def test_event_handler_raises_when_called_after_start():
from bigchaindb.events import Exchange, POISON_PILL
exchange = Exchange()
publisher_queue = exchange.get_publisher_queue()
publisher_queue.put(POISON_PILL)
exchange.run()
with pytest.raises(RuntimeError):
exchange.get_subscriber_queue()
def test_event_handler_raises_when_called_after_start():
from bigchaindb.events import Exchange, POISON_PILL
exchange = Exchange()
publisher_queue = exchange.get_publisher_queue()
publisher_queue.put(POISON_PILL)
exchange.run()
with pytest.raises(RuntimeError):
exchange.get_subscriber_queue()
def test_exchange_stops_with_poison_pill():
from bigchaindb.events import EventTypes, Event, Exchange, POISON_PILL
# create and event
event_data = {'msg': 'some data'}
event = Event(EventTypes.BLOCK_VALID, event_data)
# create the events pub sub
exchange = Exchange()
publisher_queue = exchange.get_publisher_queue()
# push and event to the queue
publisher_queue.put(event)
publisher_queue.put(POISON_PILL)
exchange.run()
assert publisher_queue.qsize() == 0
def test_exchange_stops_with_poison_pill():
from bigchaindb.events import EventTypes, Event, Exchange, POISON_PILL
# create and event
event_data = {'msg': 'some data'}
event = Event(EventTypes.BLOCK_VALID, event_data)
# create the events pub sub
exchange = Exchange()
publisher_queue = exchange.get_publisher_queue()
# push and event to the queue
publisher_queue.put(event)
publisher_queue.put(POISON_PILL)
exchange.run()
assert publisher_queue.qsize() == 0
def start():
logger.info('Initializing BigchainDB...')
# Create a Exchange object.
# The events queue needs to be initialized once and shared between
# processes. This seems the best way to do it
# At this point only the election processs and the event consumer require
# this queue.
exchange = Exchange()
# start the processes
logger.info('Starting block')
block.start()
logger.info('Starting voter')
vote.start()
logger.info('Starting stale transaction monitor')
stale.start()
logger.info('Starting election')
election.start(events_queue=exchange.get_publisher_queue())
# start the web api
app_server = server.create_server(settings=bigchaindb.config['server'],
log_config=bigchaindb.config['log'])
p_webapi = mp.Process(name='webapi', target=app_server.run)
p_webapi.start()
logger.info('WebSocket server started')
p_websocket_server = mp.Process(name='ws',
target=websocket_server.start,
args=(exchange.get_subscriber_queue(
EventTypes.BLOCK_VALID), ))
p_websocket_server.start()
# start message
logger.info(BANNER.format(bigchaindb.config['server']['bind']))
start_events_plugins(exchange)
exchange.run()
def start():
logger.info('Initializing BigchainDB...')
# Create a Exchange object.
# The events queue needs to be initialized once and shared between
# processes. This seems the best way to do it
# At this point only the election processs and the event consumer require
# this queue.
exchange = Exchange()
# start the processes
logger.info('Starting block')
block.start()
logger.info('Starting voter')
vote.start()
logger.info('Starting stale transaction monitor')
stale.start()
logger.info('Starting election')
election.start(events_queue=exchange.get_publisher_queue())
# start the web api
app_server = server.create_server(settings=bigchaindb.config['server'],
log_config=bigchaindb.config['log'])
p_webapi = mp.Process(name='webapi', target=app_server.run)
p_webapi.start()
logger.info('WebSocket server started')
p_websocket_server = mp.Process(name='ws',
target=websocket_server.start,
args=(exchange.get_subscriber_queue(EventTypes.BLOCK_VALID),))
p_websocket_server.start()
# start message
logger.info(BANNER.format(bigchaindb.config['server']['bind']))
start_events_plugins(exchange)
exchange.run()
