def testCreatingInMemoryStoreUsingConfig(self):
"""Full test of `construct_eventstore(...)`."""
config = configparser.ConfigParser()
config.add_section("general")
config.set("general", "storage-backend", "estoresection")
config.add_section("estoresection")
config.set("estoresection", "class",
"rewind.server.eventstores.InMemoryEventStore")
estore = rconfig.construct_eventstore(config)
self.assertIsInstance(estore, eventstores.InMemoryEventStore)
def testCreatingInMemoryStoreUsingConfigWithGivenSection(self):
"""Test full test of `construct_eventstore(...)` given a section."""
config = configparser.ConfigParser()
config.add_section("estoresection")
# The 'general' section need not to be defined here since a section is
# given to `construct_eventstore(...)` below.
config.set("estoresection", "class",
"rewind.server.eventstores.InMemoryEventStore")
estore = rconfig.construct_eventstore(config, "estoresection")
self.assertIsInstance(estore, eventstores.InMemoryEventStore)
def testCreatingInMemoryStoreUsingConfigWithGivenSection(self):
"""Test full test of `construct_eventstore(...)` given a section."""
config = configparser.ConfigParser()
config.add_section("estoresection")
# The 'general' section need not to be defined here since a section is
# given to `construct_eventstore(...)` below.
config.set("estoresection", "class",
"rewind.server.eventstores.InMemoryEventStore")
estore = rconfig.construct_eventstore(config, "estoresection")
self.assertIsInstance(estore, eventstores.InMemoryEventStore)
def testCreatingInMemoryStoreUsingConfig(self):
"""Full test of `construct_eventstore(...)`."""
config = configparser.ConfigParser()
config.add_section("general")
config.set("general", "storage-backend", "estoresection")
config.add_section("estoresection")
config.set("estoresection", "class",
"rewind.server.eventstores.InMemoryEventStore")
estore = rconfig.construct_eventstore(config)
self.assertIsInstance(estore, eventstores.InMemoryEventStore)
def _testCreateCombinedRotatedLogFromConfig(self, defaults):
"""Creating combined rotated store from config.
This class function is a helper for the actual tests.
Parameters:
defaults -- whether default values should be used or not for
`SyncedRotationEventStores` instantiation. Can be used to
toggle execution of different conditional branches to
improve coverage.
"""
path = tempfile.mkdtemp()
print("Using temporary directory:", path)
config = configparser.ConfigParser()
config.add_section("rotated_sqlite")
config.set("rotated_sqlite", "class",
"rewind.server.eventstores.RotatedEventStore")
config.set("rotated_sqlite", "realclass",
"rewind.server.eventstores.SQLiteEventStore")
config.set("rotated_sqlite", "prefix", "sqlite")
config.set("rotated_sqlite", "path", path)
config.add_section("rotated_appendlog")
config.set("rotated_appendlog", "class",
"rewind.server.eventstores.RotatedEventStore")
config.set("rotated_appendlog", "realclass",
"rewind.server.eventstores.LogEventStore")
config.set("rotated_appendlog", "prefix", "appendlog")
config.set("rotated_appendlog", "path", path)
config.add_section("synced_rotator")
config.set("synced_rotator", "class",
"rewind.server.eventstores.SyncedRotationEventStores")
config.set("synced_rotator", "storage-backends",
"rotated_sqlite rotated_appendlog")
if not defaults:
config.set("synced_rotator", "events_per_batch", "25000")
# Random option to have coverage of logging of unknown options
config.set("synced_rotator", "foo", "bar")
estore = rconfig.construct_eventstore(config, "synced_rotator")
self.assertIsInstance(estore, eventstores.SyncedRotationEventStores)
shutil.rmtree(path)
def testCreatingSyncedRotatedLogFromConfigFromConfig(self):
"""Create a `RotatedEventStore` from config."""
path = tempfile.mkdtemp()
print("Using temporary directory:", path)
config = configparser.ConfigParser()
config.add_section("rotated_sqlite")
config.set("rotated_sqlite", "class",
"rewind.server.eventstores.RotatedEventStore")
config.set("rotated_sqlite", "realclass",
"rewind.server.eventstores.SQLiteEventStore")
config.set("rotated_sqlite", "prefix", "sqlite")
config.set("rotated_sqlite", "path", path)
estore = rconfig.construct_eventstore(config, "rotated_sqlite")
self.assertIsInstance(estore, eventstores.RotatedEventStore)
shutil.rmtree(path)
def from_config(config, **options):
"""Instantiate an `SyncedRotationEventStores` from config.
Parameters:
config -- the configuration file options read from file(s).
**options -- various options given to the specific event store. Shall
not be used with this event store. Warning will be logged
for every extra non-recognized option. The only required
key to this function is 'path'.
returns -- a newly instantiated `SyncedRotationEventStores`.
"""
required_args = ('storage-backends', )
optional_args = {'events_per_batch': 25000}
rconfig.check_config_options("SyncedRotationEventStores",
required_args,
tuple(optional_args.keys()), options)
if "events_per_batch" in options:
events_per_batch = int(options["events_per_batch"])
else:
events_per_batch = optional_args["events_per_batch"]
estore = SyncedRotationEventStores(events_per_batch)
for section in options['storage-backends'].split(' '):
try:
substore = rconfig.construct_eventstore(config, section)
estore.add_rotated_store(substore)
except Exception as e:
_logger.exception(
'Could not instantiate substore from'
' section %s', section)
estore.close()
raise
return estore
def from_config(config, **options):
"""Instantiate an `SyncedRotationEventStores` from config.
Parameters:
config -- the configuration file options read from file(s).
**options -- various options given to the specific event store. Shall
not be used with this event store. Warning will be logged
for every extra non-recognized option. The only required
key to this function is 'path'.
returns -- a newly instantiated `SyncedRotationEventStores`.
"""
required_args = ('storage-backends',)
optional_args = {'events_per_batch': 25000}
rconfig.check_config_options("SyncedRotationEventStores",
required_args,
tuple(optional_args.keys()), options)
if "events_per_batch" in options:
events_per_batch = int(options["events_per_batch"])
else:
events_per_batch = optional_args["events_per_batch"]
estore = SyncedRotationEventStores(events_per_batch)
for section in options['storage-backends'].split(' '):
try:
substore = rconfig.construct_eventstore(config, section)
estore.add_rotated_store(substore)
except Exception as e:
_logger.exception('Could not instantiate substore from'
' section %s', section)
estore.close()
raise
return estore
def testInMemoryFallback(self):
"""Test `construct_eventstore(...)` defaults to in-memory estore."""
estore = rconfig.construct_eventstore(None)
self.assertIsInstance(estore, eventstores.InMemoryEventStore)
def testInMemoryFallback(self):
"""Test `construct_eventstore(...)` defaults to in-memory estore."""
estore = rconfig.construct_eventstore(None)
self.assertIsInstance(estore, eventstores.InMemoryEventStore)
def run(options, exit_codeword=None):
"""Actually execute the program.
Calling this method can be done from tests to simulate executing the
application from command line.
Parameters:
options -- `optionparser` from config file.
exit_codeword -- an optional exit_message that will shut down Rewind. Used
for testing.
returns -- exit code for the application. Non-zero for errors.
"""
QUERY_ENDP_OPT = 'query-bind-endpoint'
STREAM_ENDP_OPT = 'streaming-bind-endpoint'
ZMQ_NTHREADS = "zmq-nthreads"
if not options.has_section(config.DEFAULT_SECTION):
msg = "Missing default section, `{0}`."
fmsg = msg.format(config.DEFAULT_SECTION)
raise config.ConfigurationError(fmsg)
if not options.has_option(config.DEFAULT_SECTION, QUERY_ENDP_OPT):
msg = "Missing (query) bind endpoint in option file: {0}:{1}"
fmsg = msg.format(config.DEFAULT_SECTION, QUERY_ENDP_OPT)
raise config.ConfigurationError(fmsg)
queryendp = options.get(config.DEFAULT_SECTION, QUERY_ENDP_OPT).split(",")
streamendp = _get_with_fallback(options, config.DEFAULT_SECTION,
STREAM_ENDP_OPT, '').split(",")
queryendp = filter(lambda x: x.strip(), queryendp)
streamendp = filter(lambda x: x.strip(), streamendp)
try:
eventstore = config.construct_eventstore(options)
except config.ConfigurationError as e:
_logger.exception("Could instantiate event store from config file.")
raise
zmq_nthreads = _get_with_fallback(options, config.DEFAULT_SECTION,
ZMQ_NTHREADS, '3')
try:
zmq_nthreads = int(zmq_nthreads)
except ValueError:
msg = "{0}:{1} must be an integer".format(config.DEFAULT_SECTION,
ZMQ_NTHREADS)
_logger.fatal(msg)
return 1
with _zmq_context_context(zmq_nthreads) as context, \
_zmq_socket_context(context, zmq.REP, queryendp) as querysock, \
_zmq_socket_context(context, zmq.PUB,
streamendp) as streamsock:
# Executing the program in the context of ZeroMQ context as well as
# ZeroMQ sockets. Using with here to make sure are correctly closing
# things in the correct order, particularly also if we have an
# exception or similar.
runner = _RewindRunner(eventstore, querysock, streamsock,
(exit_codeword.encode()
if exit_codeword
else None))
runner.run()
return 0
