| /* |
| * 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.kafka.common.record; |
| |
| import org.apache.kafka.common.network.ByteBufferSend; |
| import org.apache.kafka.common.network.Send; |
| import org.apache.kafka.test.TestUtils; |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.LinkedList; |
| import java.util.Queue; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| public class MultiRecordsSendTest { |
| |
| @Test |
| public void testSendsFreedAfterWriting() throws IOException { |
| String dest = "1"; |
| int numChunks = 4; |
| int chunkSize = 32; |
| int totalSize = numChunks * chunkSize; |
| |
| Queue<Send> sends = new LinkedList<>(); |
| ByteBuffer[] chunks = new ByteBuffer[numChunks]; |
| |
| for (int i = 0; i < numChunks; i++) { |
| ByteBuffer buffer = ByteBuffer.wrap(TestUtils.randomBytes(chunkSize)); |
| chunks[i] = buffer; |
| sends.add(new ByteBufferSend(dest, buffer)); |
| } |
| |
| MultiRecordsSend send = new MultiRecordsSend(dest, sends); |
| assertEquals(totalSize, send.size()); |
| |
| for (int i = 0; i < numChunks; i++) { |
| assertEquals(numChunks - i, send.numResidentSends()); |
| NonOverflowingByteBufferChannel out = new NonOverflowingByteBufferChannel(chunkSize); |
| send.writeTo(out); |
| out.close(); |
| assertEquals(chunks[i], out.buffer()); |
| } |
| |
| assertEquals(0, send.numResidentSends()); |
| assertTrue(send.completed()); |
| } |
| |
| private static class NonOverflowingByteBufferChannel extends org.apache.kafka.common.requests.ByteBufferChannel { |
| |
| private NonOverflowingByteBufferChannel(long size) { |
| super(size); |
| } |
| |
| @Override |
| public long write(ByteBuffer[] srcs) throws IOException { |
| // Instead of overflowing, this channel refuses additional writes once the buffer is full, |
| // which allows us to test the MultiRecordsSend behavior on a per-send basis. |
| if (!buffer().hasRemaining()) |
| return 0; |
| return super.write(srcs); |
| } |
| } |
| |
| } |