| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. All rights reserved. |
| // https://developers.google.com/protocol-buffers/ |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| package com.google.protobuf; |
| |
| import com.google.protobuf.AbstractMessageLite.Builder.LimitedInputStream; |
| import com.google.protobuf.Internal.BooleanList; |
| import com.google.protobuf.Internal.DoubleList; |
| import com.google.protobuf.Internal.FloatList; |
| import com.google.protobuf.Internal.IntList; |
| import com.google.protobuf.Internal.LongList; |
| import com.google.protobuf.Internal.ProtobufList; |
| import com.google.protobuf.WireFormat.FieldType; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.ObjectStreamException; |
| import java.io.Serializable; |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| import java.nio.ByteBuffer; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| /** |
| * Lite version of {@link GeneratedMessage}. |
| * |
| * @author kenton@google.com Kenton Varda |
| */ |
| public abstract class GeneratedMessageLite< |
| MessageType extends GeneratedMessageLite<MessageType, BuilderType>, |
| BuilderType extends GeneratedMessageLite.Builder<MessageType, BuilderType>> |
| extends AbstractMessageLite<MessageType, BuilderType> { |
| |
| /** For use by generated code only. Lazily initialized to reduce allocations. */ |
| protected UnknownFieldSetLite unknownFields = UnknownFieldSetLite.getDefaultInstance(); |
| |
| /** For use by generated code only. */ |
| protected int memoizedSerializedSize = -1; |
| |
| @Override |
| @SuppressWarnings("unchecked") // Guaranteed by runtime. |
| public final Parser<MessageType> getParserForType() { |
| return (Parser<MessageType>) dynamicMethod(MethodToInvoke.GET_PARSER); |
| } |
| |
| @Override |
| @SuppressWarnings("unchecked") // Guaranteed by runtime. |
| public final MessageType getDefaultInstanceForType() { |
| return (MessageType) dynamicMethod(MethodToInvoke.GET_DEFAULT_INSTANCE); |
| } |
| |
| @Override |
| @SuppressWarnings("unchecked") // Guaranteed by runtime. |
| public final BuilderType newBuilderForType() { |
| return (BuilderType) dynamicMethod(MethodToInvoke.NEW_BUILDER); |
| } |
| |
| /** |
| * A reflective toString function. This is primarily intended as a developer aid, while keeping |
| * binary size down. The first line of the {@code toString()} representation includes a commented |
| * version of {@code super.toString()} to act as an indicator that this should not be relied on |
| * for comparisons. |
| * |
| * <p>NOTE: This method relies on the field getter methods not being stripped or renamed by |
| * proguard. If they are, the fields will not be included in the returned string representation. |
| * |
| * <p>NOTE: This implementation is liable to change in the future, and should not be relied on in |
| * code. |
| */ |
| @Override |
| public String toString() { |
| return MessageLiteToString.toString(this, super.toString()); |
| } |
| |
| @SuppressWarnings("unchecked") // Guaranteed by runtime |
| @Override |
| public int hashCode() { |
| if (memoizedHashCode != 0) { |
| return memoizedHashCode; |
| } |
| memoizedHashCode = Protobuf.getInstance().schemaFor(this).hashCode(this); |
| return memoizedHashCode; |
| } |
| |
| @SuppressWarnings("unchecked") // Guaranteed by isInstance + runtime |
| @Override |
| public boolean equals(Object other) { |
| if (this == other) { |
| return true; |
| } |
| |
| if (!getDefaultInstanceForType().getClass().isInstance(other)) { |
| return false; |
| } |
| |
| return Protobuf.getInstance().schemaFor(this).equals(this, (MessageType) other); |
| } |
| |
| // The general strategy for unknown fields is to use an UnknownFieldSetLite that is treated as |
| // mutable during the parsing constructor and immutable after. This allows us to avoid |
| // any unnecessary intermediary allocations while reducing the generated code size. |
| |
| /** Lazily initializes unknown fields. */ |
| private final void ensureUnknownFieldsInitialized() { |
| if (unknownFields == UnknownFieldSetLite.getDefaultInstance()) { |
| unknownFields = UnknownFieldSetLite.newInstance(); |
| } |
| } |
| |
| /** |
| * Called by subclasses to parse an unknown field. For use by generated code only. |
| * |
| * @return {@code true} unless the tag is an end-group tag. |
| */ |
| protected boolean parseUnknownField(int tag, CodedInputStream input) throws IOException { |
| // This will avoid the allocation of unknown fields when a group tag is encountered. |
| if (WireFormat.getTagWireType(tag) == WireFormat.WIRETYPE_END_GROUP) { |
| return false; |
| } |
| |
| ensureUnknownFieldsInitialized(); |
| return unknownFields.mergeFieldFrom(tag, input); |
| } |
| |
| /** Called by subclasses to parse an unknown field. For use by generated code only. */ |
| protected void mergeVarintField(int tag, int value) { |
| ensureUnknownFieldsInitialized(); |
| unknownFields.mergeVarintField(tag, value); |
| } |
| |
| /** Called by subclasses to parse an unknown field. For use by generated code only. */ |
| protected void mergeLengthDelimitedField(int fieldNumber, ByteString value) { |
| ensureUnknownFieldsInitialized(); |
| unknownFields.mergeLengthDelimitedField(fieldNumber, value); |
| } |
| |
| /** Called by subclasses to complete parsing. For use by generated code only. */ |
| protected void makeImmutable() { |
| Protobuf.getInstance().schemaFor(this).makeImmutable(this); |
| } |
| |
| protected final < |
| MessageType extends GeneratedMessageLite<MessageType, BuilderType>, |
| BuilderType extends GeneratedMessageLite.Builder<MessageType, BuilderType>> |
| BuilderType createBuilder() { |
| return (BuilderType) dynamicMethod(MethodToInvoke.NEW_BUILDER); |
| } |
| |
| protected final < |
| MessageType extends GeneratedMessageLite<MessageType, BuilderType>, |
| BuilderType extends GeneratedMessageLite.Builder<MessageType, BuilderType>> |
| BuilderType createBuilder(MessageType prototype) { |
| return ((BuilderType) createBuilder()).mergeFrom(prototype); |
| } |
| |
| @Override |
| public final boolean isInitialized() { |
| return isInitialized((MessageType) this, Boolean.TRUE); |
| } |
| |
| @Override |
| @SuppressWarnings("unchecked") |
| public final BuilderType toBuilder() { |
| BuilderType builder = (BuilderType) dynamicMethod(MethodToInvoke.NEW_BUILDER); |
| builder.mergeFrom((MessageType) this); |
| return builder; |
| } |
| |
| /** |
| * Defines which method path to invoke in {@link GeneratedMessageLite |
| * #dynamicMethod(MethodToInvoke, Object...)}. |
| * |
| * <p>For use by generated code only. |
| */ |
| public static enum MethodToInvoke { |
| // Rely on/modify instance state |
| GET_MEMOIZED_IS_INITIALIZED, |
| SET_MEMOIZED_IS_INITIALIZED, |
| |
| // Rely on static state |
| BUILD_MESSAGE_INFO, |
| NEW_MUTABLE_INSTANCE, |
| NEW_BUILDER, |
| GET_DEFAULT_INSTANCE, |
| GET_PARSER; |
| } |
| |
| /** |
| * A method that implements different types of operations described in {@link MethodToInvoke}. |
| * Theses different kinds of operations are required to implement message-level operations for |
| * builders in the runtime. This method bundles those operations to reduce the generated methods |
| * count. |
| * |
| * <ul> |
| * <li>{@code NEW_INSTANCE} returns a new instance of the protocol buffer that has not yet been |
| * made immutable. See {@code MAKE_IMMUTABLE}. |
| * <li>{@code IS_INITIALIZED} returns {@code null} for false and the default instance for true. |
| * It doesn't use or modify any memoized value. |
| * <li>{@code GET_MEMOIZED_IS_INITIALIZED} returns the memoized {@code isInitialized} byte |
| * value. |
| * <li>{@code SET_MEMOIZED_IS_INITIALIZED} sets the memoized {@code isInitilaized} byte value to |
| * 1 if the first parameter is not null, or to 0 if the first parameter is null. |
| * <li>{@code NEW_BUILDER} returns a {@code BuilderType} instance. |
| * </ul> |
| * |
| * This method, plus the implementation of the Builder, enables the Builder class to be proguarded |
| * away entirely on Android. |
| * |
| * <p>For use by generated code only. |
| */ |
| protected abstract Object dynamicMethod(MethodToInvoke method, Object arg0, Object arg1); |
| |
| /** Same as {@link #dynamicMethod(MethodToInvoke, Object, Object)} with {@code null} padding. */ |
| protected Object dynamicMethod(MethodToInvoke method, Object arg0) { |
| return dynamicMethod(method, arg0, null); |
| } |
| |
| /** Same as {@link #dynamicMethod(MethodToInvoke, Object, Object)} with {@code null} padding. */ |
| protected Object dynamicMethod(MethodToInvoke method) { |
| return dynamicMethod(method, null, null); |
| } |
| |
| @Override |
| int getMemoizedSerializedSize() { |
| return memoizedSerializedSize; |
| } |
| |
| @Override |
| void setMemoizedSerializedSize(int size) { |
| memoizedSerializedSize = size; |
| } |
| |
| public void writeTo(CodedOutputStream output) throws IOException { |
| writeToInternal(output); |
| } |
| |
| public int getSerializedSize() { |
| if (memoizedSerializedSize == -1) { |
| memoizedSerializedSize = getSerializedSizeInternal(); |
| } |
| return memoizedSerializedSize; |
| } |
| |
| /** Constructs a {@link MessageInfo} for this message type. */ |
| Object buildMessageInfo() throws Exception { |
| return dynamicMethod(MethodToInvoke.BUILD_MESSAGE_INFO); |
| } |
| |
| private static Map<Object, GeneratedMessageLite<?, ?>> defaultInstanceMap = |
| new ConcurrentHashMap<Object, GeneratedMessageLite<?, ?>>(); |
| |
| @SuppressWarnings("unchecked") |
| static <T extends GeneratedMessageLite<?, ?>> T getDefaultInstance(Class<T> clazz) { |
| T result = (T) defaultInstanceMap.get(clazz); |
| if (result == null) { |
| // Foo.class does not initialize the class so we need to force the initialization in order to |
| // get the default instance registered. |
| try { |
| Class.forName(clazz.getName(), true, clazz.getClassLoader()); |
| } catch (ClassNotFoundException e) { |
| throw new IllegalStateException("Class initialization cannot fail.", e); |
| } |
| result = (T) defaultInstanceMap.get(clazz); |
| } |
| if (result == null) { |
| // On some Samsung devices, this still doesn't return a valid value for some reason. We add a |
| // reflective fallback to keep the device running. See b/114675342. |
| result = (T) UnsafeUtil.allocateInstance(clazz).getDefaultInstanceForType(); |
| // A sanity check to ensure that <clinit> was actually invoked. |
| if (result == null) { |
| throw new IllegalStateException(); |
| } |
| defaultInstanceMap.put(clazz, result); |
| } |
| return result; |
| } |
| |
| protected static <T extends GeneratedMessageLite<?, ?>> void registerDefaultInstance( |
| Class<T> clazz, T defaultInstance) { |
| defaultInstanceMap.put(clazz, defaultInstance); |
| } |
| |
| protected static Object newMessageInfo( |
| MessageLite defaultInstance, String info, Object[] objects) { |
| return new RawMessageInfo(defaultInstance, info, objects); |
| } |
| |
| /** |
| * Merge some unknown fields into the {@link UnknownFieldSetLite} for this message. |
| * |
| * <p>For use by generated code only. |
| */ |
| protected final void mergeUnknownFields(UnknownFieldSetLite unknownFields) { |
| this.unknownFields = UnknownFieldSetLite.mutableCopyOf(this.unknownFields, unknownFields); |
| } |
| |
| @SuppressWarnings("unchecked") |
| public abstract static class Builder< |
| MessageType extends GeneratedMessageLite<MessageType, BuilderType>, |
| BuilderType extends Builder<MessageType, BuilderType>> |
| extends AbstractMessageLite.Builder<MessageType, BuilderType> { |
| |
| private final MessageType defaultInstance; |
| protected MessageType instance; |
| protected boolean isBuilt; |
| |
| protected Builder(MessageType defaultInstance) { |
| this.defaultInstance = defaultInstance; |
| this.instance = |
| (MessageType) defaultInstance.dynamicMethod(MethodToInvoke.NEW_MUTABLE_INSTANCE); |
| isBuilt = false; |
| } |
| |
| /** |
| * Called before any method that would mutate the builder to ensure that it correctly copies any |
| * state before the write happens to preserve immutability guarantees. |
| */ |
| protected void copyOnWrite() { |
| if (isBuilt) { |
| MessageType newInstance = |
| (MessageType) instance.dynamicMethod(MethodToInvoke.NEW_MUTABLE_INSTANCE); |
| mergeFromInstance(newInstance, instance); |
| instance = newInstance; |
| isBuilt = false; |
| } |
| } |
| |
| @Override |
| public final boolean isInitialized() { |
| return GeneratedMessageLite.isInitialized(instance, /* shouldMemoize= */ false); |
| } |
| |
| @Override |
| public final BuilderType clear() { |
| // No need to copy on write since we're dropping the instance anyways. |
| instance = (MessageType) instance.dynamicMethod(MethodToInvoke.NEW_MUTABLE_INSTANCE); |
| return (BuilderType) this; |
| } |
| |
| @Override |
| public BuilderType clone() { |
| BuilderType builder = (BuilderType) getDefaultInstanceForType().newBuilderForType(); |
| builder.mergeFrom(buildPartial()); |
| return builder; |
| } |
| |
| @Override |
| public MessageType buildPartial() { |
| if (isBuilt) { |
| return instance; |
| } |
| |
| instance.makeImmutable(); |
| |
| isBuilt = true; |
| return instance; |
| } |
| |
| @Override |
| public final MessageType build() { |
| MessageType result = buildPartial(); |
| if (!result.isInitialized()) { |
| throw newUninitializedMessageException(result); |
| } |
| return result; |
| } |
| |
| @Override |
| protected BuilderType internalMergeFrom(MessageType message) { |
| return mergeFrom(message); |
| } |
| |
| /** All subclasses implement this. */ |
| public BuilderType mergeFrom(MessageType message) { |
| copyOnWrite(); |
| mergeFromInstance(instance, message); |
| return (BuilderType) this; |
| } |
| |
| private void mergeFromInstance(MessageType dest, MessageType src) { |
| Protobuf.getInstance().schemaFor(dest).mergeFrom(dest, src); |
| } |
| |
| @Override |
| public MessageType getDefaultInstanceForType() { |
| return defaultInstance; |
| } |
| |
| @Override |
| public BuilderType mergeFrom( |
| byte[] input, int offset, int length, ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| copyOnWrite(); |
| try { |
| Protobuf.getInstance().schemaFor(instance).mergeFrom( |
| instance, input, offset, offset + length, |
| new ArrayDecoders.Registers(extensionRegistry)); |
| } catch (InvalidProtocolBufferException e) { |
| throw e; |
| } catch (IndexOutOfBoundsException e) { |
| throw InvalidProtocolBufferException.truncatedMessage(); |
| } catch (IOException e) { |
| throw new RuntimeException("Reading from byte array should not throw IOException.", e); |
| } |
| return (BuilderType) this; |
| } |
| |
| @Override |
| public BuilderType mergeFrom( |
| byte[] input, int offset, int length) |
| throws InvalidProtocolBufferException { |
| return mergeFrom(input, offset, length, ExtensionRegistryLite.getEmptyRegistry()); |
| } |
| |
| @Override |
| public BuilderType mergeFrom( |
| com.google.protobuf.CodedInputStream input, |
| com.google.protobuf.ExtensionRegistryLite extensionRegistry) |
| throws IOException { |
| copyOnWrite(); |
| try { |
| // TODO(yilunchong): Try to make input with type CodedInpuStream.ArrayDecoder use |
| // fast path. |
| Protobuf.getInstance().schemaFor(instance).mergeFrom( |
| instance, CodedInputStreamReader.forCodedInput(input), extensionRegistry); |
| } catch (RuntimeException e) { |
| if (e.getCause() instanceof IOException) { |
| throw (IOException) e.getCause(); |
| } |
| throw e; |
| } |
| return (BuilderType) this; |
| } |
| } |
| |
| |
| // ================================================================= |
| // Extensions-related stuff |
| |
| /** Lite equivalent of {@link com.google.protobuf.GeneratedMessage.ExtendableMessageOrBuilder}. */ |
| public interface ExtendableMessageOrBuilder< |
| MessageType extends ExtendableMessage<MessageType, BuilderType>, |
| BuilderType extends ExtendableBuilder<MessageType, BuilderType>> |
| extends MessageLiteOrBuilder { |
| |
| /** Check if a singular extension is present. */ |
| <Type> boolean hasExtension(ExtensionLite<MessageType, Type> extension); |
| |
| /** Get the number of elements in a repeated extension. */ |
| <Type> int getExtensionCount(ExtensionLite<MessageType, List<Type>> extension); |
| |
| /** Get the value of an extension. */ |
| <Type> Type getExtension(ExtensionLite<MessageType, Type> extension); |
| |
| /** Get one element of a repeated extension. */ |
| <Type> Type getExtension(ExtensionLite<MessageType, List<Type>> extension, int index); |
| } |
| |
| /** Lite equivalent of {@link GeneratedMessage.ExtendableMessage}. */ |
| public abstract static class ExtendableMessage< |
| MessageType extends ExtendableMessage<MessageType, BuilderType>, |
| BuilderType extends ExtendableBuilder<MessageType, BuilderType>> |
| extends GeneratedMessageLite<MessageType, BuilderType> |
| implements ExtendableMessageOrBuilder<MessageType, BuilderType> { |
| |
| /** Represents the set of extensions on this message. For use by generated code only. */ |
| protected FieldSet<ExtensionDescriptor> extensions = FieldSet.emptySet(); |
| |
| @SuppressWarnings("unchecked") |
| protected final void mergeExtensionFields(final MessageType other) { |
| if (extensions.isImmutable()) { |
| extensions = extensions.clone(); |
| } |
| extensions.mergeFrom(((ExtendableMessage) other).extensions); |
| } |
| |
| /** |
| * Parse an unknown field or an extension. For use by generated code only. |
| * |
| * <p>For use by generated code only. |
| * |
| * @return {@code true} unless the tag is an end-group tag. |
| */ |
| protected <MessageType extends MessageLite> boolean parseUnknownField( |
| MessageType defaultInstance, |
| CodedInputStream input, |
| ExtensionRegistryLite extensionRegistry, |
| int tag) |
| throws IOException { |
| int fieldNumber = WireFormat.getTagFieldNumber(tag); |
| |
| // TODO(dweis): How much bytecode would be saved by not requiring the generated code to |
| // provide the default instance? |
| GeneratedExtension<MessageType, ?> extension = |
| extensionRegistry.findLiteExtensionByNumber(defaultInstance, fieldNumber); |
| |
| return parseExtension(input, extensionRegistry, extension, tag, fieldNumber); |
| } |
| |
| private boolean parseExtension( |
| CodedInputStream input, |
| ExtensionRegistryLite extensionRegistry, |
| GeneratedExtension<?, ?> extension, |
| int tag, |
| int fieldNumber) |
| throws IOException { |
| int wireType = WireFormat.getTagWireType(tag); |
| boolean unknown = false; |
| boolean packed = false; |
| if (extension == null) { |
| unknown = true; // Unknown field. |
| } else if (wireType |
| == FieldSet.getWireFormatForFieldType( |
| extension.descriptor.getLiteType(), /* isPacked= */ false)) { |
| packed = false; // Normal, unpacked value. |
| } else if (extension.descriptor.isRepeated |
| && extension.descriptor.type.isPackable() |
| && wireType |
| == FieldSet.getWireFormatForFieldType( |
| extension.descriptor.getLiteType(), /* isPacked= */ true)) { |
| packed = true; // Packed value. |
| } else { |
| unknown = true; // Wrong wire type. |
| } |
| |
| if (unknown) { // Unknown field or wrong wire type. Skip. |
| return parseUnknownField(tag, input); |
| } |
| |
| ensureExtensionsAreMutable(); |
| |
| if (packed) { |
| int length = input.readRawVarint32(); |
| int limit = input.pushLimit(length); |
| if (extension.descriptor.getLiteType() == WireFormat.FieldType.ENUM) { |
| while (input.getBytesUntilLimit() > 0) { |
| int rawValue = input.readEnum(); |
| Object value = extension.descriptor.getEnumType().findValueByNumber(rawValue); |
| if (value == null) { |
| // If the number isn't recognized as a valid value for this |
| // enum, drop it (don't even add it to unknownFields). |
| return true; |
| } |
| extensions.addRepeatedField( |
| extension.descriptor, extension.singularToFieldSetType(value)); |
| } |
| } else { |
| while (input.getBytesUntilLimit() > 0) { |
| Object value = |
| FieldSet.readPrimitiveField( |
| input, extension.descriptor.getLiteType(), /*checkUtf8=*/ false); |
| extensions.addRepeatedField(extension.descriptor, value); |
| } |
| } |
| input.popLimit(limit); |
| } else { |
| Object value; |
| switch (extension.descriptor.getLiteJavaType()) { |
| case MESSAGE: |
| { |
| MessageLite.Builder subBuilder = null; |
| if (!extension.descriptor.isRepeated()) { |
| MessageLite existingValue = (MessageLite) extensions.getField(extension.descriptor); |
| if (existingValue != null) { |
| subBuilder = existingValue.toBuilder(); |
| } |
| } |
| if (subBuilder == null) { |
| subBuilder = extension.getMessageDefaultInstance().newBuilderForType(); |
| } |
| if (extension.descriptor.getLiteType() == WireFormat.FieldType.GROUP) { |
| input.readGroup(extension.getNumber(), subBuilder, extensionRegistry); |
| } else { |
| input.readMessage(subBuilder, extensionRegistry); |
| } |
| value = subBuilder.build(); |
| break; |
| } |
| case ENUM: |
| int rawValue = input.readEnum(); |
| value = extension.descriptor.getEnumType().findValueByNumber(rawValue); |
| // If the number isn't recognized as a valid value for this enum, |
| // write it to unknown fields object. |
| if (value == null) { |
| mergeVarintField(fieldNumber, rawValue); |
| return true; |
| } |
| break; |
| default: |
| value = |
| FieldSet.readPrimitiveField( |
| input, extension.descriptor.getLiteType(), /*checkUtf8=*/ false); |
| break; |
| } |
| |
| if (extension.descriptor.isRepeated()) { |
| extensions.addRepeatedField( |
| extension.descriptor, extension.singularToFieldSetType(value)); |
| } else { |
| extensions.setField(extension.descriptor, extension.singularToFieldSetType(value)); |
| } |
| } |
| return true; |
| } |
| |
| /** |
| * Parse an unknown field or an extension. For use by generated code only. |
| * |
| * <p>For use by generated code only. |
| * |
| * @return {@code true} unless the tag is an end-group tag. |
| */ |
| protected <MessageType extends MessageLite> boolean parseUnknownFieldAsMessageSet( |
| MessageType defaultInstance, |
| CodedInputStream input, |
| ExtensionRegistryLite extensionRegistry, |
| int tag) |
| throws IOException { |
| |
| if (tag == WireFormat.MESSAGE_SET_ITEM_TAG) { |
| mergeMessageSetExtensionFromCodedStream(defaultInstance, input, extensionRegistry); |
| return true; |
| } |
| |
| // TODO(dweis): Do we really want to support non message set wire format in message sets? |
| // Full runtime does... So we do for now. |
| int wireType = WireFormat.getTagWireType(tag); |
| if (wireType == WireFormat.WIRETYPE_LENGTH_DELIMITED) { |
| return parseUnknownField(defaultInstance, input, extensionRegistry, tag); |
| } else { |
| // TODO(dweis): Should we throw on invalid input? Full runtime does not... |
| return input.skipField(tag); |
| } |
| } |
| |
| /** |
| * Merges the message set from the input stream; requires message set wire format. |
| * |
| * @param defaultInstance the default instance of the containing message we are parsing in |
| * @param input the stream to parse from |
| * @param extensionRegistry the registry to use when parsing |
| */ |
| private <MessageType extends MessageLite> void mergeMessageSetExtensionFromCodedStream( |
| MessageType defaultInstance, |
| CodedInputStream input, |
| ExtensionRegistryLite extensionRegistry) |
| throws IOException { |
| // The wire format for MessageSet is: |
| // message MessageSet { |
| // repeated group Item = 1 { |
| // required int32 typeId = 2; |
| // required bytes message = 3; |
| // } |
| // } |
| // "typeId" is the extension's field number. The extension can only be |
| // a message type, where "message" contains the encoded bytes of that |
| // message. |
| // |
| // In practice, we will probably never see a MessageSet item in which |
| // the message appears before the type ID, or where either field does not |
| // appear exactly once. However, in theory such cases are valid, so we |
| // should be prepared to accept them. |
| |
| int typeId = 0; |
| ByteString rawBytes = null; // If we encounter "message" before "typeId" |
| GeneratedExtension<?, ?> extension = null; |
| |
| // Read bytes from input, if we get it's type first then parse it eagerly, |
| // otherwise we store the raw bytes in a local variable. |
| while (true) { |
| final int tag = input.readTag(); |
| if (tag == 0) { |
| break; |
| } |
| |
| if (tag == WireFormat.MESSAGE_SET_TYPE_ID_TAG) { |
| typeId = input.readUInt32(); |
| if (typeId != 0) { |
| extension = extensionRegistry.findLiteExtensionByNumber(defaultInstance, typeId); |
| } |
| |
| } else if (tag == WireFormat.MESSAGE_SET_MESSAGE_TAG) { |
| if (typeId != 0) { |
| if (extension != null) { |
| // We already know the type, so we can parse directly from the |
| // input with no copying. Hooray! |
| eagerlyMergeMessageSetExtension(input, extension, extensionRegistry, typeId); |
| rawBytes = null; |
| continue; |
| } |
| } |
| // We haven't seen a type ID yet or we want parse message lazily. |
| rawBytes = input.readBytes(); |
| |
| } else { // Unknown tag. Skip it. |
| if (!input.skipField(tag)) { |
| break; // End of group |
| } |
| } |
| } |
| input.checkLastTagWas(WireFormat.MESSAGE_SET_ITEM_END_TAG); |
| |
| // Process the raw bytes. |
| if (rawBytes != null && typeId != 0) { // Zero is not a valid type ID. |
| if (extension != null) { // We known the type |
| mergeMessageSetExtensionFromBytes(rawBytes, extensionRegistry, extension); |
| } else { // We don't know how to parse this. Ignore it. |
| if (rawBytes != null) { |
| mergeLengthDelimitedField(typeId, rawBytes); |
| } |
| } |
| } |
| } |
| |
| private void eagerlyMergeMessageSetExtension( |
| CodedInputStream input, |
| GeneratedExtension<?, ?> extension, |
| ExtensionRegistryLite extensionRegistry, |
| int typeId) |
| throws IOException { |
| int fieldNumber = typeId; |
| int tag = WireFormat.makeTag(typeId, WireFormat.WIRETYPE_LENGTH_DELIMITED); |
| parseExtension(input, extensionRegistry, extension, tag, fieldNumber); |
| } |
| |
| private void mergeMessageSetExtensionFromBytes( |
| ByteString rawBytes, |
| ExtensionRegistryLite extensionRegistry, |
| GeneratedExtension<?, ?> extension) |
| throws IOException { |
| MessageLite.Builder subBuilder = null; |
| MessageLite existingValue = (MessageLite) extensions.getField(extension.descriptor); |
| if (existingValue != null) { |
| subBuilder = existingValue.toBuilder(); |
| } |
| if (subBuilder == null) { |
| subBuilder = extension.getMessageDefaultInstance().newBuilderForType(); |
| } |
| subBuilder.mergeFrom(rawBytes, extensionRegistry); |
| MessageLite value = subBuilder.build(); |
| |
| ensureExtensionsAreMutable() |
| .setField(extension.descriptor, extension.singularToFieldSetType(value)); |
| } |
| |
| FieldSet<ExtensionDescriptor> ensureExtensionsAreMutable() { |
| if (extensions.isImmutable()) { |
| extensions = extensions.clone(); |
| } |
| return extensions; |
| } |
| |
| private void verifyExtensionContainingType(final GeneratedExtension<MessageType, ?> extension) { |
| if (extension.getContainingTypeDefaultInstance() != getDefaultInstanceForType()) { |
| // This can only happen if someone uses unchecked operations. |
| throw new IllegalArgumentException( |
| "This extension is for a different message type. Please make " |
| + "sure that you are not suppressing any generics type warnings."); |
| } |
| } |
| |
| /** Check if a singular extension is present. */ |
| @Override |
| public final <Type> boolean hasExtension(final ExtensionLite<MessageType, Type> extension) { |
| GeneratedExtension<MessageType, Type> extensionLite = checkIsLite(extension); |
| |
| verifyExtensionContainingType(extensionLite); |
| return extensions.hasField(extensionLite.descriptor); |
| } |
| |
| /** Get the number of elements in a repeated extension. */ |
| @Override |
| public final <Type> int getExtensionCount( |
| final ExtensionLite<MessageType, List<Type>> extension) { |
| GeneratedExtension<MessageType, List<Type>> extensionLite = checkIsLite(extension); |
| |
| verifyExtensionContainingType(extensionLite); |
| return extensions.getRepeatedFieldCount(extensionLite.descriptor); |
| } |
| |
| /** Get the value of an extension. */ |
| @Override |
| @SuppressWarnings("unchecked") |
| public final <Type> Type getExtension(final ExtensionLite<MessageType, Type> extension) { |
| GeneratedExtension<MessageType, Type> extensionLite = checkIsLite(extension); |
| |
| verifyExtensionContainingType(extensionLite); |
| final Object value = extensions.getField(extensionLite.descriptor); |
| if (value == null) { |
| return extensionLite.defaultValue; |
| } else { |
| return (Type) extensionLite.fromFieldSetType(value); |
| } |
| } |
| |
| /** Get one element of a repeated extension. */ |
| @Override |
| @SuppressWarnings("unchecked") |
| public final <Type> Type getExtension( |
| final ExtensionLite<MessageType, List<Type>> extension, final int index) { |
| GeneratedExtension<MessageType, List<Type>> extensionLite = checkIsLite(extension); |
| |
| verifyExtensionContainingType(extensionLite); |
| return (Type) |
| extensionLite.singularFromFieldSetType( |
| extensions.getRepeatedField(extensionLite.descriptor, index)); |
| } |
| |
| /** Called by subclasses to check if all extensions are initialized. */ |
| protected boolean extensionsAreInitialized() { |
| return extensions.isInitialized(); |
| } |
| |
| /** |
| * Used by subclasses to serialize extensions. Extension ranges may be interleaved with field |
| * numbers, but we must write them in canonical (sorted by field number) order. ExtensionWriter |
| * helps us write individual ranges of extensions at once. |
| */ |
| protected class ExtensionWriter { |
| // Imagine how much simpler this code would be if Java iterators had |
| // a way to get the next element without advancing the iterator. |
| |
| private final Iterator<Map.Entry<ExtensionDescriptor, Object>> iter = extensions.iterator(); |
| private Map.Entry<ExtensionDescriptor, Object> next; |
| private final boolean messageSetWireFormat; |
| |
| private ExtensionWriter(boolean messageSetWireFormat) { |
| if (iter.hasNext()) { |
| next = iter.next(); |
| } |
| this.messageSetWireFormat = messageSetWireFormat; |
| } |
| |
| public void writeUntil(final int end, final CodedOutputStream output) throws IOException { |
| while (next != null && next.getKey().getNumber() < end) { |
| ExtensionDescriptor extension = next.getKey(); |
| if (messageSetWireFormat |
| && extension.getLiteJavaType() == WireFormat.JavaType.MESSAGE |
| && !extension.isRepeated()) { |
| output.writeMessageSetExtension(extension.getNumber(), (MessageLite) next.getValue()); |
| } else { |
| FieldSet.writeField(extension, next.getValue(), output); |
| } |
| if (iter.hasNext()) { |
| next = iter.next(); |
| } else { |
| next = null; |
| } |
| } |
| } |
| } |
| |
| protected ExtensionWriter newExtensionWriter() { |
| return new ExtensionWriter(false); |
| } |
| |
| protected ExtensionWriter newMessageSetExtensionWriter() { |
| return new ExtensionWriter(true); |
| } |
| |
| /** Called by subclasses to compute the size of extensions. */ |
| protected int extensionsSerializedSize() { |
| return extensions.getSerializedSize(); |
| } |
| |
| protected int extensionsSerializedSizeAsMessageSet() { |
| return extensions.getMessageSetSerializedSize(); |
| } |
| } |
| |
| /** Lite equivalent of {@link GeneratedMessage.ExtendableBuilder}. */ |
| @SuppressWarnings("unchecked") |
| public abstract static class ExtendableBuilder< |
| MessageType extends ExtendableMessage<MessageType, BuilderType>, |
| BuilderType extends ExtendableBuilder<MessageType, BuilderType>> |
| extends Builder<MessageType, BuilderType> |
| implements ExtendableMessageOrBuilder<MessageType, BuilderType> { |
| protected ExtendableBuilder(MessageType defaultInstance) { |
| super(defaultInstance); |
| } |
| |
| // For immutable message conversion. |
| void internalSetExtensionSet(FieldSet<ExtensionDescriptor> extensions) { |
| copyOnWrite(); |
| instance.extensions = extensions; |
| } |
| |
| @Override |
| protected void copyOnWrite() { |
| if (!isBuilt) { |
| return; |
| } |
| |
| super.copyOnWrite(); |
| instance.extensions = instance.extensions.clone(); |
| } |
| |
| private FieldSet<ExtensionDescriptor> ensureExtensionsAreMutable() { |
| FieldSet<ExtensionDescriptor> extensions = instance.extensions; |
| if (extensions.isImmutable()) { |
| extensions = extensions.clone(); |
| instance.extensions = extensions; |
| } |
| return extensions; |
| } |
| |
| @Override |
| public final MessageType buildPartial() { |
| if (isBuilt) { |
| return instance; |
| } |
| |
| instance.extensions.makeImmutable(); |
| return super.buildPartial(); |
| } |
| |
| private void verifyExtensionContainingType(final GeneratedExtension<MessageType, ?> extension) { |
| if (extension.getContainingTypeDefaultInstance() != getDefaultInstanceForType()) { |
| // This can only happen if someone uses unchecked operations. |
| throw new IllegalArgumentException( |
| "This extension is for a different message type. Please make " |
| + "sure that you are not suppressing any generics type warnings."); |
| } |
| } |
| |
| /** Check if a singular extension is present. */ |
| @Override |
| public final <Type> boolean hasExtension(final ExtensionLite<MessageType, Type> extension) { |
| return instance.hasExtension(extension); |
| } |
| |
| /** Get the number of elements in a repeated extension. */ |
| @Override |
| public final <Type> int getExtensionCount( |
| final ExtensionLite<MessageType, List<Type>> extension) { |
| return instance.getExtensionCount(extension); |
| } |
| |
| /** Get the value of an extension. */ |
| @Override |
| @SuppressWarnings("unchecked") |
| public final <Type> Type getExtension(final ExtensionLite<MessageType, Type> extension) { |
| return instance.getExtension(extension); |
| } |
| |
| /** Get one element of a repeated extension. */ |
| @Override |
| @SuppressWarnings("unchecked") |
| public final <Type> Type getExtension( |
| final ExtensionLite<MessageType, List<Type>> extension, final int index) { |
| return instance.getExtension(extension, index); |
| } |
| |
| /** Set the value of an extension. */ |
| public final <Type> BuilderType setExtension( |
| final ExtensionLite<MessageType, Type> extension, final Type value) { |
| GeneratedExtension<MessageType, Type> extensionLite = checkIsLite(extension); |
| |
| verifyExtensionContainingType(extensionLite); |
| copyOnWrite(); |
| ensureExtensionsAreMutable() |
| .setField(extensionLite.descriptor, extensionLite.toFieldSetType(value)); |
| return (BuilderType) this; |
| } |
| |
| /** Set the value of one element of a repeated extension. */ |
| public final <Type> BuilderType setExtension( |
| final ExtensionLite<MessageType, List<Type>> extension, final int index, final Type value) { |
| GeneratedExtension<MessageType, List<Type>> extensionLite = checkIsLite(extension); |
| |
| verifyExtensionContainingType(extensionLite); |
| copyOnWrite(); |
| ensureExtensionsAreMutable() |
| .setRepeatedField( |
| extensionLite.descriptor, index, extensionLite.singularToFieldSetType(value)); |
| return (BuilderType) this; |
| } |
| |
| /** Append a value to a repeated extension. */ |
| public final <Type> BuilderType addExtension( |
| final ExtensionLite<MessageType, List<Type>> extension, final Type value) { |
| GeneratedExtension<MessageType, List<Type>> extensionLite = checkIsLite(extension); |
| |
| verifyExtensionContainingType(extensionLite); |
| copyOnWrite(); |
| ensureExtensionsAreMutable() |
| .addRepeatedField(extensionLite.descriptor, extensionLite.singularToFieldSetType(value)); |
| return (BuilderType) this; |
| } |
| |
| /** Clear an extension. */ |
| public final <Type> BuilderType clearExtension(final ExtensionLite<MessageType, ?> extension) { |
| GeneratedExtension<MessageType, ?> extensionLite = checkIsLite(extension); |
| |
| verifyExtensionContainingType(extensionLite); |
| copyOnWrite(); |
| ensureExtensionsAreMutable().clearField(extensionLite.descriptor); |
| return (BuilderType) this; |
| } |
| } |
| |
| // ----------------------------------------------------------------- |
| |
| /** For use by generated code only. */ |
| public static <ContainingType extends MessageLite, Type> |
| GeneratedExtension<ContainingType, Type> newSingularGeneratedExtension( |
| final ContainingType containingTypeDefaultInstance, |
| final Type defaultValue, |
| final MessageLite messageDefaultInstance, |
| final Internal.EnumLiteMap<?> enumTypeMap, |
| final int number, |
| final WireFormat.FieldType type, |
| final Class singularType) { |
| return new GeneratedExtension<ContainingType, Type>( |
| containingTypeDefaultInstance, |
| defaultValue, |
| messageDefaultInstance, |
| new ExtensionDescriptor( |
| enumTypeMap, number, type, /* isRepeated= */ false, /* isPacked= */ false), |
| singularType); |
| } |
| |
| /** For use by generated code only. */ |
| public static <ContainingType extends MessageLite, Type> |
| GeneratedExtension<ContainingType, Type> newRepeatedGeneratedExtension( |
| final ContainingType containingTypeDefaultInstance, |
| final MessageLite messageDefaultInstance, |
| final Internal.EnumLiteMap<?> enumTypeMap, |
| final int number, |
| final WireFormat.FieldType type, |
| final boolean isPacked, |
| final Class singularType) { |
| @SuppressWarnings("unchecked") // Subclasses ensure Type is a List |
| Type emptyList = (Type) Collections.emptyList(); |
| return new GeneratedExtension<ContainingType, Type>( |
| containingTypeDefaultInstance, |
| emptyList, |
| messageDefaultInstance, |
| new ExtensionDescriptor(enumTypeMap, number, type, /* isRepeated= */ true, isPacked), |
| singularType); |
| } |
| |
| static final class ExtensionDescriptor |
| implements FieldSet.FieldDescriptorLite<ExtensionDescriptor> { |
| ExtensionDescriptor( |
| final Internal.EnumLiteMap<?> enumTypeMap, |
| final int number, |
| final WireFormat.FieldType type, |
| final boolean isRepeated, |
| final boolean isPacked) { |
| this.enumTypeMap = enumTypeMap; |
| this.number = number; |
| this.type = type; |
| this.isRepeated = isRepeated; |
| this.isPacked = isPacked; |
| } |
| |
| final Internal.EnumLiteMap<?> enumTypeMap; |
| final int number; |
| final WireFormat.FieldType type; |
| final boolean isRepeated; |
| final boolean isPacked; |
| |
| @Override |
| public int getNumber() { |
| return number; |
| } |
| |
| @Override |
| public WireFormat.FieldType getLiteType() { |
| return type; |
| } |
| |
| @Override |
| public WireFormat.JavaType getLiteJavaType() { |
| return type.getJavaType(); |
| } |
| |
| @Override |
| public boolean isRepeated() { |
| return isRepeated; |
| } |
| |
| @Override |
| public boolean isPacked() { |
| return isPacked; |
| } |
| |
| @Override |
| public Internal.EnumLiteMap<?> getEnumType() { |
| return enumTypeMap; |
| } |
| |
| @Override |
| @SuppressWarnings("unchecked") |
| public MessageLite.Builder internalMergeFrom(MessageLite.Builder to, MessageLite from) { |
| return ((Builder) to).mergeFrom((GeneratedMessageLite) from); |
| } |
| |
| |
| @Override |
| public int compareTo(ExtensionDescriptor other) { |
| return number - other.number; |
| } |
| } |
| |
| // ================================================================= |
| |
| /** Calls Class.getMethod and throws a RuntimeException if it fails. */ |
| @SuppressWarnings("unchecked") |
| static Method getMethodOrDie(Class clazz, String name, Class... params) { |
| try { |
| return clazz.getMethod(name, params); |
| } catch (NoSuchMethodException e) { |
| throw new RuntimeException( |
| "Generated message class \"" + clazz.getName() + "\" missing method \"" + name + "\".", |
| e); |
| } |
| } |
| |
| /** Calls invoke and throws a RuntimeException if it fails. */ |
| static Object invokeOrDie(Method method, Object object, Object... params) { |
| try { |
| return method.invoke(object, params); |
| } catch (IllegalAccessException e) { |
| throw new RuntimeException( |
| "Couldn't use Java reflection to implement protocol message reflection.", e); |
| } catch (InvocationTargetException e) { |
| final Throwable cause = e.getCause(); |
| if (cause instanceof RuntimeException) { |
| throw (RuntimeException) cause; |
| } else if (cause instanceof Error) { |
| throw (Error) cause; |
| } else { |
| throw new RuntimeException( |
| "Unexpected exception thrown by generated accessor method.", cause); |
| } |
| } |
| } |
| |
| |
| /** |
| * Lite equivalent to {@link GeneratedMessage.GeneratedExtension}. |
| * |
| * <p>Users should ignore the contents of this class and only use objects of this type as |
| * parameters to extension accessors and ExtensionRegistry.add(). |
| */ |
| public static class GeneratedExtension<ContainingType extends MessageLite, Type> |
| extends ExtensionLite<ContainingType, Type> { |
| |
| /** |
| * Create a new instance with the given parameters. |
| * |
| * <p>The last parameter {@code singularType} is only needed for enum types. We store integer |
| * values for enum types in a {@link ExtendableMessage} and use Java reflection to convert an |
| * integer value back into a concrete enum object. |
| */ |
| GeneratedExtension( |
| final ContainingType containingTypeDefaultInstance, |
| final Type defaultValue, |
| final MessageLite messageDefaultInstance, |
| final ExtensionDescriptor descriptor, |
| final Class singularType) { |
| // Defensive checks to verify the correct initialization order of |
| // GeneratedExtensions and their related GeneratedMessages. |
| if (containingTypeDefaultInstance == null) { |
| throw new IllegalArgumentException("Null containingTypeDefaultInstance"); |
| } |
| if (descriptor.getLiteType() == WireFormat.FieldType.MESSAGE |
| && messageDefaultInstance == null) { |
| throw new IllegalArgumentException("Null messageDefaultInstance"); |
| } |
| this.containingTypeDefaultInstance = containingTypeDefaultInstance; |
| this.defaultValue = defaultValue; |
| this.messageDefaultInstance = messageDefaultInstance; |
| this.descriptor = descriptor; |
| } |
| |
| final ContainingType containingTypeDefaultInstance; |
| final Type defaultValue; |
| final MessageLite messageDefaultInstance; |
| final ExtensionDescriptor descriptor; |
| |
| /** Default instance of the type being extended, used to identify that type. */ |
| public ContainingType getContainingTypeDefaultInstance() { |
| return containingTypeDefaultInstance; |
| } |
| |
| /** Get the field number. */ |
| @Override |
| public int getNumber() { |
| return descriptor.getNumber(); |
| } |
| |
| /** |
| * If the extension is an embedded message or group, returns the default instance of the |
| * message. |
| */ |
| @Override |
| public MessageLite getMessageDefaultInstance() { |
| return messageDefaultInstance; |
| } |
| |
| @SuppressWarnings("unchecked") |
| Object fromFieldSetType(final Object value) { |
| if (descriptor.isRepeated()) { |
| if (descriptor.getLiteJavaType() == WireFormat.JavaType.ENUM) { |
| final List result = new ArrayList(); |
| for (final Object element : (List) value) { |
| result.add(singularFromFieldSetType(element)); |
| } |
| return result; |
| } else { |
| return value; |
| } |
| } else { |
| return singularFromFieldSetType(value); |
| } |
| } |
| |
| Object singularFromFieldSetType(final Object value) { |
| if (descriptor.getLiteJavaType() == WireFormat.JavaType.ENUM) { |
| return descriptor.enumTypeMap.findValueByNumber((Integer) value); |
| } else { |
| return value; |
| } |
| } |
| |
| @SuppressWarnings("unchecked") |
| Object toFieldSetType(final Object value) { |
| if (descriptor.isRepeated()) { |
| if (descriptor.getLiteJavaType() == WireFormat.JavaType.ENUM) { |
| final List result = new ArrayList(); |
| for (final Object element : (List) value) { |
| result.add(singularToFieldSetType(element)); |
| } |
| return result; |
| } else { |
| return value; |
| } |
| } else { |
| return singularToFieldSetType(value); |
| } |
| } |
| |
| Object singularToFieldSetType(final Object value) { |
| if (descriptor.getLiteJavaType() == WireFormat.JavaType.ENUM) { |
| return ((Internal.EnumLite) value).getNumber(); |
| } else { |
| return value; |
| } |
| } |
| |
| @Override |
| public FieldType getLiteType() { |
| return descriptor.getLiteType(); |
| } |
| |
| @Override |
| public boolean isRepeated() { |
| return descriptor.isRepeated; |
| } |
| |
| @Override |
| public Type getDefaultValue() { |
| return defaultValue; |
| } |
| } |
| |
| /** |
| * A serialized (serializable) form of the generated message. Stores the message as a class name |
| * and a byte array. |
| */ |
| protected static final class SerializedForm implements Serializable { |
| |
| public static SerializedForm of(MessageLite message) { |
| return new SerializedForm(message); |
| } |
| |
| private static final long serialVersionUID = 0L; |
| |
| // since v3.6.1 |
| private final Class<?> messageClass; |
| // only included for backwards compatibility before messageClass was added |
| private final String messageClassName; |
| private final byte[] asBytes; |
| |
| /** |
| * Creates the serialized form by calling {@link com.google.protobuf.MessageLite#toByteArray}. |
| * |
| * @param regularForm the message to serialize |
| */ |
| SerializedForm(MessageLite regularForm) { |
| messageClass = regularForm.getClass(); |
| messageClassName = messageClass.getName(); |
| asBytes = regularForm.toByteArray(); |
| } |
| |
| /** |
| * When read from an ObjectInputStream, this method converts this object back to the regular |
| * form. Part of Java's serialization magic. |
| * |
| * @return a GeneratedMessage of the type that was serialized |
| */ |
| @SuppressWarnings("unchecked") |
| protected Object readResolve() throws ObjectStreamException { |
| try { |
| Class<?> messageClass = resolveMessageClass(); |
| java.lang.reflect.Field defaultInstanceField = |
| messageClass.getDeclaredField("DEFAULT_INSTANCE"); |
| defaultInstanceField.setAccessible(true); |
| MessageLite defaultInstance = (MessageLite) defaultInstanceField.get(null); |
| return defaultInstance.newBuilderForType().mergeFrom(asBytes).buildPartial(); |
| } catch (ClassNotFoundException e) { |
| throw new RuntimeException("Unable to find proto buffer class: " + messageClassName, e); |
| } catch (NoSuchFieldException e) { |
| return readResolveFallback(); |
| } catch (SecurityException e) { |
| throw new RuntimeException("Unable to call DEFAULT_INSTANCE in " + messageClassName, e); |
| } catch (IllegalAccessException e) { |
| throw new RuntimeException("Unable to call parsePartialFrom", e); |
| } catch (InvalidProtocolBufferException e) { |
| throw new RuntimeException("Unable to understand proto buffer", e); |
| } |
| } |
| |
| /** |
| * @deprecated from v3.0.0-beta-3+, for compatibility with v2.5.0 and v2.6.1 generated code. |
| */ |
| @Deprecated |
| private Object readResolveFallback() throws ObjectStreamException { |
| try { |
| Class<?> messageClass = resolveMessageClass(); |
| java.lang.reflect.Field defaultInstanceField = |
| messageClass.getDeclaredField("defaultInstance"); |
| defaultInstanceField.setAccessible(true); |
| MessageLite defaultInstance = (MessageLite) defaultInstanceField.get(null); |
| return defaultInstance.newBuilderForType() |
| .mergeFrom(asBytes) |
| .buildPartial(); |
| } catch (ClassNotFoundException e) { |
| throw new RuntimeException("Unable to find proto buffer class: " + messageClassName, e); |
| } catch (NoSuchFieldException e) { |
| throw new RuntimeException("Unable to find defaultInstance in " + messageClassName, e); |
| } catch (SecurityException e) { |
| throw new RuntimeException("Unable to call defaultInstance in " + messageClassName, e); |
| } catch (IllegalAccessException e) { |
| throw new RuntimeException("Unable to call parsePartialFrom", e); |
| } catch (InvalidProtocolBufferException e) { |
| throw new RuntimeException("Unable to understand proto buffer", e); |
| } |
| } |
| |
| private Class<?> resolveMessageClass() throws ClassNotFoundException { |
| return messageClass != null ? messageClass : Class.forName(messageClassName); |
| } |
| } |
| |
| /** Checks that the {@link Extension} is Lite and returns it as a {@link GeneratedExtension}. */ |
| private static < |
| MessageType extends ExtendableMessage<MessageType, BuilderType>, |
| BuilderType extends ExtendableBuilder<MessageType, BuilderType>, |
| T> |
| GeneratedExtension<MessageType, T> checkIsLite(ExtensionLite<MessageType, T> extension) { |
| if (!extension.isLite()) { |
| throw new IllegalArgumentException("Expected a lite extension."); |
| } |
| |
| return (GeneratedExtension<MessageType, T>) extension; |
| } |
| |
| /** |
| * A static helper method for checking if a message is initialized, optionally memoizing. |
| * |
| * <p>For use by generated code only. |
| */ |
| protected static final <T extends GeneratedMessageLite<T, ?>> boolean isInitialized( |
| T message, boolean shouldMemoize) { |
| byte memoizedIsInitialized = |
| (Byte) message.dynamicMethod(MethodToInvoke.GET_MEMOIZED_IS_INITIALIZED); |
| if (memoizedIsInitialized == 1) { |
| return true; |
| } |
| if (memoizedIsInitialized == 0) { |
| return false; |
| } |
| boolean isInitialized = Protobuf.getInstance().schemaFor(message).isInitialized(message); |
| if (shouldMemoize) { |
| message.dynamicMethod( |
| MethodToInvoke.SET_MEMOIZED_IS_INITIALIZED, isInitialized ? message : null); |
| } |
| return isInitialized; |
| } |
| |
| protected static IntList emptyIntList() { |
| return IntArrayList.emptyList(); |
| } |
| |
| protected static IntList mutableCopy(IntList list) { |
| int size = list.size(); |
| return list.mutableCopyWithCapacity( |
| size == 0 ? AbstractProtobufList.DEFAULT_CAPACITY : size * 2); |
| } |
| |
| protected static LongList emptyLongList() { |
| return LongArrayList.emptyList(); |
| } |
| |
| protected static LongList mutableCopy(LongList list) { |
| int size = list.size(); |
| return list.mutableCopyWithCapacity( |
| size == 0 ? AbstractProtobufList.DEFAULT_CAPACITY : size * 2); |
| } |
| |
| protected static FloatList emptyFloatList() { |
| return FloatArrayList.emptyList(); |
| } |
| |
| protected static FloatList mutableCopy(FloatList list) { |
| int size = list.size(); |
| return list.mutableCopyWithCapacity( |
| size == 0 ? AbstractProtobufList.DEFAULT_CAPACITY : size * 2); |
| } |
| |
| protected static DoubleList emptyDoubleList() { |
| return DoubleArrayList.emptyList(); |
| } |
| |
| protected static DoubleList mutableCopy(DoubleList list) { |
| int size = list.size(); |
| return list.mutableCopyWithCapacity( |
| size == 0 ? AbstractProtobufList.DEFAULT_CAPACITY : size * 2); |
| } |
| |
| protected static BooleanList emptyBooleanList() { |
| return BooleanArrayList.emptyList(); |
| } |
| |
| protected static BooleanList mutableCopy(BooleanList list) { |
| int size = list.size(); |
| return list.mutableCopyWithCapacity( |
| size == 0 ? AbstractProtobufList.DEFAULT_CAPACITY : size * 2); |
| } |
| |
| protected static <E> ProtobufList<E> emptyProtobufList() { |
| return ProtobufArrayList.emptyList(); |
| } |
| |
| protected static <E> ProtobufList<E> mutableCopy(ProtobufList<E> list) { |
| int size = list.size(); |
| return list.mutableCopyWithCapacity( |
| size == 0 ? AbstractProtobufList.DEFAULT_CAPACITY : size * 2); |
| } |
| |
| /** |
| * A {@link Parser} implementation that delegates to the default instance. |
| * |
| * <p>For use by generated code only. |
| */ |
| protected static class DefaultInstanceBasedParser<T extends GeneratedMessageLite<T, ?>> |
| extends AbstractParser<T> { |
| |
| private final T defaultInstance; |
| |
| public DefaultInstanceBasedParser(T defaultInstance) { |
| this.defaultInstance = defaultInstance; |
| } |
| |
| @Override |
| public T parsePartialFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| return GeneratedMessageLite.parsePartialFrom(defaultInstance, input, extensionRegistry); |
| } |
| |
| @Override |
| public T parsePartialFrom( |
| byte[] input, int offset, int length, ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| return GeneratedMessageLite.parsePartialFrom( |
| defaultInstance, input, offset, length, extensionRegistry); |
| } |
| } |
| |
| /** |
| * A static helper method for parsing a partial from input using the extension registry and the |
| * instance. |
| */ |
| // TODO(dweis): Should this verify that the last tag was 0? |
| static <T extends GeneratedMessageLite<T, ?>> T parsePartialFrom( |
| T instance, CodedInputStream input, ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| @SuppressWarnings("unchecked") // Guaranteed by protoc |
| T result = (T) instance.dynamicMethod(MethodToInvoke.NEW_MUTABLE_INSTANCE); |
| try { |
| // TODO(yilunchong): Try to make input with type CodedInpuStream.ArrayDecoder use |
| // fast path. |
| Protobuf.getInstance().schemaFor(result).mergeFrom( |
| result, CodedInputStreamReader.forCodedInput(input), extensionRegistry); |
| result.makeImmutable(); |
| } catch (IOException e) { |
| if (e.getCause() instanceof InvalidProtocolBufferException) { |
| throw (InvalidProtocolBufferException) e.getCause(); |
| } |
| throw new InvalidProtocolBufferException(e.getMessage()).setUnfinishedMessage(result); |
| } catch (RuntimeException e) { |
| if (e.getCause() instanceof InvalidProtocolBufferException) { |
| throw (InvalidProtocolBufferException) e.getCause(); |
| } |
| throw e; |
| } |
| return result; |
| } |
| |
| /** A static helper method for parsing a partial from byte array. */ |
| static <T extends GeneratedMessageLite<T, ?>> T parsePartialFrom( |
| T instance, byte[] input, int offset, int length, ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| @SuppressWarnings("unchecked") // Guaranteed by protoc |
| T result = (T) instance.dynamicMethod(MethodToInvoke.NEW_MUTABLE_INSTANCE); |
| try { |
| Protobuf.getInstance().schemaFor(result).mergeFrom( |
| result, input, offset, offset + length, |
| new ArrayDecoders.Registers(extensionRegistry)); |
| result.makeImmutable(); |
| if (result.memoizedHashCode != 0) { |
| throw new RuntimeException(); |
| } |
| } catch (IOException e) { |
| if (e.getCause() instanceof InvalidProtocolBufferException) { |
| throw (InvalidProtocolBufferException) e.getCause(); |
| } |
| throw new InvalidProtocolBufferException(e.getMessage()).setUnfinishedMessage(result); |
| } catch (IndexOutOfBoundsException e) { |
| throw InvalidProtocolBufferException.truncatedMessage().setUnfinishedMessage(result); |
| } |
| return result; |
| } |
| |
| protected static <T extends GeneratedMessageLite<T, ?>> T parsePartialFrom( |
| T defaultInstance, CodedInputStream input) throws InvalidProtocolBufferException { |
| return parsePartialFrom(defaultInstance, input, ExtensionRegistryLite.getEmptyRegistry()); |
| } |
| |
| /** |
| * Helper method to check if message is initialized. |
| * |
| * @throws InvalidProtocolBufferException if it is not initialized. |
| * @return The message to check. |
| */ |
| private static <T extends GeneratedMessageLite<T, ?>> T checkMessageInitialized(T message) |
| throws InvalidProtocolBufferException { |
| if (message != null && !message.isInitialized()) { |
| throw message |
| .newUninitializedMessageException() |
| .asInvalidProtocolBufferException() |
| .setUnfinishedMessage(message); |
| } |
| return message; |
| } |
| |
| // Validates last tag. |
| protected static <T extends GeneratedMessageLite<T, ?>> T parseFrom( |
| T defaultInstance, ByteBuffer data, ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| return checkMessageInitialized( |
| parseFrom(defaultInstance, CodedInputStream.newInstance(data), extensionRegistry)); |
| } |
| |
| // Validates last tag. |
| protected static <T extends GeneratedMessageLite<T, ?>> T parseFrom( |
| T defaultInstance, ByteBuffer data) throws InvalidProtocolBufferException { |
| return parseFrom(defaultInstance, data, ExtensionRegistryLite.getEmptyRegistry()); |
| } |
| |
| // Validates last tag. |
| protected static <T extends GeneratedMessageLite<T, ?>> T parseFrom( |
| T defaultInstance, ByteString data) throws InvalidProtocolBufferException { |
| return checkMessageInitialized( |
| parseFrom(defaultInstance, data, ExtensionRegistryLite.getEmptyRegistry())); |
| } |
| |
| // Validates last tag. |
| protected static <T extends GeneratedMessageLite<T, ?>> T parseFrom( |
| T defaultInstance, ByteString data, ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| return checkMessageInitialized(parsePartialFrom(defaultInstance, data, extensionRegistry)); |
| } |
| |
| // This is a special case since we want to verify that the last tag is 0. We assume we exhaust the |
| // ByteString. |
| private static <T extends GeneratedMessageLite<T, ?>> T parsePartialFrom( |
| T defaultInstance, ByteString data, ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| T message; |
| try { |
| CodedInputStream input = data.newCodedInput(); |
| message = parsePartialFrom(defaultInstance, input, extensionRegistry); |
| try { |
| input.checkLastTagWas(0); |
| } catch (InvalidProtocolBufferException e) { |
| throw e.setUnfinishedMessage(message); |
| } |
| return message; |
| } catch (InvalidProtocolBufferException e) { |
| throw e; |
| } |
| } |
| |
| // This is a special case since we want to verify that the last tag is 0. We assume we exhaust the |
| // ByteString. |
| private static <T extends GeneratedMessageLite<T, ?>> T parsePartialFrom( |
| T defaultInstance, byte[] data, ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| return checkMessageInitialized( |
| parsePartialFrom(defaultInstance, data, 0, data.length, extensionRegistry)); |
| } |
| |
| // Validates last tag. |
| protected static <T extends GeneratedMessageLite<T, ?>> T parseFrom( |
| T defaultInstance, byte[] data) throws InvalidProtocolBufferException { |
| return checkMessageInitialized(parsePartialFrom( |
| defaultInstance, data, 0, data.length, ExtensionRegistryLite.getEmptyRegistry())); |
| } |
| |
| // Validates last tag. |
| protected static <T extends GeneratedMessageLite<T, ?>> T parseFrom( |
| T defaultInstance, byte[] data, ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| return checkMessageInitialized( |
| parsePartialFrom(defaultInstance, data, 0, data.length, extensionRegistry)); |
| } |
| |
| // Does not validate last tag. |
| protected static <T extends GeneratedMessageLite<T, ?>> T parseFrom( |
| T defaultInstance, InputStream input) throws InvalidProtocolBufferException { |
| return checkMessageInitialized( |
| parsePartialFrom( |
| defaultInstance, |
| CodedInputStream.newInstance(input), |
| ExtensionRegistryLite.getEmptyRegistry())); |
| } |
| |
| // Does not validate last tag. |
| protected static <T extends GeneratedMessageLite<T, ?>> T parseFrom( |
| T defaultInstance, InputStream input, ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| return checkMessageInitialized( |
| parsePartialFrom(defaultInstance, CodedInputStream.newInstance(input), extensionRegistry)); |
| } |
| |
| // Does not validate last tag. |
| protected static <T extends GeneratedMessageLite<T, ?>> T parseFrom( |
| T defaultInstance, CodedInputStream input) throws InvalidProtocolBufferException { |
| return parseFrom(defaultInstance, input, ExtensionRegistryLite.getEmptyRegistry()); |
| } |
| |
| // Does not validate last tag. |
| protected static <T extends GeneratedMessageLite<T, ?>> T parseFrom( |
| T defaultInstance, CodedInputStream input, ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| return checkMessageInitialized(parsePartialFrom(defaultInstance, input, extensionRegistry)); |
| } |
| |
| // Validates last tag. |
| protected static <T extends GeneratedMessageLite<T, ?>> T parseDelimitedFrom( |
| T defaultInstance, InputStream input) throws InvalidProtocolBufferException { |
| return checkMessageInitialized( |
| parsePartialDelimitedFrom( |
| defaultInstance, input, ExtensionRegistryLite.getEmptyRegistry())); |
| } |
| |
| // Validates last tag. |
| protected static <T extends GeneratedMessageLite<T, ?>> T parseDelimitedFrom( |
| T defaultInstance, InputStream input, ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| return checkMessageInitialized( |
| parsePartialDelimitedFrom(defaultInstance, input, extensionRegistry)); |
| } |
| |
| private static <T extends GeneratedMessageLite<T, ?>> T parsePartialDelimitedFrom( |
| T defaultInstance, InputStream input, ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| int size; |
| try { |
| int firstByte = input.read(); |
| if (firstByte == -1) { |
| return null; |
| } |
| size = CodedInputStream.readRawVarint32(firstByte, input); |
| } catch (IOException e) { |
| throw new InvalidProtocolBufferException(e.getMessage()); |
| } |
| InputStream limitedInput = new LimitedInputStream(input, size); |
| CodedInputStream codedInput = CodedInputStream.newInstance(limitedInput); |
| T message = parsePartialFrom(defaultInstance, codedInput, extensionRegistry); |
| try { |
| codedInput.checkLastTagWas(0); |
| } catch (InvalidProtocolBufferException e) { |
| throw e.setUnfinishedMessage(message); |
| } |
| return message; |
| } |
| } |
