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Aerospike Java client interface to Aerospike database server
/*
* Copyright 2012-2020 Aerospike, Inc.
*
* Portions may be licensed to Aerospike, Inc. under one or more contributor
* license agreements WHICH ARE COMPATIBLE WITH THE APACHE LICENSE, VERSION 2.0.
*
* 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 com.aerospike.client.async;
import java.io.IOException;
import java.security.cert.X509Certificate;
import java.util.concurrent.TimeUnit;
import javax.net.ssl.SSLSession;
import com.aerospike.client.AerospikeException;
import com.aerospike.client.Log;
import com.aerospike.client.ResultCode;
import com.aerospike.client.admin.AdminCommand;
import com.aerospike.client.async.HashedWheelTimer.HashedWheelTimeout;
import com.aerospike.client.cluster.Cluster;
import com.aerospike.client.cluster.Connection;
import com.aerospike.client.cluster.Node;
import com.aerospike.client.command.Buffer;
import com.aerospike.client.command.Command;
import com.aerospike.client.policy.TlsPolicy;
import com.aerospike.client.util.Util;
import io.netty.bootstrap.Bootstrap;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.PooledByteBufAllocator;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.epoll.EpollSocketChannel;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.ssl.SslHandler;
import io.netty.handler.ssl.SslHandshakeCompletionEvent;
/**
* Asynchronous command handler using netty.
*/
public final class NettyCommand implements Runnable, TimerTask {
final NettyEventLoop eventLoop;
final Cluster cluster;
final AsyncCommand command;
final EventState eventState;
Node node;
NettyConnection conn;
HashedWheelTimeout timeoutTask;
long totalDeadline;
int state;
int iteration;
int commandSentCounter;
final boolean hasTotalTimeout;
boolean usingSocketTimeout;
boolean eventReceived;
boolean connectInProgress;
public NettyCommand(NettyEventLoop loop, Cluster cluster, AsyncCommand command) {
this.eventLoop = loop;
this.cluster = cluster;
this.eventState = cluster.eventState[loop.index];
this.command = command;
command.bufferQueue = loop.bufferQueue;
hasTotalTimeout = command.totalTimeout > 0;
if (eventLoop.eventLoop.inEventLoop() && eventState.errors < 5) {
// We are already in event loop thread, so start processing.
run();
}
else {
if (hasTotalTimeout) {
totalDeadline = System.nanoTime() + TimeUnit.MILLISECONDS.toNanos(command.totalTimeout);
}
state = AsyncCommand.REGISTERED;
eventLoop.execute(this);
}
}
// Batch retry constructor.
public NettyCommand(NettyCommand other, AsyncCommand command, long deadline) {
this.eventLoop = other.eventLoop;
this.cluster = other.cluster;
this.command = command;
this.eventState = other.eventState;
this.totalDeadline = other.totalDeadline;
this.iteration = other.iteration;
this.commandSentCounter = other.commandSentCounter;
this.hasTotalTimeout = other.hasTotalTimeout;
this.usingSocketTimeout = other.usingSocketTimeout;
command.bufferQueue = eventLoop.bufferQueue;
// We are already in event loop thread, so start processing now.
if (eventState.pending++ == -1) {
eventState.pending = -1;
eventState.errors++;
state = AsyncCommand.COMPLETE;
notifyFailure(new AerospikeException("Cluster has been closed"));
return;
}
if (deadline > 0) {
timeoutTask = eventLoop.timer.addTimeout(this, deadline);
}
if (eventLoop.maxCommandsInProcess > 0) {
// Delay queue takes precedence over new commands.
eventLoop.executeFromDelayQueue();
// Handle new command.
if (eventLoop.pending >= eventLoop.maxCommandsInProcess) {
// Pending queue full. Append new command to delay queue.
if (eventLoop.maxCommandsInQueue > 0 && eventLoop.delayQueue.size() >= eventLoop.maxCommandsInQueue) {
queueError(new AerospikeException.AsyncQueueFull());
return;
}
eventLoop.delayQueue.addLast(this);
state = AsyncCommand.DELAY_QUEUE;
return;
}
}
eventLoop.pending++;
executeCommand();
}
@Override
public void run() {
if (eventState.pending++ == -1) {
eventState.pending = -1;
eventState.errors++;
state = AsyncCommand.COMPLETE;
notifyFailure(new AerospikeException("Cluster has been closed"));
return;
}
long currentTime = 0;
if (hasTotalTimeout) {
currentTime = System.nanoTime();
if (state == AsyncCommand.REGISTERED) {
// Command was queued to event loop thread.
if (currentTime >= totalDeadline) {
// Command already timed out.
queueError(new AerospikeException.Timeout(command.policy, true));
return;
}
}
else {
totalDeadline = currentTime + TimeUnit.MILLISECONDS.toNanos(command.totalTimeout);
}
}
if (eventLoop.maxCommandsInProcess > 0) {
// Delay queue takes precedence over new commands.
eventLoop.executeFromDelayQueue();
// Handle new command.
if (eventLoop.pending >= eventLoop.maxCommandsInProcess) {
// Pending queue full. Append new command to delay queue.
if (eventLoop.maxCommandsInQueue > 0 && eventLoop.delayQueue.size() >= eventLoop.maxCommandsInQueue) {
queueError(new AerospikeException.AsyncQueueFull());
return;
}
eventLoop.delayQueue.addLast(this);
if (hasTotalTimeout) {
timeoutTask = eventLoop.timer.addTimeout(this, totalDeadline);
}
state = AsyncCommand.DELAY_QUEUE;
return;
}
}
if (hasTotalTimeout) {
long deadline;
if (command.socketTimeout > 0) {
deadline = currentTime + TimeUnit.MILLISECONDS.toNanos(command.socketTimeout);
if (deadline < totalDeadline) {
usingSocketTimeout = true;
}
else {
deadline = totalDeadline;
}
}
else {
deadline = totalDeadline;
}
timeoutTask = eventLoop.timer.addTimeout(this, deadline);
}
else if (command.socketTimeout > 0) {
usingSocketTimeout = true;
timeoutTask = eventLoop.timer.addTimeout(this, System.nanoTime() + TimeUnit.MILLISECONDS.toNanos(command.socketTimeout));
}
eventLoop.pending++;
executeCommand();
}
private final void queueError(AerospikeException ae) {
eventState.pending--;
eventState.errors++;
state = AsyncCommand.COMPLETE;
notifyFailure(ae);
}
final void executeCommandFromDelayQueue() {
if (command.socketTimeout > 0) {
long socketDeadline = System.nanoTime() + TimeUnit.MILLISECONDS.toNanos(command.socketTimeout);
if (hasTotalTimeout) {
if (socketDeadline < totalDeadline) {
// Transition from total timer to socket timer.
timeoutTask.cancel();
usingSocketTimeout = true;
eventLoop.timer.restoreTimeout(timeoutTask, socketDeadline);
}
}
else {
usingSocketTimeout = true;
timeoutTask = eventLoop.timer.addTimeout(this, socketDeadline);
}
}
eventLoop.pending++;
executeCommand();
}
private void executeCommand() {
state = AsyncCommand.CONNECT;
iteration++;
try {
node = command.getNode(cluster);
conn = (NettyConnection)node.getAsyncConnection(eventState.index, null);
if (conn != null) {
InboundHandler handler = (InboundHandler)conn.channel.pipeline().last();
handler.command = this;
writeCommand();
return;
}
connectInProgress = true;
final int itr = iteration;
final InboundHandler handler = new InboundHandler();
handler.command = this;
Bootstrap b = new Bootstrap();
b.group(eventLoop.eventLoop);
if (eventLoop.parent.isEpoll) {
b.channel(EpollSocketChannel.class);
}
else {
b.channel(NioSocketChannel.class);
}
b.option(ChannelOption.TCP_NODELAY, true);
b.option(ChannelOption.AUTO_READ, false);
b.handler(new ChannelInitializer() {
@Override
public void initChannel(SocketChannel ch) {
if (! (state == AsyncCommand.CONNECT && itr == iteration)) {
// State mismatch. Timeout probably occurred.
// Connection count has already been decremented.
// Just close channel.
ch.close();
connectInProgress = false;
return;
}
conn = new NettyConnection(ch);
node.connectionOpened(eventLoop.index);
connectInProgress = false;
ChannelPipeline p = ch.pipeline();
if (eventLoop.parent.sslContext != null && !eventLoop.parent.tlsPolicy.forLoginOnly) {
state = AsyncCommand.TLS_HANDSHAKE;
//InetSocketAddress address = node.getAddress();
//p.addLast(eventLoop.parent.sslContext.newHandler(ch.alloc(), address.getHostString(), address.getPort()));
p.addLast(eventLoop.parent.sslContext.newHandler(ch.alloc()));
}
p.addLast(handler);
}
});
b.connect(node.getAddress());
eventState.errors = 0;
}
catch (AerospikeException.Connection ac) {
eventState.errors++;
onNetworkError(ac);
}
catch (Exception e) {
// Fail without retry on unknown errors.
eventState.errors++;
fail();
notifyFailure(new AerospikeException(e));
eventLoop.tryDelayQueue();
}
}
private void channelActive() {
if (cluster.getUser() != null) {
writeAuth();
}
else {
writeCommand();
}
}
private void writeAuth() {
state = AsyncCommand.AUTH_WRITE;
command.initBuffer();
AdminCommand admin = new AdminCommand(command.dataBuffer);
command.dataOffset = admin.setAuthenticate(cluster, node.getSessionToken());
writeByteBuffer();
}
private void writeCommand() {
state = AsyncCommand.COMMAND_WRITE;
command.writeBuffer();
writeByteBuffer();
}
private void writeByteBuffer() {
ByteBuf byteBuffer = PooledByteBufAllocator.DEFAULT.directBuffer(command.dataOffset);
byteBuffer.clear();
byteBuffer.writeBytes(command.dataBuffer, 0, command.dataOffset);
ChannelFuture cf = conn.channel.writeAndFlush(byteBuffer);
cf.addListener(new ChannelFutureListener() {
@Override
public void operationComplete(ChannelFuture future) {
if (state == AsyncCommand.COMMAND_WRITE) {
state = AsyncCommand.COMMAND_READ_HEADER;
commandSentCounter++;
}
else {
state = AsyncCommand.AUTH_READ_HEADER;
}
command.dataOffset = 0;
// Socket timeout applies only to read events.
// Reset event received because we are switching from a write to a read state.
// This handles case where write succeeds and read event does not occur. If we didn't reset,
// the socket timeout would go through two iterations (double the timeout) because a write
// event occurred in the first timeout period.
eventReceived = false;
conn.channel.config().setAutoRead(true);
}
});
}
private void read(ByteBuf byteBuffer) {
eventReceived = true;
try {
switch (state) {
case AsyncCommand.AUTH_READ_HEADER:
readAuthHeader(byteBuffer);
break;
case AsyncCommand.AUTH_READ_BODY:
readAuthBody(byteBuffer);
break;
case AsyncCommand.COMMAND_READ_HEADER:
if (command.isSingle) {
readSingleHeader(byteBuffer);
}
else {
readMultiHeader(byteBuffer);
}
break;
case AsyncCommand.COMMAND_READ_BODY:
if (command.isSingle) {
readSingleBody(byteBuffer);
}
else {
readMultiBody(byteBuffer);
}
break;
}
}
finally {
byteBuffer.release();
}
}
private void readAuthHeader(ByteBuf byteBuffer) {
int avail = byteBuffer.readableBytes();
int offset = command.dataOffset + avail;
if (offset < 8) {
byteBuffer.readBytes(command.dataBuffer, command.dataOffset, avail);
command.dataOffset = offset;
return;
}
// Process authentication header.
byteBuffer.readBytes(command.dataBuffer, command.dataOffset, 8 - command.dataOffset);
command.receiveSize = ((int)(Buffer.bytesToLong(command.dataBuffer, 0) & 0xFFFFFFFFFFFFL));
if (command.receiveSize < 2 || command.receiveSize > command.dataBuffer.length) {
throw new AerospikeException.Parse("Invalid auth receive size: " + command.receiveSize);
}
state = AsyncCommand.AUTH_READ_BODY;
offset -= 8;
command.dataOffset = offset;
if (offset > 0) {
byteBuffer.readBytes(command.dataBuffer, 0, offset);
if (offset >= command.receiveSize) {
parseAuthBody();
}
}
}
private void readAuthBody(ByteBuf byteBuffer) {
int avail = byteBuffer.readableBytes();
int offset = command.dataOffset + avail;
if (offset < command.receiveSize) {
byteBuffer.readBytes(command.dataBuffer, command.dataOffset, avail);
command.dataOffset = offset;
return;
}
parseAuthBody();
}
private void parseAuthBody() {
int resultCode = command.dataBuffer[1] & 0xFF;
if (resultCode != 0 && resultCode != ResultCode.SECURITY_NOT_ENABLED) {
// Authentication failed. Session token probably expired.
// Signal tend thread to perform node login, so future
// transactions do not fail.
node.signalLogin();
// This is a rare event because the client tracks session
// expiration and will relogin before session expiration.
// Do not try to login on same socket because login can take
// a long time and thousands of simultaneous logins could
// overwhelm server.
throw new AerospikeException(resultCode);
}
writeCommand();
}
private void readSingleHeader(ByteBuf byteBuffer) {
int readableBytes = byteBuffer.readableBytes();
int dataSize = command.dataOffset + readableBytes;
if (dataSize < 8) {
byteBuffer.readBytes(command.dataBuffer, command.dataOffset, readableBytes);
command.dataOffset = dataSize;
return;
}
dataSize = 8 - command.dataOffset;
byteBuffer.readBytes(command.dataBuffer, command.dataOffset, dataSize);
readableBytes -= dataSize;
int receiveSize = command.parseProto(Buffer.bytesToLong(command.dataBuffer, 0));
command.sizeBuffer(receiveSize);
state = AsyncCommand.COMMAND_READ_BODY;
dataSize = (readableBytes >= receiveSize)? receiveSize : readableBytes;
byteBuffer.readBytes(command.dataBuffer, 0, dataSize);
command.dataOffset = dataSize;
if (command.dataOffset >= receiveSize) {
parseSingleBody();
}
}
private void readSingleBody(ByteBuf byteBuffer) {
int readableBytes = byteBuffer.readableBytes();
int needBytes = command.receiveSize - command.dataOffset;
int dataSize = (readableBytes >= needBytes)? needBytes : readableBytes;
byteBuffer.readBytes(command.dataBuffer, command.dataOffset, dataSize);
command.dataOffset += dataSize;
if (command.dataOffset >= command.receiveSize) {
parseSingleBody();
}
}
private void parseSingleBody() {
conn.updateLastUsed();
command.parseCommandResult();
finish();
}
private final void readMultiHeader(ByteBuf byteBuffer) {
if (! command.valid) {
throw new AerospikeException.QueryTerminated();
}
int readableBytes = byteBuffer.readableBytes();
int dataSize;
do {
dataSize = command.dataOffset + readableBytes;
if (dataSize < 8) {
byteBuffer.readBytes(command.dataBuffer, command.dataOffset, readableBytes);
command.dataOffset = dataSize;
return;
}
dataSize = 8 - command.dataOffset;
byteBuffer.readBytes(command.dataBuffer, command.dataOffset, dataSize);
readableBytes -= dataSize;
int receiveSize = command.parseProto(Buffer.bytesToLong(command.dataBuffer, 0));
if (receiveSize == 0) {
// Read next header.
command.dataOffset = 0;
continue;
}
command.sizeBuffer(receiveSize);
state = AsyncCommand.COMMAND_READ_BODY;
if (readableBytes <= 0) {
return;
}
dataSize = (readableBytes >= receiveSize)? receiveSize : readableBytes;
byteBuffer.readBytes(command.dataBuffer, 0, dataSize);
readableBytes -= dataSize;
command.dataOffset = dataSize;
if (command.dataOffset < receiveSize) {
return;
}
conn.updateLastUsed();
if (command.parseCommandResult()) {
finish();
return;
}
// Prepare for next group.
state = AsyncCommand.COMMAND_READ_HEADER;
command.dataOffset = 0;
} while (true);
}
private final void readMultiBody(ByteBuf byteBuffer) {
if (! command.valid) {
throw new AerospikeException.QueryTerminated();
}
int readableBytes = byteBuffer.readableBytes();
int needBytes = command.receiveSize - command.dataOffset;
int dataSize = (readableBytes >= needBytes)? needBytes : readableBytes;
byteBuffer.readBytes(command.dataBuffer, command.dataOffset, dataSize);
command.dataOffset += dataSize;
if (command.dataOffset < command.receiveSize) {
return;
}
conn.updateLastUsed();
if (command.parseCommandResult()) {
finish();
return;
}
// Prepare for next group.
state = AsyncCommand.COMMAND_READ_HEADER;
command.dataOffset = 0;
readMultiHeader(byteBuffer);
}
@Override
public final void timeout() {
if (state == AsyncCommand.COMPLETE) {
return;
}
long currentTime = 0;
if (hasTotalTimeout) {
// Check total timeout.
currentTime = System.nanoTime();
if (currentTime >= totalDeadline) {
totalTimeout();
return;
}
if (usingSocketTimeout) {
// Socket idle timeout is in effect.
if (eventReceived) {
// Event(s) received within socket timeout period.
eventReceived = false;
long deadline = currentTime + TimeUnit.MILLISECONDS.toNanos(command.socketTimeout);
if (deadline >= totalDeadline) {
// Transition to total timeout.
deadline = totalDeadline;
usingSocketTimeout = false;
}
eventLoop.timer.restoreTimeout(timeoutTask, deadline);
return;
}
}
}
else {
// Check socket timeout.
if (eventReceived) {
// Event(s) received within socket timeout period.
eventReceived = false;
long socketDeadline = System.nanoTime() + TimeUnit.MILLISECONDS.toNanos(command.socketTimeout);
eventLoop.timer.restoreTimeout(timeoutTask, socketDeadline);
return;
}
}
// Check maxRetries.
if (iteration > command.maxRetries) {
totalTimeout();
return;
}
// Recover connection when possible.
recoverConnection();
// Attempt retry.
long timeout = TimeUnit.MILLISECONDS.toNanos(command.socketTimeout);
if (hasTotalTimeout) {
long remaining = totalDeadline - currentTime;
if (remaining <= timeout) {
// Transition to total timeout.
timeout = remaining;
usingSocketTimeout = false;
}
}
else {
currentTime = System.nanoTime();
}
long deadline = currentTime + timeout;
if (! command.prepareRetry(true)) {
// Batch may be retried in separate commands.
if (command.retryBatch(this, deadline)) {
// Batch retried in separate commands. Complete this command.
timeoutTask = null;
close();
return;
}
}
eventLoop.timer.restoreTimeout(timeoutTask, deadline);
executeCommand();
}
private final void totalTimeout() {
AerospikeException ae = new AerospikeException.Timeout(command.policy, true);
if (state == AsyncCommand.DELAY_QUEUE) {
// Command timed out in delay queue.
closeFromDelayQueue();
notifyFailure(ae);
return;
}
// Recover connection when possible.
recoverConnection();
// Perform timeout.
timeoutTask = null;
close();
notifyFailure(ae);
eventLoop.tryDelayQueue();
}
private final void recoverConnection() {
if (command.policy.timeoutDelay > 0 && (
state == AsyncCommand.COMMAND_READ_HEADER || state == AsyncCommand.COMMAND_READ_BODY ||
state == AsyncCommand.AUTH_READ_HEADER || state == AsyncCommand.AUTH_READ_BODY)) {
try {
// Create new command to drain connection.
new NettyRecover(this);
// NettyRecover took ownership of dataBuffer.
command.dataBuffer = null;
}
catch (Exception e) {
Log.warn("NettyRecover failed: " + Util.getErrorMessage(e));
closeConnection();
}
}
else {
closeConnection();
}
}
protected final void finish() {
complete();
try {
command.onSuccess();
}
catch (Exception e) {
Log.error("onSuccess() error: " + Util.getErrorMessage(e));
}
eventLoop.tryDelayQueue();
}
protected final void onNetworkError(AerospikeException ae) {
if (state == AsyncCommand.COMPLETE) {
return;
}
closeConnection();
retry(ae, true);
}
protected final void onServerTimeout() {
if (state == AsyncCommand.COMPLETE) {
return;
}
putConnection();
AerospikeException ae = new AerospikeException.Timeout(command.policy, false);
retry(ae, false);
}
private final void retry(final AerospikeException ae, boolean queueCommand) {
// Check maxRetries.
if (iteration > command.maxRetries) {
// Fail command.
close();
notifyFailure(ae);
eventLoop.tryDelayQueue();
return;
}
long currentTime = 0;
// Check total timeout.
if (hasTotalTimeout) {
currentTime = System.nanoTime();
if (currentTime >= totalDeadline) {
// Fail command.
close();
notifyFailure(ae);
eventLoop.tryDelayQueue();
return;
}
}
long deadline = totalDeadline;
// Attempt retry.
if (usingSocketTimeout) {
// Socket timeout in effect.
timeoutTask.cancel();
long timeout = TimeUnit.MILLISECONDS.toNanos(command.socketTimeout);
if (hasTotalTimeout) {
long remaining = totalDeadline - currentTime;
if (remaining <= timeout) {
// Transition to total timeout.
timeout = remaining;
usingSocketTimeout = false;
}
}
else {
currentTime = System.nanoTime();
}
deadline = currentTime + timeout;
}
if (queueCommand) {
// Retry command at the end of the queue so other commands have a
// chance to run first.
final long d = deadline;
eventLoop.execute(new Runnable() {
@Override
public void run() {
if (state == AsyncCommand.COMPLETE) {
return;
}
retry(ae, d);
}
});
}
else {
// Retry command immediately.
retry(ae, deadline);
}
}
private final void retry(AerospikeException ae, long deadline) {
if (! command.prepareRetry(ae.getResultCode() != ResultCode.SERVER_NOT_AVAILABLE)) {
// Batch may be retried in separate commands.
if (command.retryBatch(this, deadline)) {
// Batch retried in separate commands. Complete this command.
close();
return;
}
}
if (usingSocketTimeout) {
eventLoop.timer.restoreTimeout(timeoutTask, deadline);
}
executeCommand();
}
protected final void onApplicationError(AerospikeException ae) {
if (state == AsyncCommand.COMPLETE) {
return;
}
if (ae.keepConnection()) {
complete();
}
else {
// Close socket to flush out possible garbage.
fail();
}
notifyFailure(ae);
eventLoop.tryDelayQueue();
}
private final void notifyFailure(AerospikeException ae) {
try {
ae.setNode(node);
ae.setPolicy(command.policy);
ae.setIteration(iteration);
ae.setInDoubt(command.isWrite(), commandSentCounter);
if (Log.debugEnabled()) {
Command.LogPolicy(command.policy);
}
command.onFailure(ae);
}
catch (Exception e) {
Log.error("onFailure() error: " + Util.getErrorMessage(e));
}
}
private final void complete() {
putConnection();
close();
}
private final void putConnection() {
conn.channel.config().setAutoRead(false);
InboundHandler handler = (InboundHandler)conn.channel.pipeline().last();
handler.command = null;
node.putAsyncConnection(conn, eventState.index);
}
private final void fail() {
closeConnection();
close();
}
private final void closeConnection() {
if (conn != null) {
node.closeAsyncConnection(conn, eventState.index);
conn = null;
}
else if (connectInProgress) {
node.decrAsyncConnection(eventState.index);
connectInProgress = false;
}
}
private final void closeFromDelayQueue() {
command.putBuffer();
state = AsyncCommand.COMPLETE;
eventState.pending--;
}
private final void close() {
if (timeoutTask != null) {
timeoutTask.cancel();
}
command.putBuffer();
state = AsyncCommand.COMPLETE;
eventState.pending--;
eventLoop.pending--;
}
static class InboundHandler extends ChannelInboundHandlerAdapter {
NettyCommand command;
@Override
public void channelActive(ChannelHandlerContext ctx) {
// Mark connection ready in regular (non TLS) mode.
// Otherwise, wait for TLS handshake to complete.
if (command.state == AsyncCommand.CONNECT) {
command.channelActive();
}
}
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) {
command.read((ByteBuf)msg);
}
@Override
public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
if (! (evt instanceof SslHandshakeCompletionEvent)) {
return;
}
Throwable cause = ((SslHandshakeCompletionEvent)evt).cause();
if (cause != null) {
throw new AerospikeException("TLS connect failed: " + cause.getMessage(), cause);
}
TlsPolicy tlsPolicy = command.eventLoop.parent.tlsPolicy;
String tlsName = command.node.getHost().tlsName;
SSLSession session = ((SslHandler)ctx.pipeline().first()).engine().getSession();
X509Certificate cert = (X509Certificate)session.getPeerCertificates()[0];
Connection.validateServerCertificate(tlsPolicy, tlsName, cert);
if (command.state == AsyncCommand.TLS_HANDSHAKE) {
command.channelActive();
}
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
if (command == null) {
Log.error("Connection exception: " + Util.getErrorMessage(cause));
return;
}
if (cause instanceof AerospikeException.Connection) {
command.onNetworkError((AerospikeException.Connection)cause);
}
else if (cause instanceof AerospikeException) {
AerospikeException ae = (AerospikeException)cause;
if (ae.getResultCode() == ResultCode.TIMEOUT) {
// Go through retry logic on server timeout
command.onServerTimeout();
}
else {
command.onApplicationError(ae);
}
}
else if (cause instanceof IOException) {
command.onNetworkError(new AerospikeException(cause));
}
else {
command.onApplicationError(new AerospikeException(cause));
}
}
}
}
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