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Editing: symbol_database.pyc
� ���hc @ sa d Z d d l m Z d d l m Z d e j f d � � YZ e d e j � � Z d � Z d S( sR A 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')() i����( t descriptor_pool( t message_factoryt SymbolDatabasec B sM e Z d Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z RS( s' A database of Python generated symbols.c C s' | j } | | j | <| j | � | S( s� Registers the given message type in the local database. Calls to GetSymbol() and GetMessages() will return messages registered here. Args: message: a message.Message, to be registered. Returns: The provided message. ( t DESCRIPTORt _classest RegisterMessageDescriptor( t selft messaget desc( ( sC /usr/lib/python2.7/site-packages/google/protobuf/symbol_database.pyt RegisterMessageD s c C s | j j | � d S( s� Registers the given message descriptor in the local database. Args: message_descriptor: a descriptor.MessageDescriptor. N( t poolt AddDescriptor( R t message_descriptor( ( sC /usr/lib/python2.7/site-packages/google/protobuf/symbol_database.pyR U s c C s | j j | � | S( s� Registers the given enum descriptor in the local database. Args: enum_descriptor: a descriptor.EnumDescriptor. Returns: The provided descriptor. ( R t AddEnumDescriptor( R t enum_descriptor( ( sC /usr/lib/python2.7/site-packages/google/protobuf/symbol_database.pyt RegisterEnumDescriptor] s c C s | j j | � d S( s� Registers the given service descriptor in the local database. Args: service_descriptor: a descriptor.ServiceDescriptor. Returns: The provided descriptor. N( R t AddServiceDescriptor( R t service_descriptor( ( sC /usr/lib/python2.7/site-packages/google/protobuf/symbol_database.pyt RegisterServiceDescriptori s c C s | j j | � d S( s� Registers the given file descriptor in the local database. Args: file_descriptor: a descriptor.FileDescriptor. Returns: The provided descriptor. N( R t AddFileDescriptor( R t file_descriptor( ( sC /usr/lib/python2.7/site-packages/google/protobuf/symbol_database.pyt RegisterFileDescriptort s c C s | j | j j | � S( sx Tries 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: A str, a protocol buffer symbol. Returns: A Python class corresponding to the symbol. Raises: KeyError: if the symbol could not be found. ( R R t FindMessageTypeByName( R t symbol( ( sC /usr/lib/python2.7/site-packages/google/protobuf/symbol_database.pyt GetSymbol s c s� � f d � � i } x} | D]u } | j j | � } xZ | j j � D]I } x@ � | � D]2 } y | j | | | j <WqW t k r� qW XqW WqD Wq W| S( s Gets 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: 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. c 3 s9 | Vx- | j D]" } x � | � D] } | Vq" Wq Wd S( sC Walk a message Descriptor and recursively yields all message names.N( t nested_types( R t msg_desct nested_desc( t _GetAllMessages( sC /usr/lib/python2.7/site-packages/google/protobuf/symbol_database.pyR � s ( R t FindFileByNamet message_types_by_namet valuesR t full_namet KeyError( R t filest resultt file_namet file_descR R ( ( R sC /usr/lib/python2.7/site-packages/google/protobuf/symbol_database.pyt GetMessages� s ( t __name__t __module__t __doc__R R R R R R R& ( ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/symbol_database.pyR A s R c C s t S( s# Returns the default SymbolDatabase.( t _DEFAULT( ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/symbol_database.pyt Default� s N( R) t google.protobufR R t MessageFactoryR R+ R* ( ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/symbol_database.pyt <module>: s w
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