// 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.
import com.google.protobuf.AbstractMessage;
import com.google.protobuf.ByteString;
import com.google.protobuf.CodedInputStream;
import com.google.protobuf.ExtensionRegistry;
import com.google.protobuf.InvalidProtocolBufferException;
import com.google.protobuf.Parser;
import com.google.protobuf.TextFormat;
import com.google.protobuf.conformance.Conformance;
import com.google.protobuf.util.JsonFormat;
import com.google.protobuf.util.JsonFormat.TypeRegistry;
import com.google.protobuf_test_messages.proto2.TestMessagesProto2;
import com.google.protobuf_test_messages.proto2.TestMessagesProto2.TestAllTypesProto2;
import com.google.protobuf_test_messages.proto3.TestMessagesProto3;
import com.google.protobuf_test_messages.proto3.TestMessagesProto3.TestAllTypesProto3;
import java.nio.ByteBuffer;
import java.util.ArrayList;
class ConformanceJava {
private int testCount = 0;
private TypeRegistry typeRegistry;
private boolean readFromStdin(byte[] buf, int len) throws Exception {
int ofs = 0;
while (len > 0) {
int read = System.in.read(buf, ofs, len);
if (read == -1) {
return false; // EOF
}
ofs += read;
len -= read;
}
return true;
}
private void writeToStdout(byte[] buf) throws Exception {
System.out.write(buf);
}
// Returns -1 on EOF (the actual values will always be positive).
private int readLittleEndianIntFromStdin() throws Exception {
byte[] buf = new byte[4];
if (!readFromStdin(buf, 4)) {
return -1;
}
return (buf[0] & 0xff)
| ((buf[1] & 0xff) << 8)
| ((buf[2] & 0xff) << 16)
| ((buf[3] & 0xff) << 24);
}
private void writeLittleEndianIntToStdout(int val) throws Exception {
byte[] buf = new byte[4];
buf[0] = (byte) val;
buf[1] = (byte) (val >> 8);
buf[2] = (byte) (val >> 16);
buf[3] = (byte) (val >> 24);
writeToStdout(buf);
}
private enum BinaryDecoderType {
BTYE_STRING_DECODER,
BYTE_ARRAY_DECODER,
ARRAY_BYTE_BUFFER_DECODER,
READONLY_ARRAY_BYTE_BUFFER_DECODER,
DIRECT_BYTE_BUFFER_DECODER,
READONLY_DIRECT_BYTE_BUFFER_DECODER,
INPUT_STREAM_DECODER;
}
private static class BinaryDecoder<T extends AbstractMessage> {
public T decode(
ByteString bytes, BinaryDecoderType type, Parser<T> parser, ExtensionRegistry extensions)
throws InvalidProtocolBufferException {
switch (type) {
case BTYE_STRING_DECODER:
case BYTE_ARRAY_DECODER:
return parser.parseFrom(bytes, extensions);
case ARRAY_BYTE_BUFFER_DECODER:
{
ByteBuffer buffer = ByteBuffer.allocate(bytes.size());
bytes.copyTo(buffer);
buffer.flip();
return parser.parseFrom(CodedInputStream.newInstance(buffer), extensions);
}
case READONLY_ARRAY_BYTE_BUFFER_DECODER:
{
return parser.parseFrom(
CodedInputStream.newInstance(bytes.asReadOnlyByteBuffer()), extensions);
}
case DIRECT_BYTE_BUFFER_DECODER:
{
ByteBuffer buffer = ByteBuffer.allocateDirect(bytes.size());
bytes.copyTo(buffer);
buffer.flip();
return parser.parseFrom(CodedInputStream.newInstance(buffer), extensions);
}
case READONLY_DIRECT_BYTE_BUFFER_DECODER:
{
ByteBuffer buffer = ByteBuffer.allocateDirect(bytes.size());
bytes.copyTo(buffer);
buffer.flip();
return parser.parseFrom(
CodedInputStream.newInstance(buffer.asReadOnlyBuffer()), extensions);
}
case INPUT_STREAM_DECODER:
{
return parser.parseFrom(bytes.newInput(), extensions);
}
}
return null;
}
}
private <T extends AbstractMessage> T parseBinary(
ByteString bytes, Parser<T> parser, ExtensionRegistry extensions)
throws InvalidProtocolBufferException {
ArrayList<T> messages = new ArrayList<>();
ArrayList<InvalidProtocolBufferException> exceptions = new ArrayList<>();
for (int i = 0; i < BinaryDecoderType.values().length; i++) {
messages.add(null);
exceptions.add(null);
}
if (messages.isEmpty()) {
throw new RuntimeException("binary decoder types missing");
}
BinaryDecoder<T> decoder = new BinaryDecoder<>();
boolean hasMessage = false;
boolean hasException = false;
for (int i = 0; i < BinaryDecoderType.values().length; ++i) {
try {
// = BinaryDecoderType.values()[i].parseProto3(bytes);
messages.set(i, decoder.decode(bytes, BinaryDecoderType.values()[i], parser, extensions));
hasMessage = true;
} catch (InvalidProtocolBufferException e) {
exceptions.set(i, e);
hasException = true;
}
}
if (hasMessage && hasException) {
StringBuilder sb =
new StringBuilder("Binary decoders disagreed on whether the payload was valid.\n");
for (int i = 0; i < BinaryDecoderType.values().length; ++i) {
sb.append(BinaryDecoderType.values()[i].name());
if (messages.get(i) != null) {
sb.append(" accepted the payload.\n");
} else {
sb.append(" rejected the payload.\n");
}
}
throw new RuntimeException(sb.toString());
}
if (hasException) {
// We do not check if exceptions are equal. Different implementations may return different
// exception messages. Throw an arbitrary one out instead.
InvalidProtocolBufferException exception = null;
for (InvalidProtocolBufferException e : exceptions) {
if (exception != null) {
exception.addSuppressed(e);
} else {
exception = e;
}
}
throw exception;
}
// Fast path comparing all the messages with the first message, assuming equality being
// symmetric and transitive.
boolean allEqual = true;
for (int i = 1; i < messages.size(); ++i) {
if (!messages.get(0).equals(messages.get(i))) {
allEqual = false;
break;
}
}
// Slow path: compare and find out all unequal pairs.
if (!allEqual) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < messages.size() - 1; ++i) {
for (int j = i + 1; j < messages.size(); ++j) {
if (!messages.get(i).equals(messages.get(j))) {
sb.append(BinaryDecoderType.values()[i].name())
.append(" and ")
.append(BinaryDecoderType.values()[j].name())
.append(" parsed the payload differently.\n");
}
}
}
throw new RuntimeException(sb.toString());
}
return messages.get(0);
}
private Conformance.ConformanceResponse doTest(Conformance.ConformanceRequest request) {
AbstractMessage testMessage;
String messageType = request.getMessageType();
boolean isProto3 =
messageType.equals("protobuf_test_messages.proto3.TestAllTypesProto3");
boolean isProto2 =
messageType.equals("protobuf_test_messages.proto2.TestAllTypesProto2");
switch (request.getPayloadCase()) {
case PROTOBUF_PAYLOAD:
{
if (isProto3) {
try {
ExtensionRegistry extensions = ExtensionRegistry.newInstance();
TestMessagesProto3.registerAllExtensions(extensions);
testMessage =
parseBinary(
request.getProtobufPayload(), TestAllTypesProto3.parser(), extensions);
} catch (InvalidProtocolBufferException e) {
return Conformance.ConformanceResponse.newBuilder()
.setParseError(e.getMessage())
.build();
}
} else if (isProto2) {
try {
ExtensionRegistry extensions = ExtensionRegistry.newInstance();
TestMessagesProto2.registerAllExtensions(extensions);
testMessage =
parseBinary(
request.getProtobufPayload(), TestAllTypesProto2.parser(), extensions);
} catch (InvalidProtocolBufferException e) {
return Conformance.ConformanceResponse.newBuilder()
.setParseError(e.getMessage())
.build();
}
} else {
throw new IllegalArgumentException(
"Protobuf request has unexpected payload type: " + messageType);
}
break;
}
case JSON_PAYLOAD:
{
try {
JsonFormat.Parser parser = JsonFormat.parser().usingTypeRegistry(typeRegistry);
if (request.getTestCategory()
== Conformance.TestCategory.JSON_IGNORE_UNKNOWN_PARSING_TEST) {
parser = parser.ignoringUnknownFields();
}
if (isProto3) {
TestMessagesProto3.TestAllTypesProto3.Builder builder =
TestMessagesProto3.TestAllTypesProto3.newBuilder();
parser.merge(request.getJsonPayload(), builder);
testMessage = builder.build();
} else if (isProto2) {
TestMessagesProto2.TestAllTypesProto2.Builder builder =
TestMessagesProto2.TestAllTypesProto2.newBuilder();
parser.merge(request.getJsonPayload(), builder);
testMessage = builder.build();
} else {
throw new IllegalArgumentException(
"Protobuf request has unexpected payload type: " + messageType);
}
} catch (InvalidProtocolBufferException e) {
return Conformance.ConformanceResponse.newBuilder()
.setParseError(e.getMessage())
.build();
}
break;
}
case TEXT_PAYLOAD:
{
if (isProto3) {
try {
TestMessagesProto3.TestAllTypesProto3.Builder builder =
TestMessagesProto3.TestAllTypesProto3.newBuilder();
TextFormat.merge(request.getTextPayload(), builder);
testMessage = builder.build();
} catch (TextFormat.ParseException e) {
return Conformance.ConformanceResponse.newBuilder()
.setParseError(e.getMessage())
.build();
}
} else if (isProto2) {
try {
TestMessagesProto2.TestAllTypesProto2.Builder builder =
TestMessagesProto2.TestAllTypesProto2.newBuilder();
TextFormat.merge(request.getTextPayload(), builder);
testMessage = builder.build();
} catch (TextFormat.ParseException e) {
return Conformance.ConformanceResponse.newBuilder()
.setParseError(e.getMessage())
.build();
}
} else {
throw new IllegalArgumentException(
"Protobuf request has unexpected payload type: " + messageType);
}
break;
}
case PAYLOAD_NOT_SET:
{
throw new IllegalArgumentException("Request didn't have payload.");
}
default:
{
throw new IllegalArgumentException("Unexpected payload case.");
}
}
switch (request.getRequestedOutputFormat()) {
case UNSPECIFIED:
throw new IllegalArgumentException("Unspecified output format.");
case PROTOBUF:
{
ByteString messageString = testMessage.toByteString();
return Conformance.ConformanceResponse.newBuilder()
.setProtobufPayload(messageString)
.build();
}
case JSON:
try {
return Conformance.ConformanceResponse.newBuilder()
.setJsonPayload(
JsonFormat.printer().usingTypeRegistry(typeRegistry).print(testMessage))
.build();
} catch (InvalidProtocolBufferException | IllegalArgumentException e) {
return Conformance.ConformanceResponse.newBuilder()
.setSerializeError(e.getMessage())
.build();
}
case TEXT_FORMAT:
return Conformance.ConformanceResponse.newBuilder()
.setTextPayload(TextFormat.printer().printToString(testMessage))
.build();
default:
{
throw new IllegalArgumentException("Unexpected request output.");
}
}
}
private boolean doTestIo() throws Exception {
int bytes = readLittleEndianIntFromStdin();
if (bytes == -1) {
return false; // EOF
}
byte[] serializedInput = new byte[bytes];
if (!readFromStdin(serializedInput, bytes)) {
throw new RuntimeException("Unexpected EOF from test program.");
}
Conformance.ConformanceRequest request =
Conformance.ConformanceRequest.parseFrom(serializedInput);
Conformance.ConformanceResponse response = doTest(request);
byte[] serializedOutput = response.toByteArray();
writeLittleEndianIntToStdout(serializedOutput.length);
writeToStdout(serializedOutput);
return true;
}
public void run() throws Exception {
typeRegistry =
TypeRegistry.newBuilder()
.add(TestMessagesProto3.TestAllTypesProto3.getDescriptor())
.build();
while (doTestIo()) {
this.testCount++;
}
System.err.println(
"ConformanceJava: received EOF from test runner after " + this.testCount + " tests");
}
public static void main(String[] args) throws Exception {
new ConformanceJava().run();
}
}
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