder=NdnTlvEncoder(), routing=True,
peers=[('127.0.0.1', 9001), ('127.0.0.1', 9004)])
self.f9004 = ICNForwarder(9004, encoder=NdnTlvEncoder(), routing=True,
peers=[('127.0.0.1', 9001), ('127.0.0.1', 9002), ('127.0.0.1', 9003)])
os.makedirs('/tmp/test_repo', exist_ok=True)
f = open('/tmp/test_repo/helloworld', 'w')
f.write('Hello, World!\n')
f.close()
self.repo = ICNDataRepository('/tmp/test_repo', Name('/testrepo'), port=9090, encoder=NdnTlvEncoder())
self.fetch = Fetch('127.0.0.1', 9004, encoder=NdnTlvEncoder())
# Create RIB entry for the repository (with Python weirdness)
repo_fid: int = self.f9000.linklayer.faceidtable.get_or_create_faceid(AddressInfo(('127.0.0.1', 9090), 0))
rib: BaseRoutingInformationBase = self.f9000.routinglayer.rib
rib.insert(Name('/testrepo'), repo_fid, distance=1, timeout=None)
def tearDown(self):
self.f9000.stop_forwarder()
self.f9001.stop_forwarder()
self.f9002.stop_forwarder()
self.f9003.stop_forwarder()
self.f9004.stop_forwarder()
self.repo.stop_repo()
self.fetch.stop_fetch()
shutil.rmtree('/tmp/test_repo')
def test_network(self):
"""
C
|
F[9004] -- F[9003]
/ \ /
/ \ /
/ \ /
F[9002] -- F[9001]
\ /
\ /
\ /
F[9000]
|
R
"""
self.f9000.start_forwarder()
self.f9001.start_forwarder()
self.f9002.start_forwarder()
self.f9003.start_forwarder()
self.f9004.start_forwarder()
self.repo.start_repo()
hw: str = ''
until = datetime.utcnow() + timedelta(seconds=20)
while hw != 'Hello, World!\n' and datetime.utcnow() < until:
try:
hw = self.fetch.fetch_data(Name('/testrepo/helloworld'), timeout=1.0)
except queue.Empty:
pass
self.assertEqual('Hello, World!\n', hw)
until = datetime.utcnow() + timedelta(seconds=20)
hw = ''
start = datetime.utcnow()
end = start
while hw != 'Hello, World!\n' and datetime.utcnow() < until:
try:
hw = self.fetch.fetch_data(Name('/testrepo/helloworld'), timeout=1.0)
end = datetime.utcnow()
except queue.Empty:
pass
self.assertEqual('Hello, World!\n', hw)
self.assertLess(end-start, timedelta(seconds=4))