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/*
* Copyright 2015 The gRPC Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.grpc.testing.integration;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import com.google.protobuf.ByteString;
import io.grpc.CallOptions;
import io.grpc.Channel;
import io.grpc.ClientCall;
import io.grpc.ClientInterceptor;
import io.grpc.Codec;
import io.grpc.CompressorRegistry;
import io.grpc.DecompressorRegistry;
import io.grpc.ForwardingClientCall;
import io.grpc.ForwardingClientCallListener;
import io.grpc.ManagedChannel;
import io.grpc.Metadata;
import io.grpc.MethodDescriptor;
import io.grpc.ServerCall;
import io.grpc.ServerCall.Listener;
import io.grpc.ServerCallHandler;
import io.grpc.ServerInterceptor;
import io.grpc.internal.AbstractServerImplBuilder;
import io.grpc.internal.GrpcUtil;
import io.grpc.netty.NettyChannelBuilder;
import io.grpc.netty.NettyServerBuilder;
import io.grpc.testing.integration.Messages.BoolValue;
import io.grpc.testing.integration.Messages.Payload;
import io.grpc.testing.integration.Messages.SimpleRequest;
import io.grpc.testing.integration.Messages.SimpleResponse;
import java.io.FilterInputStream;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/**
* Tests that compression is turned on.
*/
@RunWith(JUnit4.class)
public class TransportCompressionTest extends AbstractInteropTest {
// Masquerade as identity.
private static final Fzip FZIPPER = new Fzip("gzip", new Codec.Gzip());
private volatile boolean expectFzip;
private static final DecompressorRegistry decompressors = DecompressorRegistry.emptyInstance()
.with(Codec.Identity.NONE, false)
.with(FZIPPER, true);
private static final CompressorRegistry compressors = CompressorRegistry.newEmptyInstance();
@Before
public void beforeTests() {
FZIPPER.anyRead = false;
FZIPPER.anyWritten = false;
}
@BeforeClass
public static void registerCompressors() {
compressors.register(FZIPPER);
compressors.register(Codec.Identity.NONE);
}
@Override
protected AbstractServerImplBuilder<?> getServerBuilder() {
return NettyServerBuilder.forPort(0)
.maxInboundMessageSize(AbstractInteropTest.MAX_MESSAGE_SIZE)
.compressorRegistry(compressors)
.decompressorRegistry(decompressors)
.intercept(new ServerInterceptor() {
@Override
public <ReqT, RespT> Listener<ReqT> interceptCall(ServerCall<ReqT, RespT> call,
Metadata headers, ServerCallHandler<ReqT, RespT> next) {
Listener<ReqT> listener = next.startCall(call, headers);
// TODO(carl-mastrangelo): check that encoding was set.
call.setMessageCompression(true);
return listener;
}
});
}
@Test
public void compresses() {
expectFzip = true;
final SimpleRequest request = SimpleRequest.newBuilder()
.setResponseSize(314159)
.setResponseCompressed(BoolValue.newBuilder().setValue(true))
.setPayload(Payload.newBuilder()
.setBody(ByteString.copyFrom(new byte[271828])))
.build();
final SimpleResponse goldenResponse = SimpleResponse.newBuilder()
.setPayload(Payload.newBuilder()
.setBody(ByteString.copyFrom(new byte[314159])))
.build();
assertEquals(goldenResponse, blockingStub.unaryCall(request));
// Assert that compression took place
assertTrue(FZIPPER.anyRead);
assertTrue(FZIPPER.anyWritten);
}
@Override
protected ManagedChannel createChannel() {
NettyChannelBuilder builder = NettyChannelBuilder.forAddress(getListenAddress())
.maxInboundMessageSize(AbstractInteropTest.MAX_MESSAGE_SIZE)
.decompressorRegistry(decompressors)
.compressorRegistry(compressors)
.intercept(new ClientInterceptor() {
@Override
public <ReqT, RespT> ClientCall<ReqT, RespT> interceptCall(
MethodDescriptor<ReqT, RespT> method, CallOptions callOptions, Channel next) {
final ClientCall<ReqT, RespT> call = next.newCall(method, callOptions);
return new ForwardingClientCall<ReqT, RespT>() {
@Override
protected ClientCall<ReqT, RespT> delegate() {
return call;
}
@Override
public void start(
final ClientCall.Listener<RespT> responseListener, Metadata headers) {
ClientCall.Listener<RespT> listener = new ForwardingClientCallListener<RespT>() {
@Override
protected io.grpc.ClientCall.Listener<RespT> delegate() {
return responseListener;
}
@Override
public void onHeaders(Metadata headers) {
super.onHeaders(headers);
if (expectFzip) {
String encoding = headers.get(GrpcUtil.MESSAGE_ENCODING_KEY);
assertEquals(encoding, FZIPPER.getMessageEncoding());
}
}
};
super.start(listener, headers);
setMessageCompression(true);
}
};
}
})
.usePlaintext();
io.grpc.internal.TestingAccessor.setStatsImplementation(
builder, createClientCensusStatsModule());
return builder.build();
}
/**
* Fzip is a custom compressor.
*/
static class Fzip implements Codec {
volatile boolean anyRead;
volatile boolean anyWritten;
volatile Codec delegate;
private final String actualName;
public Fzip(String actualName, Codec delegate) {
this.actualName = actualName;
this.delegate = delegate;
}
@Override
public String getMessageEncoding() {
return actualName;
}
@Override
public OutputStream compress(OutputStream os) throws IOException {
return new FilterOutputStream(delegate.compress(os)) {
@Override
public void write(int b) throws IOException {
super.write(b);
anyWritten = true;
}
};
}
@Override
public InputStream decompress(InputStream is) throws IOException {
return new FilterInputStream(delegate.decompress(is)) {
@Override
public int read() throws IOException {
int val = super.read();
anyRead = true;
return val;
}
@Override
public int read(byte[] b, int off, int len) throws IOException {
int total = super.read(b, off, len);
anyRead = true;
return total;
}
};
}
}
}
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