/*
* Copyright 2014 Higher Frequency Trading
*
* http://www.higherfrequencytrading.com
*
* Licensed 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 net.openhft.chronicle.engine;
import net.openhft.chronicle.core.Jvm;
import net.openhft.chronicle.core.threads.ThreadDump;
import net.openhft.chronicle.engine.api.map.MapEvent;
import net.openhft.chronicle.engine.api.tree.AssetTree;
import net.openhft.chronicle.engine.server.ServerEndpoint;
import net.openhft.chronicle.engine.tree.VanillaAssetTree;
import net.openhft.chronicle.network.TCPRegistry;
import net.openhft.chronicle.network.connection.TcpChannelHub;
import net.openhft.chronicle.wire.WireType;
import org.jetbrains.annotations.NotNull;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import java.io.Closeable;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicReference;
/**
* test using the listener both remotely or locally via the engine
*
* @author Rob Austin.
*/
@RunWith(Parameterized.class)
public class BootStrapTest {
public static final WireType WIRE_TYPE = WireType.TEXT;
private static final String NAME = "test";
private static final String CONNECTION_1 = "BootStrapTests.host.port";
private static ConcurrentMap<String, String> map1, map2;
@NotNull
private static AtomicReference<Throwable> t = new AtomicReference();
private AssetTree client1;
private AssetTree client2;
private VanillaAssetTree serverAssetTree1;
private ServerEndpoint serverEndpoint1;
private ThreadDump threadDump;
public BootStrapTest() {
}
@Parameterized.Parameters
public static List<Object[]> data() {
return Arrays.asList(new Object[5][0]);
}
@Before
public void threadDump() {
threadDump = new ThreadDump();
}
@After
public void afterMethod() {
final Throwable th = t.getAndSet(null);
if (th != null) throw Jvm.rethrow(th);
}
@Before
public void before() throws IOException {
serverAssetTree1 = new VanillaAssetTree().forTesting();
TCPRegistry.createServerSocketChannelFor(CONNECTION_1);
serverEndpoint1 = new ServerEndpoint(CONNECTION_1, serverAssetTree1);
client1 = new VanillaAssetTree("client1").forRemoteAccess
(CONNECTION_1, WIRE_TYPE);
client2 = new VanillaAssetTree("client2").forRemoteAccess
(CONNECTION_1, WIRE_TYPE);
}
@After
public void after() throws IOException {
client1.close();
client2.close();
if (serverEndpoint1 != null)
serverEndpoint1.close();
serverAssetTree1.close();
if (map1 instanceof Closeable)
((Closeable) map1).close();
TcpChannelHub.closeAllHubs();
TCPRegistry.reset();
threadDump.assertNoNewThreads();
}
/**
* the fail over client connects to server1 ( server1 is the primary) , server1 is then shut
* down and the client connects to the secondary
*
* @throws IOException
* @throws InterruptedException
*/
@Test(timeout = 2_000)
public void nonBootstrappingTest() throws IOException, InterruptedException {
try {
{
map1 = client1.acquireMap(NAME, String.class, String.class);
@NotNull BlockingQueue<MapEvent> q1 = new ArrayBlockingQueue<MapEvent>(1);
client1.registerSubscriber(NAME, MapEvent.class, q1::add);
map1.put("hello", "world1");
Assert.assertEquals("world1", map1.get("hello"));
final String poll = q1.poll(2, TimeUnit.SECONDS).toString();
Assert.assertEquals("!InsertedEvent {\n" +
" assetName: /test,\n" +
" key: hello,\n" +
" value: world1,\n" +
" isReplicationEvent: false\n" +
"}\n",
poll);
}
client1.close();
{
map2 = client2.acquireMap(NAME, String.class, String.class);
@NotNull BlockingQueue<MapEvent> q2 = new ArrayBlockingQueue(1);
client2.registerSubscriber(NAME + "?bootstrap=false", MapEvent.class, q2::add);
map2.put("hello", "world2");
Assert.assertEquals("world2", map2.get("hello"));
final String poll = q2.poll(2, TimeUnit.SECONDS).toString();
Assert.assertEquals("!UpdatedEvent {\n" +
" assetName: /test,\n" +
" key: hello,\n" +
" oldValue: world1,\n" +
" value: world2,\n" +
" isReplicationEvent: false,\n" +
" hasValueChanged: true\n" +
"}\n", poll);
}
} catch (Exception e) {
throw Jvm.rethrow(e);
}
}
/**
* the fail over client connects to server1 ( server1 is the primary) , server1 is then shut
* down and the client connects to the secondary
*
* @throws IOException
* @throws InterruptedException
*/
@Test(timeout = 2_000)
public void bootstrappingTest() throws IOException, InterruptedException {
try {
{
map1 = client1.acquireMap(NAME, String.class, String.class);
@NotNull BlockingQueue<MapEvent> q1 = new ArrayBlockingQueue(1);
client1.registerSubscriber(NAME, MapEvent.class, q1::add);
map1.put("hello", "world1");
Assert.assertEquals("world1", map1.get("hello"));
final String poll = q1.poll(10, TimeUnit.SECONDS).toString();
Assert.assertEquals("!InsertedEvent {\n" +
" assetName: /test,\n" +
" key: hello,\n" +
" value: world1,\n" +
" isReplicationEvent: false\n" +
"}\n",
poll);
}
client1.close();
{
map2 = client2.acquireMap(NAME, String.class, String.class);
@NotNull BlockingQueue<MapEvent> q2 = new ArrayBlockingQueue(100);
client2.registerSubscriber(NAME + "?bootstrap=false", MapEvent.class, q2::add);
map2.put("hello", "world2");
// shutting server1 down should cause the failover client to connect to server 2
Assert.assertEquals("world2", map2.get("hello"));
final String poll = q2.poll(10, TimeUnit.SECONDS).toString();
Assert.assertEquals("!UpdatedEvent {\n" +
" assetName: /test,\n" +
" key: hello,\n" +
" oldValue: world1,\n" +
" value: world2,\n" +
" isReplicationEvent: false,\n" +
" hasValueChanged: true\n" +
"}\n", poll);
}
} catch (Exception e) {
throw Jvm.rethrow(e);
}
}
}