def stub(*args, **kwargs):
context = self.context
args = utils.convert_input_data(args)
kwargs = utils.convert_input_data(kwargs)
limit_func = context('#iter', self.engine)
return utils.convert_output_data(
context(item, self.engine, self.sender)(*args, **kwargs),
limit_func, self.engine)
def stub(*args, **kwargs):
context = self.context
args = utils.convert_input_data(args)
kwargs = utils.convert_input_data(kwargs)
limit_func = context('#iter', self.engine)
return utils.convert_output_data(
context(item, self.engine, self.sender)(*args, **kwargs),
limit_func, self.engine)
def __call__(self, __expression, *args, **kwargs):
context = self.context.create_child_context()
args = utils.convert_input_data(args)
for i, arg_value in enumerate(args):
context['$' + str(i + 1)] = arg_value
kwargs = utils.convert_input_data(kwargs)
for arg_name, arg_value in six.iteritems(kwargs):
context['$' + arg_name] = arg_value
parsed = self.engine(__expression)
res = parsed.evaluate(context=context)
limit_func = context('#iter', self.engine)
return utils.convert_output_data(res, limit_func, self.engine)
def __call__(self, __expression, *args, **kwargs):
context = self.context.create_child_context()
args = utils.convert_input_data(args)
for i, arg_value in enumerate(args):
context['$' + str(i + 1)] = arg_value
kwargs = utils.convert_input_data(kwargs)
for arg_name, arg_value in six.iteritems(kwargs):
context['$' + arg_name] = arg_value
parsed = self.engine(__expression)
res = parsed.evaluate(context=context)
limit_func = context('#iter', self.engine)
return utils.convert_output_data(res, limit_func, self.engine)
def _setup_context(data, context, finalizer, convention):
if context is None:
context = contexts.Context(
convention=convention or conventions.CamelCaseConvention())
if finalizer is None:
@specs.parameter('iterator', yaqltypes.Iterable())
@specs.name('#iter')
def limit(iterator):
return iterator
@specs.inject('limiter', yaqltypes.Delegate('#iter'))
@specs.inject('engine', yaqltypes.Engine())
@specs.name('#finalize')
def finalize(obj, limiter, engine):
return utils.convert_output_data(obj, limiter, engine)
context.register_function(limit)
context.register_function(finalize)
else:
context.register_function(finalizer)
if data is not utils.NO_VALUE:
context['$'] = utils.convert_input_data(data)
return context
def _setup_context(data, context, finalizer, convention):
if context is None:
context = contexts.Context(
convention=convention or conventions.CamelCaseConvention())
if finalizer is None:
@specs.parameter('iterator', yaqltypes.Iterable())
@specs.name('#iter')
def limit(iterator):
return iterator
@specs.inject('limiter', yaqltypes.Delegate('#iter'))
@specs.inject('engine', yaqltypes.Engine())
@specs.name('#finalize')
def finalize(obj, limiter, engine):
if engine.options.get('yaql.convertOutputData', True):
return utils.convert_output_data(obj, limiter, engine)
return obj
context.register_function(limit)
context.register_function(finalize)
else:
context.register_function(finalizer)
if data is not utils.NO_VALUE:
context['$'] = utils.convert_input_data(data)
return context
def evaluate(self, data=utils.NO_VALUE, context=None):
if context is None or context is utils.NO_VALUE:
context = yaql.create_context()
if data is not utils.NO_VALUE:
if self.engine.options.get('yaql.convertInputData', True):
context['$'] = utils.convert_input_data(data)
else:
context['$'] = data
return self(utils.NO_VALUE, context, self.engine)
def evaluate(self, data=utils.NO_VALUE, context=None):
if context is None or context is utils.NO_VALUE:
context = yaql.create_context()
if data is not utils.NO_VALUE:
if self.engine.options.get('yaql.convertInputData', True):
context['$'] = utils.convert_input_data(data)
else:
context['$'] = data
return self(utils.NO_VALUE, context, self.engine)
def load_data(data_file, context):
try:
json_str = open(os.path.expanduser(data_file)).read()
except IOError as e:
print("Unable to read data file '{0}': {1}".format(data_file,
e.strerror))
return
try:
data = json.loads(json_str)
except Exception as e:
print('Unable to parse data: ' + e.message)
return
context['$'] = utils.convert_input_data(data)
print('Data from file {0} loaded into context'.format(data_file))
def contextualize(cls, data):
ctx = cls._root_ctx.create_child_context()
# Some yaql expressions (e.g. distinct()) refer to hash value of variable.
# But some built-in Python type values (e.g. list and dict) don't have __hash__() method.
# The convert_input_data method parses specified variable and convert it to hashable one.
if isinstance(data, yaql_utils.SequenceType) or isinstance(data, yaql_utils.MappingType):
ctx["__vars"] = yaql_utils.convert_input_data(data)
else:
ctx["__vars"] = data or {}
ctx["__state"] = ctx["__vars"].get("__state")
ctx["__current_task"] = ctx["__vars"].get("__current_task")
ctx["__current_item"] = ctx["__vars"].get("__current_item")
return ctx
def get_yaql_context(data_context):
global ROOT_YAQL_CONTEXT
if not ROOT_YAQL_CONTEXT:
ROOT_YAQL_CONTEXT = yaql.create_context()
_register_yaql_functions(ROOT_YAQL_CONTEXT)
new_ctx = ROOT_YAQL_CONTEXT.create_child_context()
new_ctx['$'] = yaql_utils.convert_input_data(data_context)
if isinstance(data_context, dict):
new_ctx['__env'] = data_context.get('__env')
new_ctx['__execution'] = data_context.get('__execution')
new_ctx['__task_execution'] = data_context.get('__task_execution')
return new_ctx
def get_yaql_context(data_context):
global ROOT_YAQL_CONTEXT
if not ROOT_YAQL_CONTEXT:
ROOT_YAQL_CONTEXT = yaql.create_context()
_register_yaql_functions(ROOT_YAQL_CONTEXT)
new_ctx = ROOT_YAQL_CONTEXT.create_child_context()
new_ctx['$'] = (
data_context if not cfg.CONF.yaql.convert_input_data
else yaql_utils.convert_input_data(data_context)
)
if isinstance(data_context, dict):
new_ctx['__env'] = data_context.get('__env')
new_ctx['__execution'] = data_context.get('__execution')
new_ctx['__task_execution'] = data_context.get('__task_execution')
return new_ctx
def evaluate(self, data=utils.NO_VALUE, context=None):
if context is None or context is utils.NO_VALUE:
context = yaql.create_context()
if data is not utils.NO_VALUE:
context['$'] = utils.convert_input_data(data)
return self(utils.NO_VALUE, context, self.engine)
def evaluate(self, data=utils.NO_VALUE, context=None):
if context is None or context is utils.NO_VALUE:
context = yaql.create_context()
if data is not utils.NO_VALUE:
context['$'] = utils.convert_input_data(data)
return self(utils.NO_VALUE, context, self.engine)
