def test_CHOICE03(self):
we = GenericWorkflowEngine()
doc = self.getDoc()[0:1]
def arbiter(obj, eng):
return obj[-1]
we.setWorkflow([
i('start'),
cf.CHOICE(
arbiter,
('bam', lambda obj, eng: obj.append('bom')),
('end', lambda obj, eng: obj.append('error')),
('bim', lambda obj, eng: obj.append('bam')),
bom=(lambda obj, eng: obj.append('bum')),
one=(lambda obj, eng: obj.append('bim')),
bum=cf.STOP(),
),
cf.TASK_JUMP_BWD(-1)
])
we.process(doc)
d = ' '.join(doc[0])
assert 'bim bam bom bum' in d
assert 'error' not in d
assert len(doc[0]) == 6
def run_workflow(records, name, **kwargs):
"""Run the uploader workflow itself.
:param records: List of tuples `(blob, json_record)` from :func:`translate`
:param name: Name of the workflow to be run.
:parma kwargs: Additional arguments to be used by the tasks of the workflow
:returns: Typically the list of record Ids that has been process, although
this value could be modify by the `post_tasks`.
"""
def _run_pre_post_tasks(tasks):
"""Helper function to run list of functions."""
for task in tasks:
task(records, **kwargs)
#FIXME: don't know why this is needed but IT IS!
records = records[0]
if name in cfg['UPLOADER_WORKFLOWS']:
workflow = workflows.get(name)
else:
raise UploaderException("Workflow {0} not in UPLOADER_WORKFLOWS".format(name))
_run_pre_post_tasks(workflow.pre_tasks)
wfe = WorkflowEngine()
wfe.setWorkflow(workflow.tasks)
wfe.setVar('options', kwargs)
wfe.process(records)
_run_pre_post_tasks(workflow.post_tasks)
signals.uploader_finished.send(uploader_workflow=name,
result=records, **kwargs)
return records
def run_workflow_2():
# Create the engine as in the previous example
my_engine_2 = GenericWorkflowEngine()
my_engine_2.setWorkflow(my_workflow_2)
try:
# Note how we don't need to keep a reference to our tokens - the engine
# allows us to access them via `my_engine.objects` later.
my_engine_2.process([[], [0,1], [0,1,0,1]])
except HaltProcessing:
# Our engine was built to throw this exception every time an object is
# completed. At this point we can inspect the object to decide what to
# do next. In any case, we will ask it to move to the next object,
# until it stops throwing the exception (which, in our case, means it
# has finished with all objects).
while True:
try:
# Restart the engine with the next object, starting from the
# first task.
my_engine_2.restart('next', 'first')
except HaltProcessing:
continue
else:
print "Done!", my_engine_2.objects
break
def test_IF_ELSE03(self):
we = GenericWorkflowEngine()
doc = self.getDoc()
doc[3].append('4')
def test(v):
return lambda o, e: v in o
we.setWorkflow([
i('add'),
cf.IF_ELSE(test('three'), [
a('xxx'),
cf.IF_ELSE(test('xxx'), [
a('6'),
cf.IF_ELSE(test('6'), a('six'), (a('only-3s'), a('error')))
], a('ok'))
], [
cf.IF_ELSE(
test('4'),
cf.IF_ELSE(test('four'), [a('44'), [[[a('forty')]]]],
a('error')), a('not-four'))
]),
a('end'),
cf.IF_ELSE(test('error'), a('gosh!'), a('OK'))
])
we.process(doc)
r = [' '.join(doc[x]) for x in range(len(doc))]
assert r[0] == 'add one not-four end OK'
assert r[1] == 'add two not-four end OK'
assert r[2] == 'add three xxx 6 six end OK'
assert r[3] == 'add four 4 44 forty end OK'
assert r[4] == 'add five not-four end OK'
def test_PARALLEL_SPLIT01(self):
we = GenericWorkflowEngine()
doc = self.getDoc()
we.setWorkflow([
i('start'),
cf.PARALLEL_SPLIT(printer('p1'), printer('p2'), printer('p3'),
printer('p4'), printer('p5')),
lambda o, e: time.sleep(.1),
a('end')
])
we.process(doc)
r = [' '.join(doc[x]) for x in range(len(doc))]
assert doc[0][0] == 'start'
assert doc[0][1] == 'one'
assert doc[1][0] == 'start'
assert doc[1][1] == 'two'
# end must have been inserted while printers were running
# mixed together with them
all_pos = set()
for x in range(len(doc)):
pos = doc[x].index('end')
assert pos > 2
assert pos < len(doc[x])
all_pos.add(pos)
def test_workflow01(self):
we0 = GenericWorkflowEngine()
we1 = GenericWorkflowEngine()
we2 = GenericWorkflowEngine()
d0 = self.getDoc()
d1 = self.getDoc()
d2 = self.getDoc()
we0.addManyCallbacks('*', [
m('mouse'),
[m('dog'), call_forward(1), m('cat'), m('puppy')],
m('horse'),
])
we1.setWorkflow([
m('mouse'),
[m('dog'), call_forward(1), m('cat'), m('puppy')],
m('horse'),
])
we2.addManyCallbacks('x', [
m('mouse'),
[m('dog'), call_forward(1), m('cat'), m('puppy')],
m('horse'),
])
we2.configure(callback_chooser=lambda o, e: e.getCallbacks('x'))
we0.process(d0)
we1.process(d1)
we2.process(d2)
assert d0 == d1
assert d0 == d2
def test_PARALLEL_SPLIT01(self):
we = GenericWorkflowEngine()
doc = self.getDoc()
we.setWorkflow([i('start'),
cf.PARALLEL_SPLIT(
printer('p1'),
printer('p2'),
printer('p3'),
printer('p4'),
printer('p5')),
lambda o, e: time.sleep(.1),
a('end')
])
we.process(doc)
r = [' '.join(doc[x]) for x in range(len(doc))]
assert doc[0][0] == 'start'
assert doc[0][1] == 'one'
assert doc[1][0] == 'start'
assert doc[1][1] == 'two'
# end must have been inserted while printers were running
# mixed together with them
all_pos = set()
for x in range(len(doc)):
pos = doc[x].index('end')
assert pos > 2
assert pos < len(doc[x])
all_pos.add(pos)
def test_workflow01(self):
we0 = GenericWorkflowEngine()
we1 = GenericWorkflowEngine()
we2 = GenericWorkflowEngine()
d0 = self.getDoc()
d1 = self.getDoc()
d2 = self.getDoc()
we0.addManyCallbacks('*', [
m('mouse'),
[m('dog'), call_forward(1),
m('cat'), m('puppy')],
m('horse'),
])
we1.setWorkflow([
m('mouse'),
[m('dog'), call_forward(1),
m('cat'), m('puppy')],
m('horse'),
])
we2.addManyCallbacks('x', [
m('mouse'),
[m('dog'), call_forward(1),
m('cat'), m('puppy')],
m('horse'),
])
we2.configure(callback_chooser=lambda o, e: e.getCallbacks('x'))
we0.process(d0)
we1.process(d1)
we2.process(d2)
assert d0 == d1
assert d0 == d2
def run_workflow(records, name, **kwargs):
"""Run the uploader workflow itself.
:param records: List of tuples `(blob, json_record)` from :func:`translate`
:param name: Name of the workflow to be run.
:parma kwargs: Additional arguments to be used by the tasks of the workflow
:returns: Typically the list of record Ids that has been process, although
this value could be modify by the `post_tasks`.
"""
def _run_pre_post_tasks(tasks):
"""Helper function to run list of functions."""
for task in tasks:
task(records, **kwargs)
#FIXME: don't know why this is needed but IT IS!
records = records[0]
if name in cfg['UPLOADER_WORKFLOWS']:
workflow = workflows.get(name)
else:
raise UploaderException(
"Workflow {0} not in UPLOADER_WORKFLOWS".format(name))
_run_pre_post_tasks(workflow.pre_tasks)
wfe = WorkflowEngine()
wfe.setWorkflow(workflow.tasks)
wfe.setVar('options', kwargs)
wfe.process(records)
_run_pre_post_tasks(workflow.post_tasks)
signals.uploader_finished.send(uploader_workflow=name,
result=records,
**kwargs)
return records
def test_CHOICE03(self):
we = GenericWorkflowEngine()
doc = self.getDoc()[0:1]
def arbiter(obj, eng):
return obj[-1]
we.setWorkflow([i('start'),
cf.CHOICE(arbiter,
('bam', lambda obj, eng: obj.append('bom')),
('end', lambda obj,
eng: obj.append('error')),
('bim', lambda obj, eng: obj.append('bam')),
bom=(lambda obj, eng: obj.append('bum')),
one=(lambda obj, eng: obj.append('bim')),
bum=cf.STOP(),
),
cf.TASK_JUMP_BWD(-1)])
we.process(doc)
d = ' '.join(doc[0])
assert 'bim bam bom bum' in d
assert 'error' not in d
assert len(doc[0]) == 6
def run_workflow(message):
jsonObj = json.loads(message)
print "Workflow input header message %s" % (jsonObj['Header'])
data = jsonObj['Body']
my_engine = GenericWorkflowEngine()
my_engine.setWorkflow(workflow_model_1())
my_engine.process(data)
def test_workflow01(self):
class GenericWEWithXChooser(GenericWorkflowEngine):
def callback_chooser(self, obj):
return self.callbacks.get('x')
we0 = GenericWorkflowEngine()
we1 = GenericWorkflowEngine()
we2 = GenericWEWithXChooser()
we0.addManyCallbacks('*', [
obj_append('mouse'),
[obj_append('dog'), jump_call(1), obj_append('cat'), obj_append('puppy')],
obj_append('horse'),
])
we1.setWorkflow([
obj_append('mouse'),
[obj_append('dog'), jump_call(1), obj_append('cat'), obj_append('puppy')],
obj_append('horse'),
])
we2.addManyCallbacks('x', [
obj_append('mouse'),
[obj_append('dog'), jump_call(1), obj_append('cat'), obj_append('puppy')],
obj_append('horse'),
])
we0.process(self.d0)
we1.process(self.d1)
we2.process(self.d2)
assert self.d0 == self.d1
assert self.d0 == self.d2
def run_workflow_1(): my_object0 = MyObject(0) my_object1 = MyObject(1) my_engine_1 = GenericWorkflowEngine() my_engine_1.setWorkflow(my_workflow_1) my_engine_1.process([my_object0, my_object1])
def test_PARALLEL_SPLIT02(self):
"""TODO: this test is failing, but that is because sometimes it does
not take into accounts threads being executed in random mannger"""
we = GenericWorkflowEngine()
doc = self.getDoc()[0:1]
we.setWorkflow([i('start'),
cf.PARALLEL_SPLIT(
[
cf.PARALLEL_SPLIT(
printer('p0'),
printer('p0a'),
cf.PARALLEL_SPLIT(
printer('p0b'),
printer('p0c')
),
),
printer('xx')
],
[
a('AAA'),
printer('p2b')
],
printer('p3'),
[
a('p4a'),
printer('p4b'),
printer('p4c')
],
[printer('p5'), cf.PARALLEL_SPLIT(
printer('p6'),
printer('p7'),
[printer('p8a'), printer('p8b')],
)]),
a('end')
])
we.process(doc)
# give threads time to finish
time.sleep(2)
assert doc[0][0] == 'start'
assert doc[0][1] == 'one'
# at least the fist object should have them all
# print doc[0]
for x in ['p0', 'p0a', 'p0b', 'p0c', 'xx', 'AAA', 'p2b', 'p3', 'p4a',
'p4b', 'p4c', 'p5', 'p6', 'p8a', 'p8b']:
doc[0].index(x) # will fail if not present
def test_IF_ELSE02(self):
we = GenericWorkflowEngine()
doc = self.getDoc()
we.setWorkflow([
i('add'),
cf.IF_ELSE(lambda o, e: o[1] == 'three', a('3'), a('other'))
])
we.process(doc)
r = [' '.join(doc[x]) for x in range(len(doc))]
assert r[0] == 'add one other'
assert r[1] == 'add two other'
assert r[2] == 'add three 3'
assert r[3] == 'add four other'
assert r[4] == 'add five other'
def test_workflow01(self):
class GenericWEWithXChooser(GenericWorkflowEngine):
def callback_chooser(self, obj):
return self.callbacks.get('x')
we0 = GenericWorkflowEngine()
we1 = GenericWorkflowEngine()
we2 = GenericWEWithXChooser()
we0.addManyCallbacks('*', [
obj_append('mouse'),
[
obj_append('dog'),
jump_call(1),
obj_append('cat'),
obj_append('puppy')
],
obj_append('horse'),
])
we1.setWorkflow([
obj_append('mouse'),
[
obj_append('dog'),
jump_call(1),
obj_append('cat'),
obj_append('puppy')
],
obj_append('horse'),
])
we2.addManyCallbacks('x', [
obj_append('mouse'),
[
obj_append('dog'),
jump_call(1),
obj_append('cat'),
obj_append('puppy')
],
obj_append('horse'),
])
we0.process(self.d0)
we1.process(self.d1)
we2.process(self.d2)
assert self.d0 == self.d1
assert self.d0 == self.d2
def test_IF_ELSE02(self):
we = GenericWorkflowEngine()
doc = self.getDoc()
we.setWorkflow([i('add'),
cf.IF_ELSE(lambda o, e: o[1] == 'three',
a('3'),
a('other'))
])
we.process(doc)
r = [' '.join(doc[x]) for x in range(len(doc))]
assert r[0] == 'add one other'
assert r[1] == 'add two other'
assert r[2] == 'add three 3'
assert r[3] == 'add four other'
assert r[4] == 'add five other'
def test_PARALLEL_SPLIT02(self):
"""TODO: this test is failing, but that is because sometimes it does
not take into accounts threads being executed in random mannger"""
we = GenericWorkflowEngine()
doc = self.getDoc()[0:1]
we.setWorkflow([
i('start'),
cf.PARALLEL_SPLIT(
[
cf.PARALLEL_SPLIT(
printer('p0'),
printer('p0a'),
cf.PARALLEL_SPLIT(printer('p0b'), printer('p0c')),
),
printer('xx')
], [a('AAA'), printer('p2b')], printer('p3'),
[a('p4a'), printer('p4b'),
printer('p4c')], [
printer('p5'),
cf.PARALLEL_SPLIT(
printer('p6'),
printer('p7'),
[printer('p8a'), printer('p8b')],
)
]),
a('end')
])
we.process(doc)
# give threads time to finish
time.sleep(2)
assert doc[0][0] == 'start'
assert doc[0][1] == 'one'
# at least the fist object should have them all
# print doc[0]
for x in [
'p0', 'p0a', 'p0b', 'p0c', 'xx', 'AAA', 'p2b', 'p3', 'p4a',
'p4b', 'p4c', 'p5', 'p6', 'p8a', 'p8b'
]:
doc[0].index(x) # will fail if not present
def test_RUN_WF01(self):
"""Test wfe is reinit=False, eng must remember previous invocations"""
we = GenericWorkflowEngine()
doc = self.getDoc()[0:1]
we.setWorkflow(
[
i('start'),
ut.RUN_WF(
[
lambda obj, eng: obj.append('bom'),
lambda obj, eng: obj.append('bam'),
lambda obj, eng: obj.append('bum'),
lambda obj, eng: obj.append('end'),
lambda obj, eng: obj.append(
eng.store.setdefault('eng-end', '')),
e('eng-end', 'eng-end')
],
data_connector=lambda obj, eng: [obj],
outkey='#wfe',
),
]
)
we.process(doc)
d = ' '.join(doc[0])
assert 'start' in d
assert 'bom' in d
assert 'bam' in d
assert 'bum' in d
assert 'end' in d
assert 'eng-end' not in d
# run the same thing again
we.process(doc)
d = ' '.join(doc[0])
assert 'start' in d
assert d.count('bom') == 2
assert d.count('bam') == 2
assert d.count('bum') == 2
assert 'end' in d
assert 'eng-end' in d # now it must be present
def test_PARALLEL_SPLIT03(self):
we = GenericWorkflowEngine()
doc = self.getDoc()
we.setWorkflow([i('start'),
cf.PARALLEL_SPLIT(
[cf.IF(lambda obj, eng: 'jump-verified' in obj, a('error')),
cf.PARALLEL_SPLIT(
[cf.IF(lambda obj, eng: 'nasty-jump' in obj,
[a('jump-ok'),
lambda obj, eng: ('nasty-jump' in obj and
obj.append('jump-verified'))]),
cf.PARALLEL_SPLIT(
a('ok-1'),
a('ok-2'),
cf.IF(lambda obj, eng: 'ok-3' not in obj,
lambda obj, eng: (obj.append('ok-3') and
eng.breakFromThisLoop())),
a('ok-4')),
a('xx'),
lambda obj, eng: ('jump-verified' in obj and
eng.breakFromThisLoop()),
a('nasty-jump'),
cf.TASK_JUMP_IF(
lambda obj, eng: 'jump-verified' not in obj, -100)]),
],
[a('AAA'), a('p2b')]),
a('end')
])
we.process(doc)
# give threads time to finish
time.sleep(.5)
d = doc[0]
# at least the fist object should have them all
# print doc[0]
for x in ['nasty-jump', 'jump-verified', 'ok-3']:
d.index(x) # will fail if not present
assert d.count('ok-1') > 1
def test_RUN_WF01(self):
"""Test wfe is reinit=False, eng must remember previous invocations"""
we = GenericWorkflowEngine()
doc = self.getDoc()[0:1]
we.setWorkflow([
i('start'),
ut.RUN_WF(
[
lambda obj, eng: obj.append('bom'),
lambda obj, eng: obj.append('bam'),
lambda obj, eng: obj.append('bum'),
lambda obj, eng: obj.append('end'), lambda obj, eng: obj.
append(eng.store.setdefault('eng-end', '')),
e('eng-end', 'eng-end')
],
data_connector=lambda obj, eng: [obj],
outkey='#wfe',
),
])
we.process(doc)
d = ' '.join(doc[0])
assert 'start' in d
assert 'bom' in d
assert 'bam' in d
assert 'bum' in d
assert 'end' in d
assert 'eng-end' not in d
# run the same thing again
we.process(doc)
d = ' '.join(doc[0])
assert 'start' in d
assert d.count('bom') == 2
assert d.count('bam') == 2
assert d.count('bum') == 2
assert 'end' in d
assert 'eng-end' in d # now it must be present
def test_RUN_WF02(self):
"""Test wfe is reinit=True - eng must not remember"""
we = GenericWorkflowEngine()
doc = self.getDoc()[0:1]
we.setWorkflow([i('start'),
ut.RUN_WF([
lambda obj, eng: obj.append('bom'),
lambda obj, eng: obj.append('bam'),
lambda obj, eng: obj.append('bum'),
lambda obj, eng: obj.append('end'),
lambda obj, eng: obj.append(
eng.getVar('eng-end', '')),
e('eng-end', 'eng-end')
],
data_connector=lambda obj, eng: [obj],
outkey='#wfe',
reinit=True
),
])
we.process(doc)
d = ' '.join(doc[0])
assert 'start' in d
assert 'bom' in d
assert 'bam' in d
assert 'bum' in d
assert 'end' in d
assert 'eng-end' not in d
# run the same thing again
we.process(doc)
d = ' '.join(doc[0])
assert 'start' in d
assert d.count('bom') == 2
assert d.count('bam') == 2
assert d.count('bum') == 2
assert 'end' in d
assert 'eng-end' not in d # it must not be present if reinit=True
def test_PARALLEL_SPLIT03(self):
we = GenericWorkflowEngine()
doc = self.getDoc()
we.setWorkflow([
i('start'),
cf.PARALLEL_SPLIT([
cf.IF(lambda obj, eng: 'jump-verified' in obj, a('error')),
cf.PARALLEL_SPLIT([
cf.IF(lambda obj, eng: 'nasty-jump' in obj, [
a('jump-ok'), lambda obj, eng:
('nasty-jump' in obj and obj.append('jump-verified'))
]),
cf.PARALLEL_SPLIT(
a('ok-1'), a('ok-2'),
cf.IF(
lambda obj, eng: 'ok-3' not in obj,
lambda obj, eng:
(obj.append('ok-3') and eng.breakFromThisLoop())),
a('ok-4')),
a('xx'), lambda obj, eng:
('jump-verified' in obj and eng.breakFromThisLoop()),
a('nasty-jump'),
cf.TASK_JUMP_IF(
lambda obj, eng: 'jump-verified' not in obj, -100)
]),
], [a('AAA'), a('p2b')]),
a('end')
])
we.process(doc)
# give threads time to finish
time.sleep(.5)
d = doc[0]
# at least the fist object should have them all
# print doc[0]
for x in ['nasty-jump', 'jump-verified', 'ok-3']:
d.index(x) # will fail if not present
assert d.count('ok-1') > 1
def test_SIMPLE_MERGE03(self):
we = GenericWorkflowEngine()
doc = self.getDoc()[0:1]
we.setWorkflow([i('start'),
cf.SIMPLE_MERGE(
lambda obj, eng: obj.append('bom'),
lambda obj, eng: obj.append('error'),
lambda obj, eng: obj.append('bam'),
lambda obj, eng: obj.append('bum'),
lambda obj, eng: obj.append('end'),
),
])
we.process(doc)
d = ' '.join(doc[0])
assert 'start' in d
assert 'bom' in d
assert 'error' not in d
assert 'end' in d
def test_SIMPLE_MERGE03(self):
we = GenericWorkflowEngine()
doc = self.getDoc()[0:1]
we.setWorkflow([i('start'),
cf.SIMPLE_MERGE(
lambda obj, eng: obj.append('bom'),
lambda obj, eng: obj.append('error'),
lambda obj, eng: obj.append('bam'),
lambda obj, eng: obj.append('bum'),
lambda obj, eng: obj.append('end'),
),
])
we.process(doc)
d = ' '.join(doc[0])
assert 'start' in d
assert 'bom' in d
assert 'error' not in d
assert 'end' in d
def test_RUN_WF02(self):
"""Test wfe is reinit=True - eng must not remember"""
we = GenericWorkflowEngine()
doc = self.getDoc()[0:1]
we.setWorkflow([
i('start'),
ut.RUN_WF([
lambda obj, eng: obj.append('bom'),
lambda obj, eng: obj.append('bam'),
lambda obj, eng: obj.append('bum'),
lambda obj, eng: obj.append('end'),
lambda obj, eng: obj.append(eng.getVar('eng-end', '')),
e('eng-end', 'eng-end')
],
data_connector=lambda obj, eng: [obj],
outkey='#wfe',
reinit=True),
])
we.process(doc)
d = ' '.join(doc[0])
assert 'start' in d
assert 'bom' in d
assert 'bam' in d
assert 'bum' in d
assert 'end' in d
assert 'eng-end' not in d
# run the same thing again
we.process(doc)
d = ' '.join(doc[0])
assert 'start' in d
assert d.count('bom') == 2
assert d.count('bam') == 2
assert d.count('bum') == 2
assert 'end' in d
assert 'eng-end' not in d # it must not be present if reinit=True
def test_IF_ELSE03(self):
we = GenericWorkflowEngine()
doc = self.getDoc()
doc[3].append('4')
def test(v):
return lambda o, e: v in o
we.setWorkflow([i('add'),
cf.IF_ELSE(
test('three'),
[a('xxx'), cf.IF_ELSE(test('xxx'),
[a('6'), cf.IF_ELSE(
test('6'),
a('six'),
(a('only-3s'), a('error')))],
a('ok'))],
[cf.IF_ELSE(
test('4'),
cf.IF_ELSE(test('four'),
[a('44'), [[[a('forty')]]]],
a('error')),
a('not-four'))]),
a('end'),
cf.IF_ELSE(test('error'),
a('gosh!'),
a('OK'))
])
we.process(doc)
r = [' '.join(doc[x]) for x in range(len(doc))]
assert r[0] == 'add one not-four end OK'
assert r[1] == 'add two not-four end OK'
assert r[2] == 'add three xxx 6 six end OK'
assert r[3] == 'add four 4 44 forty end OK'
assert r[4] == 'add five not-four end OK'
def run_workflow_3():
my_engine_3 = GenericWorkflowEngine()
my_engine_3.setWorkflow(my_workflow_3)
my_engine_3.process([[]])
def runWorkflow(data):
from workflow.engine import GenericWorkflowEngine
wfe = GenericWorkflowEngine()
wfe.setWorkflow(flow)
wfe.process(data)
