/*
* 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.flume.sink;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.concurrent.atomic.AtomicLong;
import com.google.common.base.Charsets;
import java.io.FileInputStream;
import java.security.KeyStore;
import java.security.Security;
import java.util.concurrent.Executors;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLEngine;
import org.apache.avro.AvroRemoteException;
import org.apache.avro.ipc.NettyServer;
import org.apache.avro.ipc.NettyTransceiver;
import org.apache.avro.ipc.Server;
import org.apache.avro.ipc.specific.SpecificRequestor;
import org.apache.avro.ipc.specific.SpecificResponder;
import org.apache.flume.Channel;
import org.apache.flume.ChannelSelector;
import org.apache.flume.Context;
import org.apache.flume.Event;
import org.apache.flume.EventDeliveryException;
import org.apache.flume.Sink;
import org.apache.flume.Transaction;
import org.apache.flume.channel.ChannelProcessor;
import org.apache.flume.api.RpcClient;
import org.apache.flume.channel.MemoryChannel;
import org.apache.flume.channel.ReplicatingChannelSelector;
import org.apache.flume.conf.Configurables;
import org.apache.flume.event.EventBuilder;
import org.apache.flume.lifecycle.LifecycleController;
import org.apache.flume.lifecycle.LifecycleState;
import org.apache.flume.source.AvroSource;
import org.apache.flume.source.avro.AvroFlumeEvent;
import org.apache.flume.source.avro.AvroSourceProtocol;
import org.apache.flume.source.avro.Status;
import org.jboss.netty.channel.ChannelException;
import org.jboss.netty.channel.ChannelPipeline;
import org.jboss.netty.channel.ChannelPipelineFactory;
import org.jboss.netty.channel.Channels;
import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory;
import org.jboss.netty.handler.ssl.SslHandler;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class TestAvroSink {
private static final Logger logger = LoggerFactory
.getLogger(TestAvroSink.class);
private static final String hostname = "127.0.0.1";
private static final Integer port = 41414;
private AvroSink sink;
private Channel channel;
public void setUp() {
setUp("none", 0);
}
public void setUp(String compressionType, int compressionLevel) {
if (sink != null) { throw new RuntimeException("double setup");}
sink = new AvroSink();
channel = new MemoryChannel();
Context context = new Context();
context.put("hostname", hostname);
context.put("port", String.valueOf(port));
context.put("batch-size", String.valueOf(2));
context.put("connect-timeout", String.valueOf(2000L));
context.put("request-timeout", String.valueOf(3000L));
if (compressionType.equals("deflate")) {
context.put("compression-type", compressionType);
context.put("compression-level", Integer.toString(compressionLevel));
}
sink.setChannel(channel);
Configurables.configure(sink, context);
Configurables.configure(channel, context);
}
@Test
public void testLifecycle() throws InterruptedException,
InstantiationException, IllegalAccessException {
setUp();
Server server = createServer(new MockAvroServer());
server.start();
sink.start();
Assert.assertTrue(LifecycleController.waitForOneOf(sink,
LifecycleState.START_OR_ERROR, 5000));
sink.stop();
Assert.assertTrue(LifecycleController.waitForOneOf(sink,
LifecycleState.STOP_OR_ERROR, 5000));
server.close();
}
@Test
public void testProcess() throws InterruptedException,
EventDeliveryException, InstantiationException, IllegalAccessException {
setUp();
Event event = EventBuilder.withBody("test event 1", Charsets.UTF_8);
Server server = createServer(new MockAvroServer());
server.start();
sink.start();
Assert.assertTrue(LifecycleController.waitForOneOf(sink,
LifecycleState.START_OR_ERROR, 5000));
Transaction transaction = channel.getTransaction();
transaction.begin();
for (int i = 0; i < 10; i++) {
channel.put(event);
}
transaction.commit();
transaction.close();
for (int i = 0; i < 5; i++) {
Sink.Status status = sink.process();
Assert.assertEquals(Sink.Status.READY, status);
}
Assert.assertEquals(Sink.Status.BACKOFF, sink.process());
sink.stop();
Assert.assertTrue(LifecycleController.waitForOneOf(sink,
LifecycleState.STOP_OR_ERROR, 5000));
server.close();
}
@Test
public void testTimeout() throws InterruptedException,
EventDeliveryException, InstantiationException, IllegalAccessException {
setUp();
Event event = EventBuilder.withBody("foo", Charsets.UTF_8);
AtomicLong delay = new AtomicLong();
Server server = createServer(new DelayMockAvroServer(delay));
server.start();
sink.start();
Assert.assertTrue(LifecycleController.waitForOneOf(sink,
LifecycleState.START_OR_ERROR, 5000));
Transaction txn = channel.getTransaction();
txn.begin();
for (int i = 0; i < 4; i++) {
channel.put(event);
}
txn.commit();
txn.close();
// should throw EventDeliveryException due to connect timeout
delay.set(3000L); // because connect-timeout = 2000
boolean threw = false;
try {
sink.process();
} catch (EventDeliveryException ex) {
logger.info("Correctly threw due to connect timeout. Exception follows.",
ex);
threw = true;
}
Assert.assertTrue("Must throw due to connect timeout", threw);
// now, allow the connect handshake to occur
delay.set(0);
sink.process();
// should throw another EventDeliveryException due to request timeout
delay.set(4000L); // because request-timeout = 3000
threw = false;
try {
sink.process();
} catch (EventDeliveryException ex) {
logger.info("Correctly threw due to request timeout. Exception follows.",
ex);
threw = true;
}
Assert.assertTrue("Must throw due to request timeout", threw);
sink.stop();
Assert.assertTrue(LifecycleController.waitForOneOf(sink,
LifecycleState.STOP_OR_ERROR, 5000));
server.close();
}
@Test
public void testFailedConnect() throws InterruptedException,
EventDeliveryException, InstantiationException, IllegalAccessException {
setUp();
Event event = EventBuilder.withBody("test event 1",
Charset.forName("UTF8"));
Server server = createServer(new MockAvroServer());
server.start();
sink.start();
Assert.assertTrue(LifecycleController.waitForOneOf(sink,
LifecycleState.START_OR_ERROR, 5000));
Thread.sleep(500L); // let socket startup
server.close();
Thread.sleep(500L); // sleep a little to allow close occur
Transaction transaction = channel.getTransaction();
transaction.begin();
for (int i = 0; i < 10; i++) {
channel.put(event);
}
transaction.commit();
transaction.close();
for (int i = 0; i < 5; i++) {
boolean threwException = false;
try {
sink.process();
} catch (EventDeliveryException e) {
threwException = true;
}
Assert.assertTrue("Must throw EventDeliveryException if disconnected",
threwException);
}
server = createServer(new MockAvroServer());
server.start();
for (int i = 0; i < 5; i++) {
Sink.Status status = sink.process();
Assert.assertEquals(Sink.Status.READY, status);
}
Assert.assertEquals(Sink.Status.BACKOFF, sink.process());
sink.stop();
Assert.assertTrue(LifecycleController.waitForOneOf(sink,
LifecycleState.STOP_OR_ERROR, 5000));
server.close();
}
@Test
public void testReset() throws Exception {
setUp();
Server server = createServer(new MockAvroServer());
server.start();
Context context = new Context();
context.put("hostname", hostname);
context.put("port", String.valueOf(port));
context.put("batch-size", String.valueOf(2));
context.put("connect-timeout", String.valueOf(2000L));
context.put("request-timeout", String.valueOf(3000L));
context.put("reset-connection-interval", String.valueOf("5"));
sink.setChannel(channel);
Configurables.configure(sink, context);
sink.start();
RpcClient firstClient = sink.getUnderlyingClient();
Thread.sleep(6000);
// Make sure they are not the same object, connection should be reset
Assert.assertFalse(firstClient == sink.getUnderlyingClient());
sink.stop();
context.put("hostname", hostname);
context.put("port", String.valueOf(port));
context.put("batch-size", String.valueOf(2));
context.put("connect-timeout", String.valueOf(2000L));
context.put("request-timeout", String.valueOf(3000L));
context.put("reset-connection-interval", String.valueOf("0"));
sink.setChannel(channel);
Configurables.configure(sink, context);
sink.start();
firstClient = sink.getUnderlyingClient();
Thread.sleep(6000);
// Make sure they are the same object, since connection should not be reset
Assert.assertTrue(firstClient == sink.getUnderlyingClient());
sink.stop();
context.clear();
context.put("hostname", hostname);
context.put("port", String.valueOf(port));
context.put("batch-size", String.valueOf(2));
context.put("connect-timeout", String.valueOf(2000L));
context.put("request-timeout", String.valueOf(3000L));
sink.setChannel(channel);
Configurables.configure(sink, context);
sink.start();
firstClient = sink.getUnderlyingClient();
Thread.sleep(6000);
// Make sure they are the same object, since connection should not be reset
Assert.assertTrue(firstClient == sink.getUnderlyingClient());
sink.stop();
server.close();
}
@Test
public void testSslProcess() throws InterruptedException,
EventDeliveryException, InstantiationException, IllegalAccessException {
setUp();
Event event = EventBuilder.withBody("test event 1", Charsets.UTF_8);
Server server = createSslServer(new MockAvroServer());
server.start();
Context context = new Context();
context.put("hostname", hostname);
context.put("port", String.valueOf(port));
context.put("ssl", String.valueOf(true));
context.put("trust-all-certs", String.valueOf(true));
context.put("batch-size", String.valueOf(2));
context.put("connect-timeout", String.valueOf(2000L));
context.put("request-timeout", String.valueOf(3000L));
Configurables.configure(sink, context);
sink.start();
Assert.assertTrue(LifecycleController.waitForOneOf(sink,
LifecycleState.START_OR_ERROR, 5000));
Transaction transaction = channel.getTransaction();
transaction.begin();
for (int i = 0; i < 10; i++) {
channel.put(event);
}
transaction.commit();
transaction.close();
for (int i = 0; i < 5; i++) {
Sink.Status status = sink.process();
Assert.assertEquals(Sink.Status.READY, status);
}
Assert.assertEquals(Sink.Status.BACKOFF, sink.process());
sink.stop();
Assert.assertTrue(LifecycleController.waitForOneOf(sink,
LifecycleState.STOP_OR_ERROR, 5000));
server.close();
}
@Test
public void testSslProcessWithTrustStore() throws InterruptedException,
EventDeliveryException, InstantiationException, IllegalAccessException {
setUp();
Event event = EventBuilder.withBody("test event 1", Charsets.UTF_8);
Server server = createSslServer(new MockAvroServer());
server.start();
Context context = new Context();
context.put("hostname", hostname);
context.put("port", String.valueOf(port));
context.put("ssl", String.valueOf(true));
context.put("truststore", "src/test/resources/truststore.jks");
context.put("truststore-password", "password");
context.put("batch-size", String.valueOf(2));
context.put("connect-timeout", String.valueOf(2000L));
context.put("request-timeout", String.valueOf(3000L));
Configurables.configure(sink, context);
sink.start();
Assert.assertTrue(LifecycleController.waitForOneOf(sink,
LifecycleState.START_OR_ERROR, 5000));
Transaction transaction = channel.getTransaction();
transaction.begin();
for (int i = 0; i < 10; i++) {
channel.put(event);
}
transaction.commit();
transaction.close();
for (int i = 0; i < 5; i++) {
Sink.Status status = sink.process();
Assert.assertEquals(Sink.Status.READY, status);
}
Assert.assertEquals(Sink.Status.BACKOFF, sink.process());
sink.stop();
Assert.assertTrue(LifecycleController.waitForOneOf(sink,
LifecycleState.STOP_OR_ERROR, 5000));
server.close();
}
private Server createServer(AvroSourceProtocol protocol)
throws IllegalAccessException, InstantiationException {
Server server = new NettyServer(new SpecificResponder(
AvroSourceProtocol.class, protocol), new InetSocketAddress(
hostname, port));
return server;
}
@Test
public void testSslWithCompression() throws InterruptedException,
EventDeliveryException, InstantiationException, IllegalAccessException {
setUp("deflate", 6);
boolean bound = false;
AvroSource source;
Channel sourceChannel;
int selectedPort;
source = new AvroSource();
sourceChannel = new MemoryChannel();
Configurables.configure(sourceChannel, new Context());
List<Channel> channels = new ArrayList<Channel>();
channels.add(sourceChannel);
ChannelSelector rcs = new ReplicatingChannelSelector();
rcs.setChannels(channels);
source.setChannelProcessor(new ChannelProcessor(rcs));
Context context = new Context();
context.put("port", port.toString());
context.put("bind", hostname);
context.put("threads", "50");
context.put("compression-type", "deflate");
context.put("ssl", String.valueOf(true));
context.put("keystore", "src/test/resources/server.p12");
context.put("keystore-password", "password");
context.put("keystore-type", "PKCS12");
Configurables.configure(source, context);
source.start();
Assert
.assertTrue("Reached start or error", LifecycleController.waitForOneOf(
source, LifecycleState.START_OR_ERROR));
Assert.assertEquals("Server is started", LifecycleState.START,
source.getLifecycleState());
Event event = EventBuilder.withBody("Hello avro",
Charset.forName("UTF8"));
context = new Context();
context.put("hostname", hostname);
context.put("port", String.valueOf(port));
context.put("ssl", String.valueOf(true));
context.put("trust-all-certs", String.valueOf(true));
context.put("batch-size", String.valueOf(2));
context.put("connect-timeout", String.valueOf(2000L));
context.put("request-timeout", String.valueOf(3000L));
context.put("compression-type", "deflate");
context.put("compression-level", Integer.toString(6));
Configurables.configure(sink, context);
sink.start();
Transaction sickTransaction = channel.getTransaction();
sickTransaction.begin();
for (int i = 0; i < 10; i++) {
channel.put(event);
}
sickTransaction.commit();
sickTransaction.close();
for (int i = 0; i < 5; i++) {
Sink.Status status = sink.process();
logger.debug("Calling Process " + i + " times:" + status);
Assert.assertEquals(Sink.Status.READY, status);
}
sink.stop();
Transaction sourceTransaction = sourceChannel.getTransaction();
sourceTransaction.begin();
Event sourceEvent = sourceChannel.take();
Assert.assertNotNull(sourceEvent);
Assert.assertEquals("Channel contained our event", "Hello avro",
new String(sourceEvent.getBody()));
sourceTransaction.commit();
sourceTransaction.close();
logger.debug("Round trip event:{}", sourceEvent);
source.stop();
Assert.assertTrue("Reached stop or error",
LifecycleController.waitForOneOf(source, LifecycleState.STOP_OR_ERROR));
Assert.assertEquals("Server is stopped", LifecycleState.STOP,
source.getLifecycleState());
}
@Test
public void testSslSinkWithNonSslServer() throws InterruptedException,
EventDeliveryException, InstantiationException, IllegalAccessException {
setUp();
Event event = EventBuilder.withBody("test event 1", Charsets.UTF_8);
Server server = createServer(new MockAvroServer());
server.start();
Context context = new Context();
context.put("hostname", hostname);
context.put("port", String.valueOf(port));
context.put("ssl", String.valueOf(true));
context.put("trust-all-certs", String.valueOf(true));
context.put("batch-size", String.valueOf(2));
context.put("connect-timeout", String.valueOf(2000L));
context.put("request-timeout", String.valueOf(3000L));
Configurables.configure(sink, context);
sink.start();
Assert.assertTrue(LifecycleController.waitForOneOf(sink,
LifecycleState.START_OR_ERROR, 5000));
Transaction transaction = channel.getTransaction();
transaction.begin();
for (int i = 0; i < 10; i++) {
channel.put(event);
}
transaction.commit();
transaction.close();
boolean failed = false;
try {
for (int i = 0; i < 5; i++) {
sink.process();
failed = true;
}
} catch (EventDeliveryException ex) {
logger.info("Correctly failed to send event", ex);
}
sink.stop();
Assert.assertTrue(LifecycleController.waitForOneOf(sink,
LifecycleState.STOP_OR_ERROR, 5000));
server.close();
if (failed) {
Assert.fail("SSL-enabled sink successfully connected to a non-SSL-enabled server, that's wrong.");
}
}
@Test
public void testSslSinkWithNonTrustedCert() throws InterruptedException,
EventDeliveryException, InstantiationException, IllegalAccessException {
setUp();
Event event = EventBuilder.withBody("test event 1", Charsets.UTF_8);
Server server = createSslServer(new MockAvroServer());
server.start();
Context context = new Context();
context.put("hostname", hostname);
context.put("port", String.valueOf(port));
context.put("ssl", String.valueOf(true));
context.put("batch-size", String.valueOf(2));
context.put("connect-timeout", String.valueOf(2000L));
context.put("request-timeout", String.valueOf(3000L));
Configurables.configure(sink, context);
sink.start();
Assert.assertTrue(LifecycleController.waitForOneOf(sink,
LifecycleState.START_OR_ERROR, 5000));
Transaction transaction = channel.getTransaction();
transaction.begin();
for (int i = 0; i < 10; i++) {
channel.put(event);
}
transaction.commit();
transaction.close();
boolean failed = false;
try {
for (int i = 0; i < 5; i++) {
sink.process();
failed = true;
}
} catch (EventDeliveryException ex) {
logger.info("Correctly failed to send event", ex);
}
sink.stop();
Assert.assertTrue(LifecycleController.waitForOneOf(sink,
LifecycleState.STOP_OR_ERROR, 5000));
server.close();
if (failed) {
Assert.fail("SSL-enabled sink successfully connected to a server with an untrusted certificate when it should have failed");
}
}
@Test
public void testRequestWithNoCompression() throws InterruptedException, IOException, EventDeliveryException {
doRequest(false, false, 6);
}
@Test
public void testRequestWithCompressionOnClientAndServerOnLevel0() throws InterruptedException, IOException, EventDeliveryException {
doRequest(true, true, 0);
}
@Test
public void testRequestWithCompressionOnClientAndServerOnLevel1() throws InterruptedException, IOException, EventDeliveryException {
doRequest(true, true, 1);
}
@Test
public void testRequestWithCompressionOnClientAndServerOnLevel6() throws InterruptedException, IOException, EventDeliveryException {
doRequest(true, true, 6);
}
@Test
public void testRequestWithCompressionOnClientAndServerOnLevel9() throws InterruptedException, IOException, EventDeliveryException {
doRequest(true, true, 9);
}
private void doRequest(boolean serverEnableCompression, boolean clientEnableCompression, int compressionLevel) throws InterruptedException, IOException, EventDeliveryException {
if (clientEnableCompression) {
setUp("deflate", compressionLevel);
} else {
setUp("none", compressionLevel);
}
boolean bound = false;
AvroSource source;
Channel sourceChannel;
int selectedPort;
source = new AvroSource();
sourceChannel = new MemoryChannel();
Configurables.configure(sourceChannel, new Context());
List<Channel> channels = new ArrayList<Channel>();
channels.add(sourceChannel);
ChannelSelector rcs = new ReplicatingChannelSelector();
rcs.setChannels(channels);
source.setChannelProcessor(new ChannelProcessor(rcs));
Context context = new Context();
context.put("port", port.toString());
context.put("bind", hostname);
context.put("threads", "50");
if (serverEnableCompression) {
context.put("compression-type", "deflate");
} else {
context.put("compression-type", "none");
}
Configurables.configure(source, context);
source.start();
Assert
.assertTrue("Reached start or error", LifecycleController.waitForOneOf(
source, LifecycleState.START_OR_ERROR));
Assert.assertEquals("Server is started", LifecycleState.START,
source.getLifecycleState());
Event event = EventBuilder.withBody("Hello avro",
Charset.forName("UTF8"));
sink.start();
Transaction sickTransaction = channel.getTransaction();
sickTransaction.begin();
for (int i = 0; i < 10; i++) {
channel.put(event);
}
sickTransaction.commit();
sickTransaction.close();
for (int i = 0; i < 5; i++) {
Sink.Status status = sink.process();
logger.debug("Calling Process " + i + " times:" + status);
Assert.assertEquals(Sink.Status.READY, status);
}
sink.stop();
Transaction sourceTransaction = sourceChannel.getTransaction();
sourceTransaction.begin();
Event sourceEvent = sourceChannel.take();
Assert.assertNotNull(sourceEvent);
Assert.assertEquals("Channel contained our event", "Hello avro",
new String(sourceEvent.getBody()));
sourceTransaction.commit();
sourceTransaction.close();
logger.debug("Round trip event:{}", sourceEvent);
source.stop();
Assert.assertTrue("Reached stop or error",
LifecycleController.waitForOneOf(source, LifecycleState.STOP_OR_ERROR));
Assert.assertEquals("Server is stopped", LifecycleState.STOP,
source.getLifecycleState());
}
private static class MockAvroServer implements AvroSourceProtocol {
@Override
public Status append(AvroFlumeEvent event) throws AvroRemoteException {
logger.debug("Received event:{}", event);
return Status.OK;
}
@Override
public Status appendBatch(List<AvroFlumeEvent> events)
throws AvroRemoteException {
logger.debug("Received event batch:{}", events);
return Status.OK;
}
}
private static class DelayMockAvroServer implements AvroSourceProtocol {
private final AtomicLong delay;
public DelayMockAvroServer(AtomicLong delay) {
this.delay = delay;
}
private void sleep() throws AvroRemoteException {
try {
Thread.sleep(delay.get());
} catch (InterruptedException e) {
throw new AvroRemoteException("Interrupted while sleeping", e);
}
}
@Override
public Status append(AvroFlumeEvent event) throws AvroRemoteException {
logger.debug("Received event:{}; delaying for {}ms", event, delay);
sleep();
return Status.OK;
}
@Override
public Status appendBatch(List<AvroFlumeEvent> events)
throws AvroRemoteException {
logger.debug("Received event batch:{}; delaying for {}ms", events, delay);
sleep();
return Status.OK;
}
}
private Server createSslServer(AvroSourceProtocol protocol)
throws IllegalAccessException, InstantiationException {
Server server = new NettyServer(new SpecificResponder(
AvroSourceProtocol.class, protocol), new InetSocketAddress(hostname, port),
new NioServerSocketChannelFactory(
Executors.newCachedThreadPool(),
Executors.newCachedThreadPool()),
new SSLChannelPipelineFactory(),
null);
return server;
}
/**
* Factory of SSL-enabled server worker channel pipelines
* Copied from Avro's org.apache.avro.ipc.TestNettyServerWithSSL test
*/
private class SSLChannelPipelineFactory
implements ChannelPipelineFactory {
String keystore = "src/test/resources/server.p12";
String keystorePassword = "password";
String keystoreType = "PKCS12";
public SSLChannelPipelineFactory() {
}
public SSLChannelPipelineFactory(String keystore, String keystorePassword, String keystoreType) {
this.keystore = keystore;
this.keystorePassword = keystorePassword;
this.keystoreType = keystoreType;
}
private SSLContext createServerSSLContext() {
try {
KeyStore ks = KeyStore.getInstance(keystoreType);
ks.load(new FileInputStream(keystore), keystorePassword.toCharArray());
// Set up key manager factory to use our key store
KeyManagerFactory kmf = KeyManagerFactory.getInstance(getAlgorithm());
kmf.init(ks, keystorePassword.toCharArray());
SSLContext serverContext = SSLContext.getInstance("TLS");
serverContext.init(kmf.getKeyManagers(), null, null);
return serverContext;
} catch (Exception e) {
throw new Error("Failed to initialize the server-side SSLContext", e);
}
}
private String getAlgorithm() {
String algorithm = Security.getProperty(
"ssl.KeyManagerFactory.algorithm");
if (algorithm == null) {
algorithm = "SunX509";
}
return algorithm;
}
@Override
public ChannelPipeline getPipeline() throws Exception {
ChannelPipeline pipeline = Channels.pipeline();
SSLEngine sslEngine = createServerSSLContext().createSSLEngine();
sslEngine.setUseClientMode(false);
pipeline.addLast("ssl", new SslHandler(sslEngine));
return pipeline;
}
}
}