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How to use on_exception method in localstack

Best Python code snippet using localstack_python

yosun.py

Source:yosun.py

...20    def __call__(self, *args, **kwargs):21        try:22            self._callback(*args, **kwargs)23        except Exception as e:24            self._on_exception(e)25    def _default_on_exception(self, exception):26        raise exception27class Subscription(object):28    def __init__(self, connection, exchange, binding_key, key_prefix='', reconnect_timeout=10, on_exception=None):29        self._connection = connection30        self._exchange = exchange31        self._binding_key = binding_key32        self._key_prefix = key_prefix33        self._reconnect_timeout = reconnect_timeout34        if on_exception is not None:35            if not isroutine(on_exception):36                raise ValueError('on_exception must be a function or method')37            self._on_exception = on_exception38        else:39            self._on_exception = self._default_on_exception40        self._handlers = defaultdict(list)41        self._handlers_for_all = []42        self._events = {}43        self._event_any = Event()44        self._running = False45        self._thread = None46        self.start()47    def __del__(self):48        self._running = False49        try:50            self._thread.join()51        except Exception as e:52            pass53    def _default_on_exception(self, exception):54        raise exception55    @property56    def is_alive(self):57        return self._thread is not None and self._thread.is_alive()58    def start(self):59        if not self._running:60            self._running = True61            self._thread = Thread(target=self._consume)62            self._thread.start()63    def stop(self):64        self._running = False65    def on(self, routing_key, callback, on_exception=None):66        # register a callback for the given routing key67        routing_key = '{0}{1}'.format(self._key_prefix, routing_key)68        self._handlers[routing_key].append(Handler(callback, on_exception))69        return self70    def all(self, callback, on_exception=None):71        # register a callback for all routing keys72        self._handlers_for_all.append(Handler(callback, on_exception))73        return self74    def wait(self, routing_key, timeout=None):75        # register an event wait76        routing_key = '{0}{1}'.format(self._key_prefix, routing_key)77        if routing_key not in self._events:78            self._events[routing_key] = Event()79        return self._events[routing_key].wait(timeout)80    def wait_any(self, timeout=None):81        return self._event_any.wait(timeout)82    def _on_message(self, body, message):83        if not self._running:84            return85        routing_key = message.delivery_info['routing_key']86        if routing_key in self._events:87            self._events[routing_key].set()88            self._events[routing_key].clear()89        self._event_any.set()90        self._event_any.clear()91        for handler in self._handlers[routing_key]:92            try:93                handler(body, message)94            except Exception as e:95                self._on_exception(e)96        for handler in self._handlers_for_all:97            try:98                handler(body, message)99            except Exception as e:100                self._on_exception(e)101        try:102            message.ack()103        except MessageStateError:104            pass105    def _consume(self):106        routing_key = '{0}{1}'.format(self._key_prefix, self._binding_key)107        while self._running:108            try:109                with connections[self._connection].acquire(block=True) as conn:110                    queue = Queue(exchange=self._exchange, routing_key=routing_key, channel=conn,111                                  durable=False, exclusive=True, auto_delete=True)112                    with Consumer(conn, queue, callbacks=[self._on_message]):113                        try:114                            while self._running:...

utils.py

Source:utils.py

...20    def __call__(self, *args, **kwargs):21        try:22            self._callback(*args, **kwargs)23        except Exception as e:24            self._on_exception(e)25    def _default_on_exception(self, exception):26        raise exception27class Subscription(object):28    def __init__(self, connection, exchange, binding_key, key_prefix='', reconnect_timeout=10, on_exception=None):29        self._connection = connection30        self._exchange = exchange31        self._binding_key = binding_key32        self._key_prefix = key_prefix33        self._reconnect_timeout = reconnect_timeout34        if on_exception is not None:35            if not isroutine(on_exception):36                raise ValueError('on_exception must be a function or method')37            self._on_exception = on_exception38        else:39            self._on_exception = self._default_on_exception40        self._handlers = defaultdict(list)41        self._handlers_for_all = []42        self._events = {}43        self._event_any = Event()44        self._running = False45        self._thread = None46        self.start()47    def __del__(self):48        self._running = False49        try:50            self._thread.join()51        except Exception as e:52            pass53    def _default_on_exception(self, exception):54        raise exception55    @property56    def is_alive(self):57        return self._thread is not None and self._thread.is_alive()58    def start(self):59        if not self._running:60            self._running = True61            self._thread = Thread(target=self._consume)62            self._thread.start()63    def stop(self):64        self._running = False65    def on(self, routing_key, callback, on_exception=None):66        # register a callback for the given routing key67        routing_key = '{0}{1}'.format(self._key_prefix, routing_key)68        self._handlers[routing_key].append(Handler(callback, on_exception))69        return self70    def all(self, callback, on_exception=None):71        # register a callback for all routing keys72        self._handlers_for_all.append(Handler(callback, on_exception))73        return self74    def wait(self, routing_key, timeout=None):75        # register an event wait76        routing_key = '{0}{1}'.format(self._key_prefix, routing_key)77        if routing_key not in self._events:78            self._events[routing_key] = Event()79        return self._events[routing_key].wait(timeout)80    def wait_any(self, timeout=None):81        return self._event_any.wait(timeout)82    def _on_message(self, body, message):83        if not self._running:84            return85        routing_key = message.delivery_info['routing_key']86        if routing_key in self._events:87            self._events[routing_key].set()88            self._events[routing_key].clear()89        self._event_any.set()90        self._event_any.clear()91        for handler in self._handlers[routing_key]:92            try:93                handler(body)94            except Exception as e:95                self._on_exception(e)96        for handler in self._handlers_for_all:97            try:98                handler(body)99            except Exception as e:100                self._on_exception(e)101        try:102            message.ack()103        except MessageStateError:104            pass105    def _consume(self):106        routing_key = '{0}{1}'.format(self._key_prefix, self._binding_key)107        while self._running:108            try:109                with connections[self._connection].acquire(block=True) as conn:110                    queue = Queue(exchange=self._exchange, routing_key=routing_key, channel=conn,111                                  durable=False, exclusive=True, auto_delete=True)112                    with Consumer(conn, queue, callbacks=[self._on_message]):113                        try:114                            while self._running:...

retry.py

Source:retry.py

...20            except catch_exceptions_types as ex:21                attempt += 122                if on_exception:23                    if iscoroutinefunction(on_exception):24                        await on_exception(ex, attempt)25                    else:26                        on_exception(ex, attempt)27                if attempt > times:28                    raise29                if delay is not None:30                    await asyncio.sleep(delay, loop=loop)31    return async_wrapper32def retry(times: int = 3,33          delay: Optional[float] = 0.1,34          catch_exceptions_types: CatchException = None,35          on_exception: OnException = None,36          loop=None):37    if catch_exceptions_types is None:38        catch_exceptions_types = Exception39    def retry_decorator(fn):40        if iscoroutinefunction(fn):41            return _get_retry_async_wrapper(fn,42                                            times,43                                            delay,44                                            catch_exceptions_types,45                                            on_exception,46                                            loop)47        @wraps(fn)48        def wrapper(*args, **kwargs):49            attempt = 050            while True:51                try:52                    return fn(*args, **kwargs)53                except catch_exceptions_types as ex:54                    attempt += 155                    if on_exception:56                        on_exception(ex, attempt)57                    if attempt > times:58                        raise59                    if delay is not None:60                        time.sleep(delay)61        return wrapper...

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