Package com.google.protobuf

Class DescriptorMessageInfoFactory

java.lang.Object

com.google.protobuf.DescriptorMessageInfoFactory

All Implemented Interfaces:

MessageInfoFactory

@ExperimentalApi
final class DescriptorMessageInfoFactory
extends java.lang.Object
implements MessageInfoFactory

A factory for message info based on protobuf descriptors for a GeneratedMessageV3.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	DescriptorMessageInfoFactory.IsInitializedCheckAnalyzer	A helper class to determine whether a message type needs to implement isInitialized().
private static class	DescriptorMessageInfoFactory.OneofState

Field Summary

Fields

Modifier and Type	Field	Description
private static java.lang.String	GET_DEFAULT_INSTANCE_METHOD_NAME
private static DescriptorMessageInfoFactory	instance
private static DescriptorMessageInfoFactory.IsInitializedCheckAnalyzer	isInitializedCheckAnalyzer
private static java.util.Set<java.lang.String>	specialFieldNames

Constructor Summary

Constructors

Modifier	Constructor	Description
private	DescriptorMessageInfoFactory()

Method Summary

Modifier and Type	Method	Description
private static java.lang.reflect.Field	bitField(java.lang.Class<?> messageType, int index)
private static FieldInfo	buildOneofMember(java.lang.Class<?> messageType, Descriptors.FieldDescriptor fd, DescriptorMessageInfoFactory.OneofState oneofState, boolean enforceUtf8, Internal.EnumVerifier enumVerifier)	Builds info for a oneof member field.
private static java.lang.reflect.Field	cachedSizeField(java.lang.Class<?> messageType, Descriptors.FieldDescriptor fd)
private static MessageInfo	convert(java.lang.Class<?> messageType, Descriptors.Descriptor messageDescriptor)
private static StructuralMessageInfo	convertProto2(java.lang.Class<?> messageType, Descriptors.Descriptor messageDescriptor)
private static StructuralMessageInfo	convertProto3(java.lang.Class<?> messageType, Descriptors.Descriptor messageDescriptor)
private static Descriptors.Descriptor	descriptorForType(java.lang.Class<?> messageType)
private static java.lang.reflect.Field	field(java.lang.Class<?> messageType, Descriptors.FieldDescriptor fd)
private static java.lang.reflect.Field	field(java.lang.Class<?> messageType, java.lang.String fieldName)
private static java.lang.String	getCachedSizeFieldName(Descriptors.FieldDescriptor fd)
private static Message	getDefaultInstance(java.lang.Class<?> messageType)
(package private) static java.lang.String	getFieldName(Descriptors.FieldDescriptor fd)
private static FieldType	getFieldType(Descriptors.FieldDescriptor fd)
static DescriptorMessageInfoFactory	getInstance()
private static java.lang.Class<?>	getOneofStoredType(java.lang.Class<?> messageType, Descriptors.FieldDescriptor fd, FieldType type)
private static java.lang.Class<?>	getOneofStoredTypeForMessage(java.lang.Class<?> messageType, Descriptors.FieldDescriptor fd)	Inspects the message to identify the stored type for a message field that is part of a oneof.
private static java.lang.String	getterForField(java.lang.String snakeCase)	Constructs the name of the get method for the given field in the proto.
private static java.lang.Class<?>	getTypeForRepeatedMessageField(java.lang.Class<?> messageType, Descriptors.FieldDescriptor fd)	Inspects the message to identify the message type of a repeated message field.
boolean	isSupported(java.lang.Class<?> messageType)	Whether the message class is supported by this factory.
MessageInfo	messageInfoFor(java.lang.Class<?> messageType)	Returns a information of the message class.
private static boolean	needsIsInitializedCheck(Descriptors.Descriptor descriptor)
private static java.lang.String	snakeCaseToCamelCase(java.lang.String snakeCase)	This method must match exactly with the corresponding function in protocol compiler.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

GET_DEFAULT_INSTANCE_METHOD_NAME

private static final java.lang.String GET_DEFAULT_INSTANCE_METHOD_NAME

See Also:

Constant Field Values

instance

private static final DescriptorMessageInfoFactory instance

specialFieldNames

private static final java.util.Set<java.lang.String> specialFieldNames

isInitializedCheckAnalyzer

private static DescriptorMessageInfoFactory.IsInitializedCheckAnalyzer isInitializedCheckAnalyzer

Constructor Detail

DescriptorMessageInfoFactory

private DescriptorMessageInfoFactory()

Method Detail

getInstance

public static DescriptorMessageInfoFactory getInstance()

isSupported

public boolean isSupported(java.lang.Class<?> messageType)

Description copied from interface: MessageInfoFactory

Whether the message class is supported by this factory.

Specified by:

isSupported in interface MessageInfoFactory

messageInfoFor

public MessageInfo messageInfoFor(java.lang.Class<?> messageType)

Description copied from interface: MessageInfoFactory

Returns a information of the message class.

Specified by:

messageInfoFor in interface MessageInfoFactory

getDefaultInstance

private static Message getDefaultInstance(java.lang.Class<?> messageType)

descriptorForType

private static Descriptors.Descriptor descriptorForType(java.lang.Class<?> messageType)

convert

private static MessageInfo convert(java.lang.Class<?> messageType,
                                   Descriptors.Descriptor messageDescriptor)

needsIsInitializedCheck

private static boolean needsIsInitializedCheck(Descriptors.Descriptor descriptor)

convertProto2

private static StructuralMessageInfo convertProto2(java.lang.Class<?> messageType,
                                                   Descriptors.Descriptor messageDescriptor)

convertProto3

private static StructuralMessageInfo convertProto3(java.lang.Class<?> messageType,
                                                   Descriptors.Descriptor messageDescriptor)

buildOneofMember

private static FieldInfo buildOneofMember(java.lang.Class<?> messageType,
                                          Descriptors.FieldDescriptor fd,
                                          DescriptorMessageInfoFactory.OneofState oneofState,
                                          boolean enforceUtf8,
                                          Internal.EnumVerifier enumVerifier)

Builds info for a oneof member field.

getOneofStoredType

private static java.lang.Class<?> getOneofStoredType(java.lang.Class<?> messageType,
                                                     Descriptors.FieldDescriptor fd,
                                                     FieldType type)

getFieldType

private static FieldType getFieldType(Descriptors.FieldDescriptor fd)

bitField

private static java.lang.reflect.Field bitField(java.lang.Class<?> messageType,
                                                int index)

field

private static java.lang.reflect.Field field(java.lang.Class<?> messageType,
                                             Descriptors.FieldDescriptor fd)

cachedSizeField

private static java.lang.reflect.Field cachedSizeField(java.lang.Class<?> messageType,
                                                       Descriptors.FieldDescriptor fd)

field

private static java.lang.reflect.Field field(java.lang.Class<?> messageType,
                                             java.lang.String fieldName)

getFieldName

static java.lang.String getFieldName(Descriptors.FieldDescriptor fd)

getCachedSizeFieldName

private static java.lang.String getCachedSizeFieldName(Descriptors.FieldDescriptor fd)

snakeCaseToCamelCase

private static java.lang.String snakeCaseToCamelCase(java.lang.String snakeCase)

This method must match exactly with the corresponding function in protocol compiler. See: https://github.com/google/protobuf/blob/v3.0.0/src/google/protobuf/compiler/java/java_helpers.cc#L153

getOneofStoredTypeForMessage

private static java.lang.Class<?> getOneofStoredTypeForMessage(java.lang.Class<?> messageType,
                                                               Descriptors.FieldDescriptor fd)

Inspects the message to identify the stored type for a message field that is part of a oneof.

getTypeForRepeatedMessageField

private static java.lang.Class<?> getTypeForRepeatedMessageField(java.lang.Class<?> messageType,
                                                                 Descriptors.FieldDescriptor fd)

Inspects the message to identify the message type of a repeated message field.

getterForField

private static java.lang.String getterForField(java.lang.String snakeCase)

Constructs the name of the get method for the given field in the proto.