| /* |
| * ==================================================================== |
| * 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| |
| package org.apache.hc.core5.http.nio.support.classic; |
| |
| import java.io.IOException; |
| import java.io.InterruptedIOException; |
| import java.nio.ByteBuffer; |
| import java.nio.charset.Charset; |
| import java.nio.charset.StandardCharsets; |
| import java.util.List; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.Future; |
| |
| import org.apache.hc.core5.http.Header; |
| import org.apache.hc.core5.http.WritableByteChannelMock; |
| import org.apache.hc.core5.http.nio.DataStreamChannel; |
| import org.apache.hc.core5.util.Timeout; |
| import org.junit.Assert; |
| import org.junit.Test; |
| import org.mockito.Mockito; |
| |
| public class TestSharedOutputBuffer { |
| |
| private static final Timeout TIMEOUT = Timeout.ofSeconds(30); |
| |
| static class DataStreamChannelMock implements DataStreamChannel { |
| |
| private final WritableByteChannelMock channel; |
| |
| DataStreamChannelMock(final WritableByteChannelMock channel) { |
| this.channel = channel; |
| } |
| |
| @Override |
| public synchronized int write(final ByteBuffer src) throws IOException { |
| return channel.write(src); |
| } |
| |
| @Override |
| public synchronized void requestOutput() { |
| notifyAll(); |
| } |
| |
| @Override |
| public synchronized void endStream(final List<? extends Header> trailers) throws IOException { |
| channel.close(); |
| notifyAll(); |
| } |
| |
| @Override |
| public void endStream() throws IOException { |
| endStream(null); |
| } |
| |
| public synchronized void awaitOutputRequest() throws InterruptedException { |
| wait(); |
| } |
| |
| } |
| |
| @Test |
| public void testBasis() throws Exception { |
| |
| final Charset charset = StandardCharsets.US_ASCII; |
| final SharedOutputBuffer outputBuffer = new SharedOutputBuffer(30); |
| |
| final WritableByteChannelMock channel = new WritableByteChannelMock(1024); |
| final DataStreamChannel dataStreamChannel = Mockito.spy(new DataStreamChannelMock(channel)); |
| outputBuffer.flush(dataStreamChannel); |
| |
| Mockito.verifyZeroInteractions(dataStreamChannel); |
| |
| Assert.assertEquals(0, outputBuffer.length()); |
| Assert.assertEquals(30, outputBuffer.capacity()); |
| |
| final byte[] tmp = "1234567890".getBytes(charset); |
| outputBuffer.write(tmp, 0, tmp.length); |
| outputBuffer.write(tmp, 0, tmp.length); |
| outputBuffer.write('1'); |
| outputBuffer.write('2'); |
| |
| Assert.assertEquals(22, outputBuffer.length()); |
| Assert.assertEquals(8, outputBuffer.capacity()); |
| |
| Mockito.verifyZeroInteractions(dataStreamChannel); |
| } |
| |
| @Test |
| public void testFlush() throws Exception { |
| |
| final Charset charset = StandardCharsets.US_ASCII; |
| final SharedOutputBuffer outputBuffer = new SharedOutputBuffer(30); |
| |
| final WritableByteChannelMock channel = new WritableByteChannelMock(1024); |
| final DataStreamChannel dataStreamChannel = new DataStreamChannelMock(channel); |
| outputBuffer.flush(dataStreamChannel); |
| |
| Assert.assertEquals(0, outputBuffer.length()); |
| Assert.assertEquals(30, outputBuffer.capacity()); |
| |
| final byte[] tmp = "1234567890".getBytes(charset); |
| outputBuffer.write(tmp, 0, tmp.length); |
| outputBuffer.write(tmp, 0, tmp.length); |
| outputBuffer.write('1'); |
| outputBuffer.write('2'); |
| |
| outputBuffer.flush(dataStreamChannel); |
| |
| Assert.assertEquals(0, outputBuffer.length()); |
| Assert.assertEquals(30, outputBuffer.capacity()); |
| } |
| |
| @Test |
| public void testMultithreadingWriteStream() throws Exception { |
| |
| final Charset charset = StandardCharsets.US_ASCII; |
| final SharedOutputBuffer outputBuffer = new SharedOutputBuffer(20); |
| |
| final WritableByteChannelMock channel = new WritableByteChannelMock(1024); |
| final DataStreamChannelMock dataStreamChannel = new DataStreamChannelMock(channel); |
| |
| final ExecutorService executorService = Executors.newFixedThreadPool(2); |
| final Future<Boolean> task1 = executorService.submit(() -> { |
| final byte[] tmp = "1234567890".getBytes(charset); |
| outputBuffer.write(tmp, 0, tmp.length); |
| outputBuffer.write(tmp, 0, tmp.length); |
| outputBuffer.write('1'); |
| outputBuffer.write('2'); |
| outputBuffer.write(tmp, 0, tmp.length); |
| outputBuffer.write(tmp, 0, tmp.length); |
| outputBuffer.write(tmp, 0, tmp.length); |
| outputBuffer.writeCompleted(); |
| outputBuffer.writeCompleted(); |
| return Boolean.TRUE; |
| }); |
| final Future<Boolean> task2 = executorService.submit(() -> { |
| for (;;) { |
| outputBuffer.flush(dataStreamChannel); |
| if (outputBuffer.isEndStream()) { |
| break; |
| } |
| if (!outputBuffer.hasData()) { |
| dataStreamChannel.awaitOutputRequest(); |
| } |
| } |
| return Boolean.TRUE; |
| }); |
| |
| Assert.assertEquals(Boolean.TRUE, task1.get(TIMEOUT.getDuration(), TIMEOUT.getTimeUnit())); |
| Assert.assertEquals(Boolean.TRUE, task2.get(TIMEOUT.getDuration(), TIMEOUT.getTimeUnit())); |
| |
| Assert.assertEquals("1234567890123456789012123456789012345678901234567890", new String(channel.toByteArray(), charset)); |
| } |
| |
| @Test |
| public void testMultithreadingWriteStreamAbort() throws Exception { |
| |
| final Charset charset = StandardCharsets.US_ASCII; |
| final SharedOutputBuffer outputBuffer = new SharedOutputBuffer(20); |
| |
| final ExecutorService executorService = Executors.newFixedThreadPool(2); |
| final Future<Boolean> task1 = executorService.submit(() -> { |
| final byte[] tmp = "1234567890".getBytes(charset); |
| for (int i = 0; i < 20; i++) { |
| outputBuffer.write(tmp, 0, tmp.length); |
| } |
| outputBuffer.writeCompleted(); |
| return Boolean.TRUE; |
| }); |
| final Future<Boolean> task2 = executorService.submit(() -> { |
| Thread.sleep(200); |
| outputBuffer.abort(); |
| return Boolean.TRUE; |
| }); |
| |
| Assert.assertEquals(Boolean.TRUE, task2.get(TIMEOUT.getDuration(), TIMEOUT.getTimeUnit())); |
| try { |
| task1.get(TIMEOUT.getDuration(), TIMEOUT.getTimeUnit()); |
| } catch (final ExecutionException ex) { |
| Assert.assertTrue(ex.getCause() instanceof InterruptedIOException); |
| } |
| } |
| |
| @Test |
| public void testEndStreamOnlyCalledOnce() throws IOException { |
| |
| final DataStreamChannel channel = Mockito.mock(DataStreamChannel.class); |
| final SharedOutputBuffer outputBuffer = new SharedOutputBuffer(20); |
| |
| outputBuffer.flush(channel); |
| |
| outputBuffer.writeCompleted(); |
| outputBuffer.flush(channel); |
| |
| Mockito.verify(channel, Mockito.times(1)).endStream(); |
| } |
| |
| } |
| |