def _json_dump_recursion_helper(metadata):
"""See _get_json_dump docstring."""
if isinstance(metadata, list):
return [_json_dump_recursion_helper(item) for item in metadata]
if not isinstance(metadata, dict):
return resource_util.convert_to_json_parsable_type(metadata)
# Sort by key to make sure dictionary always prints in correct order.
formatted_dict = collections.OrderedDict(sorted(metadata.items()))
for key, value in formatted_dict.items():
if isinstance(value, dict):
# Recursively handle dictionaries.
formatted_dict[key] = _json_dump_recursion_helper(value)
elif isinstance(value, list):
# Recursively handled lists, which may contain more dicts, like ACLs.
formatted_list = [
_json_dump_recursion_helper(item) for item in value
]
if formatted_list:
# Ignore empty lists.
formatted_dict[key] = formatted_list
elif value or resource_util.should_preserve_falsy_metadata_value(
value):
formatted_dict[key] = resource_util.convert_to_json_parsable_type(
value)
return formatted_dict
def _json_dump_recursion_helper(metadata):
"""See _get_json_dump docstring."""
if isinstance(metadata, list):
return [_json_dump_recursion_helper(item) for item in metadata]
if not isinstance(metadata, messages.Message):
# Recursive function down the stack may have been processing a list.
return resource_util.convert_to_json_parsable_type(metadata)
# Construct dictionary from Apitools object.
formatted_dict = collections.OrderedDict()
# Similar to Apitools messages.py Message __repr__ implementation.
for field in sorted(metadata.all_fields(), key=lambda f: f.name):
value = metadata.get_assigned_value(field.name)
if isinstance(value, messages.Message):
# Recursively handled nested Apitools objects.
formatted_dict[field.name] = _json_dump_recursion_helper(value)
elif isinstance(value, list):
# Recursively handled lists, which may contain Apitools objects.
# Example: ACL list.
formatted_list = [
_json_dump_recursion_helper(item) for item in value
]
if formatted_list:
# Ignore empty lists.
formatted_dict[field.name] = formatted_list
elif value or resource_util.should_preserve_falsy_metadata_value(
value):
# 0, 0.0, and False are acceptables Falsy-types. Lists handled later.
formatted_dict[field.name] = (
resource_util.convert_to_json_parsable_type(value))
return formatted_dict
def test_preserves_false_metadata(self):
self.assertTrue(
resource_util.should_preserve_falsy_metadata_value(False))
def test_does_not_preserve_unexpected_falsy_metadata(self):
self.assertFalse(resource_util.should_preserve_falsy_metadata_value(
[]))
def test_preserves_zero_float_metadata(self):
self.assertTrue(
resource_util.should_preserve_falsy_metadata_value(0.0))
