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* 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
* .
*
*/
package org.apache.hc.core5.http2.impl.nio.entity;
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.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import org.apache.hc.core5.http.Header;
import org.apache.hc.core5.http.impl.nio.entity.SharedOutputBuffer;
import org.apache.hc.core5.http.nio.DataStreamChannel;
import org.apache.hc.core5.http2.WritableByteChannelMock;
import org.junit.Assert;
import org.junit.Test;
import org.mockito.Mockito;
public class TestSharedOutputBuffer {
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 task1 = executorService.submit(new Callable() {
@Override
public Boolean call() throws Exception {
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 task2 = executorService.submit(new Callable() {
@Override
public Boolean call() throws Exception {
for (;;) {
outputBuffer.flush(dataStreamChannel);
if (outputBuffer.isEndStream()) {
break;
}
if (!outputBuffer.hasData()) {
dataStreamChannel.awaitOutputRequest();
}
}
return Boolean.TRUE;
}
});
Assert.assertEquals(Boolean.TRUE, task1.get(5, TimeUnit.SECONDS));
Assert.assertEquals(Boolean.TRUE, task2.get(5, TimeUnit.SECONDS));
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 task1 = executorService.submit(new Callable() {
@Override
public Boolean call() throws Exception {
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 task2 = executorService.submit(new Callable() {
@Override
public Boolean call() throws Exception {
Thread.sleep(200);
outputBuffer.abort();
return Boolean.TRUE;
}
});
Assert.assertEquals(Boolean.TRUE, task2.get(5, TimeUnit.SECONDS));
try {
task1.get(5, TimeUnit.SECONDS);
} catch (ExecutionException ex) {
Assert.assertTrue(ex.getCause() instanceof InterruptedIOException);
}
}
}