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GH-3509 Register TcpSenders on wrapped connection

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Fixes https://github.com/spring-projects/spring-integration/issues/3509

Dead connections are not being removed on `TcpSender` when using a `TcpConnectionInterceptor`.
May cause a memory leak

* Fix `TcpConnectionInterceptorSupport` to override `registerSenders()`
 and delegate to the `this.theConnection`
* Introduce vararg-based `setInterceptor()` into `TcpConnectionInterceptorFactoryChain`
* Remove redundant `//NOSONAR` and properly return an `Arrays.copyOf()` in the `getInterceptorFactories()`

**Cherry-pick to `5.4.x`**
This commit is contained in:
Mário Dias
2021-03-12 15:33:11 +00:00
committed by Artem Bilan
parent 42fa248753
commit 78a0ae8a04
4 changed files with 98 additions and 61 deletions
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12
spring-integration-ip/src/main/java/org/springframework/integration/ip/tcp/connection/TcpConnectionInterceptorFactoryChain.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2019 the original author or authors.
* Copyright 2002-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -22,6 +22,8 @@ import org.springframework.lang.Nullable;
/**
* @author Gary Russell
* @author Artem Bilan
*
* @since 2.0
*
*/
@@ -31,11 +33,17 @@ public class TcpConnectionInterceptorFactoryChain {
@Nullable
public TcpConnectionInterceptorFactory[] getInterceptorFactories() {
return this.interceptorFactories; //NOSONAR
return this.interceptorFactories != null
? Arrays.copyOf(this.interceptorFactories, this.interceptorFactories.length)
: null;
}
public void setInterceptors(TcpConnectionInterceptorFactory[] interceptorFactories) {
this.interceptorFactories = Arrays.copyOf(interceptorFactories, interceptorFactories.length);
}
public void setInterceptor(TcpConnectionInterceptorFactory... interceptorFactories) {
setInterceptors(interceptorFactories);
}
}

10
spring-integration-ip/src/main/java/org/springframework/integration/ip/tcp/connection/TcpConnectionInterceptorSupport.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2019 the original author or authors.
* Copyright 2002-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -16,6 +16,8 @@
package org.springframework.integration.ip.tcp.connection;
import java.util.List;
import javax.net.ssl.SSLSession;
import org.springframework.context.ApplicationEventPublisher;
@@ -29,6 +31,7 @@ import org.springframework.messaging.support.ErrorMessage;
* to the underlying {@link TcpConnection}.
*
* @author Gary Russell
* @author Mário Dias
*
* @since 2.0
*/
@@ -96,6 +99,11 @@ public abstract class TcpConnectionInterceptorSupport extends TcpConnectionSuppo
this.theConnection.registerSender(this);
}
@Override
public void registerSenders(List<TcpSender> sendersToRegister) {
this.theConnection.registerSenders(sendersToRegister);
}
@Override
public String getConnectionId() {
return this.theConnection.getConnectionId();

26
spring-integration-ip/src/test/java/org/springframework/integration/ip/tcp/AbstractTcpChannelAdapterTests.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright 2013-2019 the original author or authors.
* Copyright 2013-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -16,34 +16,29 @@
package org.springframework.integration.ip.tcp;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.integration.ip.tcp.connection.AbstractConnectionFactory;
import org.springframework.integration.ip.tcp.connection.HelloWorldInterceptorFactory;
/**
* @author Gary Russell
* @author Mário Dias
* @author Artem Bilan
*
* @since 3.0
*
*/
public class AbstractTcpChannelAdapterTests {
private static final ApplicationEventPublisher NOOP_PUBLISHER = new ApplicationEventPublisher() {
@Override
public void publishEvent(ApplicationEvent event) {
}
@Override
public void publishEvent(Object event) {
}
};
private static final ApplicationEventPublisher NOOP_PUBLISHER = event -> { };
protected HelloWorldInterceptorFactory newInterceptorFactory() {
return newInterceptorFactory(NOOP_PUBLISHER);
}
protected HelloWorldInterceptorFactory newInterceptorFactory(ApplicationEventPublisher applicationEventPublisher) {
HelloWorldInterceptorFactory factory = new HelloWorldInterceptorFactory();
factory.setApplicationEventPublisher(NOOP_PUBLISHER);
factory.setApplicationEventPublisher(applicationEventPublisher);
return factory;
}
@@ -51,5 +46,4 @@ public class AbstractTcpChannelAdapterTests {
connectionFactory.setApplicationEventPublisher(NOOP_PUBLISHER);
}
}

111
spring-integration-ip/src/test/java/org/springframework/integration/ip/tcp/TcpSendingMessageHandlerTests.java
View File

@@ -39,10 +39,11 @@ import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicReference;
import javax.net.ServerSocketFactory;
import javax.net.SocketFactory;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.junit.Test;
import org.junit.jupiter.api.Test;
import org.mockito.Mockito;
import org.springframework.beans.factory.BeanFactory;
@@ -57,9 +58,11 @@ import org.springframework.integration.config.ConsumerEndpointFactoryBean;
import org.springframework.integration.ip.tcp.connection.AbstractClientConnectionFactory;
import org.springframework.integration.ip.tcp.connection.AbstractConnectionFactory;
import org.springframework.integration.ip.tcp.connection.AbstractServerConnectionFactory;
import org.springframework.integration.ip.tcp.connection.TcpConnectionCloseEvent;
import org.springframework.integration.ip.tcp.connection.TcpConnectionInterceptorFactory;
import org.springframework.integration.ip.tcp.connection.TcpConnectionInterceptorFactoryChain;
import org.springframework.integration.ip.tcp.connection.TcpNetClientConnectionFactory;
import org.springframework.integration.ip.tcp.connection.TcpNetServerConnectionFactory;
import org.springframework.integration.ip.tcp.connection.TcpNioClientConnectionFactory;
import org.springframework.integration.ip.tcp.serializer.ByteArrayCrLfSerializer;
import org.springframework.integration.ip.tcp.serializer.ByteArrayLengthHeaderSerializer;
@@ -77,6 +80,7 @@ import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
/**
* @author Gary Russell
* @author Artem Bilan
* @author Mario Dias
*
* @since 2.0
*/
@@ -94,7 +98,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
@Test
public void testNetCrLf() throws Exception {
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<ServerSocket>();
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<>();
final CountDownLatch latch = new CountDownLatch(1);
final AtomicBoolean done = new AtomicBoolean();
this.executor.execute(() -> {
@@ -118,8 +122,8 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
}
});
assertThat(latch.await(10, TimeUnit.SECONDS)).isTrue();
AbstractConnectionFactory ccf = new TcpNetClientConnectionFactory("localhost",
serverSocket.get().getLocalPort());
AbstractConnectionFactory ccf =
new TcpNetClientConnectionFactory("localhost", serverSocket.get().getLocalPort());
noopPublisher(ccf);
ByteArrayCrLfSerializer serializer = new ByteArrayCrLfSerializer();
ccf.setSerializer(serializer);
@@ -147,7 +151,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
@Test
public void testNetCrLfClientMode() throws Exception {
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<ServerSocket>();
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<>();
final CountDownLatch latch = new CountDownLatch(1);
final AtomicBoolean done = new AtomicBoolean();
this.executor.execute(() -> {
@@ -213,7 +217,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
@Test
public void testNioCrLf() throws Exception {
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<ServerSocket>();
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<>();
final CountDownLatch latch = new CountDownLatch(1);
final AtomicBoolean done = new AtomicBoolean();
this.executor.execute(() -> {
@@ -253,7 +257,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
adapter.setOutputChannel(channel);
handler.handleMessage(MessageBuilder.withPayload("Test").build());
handler.handleMessage(MessageBuilder.withPayload("Test").build());
Set<String> results = new HashSet<String>();
Set<String> results = new HashSet<>();
Message<?> mOut = channel.receive(10000);
assertThat(mOut).isNotNull();
results.add(new String((byte[]) mOut.getPayload()));
@@ -269,7 +273,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
@Test
public void testNetStxEtx() throws Exception {
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<ServerSocket>();
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<>();
final CountDownLatch latch = new CountDownLatch(1);
final AtomicBoolean done = new AtomicBoolean();
this.executor.execute(() -> {
@@ -322,7 +326,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
@Test
public void testNioStxEtx() throws Exception {
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<ServerSocket>();
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<>();
final CountDownLatch latch = new CountDownLatch(1);
final AtomicBoolean done = new AtomicBoolean();
this.executor.execute(() -> {
@@ -362,7 +366,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
adapter.setOutputChannel(channel);
handler.handleMessage(MessageBuilder.withPayload("Test").build());
handler.handleMessage(MessageBuilder.withPayload("Test").build());
Set<String> results = new HashSet<String>();
Set<String> results = new HashSet<>();
Message<?> mOut = channel.receive(10000);
assertThat(mOut).isNotNull();
results.add(new String((byte[]) mOut.getPayload()));
@@ -434,7 +438,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
@Test
public void testNioLength() throws Exception {
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<ServerSocket>();
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<>();
final CountDownLatch latch = new CountDownLatch(1);
final AtomicBoolean done = new AtomicBoolean();
this.executor.execute(() -> {
@@ -477,7 +481,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
adapter.setOutputChannel(channel);
handler.handleMessage(MessageBuilder.withPayload("Test").build());
handler.handleMessage(MessageBuilder.withPayload("Test").build());
Set<String> results = new HashSet<String>();
Set<String> results = new HashSet<>();
Message<?> mOut = channel.receive(10000);
assertThat(mOut).isNotNull();
results.add(new String((byte[]) mOut.getPayload()));
@@ -493,7 +497,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
@Test
public void testNetSerial() throws Exception {
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<ServerSocket>();
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<>();
final CountDownLatch latch = new CountDownLatch(1);
final AtomicBoolean done = new AtomicBoolean();
this.executor.execute(() -> {
@@ -584,7 +588,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
adapter.setOutputChannel(channel);
handler.handleMessage(MessageBuilder.withPayload("Test").build());
handler.handleMessage(MessageBuilder.withPayload("Test").build());
Set<String> results = new HashSet<String>();
Set<String> results = new HashSet<>();
Message<?> mOut = channel.receive(10000);
assertThat(mOut).isNotNull();
results.add((String) mOut.getPayload());
@@ -600,7 +604,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
@Test
public void testNetSingleUseNoInbound() throws Exception {
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<ServerSocket>();
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<>();
final CountDownLatch latch = new CountDownLatch(1);
final Semaphore semaphore = new Semaphore(0);
final AtomicBoolean done = new AtomicBoolean();
@@ -647,7 +651,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
@Test
public void testNioSingleUseNoInbound() throws Exception {
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<ServerSocket>();
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<>();
final CountDownLatch latch = new CountDownLatch(1);
final Semaphore semaphore = new Semaphore(0);
final AtomicBoolean done = new AtomicBoolean();
@@ -694,7 +698,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
@Test
public void testNetSingleUseWithInbound() throws Exception {
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<ServerSocket>();
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<>();
final CountDownLatch latch = new CountDownLatch(1);
final Semaphore semaphore = new Semaphore(0);
final AtomicBoolean done = new AtomicBoolean();
@@ -739,7 +743,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
handler.handleMessage(MessageBuilder.withPayload("Test").build());
handler.handleMessage(MessageBuilder.withPayload("Test").build());
assertThat(semaphore.tryAcquire(2, 10000, TimeUnit.MILLISECONDS)).isTrue();
Set<String> replies = new HashSet<String>();
Set<String> replies = new HashSet<>();
for (int i = 0; i < 2; i++) {
Message<?> mOut = channel.receive(10000);
assertThat(mOut).isNotNull();
@@ -754,7 +758,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
@Test
public void testNioSingleUseWithInbound() throws Exception {
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<ServerSocket>();
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<>();
final CountDownLatch latch = new CountDownLatch(1);
final Semaphore semaphore = new Semaphore(0);
final AtomicBoolean done = new AtomicBoolean();
@@ -799,7 +803,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
handler.handleMessage(MessageBuilder.withPayload("Test").build());
handler.handleMessage(MessageBuilder.withPayload("Test").build());
assertThat(semaphore.tryAcquire(2, 10000, TimeUnit.MILLISECONDS)).isTrue();
Set<String> replies = new HashSet<String>();
Set<String> replies = new HashSet<>();
for (int i = 0; i < 2; i++) {
Message<?> mOut = channel.receive(10000);
assertThat(mOut).isNotNull();
@@ -814,11 +818,11 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
@Test
public void testNioSingleUseWithInboundMany() throws Exception {
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<ServerSocket>();
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<>();
final CountDownLatch latch = new CountDownLatch(1);
final Semaphore semaphore = new Semaphore(0);
final AtomicBoolean done = new AtomicBoolean();
final List<Socket> serverSockets = new ArrayList<Socket>();
final List<Socket> serverSockets = new ArrayList<>();
this.executor.execute(() -> {
try {
ServerSocket server = ServerSocketFactory.getDefault().createServerSocket(0, 100);
@@ -900,7 +904,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
@Test
public void testNetNegotiate() throws Exception {
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<ServerSocket>();
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<>();
final CountDownLatch latch = new CountDownLatch(1);
final AtomicBoolean done = new AtomicBoolean();
this.executor.execute(() -> {
@@ -912,7 +916,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
int i = 0;
while (true) {
ObjectInputStream ois = new ObjectInputStream(socket.getInputStream());
Object in = null;
Object in;
ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream());
if (i == 0) {
in = ois.readObject();
@@ -944,7 +948,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
ccf.setDeserializer(new DefaultDeserializer());
ccf.setSoTimeout(10000);
TcpConnectionInterceptorFactoryChain fc = new TcpConnectionInterceptorFactoryChain();
fc.setInterceptors(new TcpConnectionInterceptorFactory[] {
fc.setInterceptors(new TcpConnectionInterceptorFactory[]{
newInterceptorFactory(),
newInterceptorFactory()
});
@@ -971,7 +975,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
@Test
public void testNioNegotiate() throws Exception {
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<ServerSocket>();
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<>();
final CountDownLatch latch = new CountDownLatch(1);
final AtomicBoolean done = new AtomicBoolean();
this.executor.execute(() -> {
@@ -1011,7 +1015,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
ccf.setDeserializer(new DefaultDeserializer());
ccf.setSoTimeout(10000);
TcpConnectionInterceptorFactoryChain fc = new TcpConnectionInterceptorFactoryChain();
fc.setInterceptors(new TcpConnectionInterceptorFactory[] { newInterceptorFactory() });
fc.setInterceptors(new TcpConnectionInterceptorFactory[]{ newInterceptorFactory() });
ccf.setInterceptorFactoryChain(fc);
ccf.start();
TcpSendingMessageHandler handler = new TcpSendingMessageHandler();
@@ -1023,7 +1027,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
for (int i = 0; i < 1000; i++) {
handler.handleMessage(MessageBuilder.withPayload("Test").build());
}
Set<String> results = new TreeSet<String>();
Set<String> results = new TreeSet<>();
for (int i = 0; i < 1000; i++) {
Message<?> mOut = channel.receive(10000);
assertThat(mOut).isNotNull();
@@ -1040,7 +1044,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
@Test
public void testNetNegotiateSingleNoListen() throws Exception {
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<ServerSocket>();
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<>();
final CountDownLatch latch = new CountDownLatch(1);
final AtomicBoolean done = new AtomicBoolean();
this.executor.execute(() -> {
@@ -1080,10 +1084,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
ccf.setDeserializer(new DefaultDeserializer());
ccf.setSoTimeout(10000);
TcpConnectionInterceptorFactoryChain fc = new TcpConnectionInterceptorFactoryChain();
fc.setInterceptors(new TcpConnectionInterceptorFactory[] {
newInterceptorFactory(),
newInterceptorFactory()
});
fc.setInterceptor(newInterceptorFactory(), newInterceptorFactory());
ccf.setInterceptorFactoryChain(fc);
ccf.setSingleUse(true);
ccf.start();
@@ -1097,7 +1098,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
@Test
public void testNioNegotiateSingleNoListen() throws Exception {
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<ServerSocket>();
final AtomicReference<ServerSocket> serverSocket = new AtomicReference<>();
final CountDownLatch latch = new CountDownLatch(1);
final AtomicBoolean done = new AtomicBoolean();
this.executor.execute(() -> {
@@ -1137,10 +1138,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
ccf.setDeserializer(new DefaultDeserializer());
ccf.setSoTimeout(10000);
TcpConnectionInterceptorFactoryChain fc = new TcpConnectionInterceptorFactoryChain();
fc.setInterceptors(new TcpConnectionInterceptorFactory[] {
newInterceptorFactory(),
newInterceptorFactory()
});
fc.setInterceptor(newInterceptorFactory(), newInterceptorFactory());
ccf.setInterceptorFactoryChain(fc);
ccf.setSingleUse(true);
ccf.start();
@@ -1153,18 +1151,18 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
}
@Test
public void testOutboundChannelAdapterWithinChain() throws Exception {
public void testOutboundChannelAdapterWithinChain() {
AbstractApplicationContext ctx = new ClassPathXmlApplicationContext(
"TcpOutboundChannelAdapterWithinChainTests-context.xml", this.getClass());
AbstractServerConnectionFactory scf = ctx.getBean(AbstractServerConnectionFactory.class);
TestingUtilities.waitListening(scf, null);
ctx.getBean(AbstractClientConnectionFactory.class).setPort(scf.getPort());
ctx.getBeansOfType(ConsumerEndpointFactoryBean.class).values().forEach(c -> c.start());
ctx.getBeansOfType(ConsumerEndpointFactoryBean.class).values().forEach(ConsumerEndpointFactoryBean::start);
MessageChannel channelAdapterWithinChain = ctx.getBean("tcpOutboundChannelAdapterWithinChain",
MessageChannel.class);
PollableChannel inbound = ctx.getBean("inbound", PollableChannel.class);
String testPayload = "Hello, world!";
channelAdapterWithinChain.send(new GenericMessage<String>(testPayload));
channelAdapterWithinChain.send(new GenericMessage<>(testPayload));
Message<?> m = inbound.receive(1000);
assertThat(m).isNotNull();
assertThat(new String((byte[]) m.getPayload())).isEqualTo(testPayload);
@@ -1180,7 +1178,7 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
}).when(mockCcf).getConnection();
handler.setConnectionFactory(mockCcf);
try {
handler.handleMessage(new GenericMessage<String>("foo"));
handler.handleMessage(new GenericMessage<>("foo"));
fail("Expected exception");
}
catch (Exception e) {
@@ -1191,4 +1189,33 @@ public class TcpSendingMessageHandlerTests extends AbstractTcpChannelAdapterTest
}
}
@Test
public void testInterceptedCleanup() throws Exception {
final CountDownLatch latch = new CountDownLatch(1);
AbstractServerConnectionFactory scf = new TcpNetServerConnectionFactory(0);
ByteArrayCrLfSerializer serializer = new ByteArrayCrLfSerializer();
scf.setSerializer(serializer);
scf.setDeserializer(serializer);
TcpReceivingChannelAdapter adapter = new TcpReceivingChannelAdapter();
adapter.setConnectionFactory(scf);
TcpSendingMessageHandler handler = new TcpSendingMessageHandler();
handler.setConnectionFactory(scf);
scf.setApplicationEventPublisher(event -> {
if (event instanceof TcpConnectionCloseEvent) {
latch.countDown();
}
});
TcpConnectionInterceptorFactoryChain fc = new TcpConnectionInterceptorFactoryChain();
fc.setInterceptor(newInterceptorFactory(scf.getApplicationEventPublisher()));
scf.setInterceptorFactoryChain(fc);
scf.start();
TestingUtilities.waitListening(scf, null);
int port = scf.getPort();
Socket socket = SocketFactory.getDefault().createSocket("localhost", port);
socket.close();
assertThat(latch.await(10, TimeUnit.SECONDS)).isTrue();
assertThat(handler.getConnections().isEmpty()).isTrue();
scf.stop();
}
}