U "FZh5@sXdZddlZddlmZddlmZddlmZGdddZeedZ d d ZdS) aSA database of Python protocol buffer generated symbols. SymbolDatabase is the MessageFactory for messages generated at compile time, and makes it easy to create new instances of a registered type, given only the type's protocol buffer symbol name. Example usage:: db = symbol_database.SymbolDatabase() # Register symbols of interest, from one or multiple files. db.RegisterFileDescriptor(my_proto_pb2.DESCRIPTOR) db.RegisterMessage(my_proto_pb2.MyMessage) db.RegisterEnumDescriptor(my_proto_pb2.MyEnum.DESCRIPTOR) # The database can be used as a MessageFactory, to generate types based on # their name: types = db.GetMessages(['my_proto.proto']) my_message_instance = types['MyMessage']() # The database's underlying descriptor pool can be queried, so it's not # necessary to know a type's filename to be able to generate it: filename = db.pool.FindFileContainingSymbol('MyMessage') my_message_instance = db.GetMessages([filename])['MyMessage']() # This functionality is also provided directly via a convenience method: my_message_instance = db.GetSymbol('MyMessage')() N)api_implementation)descriptor_pool)message_factoryc@sneZdZdZiZdddZddZddZd d Zd d Z d dZ ddZ ddZ ddZ ddZdd ZdS)SymbolDatabasez'A database of Python generated symbols.NcCs|p t|_dS)z!Initializes a new SymbolDatabase.N)rZDescriptorPoolpool)selfrrf/home/aprabhat/apps/x.techxrdev.in/venv/lib/python3.8/site-packages/google/protobuf/symbol_database.py__init__2szSymbolDatabase.__init__cCstdt|S)NzSymbolDatabase.GetPrototype() is deprecated. Please use message_factory.GetMessageClass() instead. SymbolDatabase.GetPrototype() will be removed soon.)warningswarnrZGetMessageClassrZ descriptorrrr GetPrototype6s zSymbolDatabase.GetPrototypecCstdt|S)NzDirectly call CreatePrototype() is wrong. Please use message_factory.GetMessageClass() instead. SymbolDatabase.CreatePrototype() will be removed soon.)r r rZ_InternalCreateMessageClassr rrr CreatePrototype<s zSymbolDatabase.CreatePrototypecCstdt||jS)NzSymbolDatabase.GetMessages() is deprecated. Please use message_factory.GetMessageClassedForFiles() instead. SymbolDatabase.GetMessages() will be removed soon.)r r rZGetMessageClassedForFilesr)rfilesrrr GetMessagesBs zSymbolDatabase.GetMessagescCs|j}||j|<|||S)a@Registers the given message type in the local database. Calls to GetSymbol() and GetMessages() will return messages registered here. Args: message: A :class:`google.protobuf.message.Message` subclass (or instance); its descriptor will be registered. Returns: The provided message. )Z DESCRIPTOR_classesRegisterMessageDescriptor)rmessagedescrrr RegisterMessageHs   zSymbolDatabase.RegisterMessagecCstdkr|j|dS)zRegisters the given message descriptor in the local database. Args: message_descriptor (Descriptor): the message descriptor to add. pythonN)rTyperZ_AddDescriptor)rZmessage_descriptorrrr rZs z(SymbolDatabase.RegisterMessageDescriptorcCstdkr|j||S)zRegisters the given enum descriptor in the local database. Args: enum_descriptor (EnumDescriptor): The enum descriptor to register. Returns: EnumDescriptor: The provided descriptor. r)rrrZ_AddEnumDescriptor)rZenum_descriptorrrr RegisterEnumDescriptords  z%SymbolDatabase.RegisterEnumDescriptorcCstdkr|j|dS)zRegisters the given service descriptor in the local database. Args: service_descriptor (ServiceDescriptor): the service descriptor to register. rN)rrrZ_AddServiceDescriptor)rZservice_descriptorrrr RegisterServiceDescriptorrs z(SymbolDatabase.RegisterServiceDescriptorcCstdkr|j|dS)zRegisters the given file descriptor in the local database. Args: file_descriptor (FileDescriptor): The file descriptor to register. rN)rrrZ_InternalAddFileDescriptor)rfile_descriptorrrr RegisterFileDescriptor}s z%SymbolDatabase.RegisterFileDescriptorcCs|j|j|S)awTries to find a symbol in the local database. Currently, this method only returns message.Message instances, however, if may be extended in future to support other symbol types. Args: symbol (str): a protocol buffer symbol. Returns: A Python class corresponding to the symbol. Raises: KeyError: if the symbol could not be found. )rrZFindMessageTypeByName)rsymbolrrr GetSymbolszSymbolDatabase.GetSymbolc srfddi}|D]X}|j|}|jD]<}|D].}z|j|||j<Wq:tk rfYq:Xq:q.q|S)aGets all registered messages from a specified file. Only messages already created and registered will be returned; (this is the case for imported _pb2 modules) But unlike MessageFactory, this version also returns already defined nested messages, but does not register any message extensions. Args: files (list[str]): The file names to extract messages from. Returns: A dictionary mapping proto names to the message classes. Raises: KeyError: if a file could not be found. c3s*|V|jD]}|D] }|Vqq dS)zCWalk a message Descriptor and recursively yields all message names.N)Z nested_types)rmsg_descZ nested_desc_GetAllMessagesrr r!s  z3SymbolDatabase.GetMessages.._GetAllMessages)rZFindFileByNameZmessage_types_by_namevaluesrZ full_nameKeyError)rrresult file_nameZ file_descrrrr r rs    )N)__name__ __module__ __qualname____doc__rr rrrrrrrrrrrrr r,s    r)rcCstS)z#Returns the default SymbolDatabase.)_DEFAULTrrrr Defaultsr+) r)r Zgoogle.protobuf.internalrZgoogle.protobufrrrr+r*rrrr s