def __init__(self):
self.__stream__ = Subject()
def on_next(x):
writer = None
key = None
try:
key = key_selector(x)
except Exception as e:
for w in mapping.values():
w.on_error(e)
observer.on_error(e)
return
fire_new_map_entry = False
writer = mapping.get(key)
if not writer:
writer = Subject()
mapping[key] = writer
fire_new_map_entry = True
if fire_new_map_entry:
group = GroupedObservable(key, writer, ref_count_disposable)
duration_group = GroupedObservable(key, writer)
try:
duration = duration_selector(duration_group)
except Exception as e:
for w in mapping.values():
w.on_error(e)
observer.on_error(e)
return
observer.on_next(group)
md = SingleAssignmentDisposable()
group_disposable.add(md)
def expire():
if mapping[key]:
del mapping[key]
writer.on_completed()
group_disposable.remove(md)
def on_next(value):
pass
def on_error(exn):
for wr in mapping.values():
wr.on_error(exn)
observer.on_error(exn)
def on_completed():
expire()
md.disposable = duration.take(1).subscribe(on_next, on_error, on_completed)
try:
element = element_selector(x)
except Exception as e:
for w in mapping.values():
w.on_error(e)
observer.on_error(e)
return
writer.on_next(element)
WagtailPage.objects.live().public().specific(), info, **kwargs)
# Return a specific page, identified by ID or Slug.
def resolve_page(self, info, **kwargs):
return get_specific_page(
id=kwargs.get("id"),
slug=kwargs.get("slug"),
token=kwargs.get("token"),
content_type=kwargs.get("content_type"),
)
return Mixin
# Subject to sync Django Signals to Observable
preview_subject = Subject()
@receiver(preview_update)
def on_updated(sender, token, **kwargs):
preview_subject.on_next(token)
# Subscription Mixin
def PagesSubscription():
def preview_observable(id, slug, token, content_type):
return preview_subject.filter(
lambda previewToken: previewToken == token).map(
lambda token: get_specific_page(id, slug, token, content_type))
class Mixin:
from rx import Observable
from rx.subjects import Subject
obs1 = Subject()
obs2 = Subject()
obs3 = Subject()
higher_order = Subject()
higher_order.switch_latest().subscribe(
on_next=lambda i: print("on_next {}".format(i)),
on_error=lambda e: print("on_error: {}".format(e)),
on_completed=lambda: print("on_completed"))
higher_order.on_next(obs1)
obs1.on_next("1: 1")
obs1.on_next("1: 2")
higher_order.on_next(obs2)
obs1.on_next("1: 3")
obs2.on_next("2: 1")
obs2.on_next("2: 2")
higher_order.on_next(obs3)
obs2.on_next("2: 3")
obs3.on_next("3: 1")
obs3.on_next("3: 2")
from rx.subjects import Subject
streams = {
"/ws/testware/monitor": Subject(),
"/ws/dbus/system/monitor": Subject(),
}
def __init__(self):
self.subject = Subject()
def emit_event(self, event):
event_type, data = event
print("messege recived")
if event_type not in self.eventSubjects:
self.eventSubjects[event_type] = Subject()
self.eventSubjects[event_type].on_next(data)
def display(self, path: str):
self.rfd_subject = Subject()
self.initial_query: Query = None
self.rfds: list = []
self.path = path
self.rfds_path: str = self.path.replace(".csv", "-RFDs.json")
self.csv_parser: CSVParser = CSVParser(path)
self.data_frame: DataFrame = self.csv_parser.data_frame
self.header = self.csv_parser.header
self.separator = self.csv_parser.delimiter
self.columns_count = self.csv_parser.columns_count
self.rows_count = self.csv_parser.rows_count
self.container_vertical_layout = QVBoxLayout()
container_group_box = QGroupBox()
container_group_box.setLayout(self.container_vertical_layout)
self.setWidget(container_group_box)
self.setWidgetResizable(True)
for i in reversed(range(self.container_vertical_layout.count())):
self.container_vertical_layout.itemAt(i).widget().deleteLater()
self.rfds_tree_wrapper = QGroupBox()
self.rfds_tree_wrapper.setMinimumHeight(200)
self.rfds_tree_wrapper_layout = QVBoxLayout(self.rfds_tree_wrapper)
buttons_group_box = QGroupBox()
buttons_horizontal_layout = QHBoxLayout()
buttons_horizontal_layout.setAlignment(Qt.AlignLeft)
buttons_horizontal_layout.setAlignment(Qt.AlignTop)
buttons_group_box.setLayout(buttons_horizontal_layout)
self.container_vertical_layout.addWidget(buttons_group_box)
discover_rfds_button = QPushButton("Discover RFDs")
width = discover_rfds_button.fontMetrics().boundingRect(discover_rfds_button.text()).width() + 20
discover_rfds_button.setMaximumWidth(width)
discover_rfds_button.clicked.connect(lambda: self.discover_rfds())
load_rfds_button = QPushButton("Load RFDs")
width = load_rfds_button.fontMetrics().boundingRect(load_rfds_button.text()).width() + 20
load_rfds_button.setMaximumWidth(width)
load_rfds_button.clicked.connect(lambda: self.load_rfds())
store_rfds_button = QPushButton("Store RFDs")
width = store_rfds_button.fontMetrics().boundingRect(load_rfds_button.text()).width() + 20
store_rfds_button.setMaximumWidth(width)
store_rfds_button.clicked.connect(lambda: self.store_rfds())
self.filters: dict = {RFDsTab.LHS: QCheckBox("LHS"), RFDsTab.RHS: QCheckBox("RHS")}
lhs_filter_check_box: QCheckBox = self.filters[RFDsTab.LHS]
lhs_filter_check_box.stateChanged.connect(lambda: self.__show_rfds(self.__filter_rfds()))
lhs_filter_check_box.setToolTip("Show RFDs with at least ONE attribute of the query in the LHS")
lhs_filter_check_box.setStyleSheet(RFDsTab.TOOLTIP_STYLE)
rhs_filter_check_box: QCheckBox = self.filters[RFDsTab.RHS]
rhs_filter_check_box.stateChanged.connect(lambda: self.__show_rfds(self.__filter_rfds()))
rhs_filter_check_box.setToolTip("Show RFDs with NO attribute of the query in the RHS")
rhs_filter_check_box.setStyleSheet(RFDsTab.TOOLTIP_STYLE)
buttons_horizontal_layout.addWidget(discover_rfds_button)
buttons_horizontal_layout.addWidget(load_rfds_button)
buttons_horizontal_layout.addWidget(store_rfds_button)
buttons_horizontal_layout.addWidget(lhs_filter_check_box)
buttons_horizontal_layout.addWidget(rhs_filter_check_box)
buttons_horizontal_layout.setAlignment(Qt.AlignLeft)
def __init__(self, host='localhost', port='8888'):
self._url = 'ws://{}:{}/exchange'.format(host, port)
self.conn = None
self.opened = Subject()
self.messages = Subject()
def action1(scheduler, state=None):
s[0] = Subject()
def subscribe(observer, scheduler_=None):
_scheduler = scheduler or scheduler_ or timeout_scheduler
n = [0]
s = [None]
timer_d = SerialDisposable()
window_id = [0]
group_disposable = CompositeDisposable(timer_d)
ref_count_disposable = RefCountDisposable(group_disposable)
def create_timer(_id):
m = SingleAssignmentDisposable()
timer_d.disposable = m
def action(scheduler, state):
if _id != window_id[0]:
return
n[0] = 0
window_id[0] += 1
new_id = window_id[0]
s[0].on_completed()
s[0] = Subject()
observer.on_next(add_ref(s[0], ref_count_disposable))
create_timer(new_id)
m.disposable = _scheduler.schedule_relative(timespan, action)
s[0] = Subject()
observer.on_next(add_ref(s[0], ref_count_disposable))
create_timer(0)
def on_next(x):
new_window = False
new_id = 0
s[0].on_next(x)
n[0] += 1
if n[0] == count:
new_window = True
n[0] = 0
window_id[0] += 1
new_id = window_id[0]
s[0].on_completed()
s[0] = Subject()
observer.on_next(add_ref(s[0], ref_count_disposable))
if new_window:
create_timer(new_id)
def on_error(e):
s[0].on_error(e)
observer.on_error(e)
def on_completed():
s[0].on_completed()
observer.on_completed()
group_disposable.add(
source.subscribe_(on_next, on_error, on_completed, scheduler_))
return ref_count_disposable
def __init__(self):
self.entities = []
self.entities_subject = Subject()
def subscribe(observer, scheduler_=None):
_scheduler = scheduler or scheduler_ or timeout_scheduler
timer_d = SerialDisposable()
next_shift = [timeshift]
next_span = [timespan]
total_time = [timedelta(0)]
q = []
group_disposable = CompositeDisposable(timer_d)
ref_count_disposable = RefCountDisposable(group_disposable)
def create_timer():
m = SingleAssignmentDisposable()
timer_d.disposable = m
is_span = False
is_shift = False
if next_span[0] == next_shift[0]:
is_span = True
is_shift = True
elif next_span[0] < next_shift[0]:
is_span = True
else:
is_shift = True
new_total_time = next_span[0] if is_span else next_shift[0]
ts = new_total_time - total_time[0]
total_time[0] = new_total_time
if is_span:
next_span[0] += timeshift
if is_shift:
next_shift[0] += timeshift
def action(scheduler, state=None):
s = None
if is_shift:
s = Subject()
q.append(s)
observer.on_next(add_ref(s, ref_count_disposable))
if is_span:
s = q.pop(0)
s.on_completed()
create_timer()
m.disposable = _scheduler.schedule_relative(ts, action)
q.append(Subject())
observer.on_next(add_ref(q[0], ref_count_disposable))
create_timer()
def on_next(x):
for s in q:
s.on_next(x)
def on_error(e):
for s in q:
s.on_error(e)
observer.on_error(e)
def on_completed():
for s in q:
s.on_completed()
observer.on_completed()
group_disposable.add(
source.subscribe_(on_next, on_error, on_completed, scheduler_))
return ref_count_disposable
from rx import Observable, Observer
from rx.subjects import Subject
class PrintObserver(Observer):
def on_next(self, value):
print("Value :", value)
def on_error(self, error):
print("Error :", error)
def on_completed(self):
print("Completed")
subject = Subject()
subject.subscribe(PrintObserver())
for i in range(10):
subject.on_next(i)
subject.on_completed()
def provide_vista_detallada_subject(cls):
if cls.vista_detallada_subject is None:
cls.vista_detallada_subject = Subject()
return cls.vista_detallada_subject
from rx import Observable
from rx.subjects import Subject
numbers = Subject()
sampler = Subject()
numbers.sample(sampler=sampler).subscribe(
on_next=lambda i: print("on_next {}".format(i)),
on_error=lambda e: print("on_error: {}".format(e)),
on_completed=lambda: print("on_completed")
)
numbers.on_next(1)
numbers.on_next(2)
sampler.on_next(True)
numbers.on_next(3)
numbers.on_next(4)
numbers.on_next(5)
sampler.on_next(True)
def provide_pantalla_espera_exportar_subject(cls):
if cls.pantalla_espera_exportar_subject is None:
cls.pantalla_espera_exportar_subject = Subject()
return cls.pantalla_espera_exportar_subject
from rx import Observable
from rx.subjects import Subject
import time
numbers = Subject()
numbers.timestamp().subscribe(
on_next=lambda i: print("on_next {}: {}".format(i.value, i.timestamp)),
on_error=lambda e: print("on_error: {}".format(e)),
on_completed=lambda: print("on_completed"))
numbers.on_next(1)
time.sleep(0.1)
numbers.on_next(2)
time.sleep(0.1)
numbers.on_next(3)
time.sleep(0.1)
numbers.on_next(4)
def __init__(self, ws):
self.ws = ws
self.websocketEvents = Subject()
self.eventSubjects = {}
def provide_speed_profile_changed_subject(
self) -> SpeedProfileChangedSubject:
return Subject()
def get_subject(self, event_type):
if event_type not in self.eventSubjects:
self.eventSubjects[event_type] = Subject()
return self.eventSubjects[event_type]
def provide_speed_step_changed_subject(self) -> SpeedStepChangedSubject:
return Subject()
def test_connectable_observable_multiple_non_overlapped_connections(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(210, 1),
on_next(220, 2),
on_next(230, 3),
on_next(240, 4),
on_next(250, 5),
on_next(260, 6),
on_next(270, 7),
on_next(280, 8),
on_next(290, 9),
on_completed(300)
)
subject = Subject()
conn = xs.pipe(ops.multicast(subject))
c1 = [None]
def action10(scheduler, state):
c1[0] = conn.connect(scheduler)
scheduler.schedule_absolute(225, action10)
def action11(scheduler, state):
c1[0].dispose()
scheduler.schedule_absolute(241, action11)
def action12(scheduler, state):
c1[0].dispose() # idempotency test
scheduler.schedule_absolute(245, action12)
def action13(scheduler, state):
c1[0].dispose() # idempotency test
scheduler.schedule_absolute(251, action13)
def action14(scheduler, state):
c1[0].dispose() # idempotency test
scheduler.schedule_absolute(260, action14)
c2 = [None]
def action20(scheduler, state):
c2[0] = conn.connect(scheduler)
scheduler.schedule_absolute(249, action20)
def action21(scheduler, state):
c2[0].dispose()
scheduler.schedule_absolute(255, action21)
def action22(scheduler, state):
c2[0].dispose() # idempotency test
scheduler.schedule_absolute(265, action22)
def action23(scheduler, state):
c2[0].dispose() # idempotency test
scheduler.schedule_absolute(280, action23)
c3 = [None]
def action30(scheduler, state):
c3[0] = conn.connect(scheduler)
scheduler.schedule_absolute(275, action30)
def action31(scheduler, state):
c3[0].dispose()
scheduler.schedule_absolute(295, action31)
res = scheduler.start(lambda: conn)
assert res.messages == [
on_next(230, 3),
on_next(240, 4),
on_next(250, 5),
on_next(280, 8),
on_next(290, 9)]
assert xs.subscriptions == [
subscribe(225, 241),
subscribe(249, 255),
subscribe(275, 295)]
def __init__(self):
self._error_stream = Subject()
self._price_stream = Subject()
self._symbol_stream = Subject()
self.latest_valid_order = None
from rx import Observable
from rx.subjects import Subject
logging.config.fileConfig("logging.conf")
def printMessage(prefix):
def handler(x):
ws, path, msg = [x.get(key) for key in ['ws', 'path', 'msg']]
print(prefix, msg)
return handler
entitlementStatusStream = Subject()
subscriptionManagerStream = Subject()
entitlementStatusStream.subscribe(
printMessage('entitlement status arrived \t'), lambda err: print(err),
lambda: print('end of the show'))
subscriptionManagerStream.subscribe(
printMessage('subscription manager message arrived\t'),
lambda err: print(err), lambda: print('end of the show'))
entitlementUnknownStatusStream = entitlementStatusStream\
.distinct_until_changed(lambda x: x['msg']['overallStatus'])\
.filter(lambda x: x['msg']['overallStatus'] == 'Unknown')
entitlementUnknownStatusStream\
.subscribe(printMessage('entitlement status is unknown\t'))
from PyQt5.QtWidgets import QApplication
from tornado.ioloop import IOLoop
from rx import Observable
from rx.subjects import Subject
from rx.concurrency import QtScheduler, AsyncIOScheduler
from client.client import Client
from client.client_window import ClientWindow
import utils
if __name__ == '__main__':
app = QApplication(sys.argv)
scheduler = QtScheduler(QtCore)
stock_prices = Subject()
client = Client(port='9999')
loop = asyncio.new_event_loop()
asyncio_scheduler = AsyncIOScheduler(loop)
def run_client():
asyncio.set_event_loop(loop)
asyncio.get_event_loop().call_soon(utils.run_client_websocket, client,
stock_prices)
asyncio.get_event_loop().run_forever()
thread = Thread(target=run_client, daemon=True)
thread.start()
client_window = ClientWindow(stock_prices_stream=stock_prices)
def on_next(x):
writer = None
key = None
try:
key = key_mapper(x)
except Exception as e:
for wrt in writers.values():
wrt.on_error(e)
observer.on_error(e)
return
fire_new_map_entry = False
writer = writers.get(key)
if not writer:
writer = Subject()
writers[key] = writer
fire_new_map_entry = True
if fire_new_map_entry:
group = GroupedObservable(key, writer, ref_count_disposable)
duration_group = GroupedObservable(key, writer)
try:
duration = duration_mapper(duration_group)
except Exception as e:
for wrt in writers.values():
wrt.on_error(e)
observer.on_error(e)
return
observer.on_next(group)
sad = SingleAssignmentDisposable()
group_disposable.add(sad)
def expire():
if writers[key]:
del writers[key]
writer.on_completed()
group_disposable.remove(sad)
def on_next(value):
pass
def on_error(exn):
for wrt in writers.values():
wrt.on_error(exn)
observer.on_error(exn)
def on_completed():
expire()
sad.disposable = duration.take(1).subscribe_(
on_next, on_error, on_completed, scheduler)
try:
element = element_mapper(x)
except Exception as error:
for wrt in writers.values():
wrt.on_error(error)
observer.on_error(error)
return
writer.on_next(element)
def provide_pantalla_principal_subject(cls):
if cls.pantalla_principal_subject is None:
cls.pantalla_principal_subject = Subject()
return cls.pantalla_principal_subject
from rx import Observable, Observer
from rx.subjects import Subject
AA = Subject()
aa = AA.filter(lambda s: s == 'A') \
.map(lambda s: s.lower()).publish()
aa.subscribe(lambda a: print(a))
AA.subscribe(lambda a: print("{}".format(2)))
aa.connect()
Observable.from_("A,B,C,D,D,E,F,G,H".split(','))\
.subscribe(AA.on_next)
for s in "A,B,C,D,D,E,F,G,H":
AA.on_next(s)
from rx import Observable
from rx.subjects import Subject
def component_a(input):
return input.map(lambda i: i * 2)
def component_b(input):
input.subscribe(on_next=lambda i: print("item: {}".format(i)),
on_error=lambda e: print("error: {}".format(e)),
on_completed=lambda: print("completed"))
return Observable.from_([1, 2, 3])
b_in_proxy = Subject()
b_out = component_b(b_in_proxy)
a_out = component_a(b_out)
a_out.subscribe(b_in_proxy)