/*
* 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.activemq.artemis.tests.unit.core.journal.impl;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;
import org.apache.activemq.artemis.api.core.ActiveMQBuffer;
import org.apache.activemq.artemis.api.core.ActiveMQBuffers;
import org.apache.activemq.artemis.core.io.IOCallback;
import org.apache.activemq.artemis.core.io.buffer.TimedBuffer;
import org.apache.activemq.artemis.core.io.buffer.TimedBufferObserver;
import org.apache.activemq.artemis.tests.util.ActiveMQTestBase;
import org.junit.Assert;
import org.junit.Test;
public class TimedBufferTest extends ActiveMQTestBase {
// Constants -----------------------------------------------------
// Attributes ----------------------------------------------------
private static final int ONE_SECOND_IN_NANOS = 1000000000; // in nanoseconds
// Static --------------------------------------------------------
// Constructors --------------------------------------------------
// Public --------------------------------------------------------
IOCallback dummyCallback = new IOCallback() {
@Override
public void done() {
}
@Override
public void onError(final int errorCode, final String errorMessage) {
}
};
@Test
public void testFillBuffer() {
final ArrayList<ByteBuffer> buffers = new ArrayList<>();
final AtomicInteger flushTimes = new AtomicInteger(0);
class TestObserver implements TimedBufferObserver {
@Override
public void flushBuffer(final ByteBuffer buffer, final boolean sync, final List<IOCallback> callbacks) {
buffers.add(buffer);
flushTimes.incrementAndGet();
}
/* (non-Javadoc)
* @see org.apache.activemq.artemis.utils.timedbuffer.TimedBufferObserver#newBuffer(int, int)
*/
@Override
public ByteBuffer newBuffer(final int minSize, final int maxSize) {
return ByteBuffer.allocate(maxSize);
}
@Override
public int getRemainingBytes() {
return 1024 * 1024;
}
}
TimedBuffer timedBuffer = new TimedBuffer(100, TimedBufferTest.ONE_SECOND_IN_NANOS, false);
timedBuffer.start();
try {
timedBuffer.setObserver(new TestObserver());
int x = 0;
for (int i = 0; i < 10; i++) {
byte[] bytes = new byte[10];
for (int j = 0; j < 10; j++) {
bytes[j] = ActiveMQTestBase.getSamplebyte(x++);
}
ActiveMQBuffer buff = ActiveMQBuffers.wrappedBuffer(bytes);
timedBuffer.checkSize(10);
timedBuffer.addBytes(buff, false, dummyCallback);
}
timedBuffer.checkSize(1);
Assert.assertEquals(1, flushTimes.get());
ByteBuffer flushedBuffer = buffers.get(0);
Assert.assertEquals(100, flushedBuffer.limit());
Assert.assertEquals(100, flushedBuffer.capacity());
flushedBuffer.rewind();
for (int i = 0; i < 100; i++) {
Assert.assertEquals(ActiveMQTestBase.getSamplebyte(i), flushedBuffer.get());
}
} finally {
timedBuffer.stop();
}
}
@Test
public void testTimingAndFlush() throws Exception {
final ArrayList<ByteBuffer> buffers = new ArrayList<>();
final AtomicInteger flushTimes = new AtomicInteger(0);
class TestObserver implements TimedBufferObserver {
@Override
public void flushBuffer(final ByteBuffer buffer, final boolean sync, final List<IOCallback> callbacks) {
buffers.add(buffer);
flushTimes.incrementAndGet();
}
/* (non-Javadoc)
* @see org.apache.activemq.artemis.utils.timedbuffer.TimedBufferObserver#newBuffer(int, int)
*/
@Override
public ByteBuffer newBuffer(final int minSize, final int maxSize) {
return ByteBuffer.allocate(maxSize);
}
@Override
public int getRemainingBytes() {
return 1024 * 1024;
}
}
TimedBuffer timedBuffer = new TimedBuffer(100, TimedBufferTest.ONE_SECOND_IN_NANOS / 10, false);
timedBuffer.start();
try {
timedBuffer.setObserver(new TestObserver());
int x = 0;
byte[] bytes = new byte[10];
for (int j = 0; j < 10; j++) {
bytes[j] = ActiveMQTestBase.getSamplebyte(x++);
}
ActiveMQBuffer buff = ActiveMQBuffers.wrappedBuffer(bytes);
timedBuffer.checkSize(10);
timedBuffer.addBytes(buff, false, dummyCallback);
Thread.sleep(200);
Assert.assertEquals(0, flushTimes.get());
bytes = new byte[10];
for (int j = 0; j < 10; j++) {
bytes[j] = ActiveMQTestBase.getSamplebyte(x++);
}
buff = ActiveMQBuffers.wrappedBuffer(bytes);
timedBuffer.checkSize(10);
timedBuffer.addBytes(buff, true, dummyCallback);
Thread.sleep(500);
Assert.assertEquals(1, flushTimes.get());
ByteBuffer flushedBuffer = buffers.get(0);
Assert.assertEquals(20, flushedBuffer.limit());
Assert.assertEquals(20, flushedBuffer.capacity());
flushedBuffer.rewind();
for (int i = 0; i < 20; i++) {
Assert.assertEquals(ActiveMQTestBase.getSamplebyte(i), flushedBuffer.get());
}
} finally {
timedBuffer.stop();
}
}
}