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BAEL-519 Disruptor in its own module. (#1017)

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* BAL-36 File size api in java and apache commons IO

* BAEL-282 grep in java - fixes after code review

* BAEL-519 Added support for disruptor library

* BAEL-519 Added support for disruptor library

* BAEL-519 Added support for disruptor library

* BAEL-519 Added support for disruptor library

* BAEL-519 Added support for disruptor library

* BAEL-519 Added support for disruptor library

* BAEL-519 Added support for disruptor

* BAEL-519 Moved all supporting classes to main source

* BAEL-519 Moved all supporting classes to main source

* BAEL-519 Moved asserts and test classes in test folder.

* BAEL-519 moved test related producer and consumer to src.

* BAEL-586 Guide to Guava BiMap.

* BAEL-587 formatted code.

* BAEL-519 LMAX Disruptor

* BAEL-587 resolved merge

* BAEL-587 Resolved merge

* BAEL-519 Removed disruptor link.

* BAEL-519 Reverted Guava changes

* RFQ-587 Added disruptor as a separate module.

* BAEL-519 Disruptor changes.

* BAEL-519 Removed disruptor from core-java module.
This commit is contained in:
Muhammed Almas
2017-01-21 18:21:04 +05:30
committed by Eugen
parent 60f5dd0938
commit f7236b301b
14 changed files with 252 additions and 6 deletions
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83
core-java/src/test/java/com/baeldung/disruptor/DisruptorTest.java
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@@ -1,83 +0,0 @@
package com.baeldung.disruptor;
import java.util.concurrent.ThreadFactory;
import org.junit.Before;
import org.junit.Test;
import com.lmax.disruptor.BusySpinWaitStrategy;
import com.lmax.disruptor.RingBuffer;
import com.lmax.disruptor.WaitStrategy;
import com.lmax.disruptor.dsl.Disruptor;
import com.lmax.disruptor.dsl.ProducerType;
import com.lmax.disruptor.util.DaemonThreadFactory;
public class DisruptorTest {
private Disruptor<ValueEvent> disruptor;
private WaitStrategy waitStrategy;
@Before
public void setUp() throws Exception {
waitStrategy = new BusySpinWaitStrategy();
}
private void createDisruptor(final ProducerType producerType, final EventConsumer eventConsumer) {
final ThreadFactory threadFactory = DaemonThreadFactory.INSTANCE;
disruptor = new Disruptor<ValueEvent>(ValueEvent.EVENT_FACTORY, 16, threadFactory, producerType, waitStrategy);
disruptor.handleEventsWith(eventConsumer.getEventHandler());
}
private void startProducing(final RingBuffer<ValueEvent> ringBuffer, final int count, final EventProducer eventProducer) {
eventProducer.startProducing(ringBuffer, count);
}
@Test
public void whenMultipleProducerSingleConsumer_thenOutputInFifoOrder() {
final EventConsumer eventConsumer = new SingleEventPrintConsumer();
final EventProducer eventProducer = new DelayedMultiEventProducer();
createDisruptor(ProducerType.MULTI, eventConsumer);
final RingBuffer<ValueEvent> ringBuffer = disruptor.start();
startProducing(ringBuffer, 32, eventProducer);
disruptor.halt();
disruptor.shutdown();
}
@Test
public void whenSingleProducerSingleConsumer_thenOutputInFifoOrder() {
final EventConsumer eventConsumer = new SingleEventConsumer();
final EventProducer eventProducer = new SingleEventProducer();
createDisruptor(ProducerType.SINGLE, eventConsumer);
final RingBuffer<ValueEvent> ringBuffer = disruptor.start();
startProducing(ringBuffer, 32, eventProducer);
disruptor.halt();
disruptor.shutdown();
}
@Test
public void whenSingleProducerMultipleConsumer_thenOutputInFifoOrder() {
final EventConsumer eventConsumer = new MultiEventConsumer();
final EventProducer eventProducer = new SingleEventProducer();
createDisruptor(ProducerType.SINGLE, eventConsumer);
final RingBuffer<ValueEvent> ringBuffer = disruptor.start();
startProducing(ringBuffer, 32, eventProducer);
disruptor.halt();
disruptor.shutdown();
}
@Test
public void whenMultipleProducerMultipleConsumer_thenOutputInFifoOrder() {
final EventConsumer eventConsumer = new MultiEventPrintConsumer();
final EventProducer eventProducer = new DelayedMultiEventProducer();
createDisruptor(ProducerType.MULTI, eventConsumer);
final RingBuffer<ValueEvent> ringBuffer = disruptor.start();
startProducing(ringBuffer, 32, eventProducer);
disruptor.halt();
disruptor.shutdown();
}
}

27
core-java/src/test/java/com/baeldung/disruptor/MultiEventConsumer.java
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@@ -1,27 +0,0 @@
package com.baeldung.disruptor;
import static org.junit.Assert.assertEquals;
import com.lmax.disruptor.EventHandler;
public class MultiEventConsumer implements EventConsumer {
private int expectedValue = -1;
private int otherExpectedValue = -1;
@Override
@SuppressWarnings("unchecked")
public EventHandler<ValueEvent>[] getEventHandler() {
final EventHandler<ValueEvent> eventHandler = (event, sequence, endOfBatch) -> assertExpectedValue(event.getValue());
final EventHandler<ValueEvent> otherEventHandler = (event, sequence, endOfBatch) -> assertOtherExpectedValue(event.getValue());
return new EventHandler[] { eventHandler, otherEventHandler };
}
private void assertExpectedValue(final int id) {
assertEquals(++expectedValue, id);
}
private void assertOtherExpectedValue(final int id) {
assertEquals(++otherExpectedValue, id);
}
}

21
core-java/src/test/java/com/baeldung/disruptor/SingleEventConsumer.java
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@@ -1,21 +0,0 @@
package com.baeldung.disruptor;
import static org.junit.Assert.assertEquals;
import com.lmax.disruptor.EventHandler;
public class SingleEventConsumer implements EventConsumer {
private int expectedValue = -1;
@Override
@SuppressWarnings("unchecked")
public EventHandler<ValueEvent>[] getEventHandler() {
final EventHandler<ValueEvent> eventHandler = (event, sequence, endOfBatch) -> assertExpectedValue(event.getValue());
return new EventHandler[] { eventHandler };
}
private void assertExpectedValue(final int id) {
assertEquals(++expectedValue, id);
}
}