def test_mock_value_original_type_message():
subfields = collections.OrderedDict((
('foo', make_field(name='foo', type='TYPE_INT32')),
('bar', make_field(name='bar', type='TYPE_STRING'))
))
message = wrappers.MessageType(
fields=subfields,
message_pb=descriptor_pb2.DescriptorProto(name='Message', field=[
i.field_pb for i in subfields.values()
]),
meta=metadata.Metadata(address=metadata.Address(
module='bogus',
name='Message',
)),
nested_enums={},
nested_messages={},
)
field = make_field(
type='TYPE_MESSAGE',
type_name='bogus.Message',
message=message,
)
mock = field.mock_value_original_type
assert mock == {"foo": 324, "bar": "bar_value"}
# Messages by definition aren't primitive
with pytest.raises(TypeError):
field.primitive_mock()
# Special case for map entries
entry_msg = make_message(
name='MessageEntry',
fields=(
make_field(name='key', type='TYPE_STRING'),
make_field(name='value', type='TYPE_STRING'),
),
options=descriptor_pb2.MessageOptions(map_entry=True),
)
entry_field = make_field(
name="messages",
type_name="stuff.MessageEntry",
message=entry_msg,
label=3,
type='TYPE_MESSAGE',
)
assert entry_field.mock_value_original_type == {}
def test_type_message():
T = descriptor_pb2.FieldDescriptorProto.Type
message = wrappers.MessageType(
fields={},
nested_messages={},
nested_enums={},
message_pb=descriptor_pb2.DescriptorProto(),
)
field = make_field(
type=T.Value('TYPE_MESSAGE'),
type_name='bogus.Message',
message=message,
)
assert field.type == message
def testCopyToProto_TypeError(self):
file_proto = descriptor_pb2.FileDescriptorProto()
self.assertRaises(TypeError,
unittest_pb2.TestEmptyMessage.DESCRIPTOR.CopyToProto,
file_proto)
self.assertRaises(TypeError,
unittest_pb2.ForeignEnum.DESCRIPTOR.CopyToProto,
file_proto)
self.assertRaises(TypeError,
unittest_pb2.TestService.DESCRIPTOR.CopyToProto,
file_proto)
proto = descriptor_pb2.DescriptorProto()
self.assertRaises(TypeError,
unittest_import_pb2.DESCRIPTOR.CopyToProto, proto)
def test_field_not_primitive():
Type = descriptor_pb2.FieldDescriptorProto.Type
message = wrappers.MessageType(
fields={},
nested_messages={},
nested_enums={},
message_pb=descriptor_pb2.DescriptorProto(),
)
non_primitive_field = make_field(
type=Type.Value('TYPE_MESSAGE'),
type_name='bogus.Message',
message=message,
)
assert not non_primitive_field.is_primitive
def test_operation_meta():
lro_response = wrappers.MessageType(
fields={},
nested_messages={},
nested_enums={},
message_pb=descriptor_pb2.DescriptorProto(name='LroResponse'),
meta=metadata.Metadata(address=metadata.Address(
name='LroResponse',
module='foo',
)),
)
operation = wrappers.OperationType(lro_response=lro_response)
assert 'representing a long-running operation' in operation.meta.doc
assert ':class:`~.foo.LroResponse`' in operation.meta.doc
def testAdjustReservedRange(self):
"""AdjustReservedRange removes specified skip_reserved_numbers."""
desc_pb_text = """
reserved_range {
start: 41
end: 41
}
reserved_range {
start: 42
end: 42
}
reserved_range {
start: 43
end: 44
}
reserved_range {
start: 50
end: 51
}
"""
desc = descriptor_pb2.DescriptorProto()
text_format.Merge(desc_pb_text, desc)
target = descriptor_pb2.DescriptorProto()
merge_active_shadow.AdjustReservedRange(target, desc.reserved_range,
[42, 43])
target_pb_text = """
reserved_range {
start: 41
end: 41
}
reserved_range {
start: 50
end: 51
}
"""
self.assertTextProtoEq(target_pb_text, str(target))
def make_message(name: str, package: str = 'foo.bar.v1', module: str = 'baz',
fields: Sequence[wrappers.Field] = (),
) -> wrappers.MessageType:
message_pb = descriptor_pb2.DescriptorProto(
name=name,
field=[i.field_pb for i in fields],
)
return wrappers.MessageType(
message_pb=message_pb,
fields=collections.OrderedDict((i.name, i) for i in fields),
meta=metadata.Metadata(address=metadata.Address(
package=tuple(package.split('.')),
module=module,
)),
)
def make_message_pb2(
name: str,
fields: tuple = (),
nested_type: tuple = (),
enum_type: tuple = (),
options: desc.MessageOptions = None,
**kwargs,
) -> desc.DescriptorProto:
return desc.DescriptorProto(
name=name,
field=fields,
nested_type=nested_type,
enum_type=enum_type,
options=options,
**kwargs,
)
def testJsonName(self):
descriptor_proto = descriptor_pb2.DescriptorProto()
descriptor_proto.name = 'TestJsonName'
names = ['field_name', 'fieldName', 'FieldName',
'_field_name', 'FIELD_NAME', 'json_name']
json_names = ['fieldName', 'fieldName', 'FieldName',
'FieldName', 'FIELDNAME', '@type']
for index in range(len(names)):
field = descriptor_proto.field.add()
field.number = index + 1
field.name = names[index]
field.json_name = '@type'
result = descriptor.MakeDescriptor(descriptor_proto)
for index in range(len(json_names)):
self.assertEqual(result.fields[index].json_name,
json_names[index])
def get_message(dot_path: str) -> wrappers.MessageType:
# Note: The `dot_path` here is distinct from the canonical proto path
# because it includes the module, which the proto path does not.
#
# So, if trying to test the DescriptorProto message here, the path
# would be google.protobuf.descriptor.DescriptorProto (whereas the proto
# path is just google.protobuf.DescriptorProto).
pieces = dot_path.split('.')
pkg, module, name = pieces[:-2], pieces[-2], pieces[-1]
return wrappers.MessageType(
fields={},
message_pb=descriptor_pb2.DescriptorProto(name=name),
meta=metadata.Metadata(address=metadata.Address(
package=pkg,
module=module,
)),
)
def state():
try:
request_debug("Get slave state", request)
mesos_handler = SlaveHttp.get_mesos_handler()
state_json = json.dumps({
'version': mesos_handler.MESOS_VERSION,
'resources': {},
'attributes': {},
'flags': {},
'frameworks': [],
'completed_frameworks': [],
})
if True:
# if request.is_json:
resp = Response(state_json,
status=200,
mimetype="application/json")
else:
try:
descriptor_proto = descriptor_pb2.DescriptorProto()
descriptor_proto.name = "state"
descriptor_proto.field.add(
name='version',
number=1,
type=descriptor_pb2.FieldDescriptorProto.TYPE_STRING,
label=descriptor_pb2.FieldDescriptorProto.LABEL_OPTIONAL)
desc = descriptor.MakeDescriptor(descriptor_proto)
clazz = reflection.MakeClass(desc)
msg = clazz(version=mesos_handler.MESOS_VERSION)
ser_msg = msg.SerializeToString()
logger.info("state content=%s" % ser_msg)
# msg = json_format.Parse(state_json, xxx_pb2.Event(), ignore_unknown_fields=False)
resp = Response(ser_msg,
status=200,
mimetype="application/x-protobuf")
except Exception as se:
msg = "Exception: %s" % se
logger.error(msg)
return Response(msg, status=500)
return resp
except Exception as e:
msg = "Exception handling: %s" % (request.url_rule, e)
logger.error(msg)
return Response(msg, status=500)
def make_message(name: str, package: str = 'foo.bar.v1', module: str = 'baz',
fields: typing.Sequence[wrappers.Field] = (),
meta: metadata.Metadata = None,
options: descriptor_pb2.MethodOptions = None,
) -> wrappers.MessageType:
message_pb = descriptor_pb2.DescriptorProto(
name=name,
field=[i.field_pb for i in fields],
options=options,
)
return wrappers.MessageType(
message_pb=message_pb,
fields=collections.OrderedDict((i.name, i) for i in fields),
nested_messages={},
nested_enums={},
meta=meta or metadata.Metadata(address=metadata.Address(
name=name,
package=tuple(package.split('.')),
module=module,
)),
)
def test_mock_value_message():
subfields = collections.OrderedDict(
(('foo', make_field(name='foo', type='TYPE_INT32')),
('bar', make_field(name='bar', type='TYPE_STRING'))))
message = wrappers.MessageType(
fields=subfields,
message_pb=descriptor_pb2.DescriptorProto(
name='Message', field=[i.field_pb for i in subfields.values()]),
meta=metadata.Metadata(address=metadata.Address(
module='bogus',
name='Message',
)),
nested_enums={},
nested_messages={},
)
field = make_field(
type='TYPE_MESSAGE',
type_name='bogus.Message',
message=message,
)
assert field.mock_value == 'bogus.Message(foo=324)'
def test_proto_builder_constructor():
sentinel_message = descriptor_pb2.DescriptorProto()
sentinel_enum = descriptor_pb2.EnumDescriptorProto()
sentinel_service = descriptor_pb2.ServiceDescriptorProto()
# Create a file descriptor proto. It does not matter that none
# of the sentinels have actual data because this test just ensures
# they are sent off to the correct methods unmodified.
fdp = make_file_pb2(
messages=(sentinel_message, ),
enums=(sentinel_enum, ),
services=(sentinel_service, ),
)
# Test the load function.
with mock.patch.object(api._ProtoBuilder, '_load_children') as lc:
pb = api._ProtoBuilder(
fdp,
file_to_generate=True,
naming=make_naming(),
)
# There should be three total calls to load the different types
# of children.
assert lc.call_count == 3
# The enum type should come first.
_, args, _ = lc.mock_calls[0]
assert args[0][0] == sentinel_enum
assert args[1] == pb._load_enum
# The message type should come second.
_, args, _ = lc.mock_calls[1]
assert args[0][0] == sentinel_message
assert args[1] == pb._load_message
# The services should come third.
_, args, _ = lc.mock_calls[2]
assert args[0][0] == sentinel_service
assert args[1] == pb._load_service
def test_mock_value_recursive(mock_method, expected):
# The elaborate setup is an unfortunate requirement.
file_pb = descriptor_pb2.FileDescriptorProto(
name="turtle.proto",
package="animalia.chordata.v2",
message_type=(
descriptor_pb2.DescriptorProto(
# It's turtles all the way down ;)
name="Turtle",
field=(descriptor_pb2.FieldDescriptorProto(
name="turtle",
type="TYPE_MESSAGE",
type_name=".animalia.chordata.v2.Turtle",
number=1,
), ),
), ),
)
my_api = api.API.build([file_pb], package="animalia.chordata.v2")
turtle_field = my_api.messages["animalia.chordata.v2.Turtle"].fields[
"turtle"]
# If not handled properly, this will run forever and eventually OOM.
actual = getattr(turtle_field, mock_method)
assert actual == expected
def test_map_field_name_disambiguation():
squid_file_pb = descriptor_pb2.FileDescriptorProto(
name="mollusc.proto",
package="animalia.mollusca.v2",
message_type=(descriptor_pb2.DescriptorProto(name="Mollusc", ), ),
)
method_types_file_pb = descriptor_pb2.FileDescriptorProto(
name="mollusc_service.proto",
package="animalia.mollusca.v2",
message_type=(
descriptor_pb2.DescriptorProto(
name="CreateMolluscRequest",
field=(
descriptor_pb2.FieldDescriptorProto(
name="mollusc",
type="TYPE_MESSAGE",
type_name=".animalia.mollusca.v2.Mollusc",
number=1,
),
descriptor_pb2.FieldDescriptorProto(
name="molluscs_map",
type="TYPE_MESSAGE",
number=2,
type_name=
".animalia.mollusca.v2.CreateMolluscRequest.MolluscsMapEntry",
label="LABEL_REPEATED",
),
),
nested_type=(
descriptor_pb2.DescriptorProto(
name="MolluscsMapEntry",
field=(
descriptor_pb2.FieldDescriptorProto(
name="key",
type="TYPE_STRING",
number=1,
),
descriptor_pb2.FieldDescriptorProto(
name="value",
type="TYPE_MESSAGE",
number=2,
# We use the same type for the map value as for
# the singleton above to better highlight the
# problem raised in
# https://github.com/googleapis/gapic-generator-python/issues/618.
# The module _is_ disambiguated for singleton
# fields but NOT for map fields.
type_name=".animalia.mollusca.v2.Mollusc"),
),
options=descriptor_pb2.MessageOptions(map_entry=True),
), ),
), ),
)
my_api = api.API.build(
file_descriptors=[squid_file_pb, method_types_file_pb], )
create = my_api.messages['animalia.mollusca.v2.CreateMolluscRequest']
mollusc = create.fields['mollusc']
molluscs_map = create.fields['molluscs_map']
mollusc_ident = str(mollusc.type.ident)
mollusc_map_ident = str(molluscs_map.message.fields['value'].type.ident)
# The same module used in the same place should have the same import alias.
# Because there's a "mollusc" name used, the import should be disambiguated.
assert mollusc_ident == mollusc_map_ident == "am_mollusc.Mollusc"
def testCustomOptionsCopyTo(self):
message_descriptor = (unittest_custom_options_pb2.
TestMessageWithCustomOptions.DESCRIPTOR)
message_proto = descriptor_pb2.DescriptorProto()
message_descriptor.CopyToProto(message_proto)
self.assertEqual(len(message_proto.options.ListFields()), 2)
def testMergeActiveShadowMessage(self):
"""MergeActiveShadowMessage recovers shadow fields with oneofs."""
active_pb_text = """
field {
number: 1
name: "foo"
}
field {
number: 0
name: "bar"
oneof_index: 2
}
field {
number: 3
name: "baz"
}
field {
number: 4
name: "newbie"
}
reserved_name: "wow"
reserved_range {
start: 2
end: 3
}
oneof_decl {
name: "ign"
}
oneof_decl {
name: "ign2"
}
oneof_decl {
name: "some_oneof"
}
"""
active_proto = descriptor_pb2.DescriptorProto()
text_format.Merge(active_pb_text, active_proto)
shadow_pb_text = """
field {
number: 1
name: "foo"
}
field {
number: 0
name: "bar"
}
field {
number: 3
name: "baz"
}
field {
number: 2
name: "hidden_envoy_deprecated_wow"
oneof_index: 0
}
oneof_decl {
name: "some_oneof"
}
"""
shadow_proto = descriptor_pb2.DescriptorProto()
text_format.Merge(shadow_pb_text, shadow_proto)
target_proto = descriptor_pb2.DescriptorProto()
merge_active_shadow.MergeActiveShadowMessage(active_proto, shadow_proto, target_proto)
target_pb_text = """
field {
name: "foo"
number: 1
}
field {
name: "baz"
number: 3
}
field {
name: "newbie"
number: 4
}
field {
name: "bar"
number: 0
oneof_index: 2
}
field {
name: "hidden_envoy_deprecated_wow"
number: 2
oneof_index: 2
}
oneof_decl {
name: "ign"
}
oneof_decl {
name: "ign2"
}
oneof_decl {
name: "some_oneof"
}
"""
self.assertTextProtoEq(target_pb_text, str(target_proto))
def make_message_pb2(name: str, fields=()) -> descriptor_pb2.DescriptorProto:
return descriptor_pb2.DescriptorProto(name=name, field=fields)
def testmerge_active_shadow_message_comments(self):
"""merge_active_shadow_message preserves comment field correspondence."""
active_pb_text = """
field {
number: 9
name: "oneof_1_0"
oneof_index: 0
}
field {
number: 1
name: "simple_field_0"
}
field {
number: 0
name: "oneof_2_0"
oneof_index: 2
}
field {
number: 8
name: "oneof_2_1"
oneof_index: 2
}
field {
number: 3
name: "oneof_0_0"
oneof_index: 1
}
field {
number: 4
name: "newbie"
}
field {
number: 7
name: "oneof_3_0"
oneof_index: 3
}
reserved_name: "missing_oneof_field_0"
reserved_name: "missing_oneof_field_1"
reserved_name: "missing_oneof_field_2"
oneof_decl {
name: "oneof_0"
}
oneof_decl {
name: "oneof_1"
}
oneof_decl {
name: "oneof_2"
}
oneof_decl {
name: "oneof_3"
}
"""
active_proto = descriptor_pb2.DescriptorProto()
text_format.Merge(active_pb_text, active_proto)
active_source_code_info_text = """
location {
path: [4, 1, 2, 4]
leading_comments: "field_4"
}
location {
path: [4, 1, 2, 5]
leading_comments: "field_5"
}
location {
path: [4, 1, 2, 3]
leading_comments: "field_3"
}
location {
path: [4, 1, 2, 0]
leading_comments: "field_0"
}
location {
path: [4, 1, 2, 1]
leading_comments: "field_1"
}
location {
path: [4, 0, 2, 2]
leading_comments: "ignore_0"
}
location {
path: [4, 1, 2, 6]
leading_comments: "field_6"
}
location {
path: [4, 1, 2, 2]
leading_comments: "field_2"
}
location {
path: [3]
leading_comments: "ignore_1"
}
"""
active_source_code_info = descriptor_pb2.SourceCodeInfo()
text_format.Merge(active_source_code_info_text, active_source_code_info)
shadow_pb_text = """
field {
number: 10
name: "hidden_envoy_deprecated_missing_oneof_field_0"
oneof_index: 0
}
field {
number: 11
name: "hidden_envoy_deprecated_missing_oneof_field_1"
oneof_index: 3
}
field {
number: 11
name: "hidden_envoy_deprecated_missing_oneof_field_2"
oneof_index: 2
}
oneof_decl {
name: "oneof_0"
}
oneof_decl {
name: "oneof_1"
}
oneof_decl {
name: "oneof_2"
}
oneof_decl {
name: "some_removed_oneof"
}
oneof_decl {
name: "oneof_3"
}
"""
shadow_proto = descriptor_pb2.DescriptorProto()
text_format.Merge(shadow_pb_text, shadow_proto)
target_proto = descriptor_pb2.DescriptorProto()
source_code_info = api_type_context.SourceCodeInfo('fake', active_source_code_info)
fake_type_context = api_type_context.TypeContext(source_code_info, 'fake_package')
target_proto_dependencies = []
merge_active_shadow.merge_active_shadow_message(
fake_type_context.extend_message(1, "foo", False), active_proto, shadow_proto,
target_proto, target_proto_dependencies)
target_pb_text = """
field {
name: "oneof_1_0"
number: 9
oneof_index: 0
}
field {
name: "hidden_envoy_deprecated_missing_oneof_field_0"
number: 10
oneof_index: 0
}
field {
name: "simple_field_0"
number: 1
}
field {
name: "oneof_2_0"
number: 0
oneof_index: 2
}
field {
name: "oneof_2_1"
number: 8
oneof_index: 2
}
field {
name: "hidden_envoy_deprecated_missing_oneof_field_2"
number: 11
oneof_index: 2
}
field {
name: "oneof_0_0"
number: 3
oneof_index: 1
}
field {
name: "newbie"
number: 4
}
field {
name: "oneof_3_0"
number: 7
oneof_index: 3
}
field {
name: "hidden_envoy_deprecated_missing_oneof_field_1"
number: 11
oneof_index: 4
}
oneof_decl {
name: "oneof_0"
}
oneof_decl {
name: "oneof_1"
}
oneof_decl {
name: "oneof_2"
}
oneof_decl {
name: "oneof_3"
}
oneof_decl {
name: "some_removed_oneof"
}
"""
target_source_code_info_text = """
location {
path: 4
path: 1
path: 2
path: 6
leading_comments: "field_4"
}
location {
path: 4
path: 1
path: 2
path: 7
leading_comments: "field_5"
}
location {
path: 4
path: 1
path: 2
path: 4
leading_comments: "field_3"
}
location {
path: 4
path: 1
path: 2
path: 0
leading_comments: "field_0"
}
location {
path: 4
path: 1
path: 2
path: 2
leading_comments: "field_1"
}
location {
path: 4
path: 0
path: 2
path: 2
leading_comments: "ignore_0"
}
location {
path: 4
path: 1
path: 2
path: 8
leading_comments: "field_6"
}
location {
path: 4
path: 1
path: 2
path: 3
leading_comments: "field_2"
}
location {
path: 3
leading_comments: "ignore_1"
}
"""
self.maxDiff = None
self.assert_text_proto_eq(target_pb_text, str(target_proto))
self.assert_text_proto_eq(target_source_code_info_text,
str(fake_type_context.source_code_info.proto))
def __new__(mcls, name, bases, attrs):
# Do not do any special behavior for Message itself.
if not bases:
return super().__new__(mcls, name, bases, attrs)
# Get the essential information about the proto package, and where
# this component belongs within the file.
package, marshal = _package_info.compile(name, attrs)
# Determine the local path of this proto component within the file.
local_path = tuple(attrs.get("__qualname__", name).split("."))
# Sanity check: We get the wrong full name if a class is declared
# inside a function local scope; correct this.
if "<locals>" in local_path:
ix = local_path.index("<locals>")
local_path = local_path[:ix - 1] + local_path[ix + 1:]
# Determine the full name in protocol buffers.
full_name = ".".join((package, ) + local_path).lstrip(".")
# Special case: Maps. Map fields are special; they are essentially
# shorthand for a nested message and a repeated field of that message.
# Decompose each map into its constituent form.
# https://developers.google.com/protocol-buffers/docs/proto3#maps
map_fields = {}
for key, field in attrs.items():
if not isinstance(field, MapField):
continue
# Determine the name of the entry message.
msg_name = "{pascal_key}Entry".format(pascal_key=re.sub(
r"_\w",
lambda m: m.group()[1:].upper(),
key,
).replace(key[0], key[0].upper(), 1), )
# Create the "entry" message (with the key and value fields).
#
# Note: We instantiate an ordered dictionary here and then
# attach key and value in order to ensure that the fields are
# iterated in the correct order when the class is created.
# This is only an issue in Python 3.5, where the order is
# random (and the wrong order causes the pool to refuse to add
# the descriptor because reasons).
entry_attrs = collections.OrderedDict({
"__module__":
attrs.get("__module__", None),
"__qualname__":
"{prefix}.{name}".format(
prefix=attrs.get("__qualname__", name),
name=msg_name,
),
"_pb_options": {
"map_entry": True
},
})
entry_attrs["key"] = Field(field.map_key_type, number=1)
entry_attrs["value"] = Field(
field.proto_type,
number=2,
enum=field.enum,
message=field.message,
)
map_fields[msg_name] = MessageMeta(msg_name, (Message, ),
entry_attrs)
# Create the repeated field for the entry message.
map_fields[key] = RepeatedField(
ProtoType.MESSAGE,
number=field.number,
message=map_fields[msg_name],
)
# Add the new entries to the attrs
attrs.update(map_fields)
# Okay, now we deal with all the rest of the fields.
# Iterate over all the attributes and separate the fields into
# their own sequence.
fields = []
new_attrs = {}
oneofs = collections.OrderedDict()
proto_imports = set()
index = 0
for key, field in attrs.items():
# Sanity check: If this is not a field, do nothing.
if not isinstance(field, Field):
# The field objects themselves should not be direct attributes.
new_attrs[key] = field
continue
# Add data that the field requires that we do not take in the
# constructor because we can derive it from the metaclass.
# (The goal is to make the declaration syntax as nice as possible.)
field.mcls_data = {
"name": key,
"parent_name": full_name,
"index": index,
"package": package,
}
# Add the field to the list of fields.
fields.append(field)
# If this field is part of a "oneof", ensure the oneof itself
# is represented.
if field.oneof:
# Keep a running tally of the index of each oneof, and assign
# that index to the field's descriptor.
oneofs.setdefault(field.oneof, len(oneofs))
field.descriptor.oneof_index = oneofs[field.oneof]
# If this field references a message, it may be from another
# proto file; ensure we know about the import (to faithfully
# construct our file descriptor proto).
if field.message and not isinstance(field.message, str):
field_msg = field.message
if hasattr(field_msg, "pb") and callable(field_msg.pb):
field_msg = field_msg.pb()
# Sanity check: The field's message may not yet be defined if
# it was a Message defined in the same file, and the file
# descriptor proto has not yet been generated.
#
# We do nothing in this situation; everything will be handled
# correctly when the file descriptor is created later.
if field_msg:
proto_imports.add(field_msg.DESCRIPTOR.file.name)
# Same thing, but for enums.
elif field.enum and not isinstance(field.enum, str):
field_enum = (field.enum._meta.pb if hasattr(
field.enum, "_meta") else field.enum.DESCRIPTOR)
if field_enum:
proto_imports.add(field_enum.file.name)
# Increment the field index counter.
index += 1
# As per descriptor.proto, all synthetic oneofs must be ordered after
# 'real' oneofs.
opt_attrs = {}
for field in fields:
if field.optional:
field.oneof = "_{}".format(field.name)
field.descriptor.oneof_index = oneofs[field.oneof] = len(
oneofs)
opt_attrs[field.name] = field.name
# Generating a metaclass dynamically provides class attributes that
# instances can't see. This provides idiomatically named constants
# that enable the following pattern to check for field presence:
#
# class MyMessage(proto.Message):
# field = proto.Field(proto.INT32, number=1, optional=True)
#
# m = MyMessage()
# MyMessage.field in m
if opt_attrs:
mcls = type("AttrsMeta", (mcls, ), opt_attrs)
# Determine the filename.
# We determine an appropriate proto filename based on the
# Python module.
filename = _file_info._FileInfo.proto_file_name(
new_attrs.get("__module__", name.lower()))
# Get or create the information about the file, including the
# descriptor to which the new message descriptor shall be added.
file_info = _file_info._FileInfo.maybe_add_descriptor(
filename, package)
# Ensure any imports that would be necessary are assigned to the file
# descriptor proto being created.
for proto_import in proto_imports:
if proto_import not in file_info.descriptor.dependency:
file_info.descriptor.dependency.append(proto_import)
# Retrieve any message options.
opts = descriptor_pb2.MessageOptions(
**new_attrs.pop("_pb_options", {}))
# Create the underlying proto descriptor.
desc = descriptor_pb2.DescriptorProto(
name=name,
field=[i.descriptor for i in fields],
oneof_decl=[
descriptor_pb2.OneofDescriptorProto(name=i)
for i in oneofs.keys()
],
options=opts,
)
# If any descriptors were nested under this one, they need to be
# attached as nested types here.
child_paths = [
p for p in file_info.nested.keys() if local_path == p[:-1]
]
for child_path in child_paths:
desc.nested_type.add().MergeFrom(file_info.nested.pop(child_path))
# Same thing, but for enums
child_paths = [
p for p in file_info.nested_enum.keys() if local_path == p[:-1]
]
for child_path in child_paths:
desc.enum_type.add().MergeFrom(
file_info.nested_enum.pop(child_path))
# Add the descriptor to the file if it is a top-level descriptor,
# or to a "holding area" for nested messages otherwise.
if len(local_path) == 1:
file_info.descriptor.message_type.add().MergeFrom(desc)
else:
file_info.nested[local_path] = desc
# Create the MessageInfo instance to be attached to this message.
new_attrs["_meta"] = _MessageInfo(
fields=fields,
full_name=full_name,
marshal=marshal,
options=opts,
package=package,
)
# Run the superclass constructor.
cls = super().__new__(mcls, name, bases, new_attrs)
# The info class and fields need a reference to the class just created.
cls._meta.parent = cls
for field in cls._meta.fields.values():
field.parent = cls
# Add this message to the _FileInfo instance; this allows us to
# associate the descriptor with the message once the descriptor
# is generated.
file_info.messages[full_name] = cls
# Generate the descriptor for the file if it is ready.
if file_info.ready(new_class=cls):
file_info.generate_file_pb(new_class=cls, fallback_salt=full_name)
# Done; return the class.
return cls
def make_message_pb2(name: str, fields: tuple = (),
**kwargs) -> desc.DescriptorProto:
return desc.DescriptorProto(name=name, field=fields, **kwargs)
def testmerge_active_shadow_message(self):
"""merge_active_shadow_message recovers shadow fields with oneofs."""
active_pb_text = """
field {
number: 1
name: "foo"
}
field {
number: 0
name: "bar"
oneof_index: 2
}
field {
number: 3
name: "baz"
}
field {
number: 4
name: "newbie"
}
reserved_name: "wow"
reserved_range {
start: 2
end: 3
}
oneof_decl {
name: "ign"
}
oneof_decl {
name: "ign2"
}
oneof_decl {
name: "some_oneof"
}
"""
active_proto = descriptor_pb2.DescriptorProto()
text_format.Merge(active_pb_text, active_proto)
shadow_pb_text = """
field {
number: 1
name: "foo"
}
field {
number: 0
name: "bar"
}
field {
number: 3
name: "baz"
}
field {
number: 5
name: "hidden_envoy_deprecated_wow"
options {
deprecated: true
[validate.rules] {
string {
max_bytes: 1024
}
}
[envoy.annotations.disallowed_by_default]: true
}
oneof_index: 0
}
oneof_decl {
name: "some_oneof"
}
"""
shadow_proto = descriptor_pb2.DescriptorProto()
text_format.Merge(shadow_pb_text, shadow_proto)
target_proto = descriptor_pb2.DescriptorProto()
target_proto_dependencies = []
merge_active_shadow.merge_active_shadow_message(self.fake_type_context(), active_proto,
shadow_proto, target_proto,
target_proto_dependencies)
target_pb_text = """
field {
name: "foo"
number: 1
}
field {
name: "bar"
number: 0
oneof_index: 2
}
field {
name: "hidden_envoy_deprecated_wow"
number: 5
options {
deprecated: true
[validate.rules] {
string {
max_bytes: 1024
}
}
[envoy.annotations.disallowed_by_default]: true
}
oneof_index: 2
}
field {
name: "baz"
number: 3
}
field {
name: "newbie"
number: 4
}
oneof_decl {
name: "ign"
}
oneof_decl {
name: "ign2"
}
oneof_decl {
name: "some_oneof"
}
reserved_range {
start: 2
end: 3
}
"""
self.assert_text_proto_eq(target_pb_text, str(target_proto))
self.assertEqual(target_proto_dependencies[0], 'envoy/annotations/deprecation.proto')