A modern implementation of the Protobuf specification for Java 17 and upwards. Both Protobuf 2 and 3 are supported.
Protoc, the default compiler for protobuf schemas, can generate Java classes starting from a schema. The generated code, though, is really verbose and not up to date with modern versions of Java. Moreover, it is not really intended to be edited, which is not optimal if you want to have the protobuf to be part of a publicly available developer API. As a result, most projects that work with Google's protobuf create wrappers around the already gigantic classes generated by Google to make them more usable. While developing Cobalt, I faced these issues myself and, as a result, I decided to develop a custom Protobuf implementation: this repo is the result of this work.
- Download the CLI tool from the release tab or compile the project yourself using Maven
- Run the following command:
This will generate an immutable record. If you want your model to be mutable, add
protoc generate <proto> --output [directory]--mutable
- Download the CLI tool from the release tab or compile the project yourself using Maven
- Run the following command:
This will update all models in
protoc update <proto> <input_directory> --output [directory]input_directory. If you want your updated models to be mutable, add--mutable
After you have generated the model, compile your project. Let's say your model is named ScalarMessage, then a class named ScalarMessageSpec will be generated. Now you can easily encode/decode ScalarMessage using ScalarMessageSpec:
ScalarMessage scalarMessage = ...;
var encoded = ScalarMessageSpec.encode(scalarMessage); // Encodes a message as an array of bytes
var decoded = ScalarMessageSpec.decode(encoded); // Decodes a message from an array of bytes
Let's take an example schema to make some considerations on the differences between this library and Google's implementation.
ScalarMessage.proto (15 LOC)
message ScalarMessage {
optional fixed32 fixed32 = 1;
optional sfixed32 sfixed32 = 2;
optional int32 int32 = 3;
optional uint32 uint32 = 4;
optional fixed64 fixed64 = 5;
optional sfixed64 sfixed64 = 6;
optional int64 int64 = 7;
optional uint64 uint64 = 8;
optional float float = 9;
optional double double = 10;
optional bool bool = 11;
optional string string = 12;
optional bytes bytes = 13;
}
ModernProtobuf uses records by default to produce immutable and concise models. If you need your models to be mutable, ModernProtobuf's CLI tool can generate a mutable class just as easily. Google's implementation, on the other hand, produces verbose models that cannot be edited. There is no option to make your data immutable. Here are the models generated by each implementation, alongside how many lines of code were used:
ModernProtobuf immutable java record (28 LOC)
public record ModernScalarMessage(
@ProtobufProperty(index = 1, type = ProtobufType.FIXED32)
int fixed32,
@ProtobufProperty(index = 2, type = ProtobufType.SFIXED32)
int sfixed32,
@ProtobufProperty(index = 3, type = ProtobufType.INT32)
int int32,
@ProtobufProperty(index = 4, type = ProtobufType.UINT32)
int uint32,
@ProtobufProperty(index = 5, type = ProtobufType.FIXED64)
long fixed64,
@ProtobufProperty(index = 6, type = ProtobufType.SFIXED64)
long sfixed64,
@ProtobufProperty(index = 7, type = ProtobufType.INT64)
long int64,
@ProtobufProperty(index = 8, type = ProtobufType.UINT64)
long uint64,
@ProtobufProperty(index = 9, type = ProtobufType.FLOAT)
float _float,
@ProtobufProperty(index = 10, type = ProtobufType.DOUBLE)
double _double,
@ProtobufProperty(index = 11, type = ProtobufType.BOOL)
boolean bool,
@ProtobufProperty(index = 12, type = ProtobufType.STRING)
String string,
@ProtobufProperty(index = 13, type = ProtobufType.BYTES)
byte[] bytes
) implements ProtobufMessage { }
Google's Protobuf mutable java class (1832 LOC)
// Generated by the protocol buffer compiler. DO NOT EDIT!
// source: scalar.proto
public final class Scalar {
private Scalar() {}
public static void registerAllExtensions(
com.google.protobuf.ExtensionRegistryLite registry) {
}
public static void registerAllExtensions(
com.google.protobuf.ExtensionRegistry registry) {
registerAllExtensions(
(com.google.protobuf.ExtensionRegistryLite) registry);
}
public interface ScalarMessageOrBuilder extends
// @@protoc_insertion_point(interface_extends:it.auties.protobuf.ScalarMessage)
com.google.protobuf.MessageOrBuilder {
/**
* <code>optional fixed32 fixed32 = 1;</code>
* @return Whether the fixed32 field is set.
*/
boolean hasFixed32();
/**
* <code>optional fixed32 fixed32 = 1;</code>
* @return The fixed32.
*/
int getFixed32();
/**
* <code>optional sfixed32 sfixed32 = 2;</code>
* @return Whether the sfixed32 field is set.
*/
boolean hasSfixed32();
/**
* <code>optional sfixed32 sfixed32 = 2;</code>
* @return The sfixed32.
*/
int getSfixed32();
/**
* <code>optional int32 int32 = 3;</code>
* @return Whether the int32 field is set.
*/
boolean hasInt32();
/**
* <code>optional int32 int32 = 3;</code>
* @return The int32.
*/
int getInt32();
/**
* <code>optional uint32 uint32 = 4;</code>
* @return Whether the uint32 field is set.
*/
boolean hasUint32();
/**
* <code>optional uint32 uint32 = 4;</code>
* @return The uint32.
*/
int getUint32();
/**
* <code>optional fixed64 fixed64 = 5;</code>
* @return Whether the fixed64 field is set.
*/
boolean hasFixed64();
/**
* <code>optional fixed64 fixed64 = 5;</code>
* @return The fixed64.
*/
long getFixed64();
/**
* <code>optional sfixed64 sfixed64 = 6;</code>
* @return Whether the sfixed64 field is set.
*/
boolean hasSfixed64();
/**
* <code>optional sfixed64 sfixed64 = 6;</code>
* @return The sfixed64.
*/
long getSfixed64();
/**
* <code>optional int64 int64 = 7;</code>
* @return Whether the int64 field is set.
*/
boolean hasInt64();
/**
* <code>optional int64 int64 = 7;</code>
* @return The int64.
*/
long getInt64();
/**
* <code>optional uint64 uint64 = 8;</code>
* @return Whether the uint64 field is set.
*/
boolean hasUint64();
/**
* <code>optional uint64 uint64 = 8;</code>
* @return The uint64.
*/
long getUint64();
/**
* <code>optional float float = 9;</code>
* @return Whether the float field is set.
*/
boolean hasFloat();
/**
* <code>optional float float = 9;</code>
* @return The float.
*/
float getFloat();
/**
* <code>optional double double = 10;</code>
* @return Whether the double field is set.
*/
boolean hasDouble();
/**
* <code>optional double double = 10;</code>
* @return The double.
*/
double getDouble();
/**
* <code>optional bool bool = 11;</code>
* @return Whether the bool field is set.
*/
boolean hasBool();
/**
* <code>optional bool bool = 11;</code>
* @return The bool.
*/
boolean getBool();
/**
* <code>optional string string = 12;</code>
* @return Whether the string field is set.
*/
boolean hasString();
/**
* <code>optional string string = 12;</code>
* @return The string.
*/
java.lang.String getString();
/**
* <code>optional string string = 12;</code>
* @return The bytes for string.
*/
com.google.protobuf.ByteString
getStringBytes();
/**
* <code>optional bytes bytes = 13;</code>
* @return Whether the bytes field is set.
*/
boolean hasBytes();
/**
* <code>optional bytes bytes = 13;</code>
* @return The bytes.
*/
com.google.protobuf.ByteString getBytes();
}
/**
* Protobuf type {@code it.auties.protobuf.ScalarMessage}
*/
public static final class ScalarMessage extends
com.google.protobuf.GeneratedMessageV3 implements
// @@protoc_insertion_point(message_implements:it.auties.protobuf.ScalarMessage)
ScalarMessageOrBuilder {
private static final long serialVersionUID = 0L;
// Use ScalarMessage.newBuilder() to construct.
private ScalarMessage(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
super(builder);
}
private ScalarMessage() {
string_ = "";
bytes_ = com.google.protobuf.ByteString.EMPTY;
}
@java.lang.Override
@SuppressWarnings({"unused"})
protected java.lang.Object newInstance(
UnusedPrivateParameter unused) {
return new ScalarMessage();
}
public static final com.google.protobuf.Descriptors.Descriptor
getDescriptor() {
return it.auties.protobuf.Scalar.internal_static_it_auties_protobuf_ScalarMessage_descriptor;
}
@java.lang.Override
protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
internalGetFieldAccessorTable() {
return it.auties.protobuf.Scalar.internal_static_it_auties_protobuf_ScalarMessage_fieldAccessorTable
.ensureFieldAccessorsInitialized(
it.auties.protobuf.Scalar.ScalarMessage.class, it.auties.protobuf.Scalar.ScalarMessage.Builder.class);
}
private int bitField0_;
public static final int FIXED32_FIELD_NUMBER = 1;
private int fixed32_ = 0;
/**
* <code>optional fixed32 fixed32 = 1;</code>
* @return Whether the fixed32 field is set.
*/
@java.lang.Override
public boolean hasFixed32() {
return ((bitField0_ & 0x00000001) != 0);
}
/**
* <code>optional fixed32 fixed32 = 1;</code>
* @return The fixed32.
*/
@java.lang.Override
public int getFixed32() {
return fixed32_;
}
public static final int SFIXED32_FIELD_NUMBER = 2;
private int sfixed32_ = 0;
/**
* <code>optional sfixed32 sfixed32 = 2;</code>
* @return Whether the sfixed32 field is set.
*/
@java.lang.Override
public boolean hasSfixed32() {
return ((bitField0_ & 0x00000002) != 0);
}
/**
* <code>optional sfixed32 sfixed32 = 2;</code>
* @return The sfixed32.
*/
@java.lang.Override
public int getSfixed32() {
return sfixed32_;
}
public static final int INT32_FIELD_NUMBER = 3;
private int int32_ = 0;
/**
* <code>optional int32 int32 = 3;</code>
* @return Whether the int32 field is set.
*/
@java.lang.Override
public boolean hasInt32() {
return ((bitField0_ & 0x00000004) != 0);
}
/**
* <code>optional int32 int32 = 3;</code>
* @return The int32.
*/
@java.lang.Override
public int getInt32() {
return int32_;
}
public static final int UINT32_FIELD_NUMBER = 4;
private int uint32_ = 0;
/**
* <code>optional uint32 uint32 = 4;</code>
* @return Whether the uint32 field is set.
*/
@java.lang.Override
public boolean hasUint32() {
return ((bitField0_ & 0x00000008) != 0);
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/**
* <code>optional uint32 uint32 = 4;</code>
* @return The uint32.
*/
@java.lang.Override
public int getUint32() {
return uint32_;
}
public static final int FIXED64_FIELD_NUMBER = 5;
private long fixed64_ = 0L;
/**
* <code>optional fixed64 fixed64 = 5;</code>
* @return Whether the fixed64 field is set.
*/
@java.lang.Override
public boolean hasFixed64() {
return ((bitField0_ & 0x00000010) != 0);
}
/**
* <code>optional fixed64 fixed64 = 5;</code>
* @return The fixed64.
*/
@java.lang.Override
public long getFixed64() {
return fixed64_;
}
public static final int SFIXED64_FIELD_NUMBER = 6;
private long sfixed64_ = 0L;
/**
* <code>optional sfixed64 sfixed64 = 6;</code>
* @return Whether the sfixed64 field is set.
*/
@java.lang.Override
public boolean hasSfixed64() {
return ((bitField0_ & 0x00000020) != 0);
}
/**
* <code>optional sfixed64 sfixed64 = 6;</code>
* @return The sfixed64.
*/
@java.lang.Override
public long getSfixed64() {
return sfixed64_;
}
public static final int INT64_FIELD_NUMBER = 7;
private long int64_ = 0L;
/**
* <code>optional int64 int64 = 7;</code>
* @return Whether the int64 field is set.
*/
@java.lang.Override
public boolean hasInt64() {
return ((bitField0_ & 0x00000040) != 0);
}
/**
* <code>optional int64 int64 = 7;</code>
* @return The int64.
*/
@java.lang.Override
public long getInt64() {
return int64_;
}
public static final int UINT64_FIELD_NUMBER = 8;
private long uint64_ = 0L;
/**
* <code>optional uint64 uint64 = 8;</code>
* @return Whether the uint64 field is set.
*/
@java.lang.Override
public boolean hasUint64() {
return ((bitField0_ & 0x00000080) != 0);
}
/**
* <code>optional uint64 uint64 = 8;</code>
* @return The uint64.
*/
@java.lang.Override
public long getUint64() {
return uint64_;
}
public static final int FLOAT_FIELD_NUMBER = 9;
private float float_ = 0F;
/**
* <code>optional float float = 9;</code>
* @return Whether the float field is set.
*/
@java.lang.Override
public boolean hasFloat() {
return ((bitField0_ & 0x00000100) != 0);
}
/**
* <code>optional float float = 9;</code>
* @return The float.
*/
@java.lang.Override
public float getFloat() {
return float_;
}
public static final int DOUBLE_FIELD_NUMBER = 10;
private double double_ = 0D;
/**
* <code>optional double double = 10;</code>
* @return Whether the double field is set.
*/
@java.lang.Override
public boolean hasDouble() {
return ((bitField0_ & 0x00000200) != 0);
}
/**
* <code>optional double double = 10;</code>
* @return The double.
*/
@java.lang.Override
public double getDouble() {
return double_;
}
public static final int BOOL_FIELD_NUMBER = 11;
private boolean bool_ = false;
/**
* <code>optional bool bool = 11;</code>
* @return Whether the bool field is set.
*/
@java.lang.Override
public boolean hasBool() {
return ((bitField0_ & 0x00000400) != 0);
}
/**
* <code>optional bool bool = 11;</code>
* @return The bool.
*/
@java.lang.Override
public boolean getBool() {
return bool_;
}
public static final int STRING_FIELD_NUMBER = 12;
@SuppressWarnings("serial")
private volatile java.lang.Object string_ = "";
/**
* <code>optional string string = 12;</code>
* @return Whether the string field is set.
*/
@java.lang.Override
public boolean hasString() {
return ((bitField0_ & 0x00000800) != 0);
}
/**
* <code>optional string string = 12;</code>
* @return The string.
*/
@java.lang.Override
public java.lang.String getString() {
java.lang.Object ref = string_;
if (ref instanceof java.lang.String) {
return (java.lang.String) ref;
} else {
com.google.protobuf.ByteString bs =
(com.google.protobuf.ByteString) ref;
java.lang.String s = bs.toStringUtf8();
if (bs.isValidUtf8()) {
string_ = s;
}
return s;
}
}
/**
* <code>optional string string = 12;</code>
* @return The bytes for string.
*/
@java.lang.Override
public com.google.protobuf.ByteString
getStringBytes() {
java.lang.Object ref = string_;
if (ref instanceof java.lang.String) {
com.google.protobuf.ByteString b =
com.google.protobuf.ByteString.copyFromUtf8(
(java.lang.String) ref);
string_ = b;
return b;
} else {
return (com.google.protobuf.ByteString) ref;
}
}
public static final int BYTES_FIELD_NUMBER = 13;
private com.google.protobuf.ByteString bytes_ = com.google.protobuf.ByteString.EMPTY;
/**
* <code>optional bytes bytes = 13;</code>
* @return Whether the bytes field is set.
*/
@java.lang.Override
public boolean hasBytes() {
return ((bitField0_ & 0x00001000) != 0);
}
/**
* <code>optional bytes bytes = 13;</code>
* @return The bytes.
*/
@java.lang.Override
public com.google.protobuf.ByteString getBytes() {
return bytes_;
}
private byte memoizedIsInitialized = -1;
@java.lang.Override
public final boolean isInitialized() {
byte isInitialized = memoizedIsInitialized;
if (isInitialized == 1) return true;
if (isInitialized == 0) return false;
memoizedIsInitialized = 1;
return true;
}
@java.lang.Override
public void writeTo(com.google.protobuf.CodedOutputStream output)
throws java.io.IOException {
if (((bitField0_ & 0x00000001) != 0)) {
output.writeFixed32(1, fixed32_);
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if (((bitField0_ & 0x00000002) != 0)) {
output.writeSFixed32(2, sfixed32_);
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if (((bitField0_ & 0x00000004) != 0)) {
output.writeInt32(3, int32_);
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if (((bitField0_ & 0x00000008) != 0)) {
output.writeUInt32(4, uint32_);
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if (((bitField0_ & 0x00000010) != 0)) {
output.writeFixed64(5, fixed64_);
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if (((bitField0_ & 0x00000020) != 0)) {
output.writeSFixed64(6, sfixed64_);
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if (((bitField0_ & 0x00000040) != 0)) {
output.writeInt64(7, int64_);
}
if (((bitField0_ & 0x00000080) != 0)) {
output.writeUInt64(8, uint64_);
}
if (((bitField0_ & 0x00000100) != 0)) {
output.writeFloat(9, float_);
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if (((bitField0_ & 0x00000200) != 0)) {
output.writeDouble(10, double_);
}
if (((bitField0_ & 0x00000400) != 0)) {
output.writeBool(11, bool_);
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if (((bitField0_ & 0x00000800) != 0)) {
com.google.protobuf.GeneratedMessageV3.writeString(output, 12, string_);
}
if (((bitField0_ & 0x00001000) != 0)) {
output.writeBytes(13, bytes_);
}
getUnknownFields().writeTo(output);
}
@java.lang.Override
public int getSerializedSize() {
int size = memoizedSize;
if (size != -1) return size;
size = 0;
if (((bitField0_ & 0x00000001) != 0)) {
size += com.google.protobuf.CodedOutputStream
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if (((bitField0_ & 0x00000080) != 0)) {
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if (((bitField0_ & 0x00001000) != 0)) {
size += com.google.protobuf.CodedOutputStream
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size += getUnknownFields().getSerializedSize();
memoizedSize = size;
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@java.lang.Override
public boolean equals(final java.lang.Object obj) {
if (obj == this) {
return true;
}
if (!(obj instanceof it.auties.protobuf.Scalar.ScalarMessage)) {
return super.equals(obj);
}
it.auties.protobuf.Scalar.ScalarMessage other = (it.auties.protobuf.Scalar.ScalarMessage) obj;
if (hasFixed32() != other.hasFixed32()) return false;
if (hasFixed32()) {
if (getFixed32()
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}
if (hasSfixed32() != other.hasSfixed32()) return false;
if (hasSfixed32()) {
if (getSfixed32()
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}
if (hasInt32() != other.hasInt32()) return false;
if (hasInt32()) {
if (getInt32()
!= other.getInt32()) return false;
}
if (hasUint32() != other.hasUint32()) return false;
if (hasUint32()) {
if (getUint32()
!= other.getUint32()) return false;
}
if (hasFixed64() != other.hasFixed64()) return false;
if (hasFixed64()) {
if (getFixed64()
!= other.getFixed64()) return false;
}
if (hasSfixed64() != other.hasSfixed64()) return false;
if (hasSfixed64()) {
if (getSfixed64()
!= other.getSfixed64()) return false;
}
if (hasInt64() != other.hasInt64()) return false;
if (hasInt64()) {
if (getInt64()
!= other.getInt64()) return false;
}
if (hasUint64() != other.hasUint64()) return false;
if (hasUint64()) {
if (getUint64()
!= other.getUint64()) return false;
}
if (hasFloat() != other.hasFloat()) return false;
if (hasFloat()) {
if (java.lang.Float.floatToIntBits(getFloat())
!= java.lang.Float.floatToIntBits(
other.getFloat())) return false;
}
if (hasDouble() != other.hasDouble()) return false;
if (hasDouble()) {
if (java.lang.Double.doubleToLongBits(getDouble())
!= java.lang.Double.doubleToLongBits(
other.getDouble())) return false;
}
if (hasBool() != other.hasBool()) return false;
if (hasBool()) {
if (getBool()
!= other.getBool()) return false;
}
if (hasString() != other.hasString()) return false;
if (hasString()) {
if (!getString()
.equals(other.getString())) return false;
}
if (hasBytes() != other.hasBytes()) return false;
if (hasBytes()) {
if (!getBytes()
.equals(other.getBytes())) return false;
}
if (!getUnknownFields().equals(other.getUnknownFields())) return false;
return true;
}
@java.lang.Override
public int hashCode() {
if (memoizedHashCode != 0) {
return memoizedHashCode;
}
int hash = 41;
hash = (19 * hash) + getDescriptor().hashCode();
if (hasFixed32()) {
hash = (37 * hash) + FIXED32_FIELD_NUMBER;
hash = (53 * hash) + getFixed32();
}
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hash = (37 * hash) + SFIXED32_FIELD_NUMBER;
hash = (53 * hash) + getSfixed32();
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hash = (37 * hash) + INT32_FIELD_NUMBER;
hash = (53 * hash) + getInt32();
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hash = (37 * hash) + UINT32_FIELD_NUMBER;
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hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
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hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
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hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
getUint64());
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if (hasFloat()) {
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hash = (53 * hash) + java.lang.Float.floatToIntBits(
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hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
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hash = (37 * hash) + BOOL_FIELD_NUMBER;
hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(
getBool());
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hash = (37 * hash) + STRING_FIELD_NUMBER;
hash = (53 * hash) + getString().hashCode();
}
if (hasBytes()) {
hash = (37 * hash) + BYTES_FIELD_NUMBER;
hash = (53 * hash) + getBytes().hashCode();
}
hash = (29 * hash) + getUnknownFields().hashCode();
memoizedHashCode = hash;
return hash;
}
public static it.auties.protobuf.Scalar.ScalarMessage parseFrom(
java.nio.ByteBuffer data)
throws com.google.protobuf.InvalidProtocolBufferException {
return PARSER.parseFrom(data);
}
public static it.auties.protobuf.Scalar.ScalarMessage parseFrom(
java.nio.ByteBuffer data,
com.google.protobuf.ExtensionRegistryLite extensionRegistry)
throws com.google.protobuf.InvalidProtocolBufferException {
return PARSER.parseFrom(data, extensionRegistry);
}
public static it.auties.protobuf.Scalar.ScalarMessage parseFrom(
com.google.protobuf.ByteString data)
throws com.google.protobuf.InvalidProtocolBufferException {
return PARSER.parseFrom(data);
}
public static it.auties.protobuf.Scalar.ScalarMessage parseFrom(
com.google.protobuf.ByteString data,
com.google.protobuf.ExtensionRegistryLite extensionRegistry)
throws com.google.protobuf.InvalidProtocolBufferException {
return PARSER.parseFrom(data, extensionRegistry);
}
public static it.auties.protobuf.Scalar.ScalarMessage parseFrom(byte[] data)
throws com.google.protobuf.InvalidProtocolBufferException {
return PARSER.parseFrom(data);
}
public static it.auties.protobuf.Scalar.ScalarMessage parseFrom(
byte[] data,
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// @@protoc_insertion_point(outer_class_scope)
}
Google's Lite Protobuf mutable java class (1318 LOC)
// Generated by the protocol buffer compiler. DO NOT EDIT!
// source: scalar.proto
public final class Scalar {
private Scalar() {}
public static void registerAllExtensions(
com.google.protobuf.ExtensionRegistryLite registry) {
}
public interface ScalarMessageOrBuilder extends
// @@protoc_insertion_point(interface_extends:it.auties.protobuf.ScalarMessage)
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boolean hasFixed32();
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int getFixed32();
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boolean hasInt32();
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int getInt32();
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boolean hasUint32();
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int getUint32();
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long getFixed64();
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boolean hasFloat();
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float getFloat();
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boolean hasDouble();
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double getDouble();
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boolean hasBool();
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boolean getBool();
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bitField0_ |= 0x00000001;
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bitField0_ |= 0x00000002;
sfixed32_ = value;
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bitField0_ |= 0x00000004;
int32_ = value;
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bitField0_ = (bitField0_ & ~0x00000004);
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bitField0_ |= 0x00000010;
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bitField0_ = (bitField0_ & ~0x00000010);
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bitField0_ |= 0x00000020;
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bitField0_ |= 0x00000080;
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bitField0_ = (bitField0_ & ~0x00000080);
uint64_ = 0L;
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bitField0_ |= 0x00000100;
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bitField0_ = (bitField0_ & ~0x00000400);
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/**
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}
/**
* <code>optional int32 int32 = 3;</code>
* @param value The int32 to set.
* @return This builder for chaining.
*/
public Builder setInt32(int value) {
copyOnWrite();
instance.setInt32(value);
return this;
}
/**
* <code>optional int32 int32 = 3;</code>
* @return This builder for chaining.
*/
public Builder clearInt32() {
copyOnWrite();
instance.clearInt32();
return this;
}
/**
* <code>optional uint32 uint32 = 4;</code>
* @return Whether the uint32 field is set.
*/
@java.lang.Override
public boolean hasUint32() {
return instance.hasUint32();
}
/**
* <code>optional uint32 uint32 = 4;</code>
* @return The uint32.
*/
@java.lang.Override
public int getUint32() {
return instance.getUint32();
}
/**
* <code>optional uint32 uint32 = 4;</code>
* @param value The uint32 to set.
* @return This builder for chaining.
*/
public Builder setUint32(int value) {
copyOnWrite();
instance.setUint32(value);
return this;
}
/**
* <code>optional uint32 uint32 = 4;</code>
* @return This builder for chaining.
*/
public Builder clearUint32() {
copyOnWrite();
instance.clearUint32();
return this;
}
/**
* <code>optional fixed64 fixed64 = 5;</code>
* @return Whether the fixed64 field is set.
*/
@java.lang.Override
public boolean hasFixed64() {
return instance.hasFixed64();
}
/**
* <code>optional fixed64 fixed64 = 5;</code>
* @return The fixed64.
*/
@java.lang.Override
public long getFixed64() {
return instance.getFixed64();
}
/**
* <code>optional fixed64 fixed64 = 5;</code>
* @param value The fixed64 to set.
* @return This builder for chaining.
*/
public Builder setFixed64(long value) {
copyOnWrite();
instance.setFixed64(value);
return this;
}
/**
* <code>optional fixed64 fixed64 = 5;</code>
* @return This builder for chaining.
*/
public Builder clearFixed64() {
copyOnWrite();
instance.clearFixed64();
return this;
}
/**
* <code>optional sfixed64 sfixed64 = 6;</code>
* @return Whether the sfixed64 field is set.
*/
@java.lang.Override
public boolean hasSfixed64() {
return instance.hasSfixed64();
}
/**
* <code>optional sfixed64 sfixed64 = 6;</code>
* @return The sfixed64.
*/
@java.lang.Override
public long getSfixed64() {
return instance.getSfixed64();
}
/**
* <code>optional sfixed64 sfixed64 = 6;</code>
* @param value The sfixed64 to set.
* @return This builder for chaining.
*/
public Builder setSfixed64(long value) {
copyOnWrite();
instance.setSfixed64(value);
return this;
}
/**
* <code>optional sfixed64 sfixed64 = 6;</code>
* @return This builder for chaining.
*/
public Builder clearSfixed64() {
copyOnWrite();
instance.clearSfixed64();
return this;
}
/**
* <code>optional int64 int64 = 7;</code>
* @return Whether the int64 field is set.
*/
@java.lang.Override
public boolean hasInt64() {
return instance.hasInt64();
}
/**
* <code>optional int64 int64 = 7;</code>
* @return The int64.
*/
@java.lang.Override
public long getInt64() {
return instance.getInt64();
}
/**
* <code>optional int64 int64 = 7;</code>
* @param value The int64 to set.
* @return This builder for chaining.
*/
public Builder setInt64(long value) {
copyOnWrite();
instance.setInt64(value);
return this;
}
/**
* <code>optional int64 int64 = 7;</code>
* @return This builder for chaining.
*/
public Builder clearInt64() {
copyOnWrite();
instance.clearInt64();
return this;
}
/**
* <code>optional uint64 uint64 = 8;</code>
* @return Whether the uint64 field is set.
*/
@java.lang.Override
public boolean hasUint64() {
return instance.hasUint64();
}
/**
* <code>optional uint64 uint64 = 8;</code>
* @return The uint64.
*/
@java.lang.Override
public long getUint64() {
return instance.getUint64();
}
/**
* <code>optional uint64 uint64 = 8;</code>
* @param value The uint64 to set.
* @return This builder for chaining.
*/
public Builder setUint64(long value) {
copyOnWrite();
instance.setUint64(value);
return this;
}
/**
* <code>optional uint64 uint64 = 8;</code>
* @return This builder for chaining.
*/
public Builder clearUint64() {
copyOnWrite();
instance.clearUint64();
return this;
}
/**
* <code>optional float float = 9;</code>
* @return Whether the float field is set.
*/
@java.lang.Override
public boolean hasFloat() {
return instance.hasFloat();
}
/**
* <code>optional float float = 9;</code>
* @return The float.
*/
@java.lang.Override
public float getFloat() {
return instance.getFloat();
}
/**
* <code>optional float float = 9;</code>
* @param value The float to set.
* @return This builder for chaining.
*/
public Builder setFloat(float value) {
copyOnWrite();
instance.setFloat(value);
return this;
}
/**
* <code>optional float float = 9;</code>
* @return This builder for chaining.
*/
public Builder clearFloat() {
copyOnWrite();
instance.clearFloat();
return this;
}
/**
* <code>optional double double = 10;</code>
* @return Whether the double field is set.
*/
@java.lang.Override
public boolean hasDouble() {
return instance.hasDouble();
}
/**
* <code>optional double double = 10;</code>
* @return The double.
*/
@java.lang.Override
public double getDouble() {
return instance.getDouble();
}
/**
* <code>optional double double = 10;</code>
* @param value The double to set.
* @return This builder for chaining.
*/
public Builder setDouble(double value) {
copyOnWrite();
instance.setDouble(value);
return this;
}
/**
* <code>optional double double = 10;</code>
* @return This builder for chaining.
*/
public Builder clearDouble() {
copyOnWrite();
instance.clearDouble();
return this;
}
/**
* <code>optional bool bool = 11;</code>
* @return Whether the bool field is set.
*/
@java.lang.Override
public boolean hasBool() {
return instance.hasBool();
}
/**
* <code>optional bool bool = 11;</code>
* @return The bool.
*/
@java.lang.Override
public boolean getBool() {
return instance.getBool();
}
/**
* <code>optional bool bool = 11;</code>
* @param value The bool to set.
* @return This builder for chaining.
*/
public Builder setBool(boolean value) {
copyOnWrite();
instance.setBool(value);
return this;
}
/**
* <code>optional bool bool = 11;</code>
* @return This builder for chaining.
*/
public Builder clearBool() {
copyOnWrite();
instance.clearBool();
return this;
}
/**
* <code>optional string string = 12;</code>
* @return Whether the string field is set.
*/
@java.lang.Override
public boolean hasString() {
return instance.hasString();
}
/**
* <code>optional string string = 12;</code>
* @return The string.
*/
@java.lang.Override
public java.lang.String getString() {
return instance.getString();
}
/**
* <code>optional string string = 12;</code>
* @return The bytes for string.
*/
@java.lang.Override
public com.google.protobuf.ByteString
getStringBytes() {
return instance.getStringBytes();
}
/**
* <code>optional string string = 12;</code>
* @param value The string to set.
* @return This builder for chaining.
*/
public Builder setString(
java.lang.String value) {
copyOnWrite();
instance.setString(value);
return this;
}
/**
* <code>optional string string = 12;</code>
* @return This builder for chaining.
*/
public Builder clearString() {
copyOnWrite();
instance.clearString();
return this;
}
/**
* <code>optional string string = 12;</code>
* @param value The bytes for string to set.
* @return This builder for chaining.
*/
public Builder setStringBytes(
com.google.protobuf.ByteString value) {
copyOnWrite();
instance.setStringBytes(value);
return this;
}
/**
* <code>optional bytes bytes = 13;</code>
* @return Whether the bytes field is set.
*/
@java.lang.Override
public boolean hasBytes() {
return instance.hasBytes();
}
/**
* <code>optional bytes bytes = 13;</code>
* @return The bytes.
*/
@java.lang.Override
public com.google.protobuf.ByteString getBytes() {
return instance.getBytes();
}
/**
* <code>optional bytes bytes = 13;</code>
* @param value The bytes to set.
* @return This builder for chaining.
*/
public Builder setBytes(com.google.protobuf.ByteString value) {
copyOnWrite();
instance.setBytes(value);
return this;
}
/**
* <code>optional bytes bytes = 13;</code>
* @return This builder for chaining.
*/
public Builder clearBytes() {
copyOnWrite();
instance.clearBytes();
return this;
}
// @@protoc_insertion_point(builder_scope:it.auties.protobuf.ScalarMessage)
}
@java.lang.Override
@java.lang.SuppressWarnings({"unchecked", "fallthrough"})
protected final java.lang.Object dynamicMethod(
com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,
java.lang.Object arg0, java.lang.Object arg1) {
switch (method) {
case NEW_MUTABLE_INSTANCE: {
return new it.auties.protobuf.Scalar.ScalarMessage();
}
case NEW_BUILDER: {
return new Builder();
}
case BUILD_MESSAGE_INFO: {
java.lang.Object[] objects = new java.lang.Object[] {
"bitField0_",
"fixed32_",
"sfixed32_",
"int32_",
"uint32_",
"fixed64_",
"sfixed64_",
"int64_",
"uint64_",
"float_",
"double_",
"bool_",
"string_",
"bytes_",
};
java.lang.String info =
"\u0001\r\u0000\u0001\u0001\r\r\u0000\u0000\u0000\u0001\u1006\u0000\u0002\u100d\u0001" +
"\u0003\u1004\u0002\u0004\u100b\u0003\u0005\u1005\u0004\u0006\u100e\u0005\u0007\u1002" +
"\u0006\b\u1003\u0007\t\u1001\b\n\u1000\t\u000b\u1007\n\f\u1008\u000b\r\u100a\f";
return newMessageInfo(DEFAULT_INSTANCE, info, objects);
}
// fall through
case GET_DEFAULT_INSTANCE: {
return DEFAULT_INSTANCE;
}
case GET_PARSER: {
com.google.protobuf.Parser<it.auties.protobuf.Scalar.ScalarMessage> parser = PARSER;
if (parser == null) {
synchronized (it.auties.protobuf.Scalar.ScalarMessage.class) {
parser = PARSER;
if (parser == null) {
parser =
new DefaultInstanceBasedParser<it.auties.protobuf.Scalar.ScalarMessage>(
DEFAULT_INSTANCE);
PARSER = parser;
}
}
}
return parser;
}
case GET_MEMOIZED_IS_INITIALIZED: {
return (byte) 1;
}
case SET_MEMOIZED_IS_INITIALIZED: {
return null;
}
}
throw new UnsupportedOperationException();
}
// @@protoc_insertion_point(class_scope:it.auties.protobuf.ScalarMessage)
private static final it.auties.protobuf.Scalar.ScalarMessage DEFAULT_INSTANCE;
static {
ScalarMessage defaultInstance = new ScalarMessage();
// New instances are implicitly immutable so no need to make
// immutable.
DEFAULT_INSTANCE = defaultInstance;
com.google.protobuf.GeneratedMessageLite.registerDefaultInstance(
ScalarMessage.class, defaultInstance);
}
public static it.auties.protobuf.Scalar.ScalarMessage getDefaultInstance() {
return DEFAULT_INSTANCE;
}
private static volatile com.google.protobuf.Parser<ScalarMessage> PARSER;
public static com.google.protobuf.Parser<ScalarMessage> parser() {
return DEFAULT_INSTANCE.getParserForType();
}
}
static {
}
// @@protoc_insertion_point(outer_class_scope)
}
ModernProtobuf's model is 65x times smaller than Google's!
Reading that the schema is so much smaller, you might think that I had to compromise on performance. Let's benchmark how much it takes to deserialize 1000 times a message created from the ScalarMessage.proto example: Here is the source for the test in case you want to run it yourself. Here are the results:
Benchmark Mode Cnt Score Error Units
PerformanceBenchmark.modernProtobuf avgt 5 104.093 ± 0.630 us/op
PerformanceBenchmark.googleProtobuf avgt 5 108.120 ± 0.698 us/op
PerformanceBenchmark.googleLiteProtobuf avgt 5 169.939 ± 0.769 us/op
ModernProtobuf is the fastest
I'm committed to maintain ModernProtobuf's performance, so, if under any edge cases its performance doesn't live up to expectation, I'm happy to work on it.