def schedule_call(factory_method_path, target_method_name,
run_after, serializers=None, key=None, **method_args):
"""Schedules call and lately invokes target_method.
Add this call specification to DB, and then after run_after
seconds service CallScheduler invokes the target_method.
:param factory_method_path: Full python-specific path to
factory method that creates a target object that the call will be
made against.
:param target_method_name: Name of a method which will be invoked.
:param run_after: Value in seconds.
:param serializers: map of argument names and their serializer class
paths. Use when an argument is an object of specific type, and needs
to be serialized. Example:
{ "result": "mistral.utils.serializer.ResultSerializer"}
Serializer for the object type must implement serializer interface
in mistral/utils/serializer.py
:param key: Key which can potentially be used for squashing similar
delayed calls.
:param method_args: Target method keyword arguments.
"""
ctx_serializer = context.RpcContextSerializer()
ctx = (
ctx_serializer.serialize_context(context.ctx())
if context.has_ctx() else {}
)
execution_time = (datetime.datetime.now() +
datetime.timedelta(seconds=run_after))
if serializers:
for arg_name, serializer_path in serializers.items():
if arg_name not in method_args:
raise exc.MistralException(
"Serializable method argument %s"
" not found in method_args=%s"
% (arg_name, method_args))
try:
serializer = importutils.import_class(serializer_path)()
except ImportError as e:
raise ImportError(
"Cannot import class %s: %s" % (serializer_path, e)
)
method_args[arg_name] = serializer.serialize(method_args[arg_name])
values = {
'factory_method_path': factory_method_path,
'target_method_name': target_method_name,
'execution_time': execution_time,
'auth_context': ctx,
'serializers': serializers,
'key': key,
'method_arguments': method_args,
'processing': False
}
db_api.create_delayed_call(values)
def schedule_call(factory_method_path, target_method_name,
run_after, serializers=None, **method_args):
"""Schedules call and lately invokes target_method.
Add this call specification to DB, and then after run_after
seconds service CallScheduler invokes the target_method.
:param factory_method_path: Full python-specific path to
factory method for target object construction.
:param target_method_name: Name of target object method which
will be invoked.
:param run_after: Value in seconds.
param serializers: map of argument names and their serializer class paths.
Use when an argument is an object of specific type, and needs to be
serialized. Example:
{ "result": "mistral.utils.serializer.ResultSerializer"}
Serializer for the object type must implement serializer interface
in mistral/utils/serializer.py
:param method_args: Target method keyword arguments.
"""
ctx_serializer = context.RpcContextSerializer(
context.JsonPayloadSerializer()
)
ctx = (
ctx_serializer.serialize_context(context.ctx())
if context.has_ctx() else {}
)
execution_time = (datetime.datetime.now() +
datetime.timedelta(seconds=run_after))
if serializers:
for arg_name, serializer_path in serializers.items():
if arg_name not in method_args:
raise exc.MistralException(
"Serializable method argument %s"
" not found in method_args=%s"
% (arg_name, method_args))
try:
serializer = importutils.import_class(serializer_path)()
except ImportError as e:
raise ImportError("Cannot import class %s: %s"
% (serializer_path, e))
method_args[arg_name] = serializer.serialize(
method_args[arg_name]
)
values = {
'factory_method_path': factory_method_path,
'target_method_name': target_method_name,
'execution_time': execution_time,
'auth_context': ctx,
'serializers': serializers,
'method_arguments': method_args,
'processing': False
}
db_api.create_delayed_call(values)
def schedule_call(factory_method_path,
target_method_name,
run_after,
serializers=None,
**method_args):
"""Add this call specification to DB, and then after run_after
seconds service CallScheduler invokes the target_method.
:param factory_method_path: Full python-specific path to
factory method for target object construction.
:param target_method_name: Name of target object method which
will be invoked.
:param run_after: Value in seconds.
param serializers: map of argument names and their serializer class paths.
Use when an argument is an object of specific type, and needs to be
serialized. Example:
{ "result": "mistral.utils.serializer.ResultSerializer"}
Serializer for the object type must implement serializer interface
in mistral/utils/serializer.py
:param method_args: Target method keyword arguments.
"""
ctx = context.ctx().to_dict() if context.has_ctx() else {}
execution_time = (datetime.datetime.now() +
datetime.timedelta(seconds=run_after))
if serializers:
for arg_name, serializer_path in serializers.items():
if arg_name not in method_args:
raise exc.MistralException("Serializable method argument %s"
" not found in method_args=%s" %
(arg_name, method_args))
try:
serializer = importutils.import_class(serializer_path)()
except ImportError as e:
raise ImportError("Cannot import class %s: %s" %
(serializer_path, e))
method_args[arg_name] = serializer.serialize(method_args[arg_name])
values = {
'factory_method_path': factory_method_path,
'target_method_name': target_method_name,
'execution_time': execution_time,
'auth_context': ctx,
'serializers': serializers,
'method_arguments': method_args
}
db_api.create_delayed_call(values)
def test_processing_true_does_not_return_in_get_delayed_calls_to_start(
self, method):
method.side_effect = self.target_method
values = {
'factory_method_path': None,
'target_method_name': TARGET_METHOD_PATH,
'execution_time': get_time_delay(),
'auth_context': None,
'serializers': None,
'method_arguments': None,
'processing': True
}
call = db_api.create_delayed_call(values)
calls = db_api.get_delayed_calls_to_start(get_time_delay(10))
self.assertEqual(0, len(calls))
db_api.delete_delayed_call(call.id)
def test_processing_true_does_not_return_in_get_delayed_calls_to_start(
self,
method):
method.side_effect = self.target_method
values = {
'factory_method_path': None,
'target_method_name': TARGET_METHOD_PATH,
'execution_time': get_time_delay(),
'auth_context': None,
'serializers': None,
'method_arguments': None,
'processing': True
}
call = db_api.create_delayed_call(values)
calls = db_api.get_delayed_calls_to_start(get_time_delay(10))
self.assertEqual(0, len(calls))
db_api.delete_delayed_call(call.id)
def test_processing_true_does_not_return_in_get_delayed_calls_to_start(
self, method):
execution_time = (datetime.datetime.now() +
datetime.timedelta(seconds=DELAY))
values = {
'factory_method_path': None,
'target_method_name': FACTORY_METHOD_PATH,
'execution_time': execution_time,
'auth_context': None,
'serializers': None,
'method_arguments': None,
'processing': True
}
call = db_api.create_delayed_call(values)
time_filter = datetime.datetime.now() + datetime.timedelta(seconds=10)
calls = db_api.get_delayed_calls_to_start(time_filter)
self.assertEqual(0, len(calls))
db_api.delete_delayed_call(call.id)
def test_processing_true_does_not_return_in_get_delayed_calls_to_start(
self,
method):
execution_time = (datetime.datetime.now() +
datetime.timedelta(seconds=DELAY))
values = {
'factory_method_path': None,
'target_method_name': FACTORY_METHOD_PATH,
'execution_time': execution_time,
'auth_context': None,
'serializers': None,
'method_arguments': None,
'processing': True
}
call = db_api.create_delayed_call(values)
time_filter = datetime.datetime.now() + datetime.timedelta(seconds=10)
calls = db_api.get_delayed_calls_to_start(time_filter)
self.assertEqual(0, len(calls))
db_api.delete_delayed_call(call.id)
