def test_posting_consume_wait(self):
with connect_close(self.board):
jb = self.board.post('test', p_utils.temporary_log_book())
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.board.claim(possible_jobs[0], self.board.name)
self.board.consume(possible_jobs[0], self.board.name)
self.assertTrue(jb.wait())
def test_posting_no_post(self):
with connect_close(self.board):
with mock.patch.object(self.client, 'create') as create_func:
create_func.side_effect = IOError("Unable to post")
self.assertRaises(IOError, self.board.post, 'test',
p_utils.temporary_log_book())
self.assertEqual(0, self.board.job_count)
def test_posting_no_post(self):
with base.connect_close(self.board):
with mock.patch.object(self.client, 'create') as create_func:
create_func.side_effect = IOError("Unable to post")
self.assertRaises(IOError, self.board.post,
'test', p_utils.temporary_log_book())
self.assertEqual(0, self.board.job_count)
def test_trashing_claimed_job(self):
with base.connect_close(self.board):
with base.flush(self.client):
j = self.board.post('test', p_utils.temporary_log_book())
self.assertEqual(states.UNCLAIMED, j.state)
with base.flush(self.client):
self.board.claim(j, self.board.name)
self.assertEqual(states.CLAIMED, j.state)
with base.flush(self.client):
self.board.trash(j, self.board.name)
trashed = []
jobs = []
paths = list(six.iteritems(self.client.storage.paths))
for (path, value) in paths:
if path in self.bad_paths:
continue
if path.find(impl_zookeeper.TRASH_FOLDER) > -1:
trashed.append(path)
elif (path.find(self.board._job_base) > -1
and not path.endswith(impl_zookeeper.LOCK_POSTFIX)):
jobs.append(path)
self.assertEqual(len(trashed), 1)
self.assertEqual(len(jobs), 0)
def test_posting_received_raw(self):
book = p_utils.temporary_log_book()
with base.connect_close(self.board):
self.assertTrue(self.board.connected)
self.assertEqual(0, self.board.job_count)
posted_job = self.board.post('test', book)
self.assertEqual(self.board, posted_job.board)
self.assertEqual(1, self.board.job_count)
self.assertIn(posted_job.uuid, [j.uuid
for j in self.board.iterjobs()])
# Remove paths that got created due to the running process that we are
# not interested in...
paths = {}
for (path, data) in six.iteritems(self.client.storage.paths):
if path in self.bad_paths:
continue
paths[path] = data
# Check the actual data that was posted.
self.assertEqual(1, len(paths))
path_key = list(six.iterkeys(paths))[0]
self.assertTrue(len(paths[path_key]['data']) > 0)
self.assertDictEqual({
'uuid': posted_job.uuid,
'name': posted_job.name,
'book': {
'name': book.name,
'uuid': book.uuid,
},
'details': {},
}, jsonutils.loads(misc.binary_decode(paths[path_key]['data'])))
def test_posting_consume_wait(self):
with connect_close(self.board):
jb = self.board.post('test', p_utils.temporary_log_book())
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.board.claim(possible_jobs[0], self.board.name)
self.board.consume(possible_jobs[0], self.board.name)
self.assertTrue(jb.wait())
def test_posting_dates(self, mock_dt):
epoch = misc.millis_to_datetime(0)
mock_dt.return_value = epoch
with base.connect_close(self.board):
j = self.board.post('test', p_utils.temporary_log_book())
self.assertEqual(epoch, j.created_on)
self.assertEqual(epoch, j.last_modified)
self.assertTrue(mock_dt.called)
def test_posting_dates(self, mock_dt):
epoch = misc.millis_to_datetime(0)
mock_dt.return_value = epoch
with connect_close(self.board):
j = self.board.post('test', p_utils.temporary_log_book())
self.assertEqual(epoch, j.created_on)
self.assertEqual(epoch, j.last_modified)
self.assertTrue(mock_dt.called)
def test_posting_abandon_no_owner(self):
with connect_close(self.board):
with flush(self.client):
self.board.post('test', p_utils.temporary_log_book())
self.assertEqual(1, self.board.job_count)
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(1, len(possible_jobs))
j = possible_jobs[0]
self.assertRaises(excp.JobFailure, self.board.abandon, j, j.name)
def test_posting_abandon_no_owner(self):
with connect_close(self.board):
with flush(self.client):
self.board.post('test', p_utils.temporary_log_book())
self.assertEqual(1, self.board.job_count)
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(1, len(possible_jobs))
j = possible_jobs[0]
self.assertRaises(excp.JobFailure, self.board.abandon, j, j.name)
def test_posting_claim_diff_owner(self):
with connect_close(self.board):
with self.flush(self.client):
self.board.post("test", p_utils.temporary_log_book())
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(1, len(possible_jobs))
with self.flush(self.client):
self.board.claim(possible_jobs[0], self.board.name)
possible_jobs = list(self.board.iterjobs())
self.assertEqual(1, len(possible_jobs))
self.assertRaises(excp.UnclaimableJob, self.board.claim, possible_jobs[0], self.board.name + "-1")
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(0, len(possible_jobs))
def test_posting_claim_diff_owner(self):
with connect_close(self.board):
self.board.post('test', p_utils.temporary_log_book())
self.client.flush()
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(1, len(possible_jobs))
self.board.claim(possible_jobs[0], self.board.name)
self.client.flush()
possible_jobs = list(self.board.iterjobs())
self.assertEqual(1, len(possible_jobs))
self.assertRaises(excp.UnclaimableJob, self.board.claim,
possible_jobs[0], self.board.name + "-1")
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(0, len(possible_jobs))
def test_posting_claim_abandon(self):
with connect_close(self.board):
with flush(self.client):
self.board.post('test', p_utils.temporary_log_book())
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(1, len(possible_jobs))
j = possible_jobs[0]
with flush(self.client):
self.board.claim(j, self.board.name)
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(0, len(possible_jobs))
with flush(self.client):
self.board.abandon(j, self.board.name)
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(1, len(possible_jobs))
def test_posting_claim_abandon(self):
with connect_close(self.board):
with self.flush(self.client):
self.board.post('test', p_utils.temporary_log_book())
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(1, len(possible_jobs))
j = possible_jobs[0]
with self.flush(self.client):
self.board.claim(j, self.board.name)
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(0, len(possible_jobs))
with self.flush(self.client):
self.board.abandon(j, self.board.name)
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(1, len(possible_jobs))
def test_posting_claim_consume(self):
with connect_close(self.board):
with self.flush(self.client):
self.board.post("test", p_utils.temporary_log_book())
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(1, len(possible_jobs))
j = possible_jobs[0]
with self.flush(self.client):
self.board.claim(j, self.board.name)
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(0, len(possible_jobs))
with self.flush(self.client):
self.board.consume(j, self.board.name)
self.assertEqual(0, len(list(self.board.iterjobs())))
self.assertRaises(excp.NotFound, self.board.consume, j, self.board.name)
def test_posting_owner_lost(self):
with connect_close(self.board):
j = self.board.post('test', p_utils.temporary_log_book())
self.client.flush()
self.assertEqual(states.UNCLAIMED, j.state)
self.board.claim(j, self.board.name)
self.client.flush()
self.assertEqual(states.CLAIMED, j.state)
# Forcefully delete the owner from the backend storage to make
# sure the job becomes unclaimed (this may happen if some admin
# manually deletes the lock).
paths = list(six.iteritems(self.client.storage.paths))
for (path, value) in paths:
if path in self.bad_paths:
continue
if path.endswith('lock'):
value['data'] = misc.binary_encode(jsonutils.dumps({}))
self.assertEqual(states.UNCLAIMED, j.state)
def test_posting_state_lock_lost(self):
with base.connect_close(self.board):
with base.flush(self.client):
j = self.board.post('test', p_utils.temporary_log_book())
self.assertEqual(states.UNCLAIMED, j.state)
with base.flush(self.client):
self.board.claim(j, self.board.name)
self.assertEqual(states.CLAIMED, j.state)
# Forcefully delete the lock from the backend storage to make
# sure the job becomes unclaimed (this may happen if some admin
# manually deletes the lock).
paths = list(six.iteritems(self.client.storage.paths))
for (path, value) in paths:
if path in self.bad_paths:
continue
if path.endswith("lock"):
self.client.storage.pop(path)
self.assertEqual(states.UNCLAIMED, j.state)
def test_posting_owner_lost(self):
with connect_close(self.board):
j = self.board.post('test', p_utils.temporary_log_book())
self.client.flush()
self.assertEqual(states.UNCLAIMED, j.state)
self.board.claim(j, self.board.name)
self.client.flush()
self.assertEqual(states.CLAIMED, j.state)
# Forcefully delete the owner from the backend storage to make
# sure the job becomes unclaimed (this may happen if some admin
# manually deletes the lock).
paths = list(six.iteritems(self.client.storage.paths))
for (path, value) in paths:
if path in self.bad_paths:
continue
if path.endswith('lock'):
value['data'] = misc.binary_encode(jsonutils.dumps({}))
self.assertEqual(states.UNCLAIMED, j.state)
def test_posting_claim_consume(self):
with connect_close(self.board):
self.board.post('test', p_utils.temporary_log_book())
self.client.flush()
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(1, len(possible_jobs))
j = possible_jobs[0]
self.board.claim(j, self.board.name)
self.client.flush()
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(0, len(possible_jobs))
self.board.consume(j, self.board.name)
self.client.flush()
self.assertEqual(0, len(list(self.board.iterjobs())))
self.assertRaises(excp.JobNotFound, self.board.consume, j,
self.board.name)
def test_posting_claim_same_owner(self):
with base.connect_close(self.board):
with self.flush(self.client):
self.board.post('test', p_utils.temporary_log_book())
self.assertEqual(1, self.board.job_count)
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(1, len(possible_jobs))
j = possible_jobs[0]
self.assertEqual(states.UNCLAIMED, j.state)
with self.flush(self.client):
self.board.claim(j, self.board.name)
possible_jobs = list(self.board.iterjobs())
self.assertEqual(1, len(possible_jobs))
with self.flush(self.client):
self.assertRaises(excp.UnclaimableJob, self.board.claim,
possible_jobs[0], self.board.name)
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(0, len(possible_jobs))
def test_posting_claim_same_owner(self):
with base.connect_close(self.board):
with self.flush(self.client):
self.board.post('test', p_utils.temporary_log_book())
self.assertEqual(1, self.board.job_count)
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(1, len(possible_jobs))
j = possible_jobs[0]
self.assertEqual(states.UNCLAIMED, j.state)
with self.flush(self.client):
self.board.claim(j, self.board.name)
possible_jobs = list(self.board.iterjobs())
self.assertEqual(1, len(possible_jobs))
with self.flush(self.client):
self.assertRaises(excp.UnclaimableJob, self.board.claim,
possible_jobs[0], self.board.name)
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(0, len(possible_jobs))
def test_posting_claim_expiry(self):
with base.connect_close(self.board):
with self.flush(self.client):
self.board.post('test', p_utils.temporary_log_book())
self.assertEqual(1, self.board.job_count)
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(1, len(possible_jobs))
j = possible_jobs[0]
self.assertEqual(states.UNCLAIMED, j.state)
with self.flush(self.client):
self.board.claim(j, self.board.name, expiry=0.5)
self.assertEqual(self.board.name, self.board.find_owner(j))
self.assertEqual(states.CLAIMED, j.state)
time.sleep(0.6)
self.assertEqual(states.UNCLAIMED, j.state)
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(1, len(possible_jobs))
def test_posting_claim_expiry(self):
with base.connect_close(self.board):
with self.flush(self.client):
self.board.post('test', p_utils.temporary_log_book())
self.assertEqual(1, self.board.job_count)
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(1, len(possible_jobs))
j = possible_jobs[0]
self.assertEqual(states.UNCLAIMED, j.state)
with self.flush(self.client):
self.board.claim(j, self.board.name, expiry=0.5)
self.assertEqual(self.board.name, self.board.find_owner(j))
self.assertEqual(states.CLAIMED, j.state)
time.sleep(0.6)
self.assertEqual(states.UNCLAIMED, j.state)
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(1, len(possible_jobs))
def test_posting_claim(self):
with connect_close(self.board):
self.board.post('test', p_utils.temporary_log_book())
self.client.flush()
self.assertEqual(1, self.board.job_count)
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(1, len(possible_jobs))
j = possible_jobs[0]
self.assertEqual(states.UNCLAIMED, j.state)
self.board.claim(j, self.board.name)
self.client.flush()
self.assertEqual(self.board.name, self.board.find_owner(j))
self.assertEqual(states.CLAIMED, j.state)
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(0, len(possible_jobs))
self.assertRaisesAttrAccess(excp.JobNotFound, j, 'state')
self.assertRaises(excp.JobNotFound, self.board.consume, j,
self.board.name)
def test_posting_claim(self):
with connect_close(self.board):
with self.flush(self.client):
self.board.post('test', p_utils.temporary_log_book())
self.assertEqual(1, self.board.job_count)
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(1, len(possible_jobs))
j = possible_jobs[0]
self.assertEqual(states.UNCLAIMED, j.state)
with self.flush(self.client):
self.board.claim(j, self.board.name)
self.assertEqual(self.board.name, self.board.find_owner(j))
self.assertEqual(states.CLAIMED, j.state)
possible_jobs = list(self.board.iterjobs(only_unclaimed=True))
self.assertEqual(0, len(possible_jobs))
self.close_client(self.client)
self.assertRaisesAttrAccess(excp.JobFailure, j, 'state')
def poster(wait_post=0.2):
if not ev.wait(test_utils.WAIT_TIMEOUT):
raise RuntimeError("Waiter did not appear ready"
" in %s seconds" % test_utils.WAIT_TIMEOUT)
time.sleep(wait_post)
self.board.post('test', p_utils.temporary_log_book())
def poster(wait_post=0.2):
if not ev.wait(test_utils.WAIT_TIMEOUT):
raise RuntimeError("Waiter did not appear ready"
" in %s seconds" % test_utils.WAIT_TIMEOUT)
time.sleep(wait_post)
self.board.post('test', p_utils.temporary_log_book())
def poster(wait_post=0.2):
ev.wait() # wait until the waiter is active
time.sleep(wait_post)
self.board.post('test', p_utils.temporary_log_book())
def execute(self):
print('executing %s' % self)
return 'ok'
def flow_factory():
return lf.Flow('resume from backend example').add(
TestTask(name='first'),
InterruptTask(name='boom'),
TestTask(name='second'))
### INITIALIZE PERSISTENCE ####################################
backend = get_backend()
logbook = p_utils.temporary_log_book(backend)
### CREATE AND RUN THE FLOW: FIRST ATTEMPT ####################
flow = flow_factory()
flowdetail = p_utils.create_flow_detail(flow, logbook, backend)
engine = taskflow.engines.load(flow, flow_detail=flowdetail,
backend=backend)
print_task_states(flowdetail, "At the beginning, there is no state")
print_wrapped("Running")
engine.run()
print_task_states(flowdetail, "After running")
from taskflow.engines.action_engine import engine
from taskflow.patterns import linear_flow as lf
from taskflow.persistence.backends import impl_memory
from taskflow import task
from taskflow.utils import persistence_utils
# INTRO: This examples shows how to run a engine using the engine iteration
# capability, in between iterations other activities occur (in this case a
# value is output to stdout); but more complicated actions can occur at the
# boundary when a engine yields its current state back to the caller.
class EchoNameTask(task.Task):
def execute(self):
print(self.name)
f = lf.Flow("counter")
for i in range(0, 10):
f.add(EchoNameTask("echo_%s" % (i + 1)))
be = impl_memory.MemoryBackend()
book = persistence_utils.temporary_log_book(be)
fd = persistence_utils.create_flow_detail(f, book, be)
e = engine.SingleThreadedActionEngine(f, fd, be, {})
e.compile()
e.prepare()
for i, st in enumerate(e.run_iter(), 1):
print("Transition %s: %s" % (i, st))
def setUp(self):
super(EngineTestBase, self).setUp()
self.values = []
self.backend = impl_memory.MemoryBackend(conf={})
self.book = p_utils.temporary_log_book(self.backend)
def test_fresh_iter(self):
with connect_close(self.board):
book = p_utils.temporary_log_book()
self.board.post('test', book)
jobs = list(self.board.iterjobs(ensure_fresh=True))
self.assertEqual(1, len(jobs))
class TestTask(task.Task):
def execute(self):
print('executing %s' % self)
return 'ok'
def flow_factory():
return lf.Flow('resume from backend example').add(
TestTask(name='first'), InterruptTask(name='boom'),
TestTask(name='second'))
### INITIALIZE PERSISTENCE ####################################
backend = get_backend()
logbook = p_utils.temporary_log_book(backend)
### CREATE AND RUN THE FLOW: FIRST ATTEMPT ####################
flow = flow_factory()
flowdetail = p_utils.create_flow_detail(flow, logbook, backend)
engine = taskflow.engines.load(flow, flow_detail=flowdetail, backend=backend)
print_task_states(flowdetail, "At the beginning, there is no state")
print_wrapped("Running")
engine.run()
print_task_states(flowdetail, "After running")
### RE-CREATE, RESUME, RUN ####################################
print_wrapped("Resuming and running again")
def test_posting_no_consume_wait(self):
with connect_close(self.board):
jb = self.board.post('test', p_utils.temporary_log_book())
self.assertFalse(jb.wait(0.1))
def test_fresh_iter(self):
with connect_close(self.board):
book = p_utils.temporary_log_book()
self.board.post('test', book)
jobs = list(self.board.iterjobs(ensure_fresh=True))
self.assertEqual(1, len(jobs))
def test_posting_no_consume_wait(self):
with connect_close(self.board):
jb = self.board.post('test', p_utils.temporary_log_book())
self.assertFalse(jb.wait(0.1))
else:
f.add(
EchoTask(name="echoer_%s" % curr_value,
rebind={'value': curr_value}))
curr_value = next_value
return f
# Adjust this number to change how many engines/flows run at once.
flow_count = 1
flows = []
for i in range(0, flow_count):
f = make_alphabet_flow(i + 1)
flows.append(make_alphabet_flow(i + 1))
be = persistence_backends.fetch(conf={'connection': 'memory'})
book = persistence_utils.temporary_log_book(be)
engine_iters = []
for f in flows:
fd = persistence_utils.create_flow_detail(f, book, be)
e = engines.load(f, flow_detail=fd, backend=be, book=book)
e.compile()
e.storage.inject({'A': 'A'})
e.prepare()
engine_iters.append(e.run_iter())
while engine_iters:
for it in list(engine_iters):
try:
print(six.next(it))
except StopIteration:
engine_iters.remove(it)
