gaoyunhaii commented on a change in pull request #7368: [FLINK-10742][network] Let Netty use Flink's buffers directly in credit-based mode URL: https://github.com/apache/flink/pull/7368#discussion_r388741245
########## File path: flink-runtime/src/test/java/org/apache/flink/runtime/io/network/netty/NettyMessageClientDecoderDelegateTest.java ########## @@ -0,0 +1,369 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 org.apache.flink.runtime.io.network.netty; + +import org.apache.flink.core.memory.MemorySegment; +import org.apache.flink.core.memory.MemorySegmentFactory; +import org.apache.flink.runtime.io.network.buffer.Buffer; +import org.apache.flink.runtime.io.network.buffer.FreeingBufferRecycler; +import org.apache.flink.runtime.io.network.buffer.NetworkBuffer; +import org.apache.flink.runtime.io.network.partition.consumer.BufferProviderRemoteInputChannel; +import org.apache.flink.runtime.io.network.partition.consumer.InputChannelID; +import org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel; +import org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate; +import org.apache.flink.shaded.netty4.io.netty.buffer.ByteBuf; +import org.apache.flink.shaded.netty4.io.netty.channel.embedded.EmbeddedChannel; +import org.junit.Test; + +import java.util.ArrayList; +import java.util.List; + +import static junit.framework.TestCase.assertEquals; +import static junit.framework.TestCase.assertTrue; +import static org.apache.flink.runtime.io.network.netty.NettyMessage.BufferResponse; +import static org.apache.flink.runtime.io.network.netty.NettyMessage.ErrorResponse; +import static org.apache.flink.runtime.io.network.netty.NettyTestUtil.verifyBufferResponseHeader; +import static org.apache.flink.runtime.io.network.netty.NettyTestUtil.verifyErrorResponse; +import static org.apache.flink.runtime.io.network.partition.InputChannelTestUtils.createSingleInputGate; +import static org.junit.Assert.assertNull; +import static org.junit.Assert.fail; + +/** + * Tests the client side message decoder. + */ +public class NettyMessageClientDecoderDelegateTest { + + private static final int BUFFER_SIZE = 1024; + + private static final NettyBufferPool ALLOCATOR = new NettyBufferPool(1); + + /** + * Verifies that the client side decoder works well for unreleased input channels. + */ + @Test + public void testDownstreamMessageDecode() throws Exception { + int totalBufferRequired = 3; + + SingleInputGate inputGate = createSingleInputGate(1); + RemoteInputChannel normalInputChannel = new BufferProviderRemoteInputChannel(inputGate, totalBufferRequired, BUFFER_SIZE); + + CreditBasedPartitionRequestClientHandler handler = new CreditBasedPartitionRequestClientHandler(); + handler.addInputChannel(normalInputChannel); + + EmbeddedChannel channel = new EmbeddedChannel(new NettyMessageClientDecoderDelegate(handler)); + + testRepartitionMessagesAndDecode( + channel, + false, + false, + false, + normalInputChannel.getInputChannelId(), + null); + } + + /** + * Verifies that the client side decoder works well for empty buffers. Empty buffers should not + * consume data buffers of the input channels. + */ + @Test + public void testDownstreamMessageDecodeWithEmptyBuffers() throws Exception { + int totalBufferRequired = 3; + + SingleInputGate inputGate = createSingleInputGate(1); + RemoteInputChannel normalInputChannel = new BufferProviderRemoteInputChannel(inputGate, totalBufferRequired, BUFFER_SIZE); + + CreditBasedPartitionRequestClientHandler handler = new CreditBasedPartitionRequestClientHandler(); + handler.addInputChannel(normalInputChannel); + + EmbeddedChannel channel = new EmbeddedChannel(new NettyMessageClientDecoderDelegate(handler)); + + testRepartitionMessagesAndDecode( + channel, + true, + false, + false, + normalInputChannel.getInputChannelId(), + null); + } + + /** + * Verifies that NettyMessageDecoder works well with buffers sent to a released input channel. The data buffer + * part should be discarded before reading the next message. + */ + @Test + public void testDownstreamMessageDecodeWithReleasedInputChannel() throws Exception { + int totalBufferRequired = 3; + + SingleInputGate normalInputGate = createSingleInputGate(1); + RemoteInputChannel normalInputChannel = new BufferProviderRemoteInputChannel(normalInputGate, totalBufferRequired, BUFFER_SIZE); + + SingleInputGate releasedInputGate = createSingleInputGate(1); + RemoteInputChannel releasedInputChannel = new BufferProviderRemoteInputChannel(releasedInputGate, 0, BUFFER_SIZE); + releasedInputGate.close(); + + CreditBasedPartitionRequestClientHandler handler = new CreditBasedPartitionRequestClientHandler(); + handler.addInputChannel(normalInputChannel); + handler.addInputChannel(releasedInputChannel); + + EmbeddedChannel channel = new EmbeddedChannel(new NettyMessageClientDecoderDelegate(handler)); + + testRepartitionMessagesAndDecode( + channel, + false, + true, + false, + normalInputChannel.getInputChannelId(), + releasedInputChannel.getInputChannelId()); + } + + /** + * Verifies that NettyMessageDecoder works well with buffers sent to a removed input channel. The data buffer + * part should be discarded before reading the next message. + */ + @Test + public void testDownstreamMessageDecodeWithRemovedInputChannel() throws Exception { + int totalBufferRequired = 3; + + SingleInputGate normalInputGate = createSingleInputGate(1); + RemoteInputChannel normalInputChannel = new BufferProviderRemoteInputChannel(normalInputGate, totalBufferRequired, BUFFER_SIZE); + + CreditBasedPartitionRequestClientHandler handler = new CreditBasedPartitionRequestClientHandler(); + handler.addInputChannel(normalInputChannel); + + EmbeddedChannel channel = new EmbeddedChannel(new NettyMessageClientDecoderDelegate(handler)); + + testRepartitionMessagesAndDecode( + channel, + false, + false, + true, + normalInputChannel.getInputChannelId(), + null); + } + + //------------------------------------------------------------------------------------------------------------------ + + private void testRepartitionMessagesAndDecode( + EmbeddedChannel channel, + boolean hasEmptyBuffer, + boolean hasBufferForReleasedChannel, + boolean hasBufferForRemovedChannel, + InputChannelID normalInputChannelId, + InputChannelID releasedInputChannelId) throws Exception { + + List<NettyMessage> messages = createMessageList( + hasEmptyBuffer, + hasBufferForReleasedChannel, + hasBufferForRemovedChannel, + normalInputChannelId, + releasedInputChannelId); + + ByteBuf[] serializedBuffers = null; + ByteBuf mergedBuffer = null; + + try { + serializedBuffers = serializeMessages(messages); Review comment: Renamed the method and related variables, also rename `decodedMessages` to `decodeMessages` ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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