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org.fisco.bcos.sdk.network.ChannelHandler Maven / Gradle / Ivy
/*
* Copyright 2014-2020 [fisco-dev]
*
* 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 org.fisco.bcos.sdk.network;
import io.netty.channel.ChannelHandler.Sharable;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.ssl.SslCloseCompletionEvent;
import io.netty.handler.ssl.SslHandshakeCompletionEvent;
import io.netty.handler.timeout.IdleStateEvent;
import java.util.Objects;
import java.util.concurrent.ExecutorService;
import org.fisco.bcos.sdk.model.Message;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/** Channel handler process inbound message. */
@Sharable
public class ChannelHandler extends SimpleChannelInboundHandler {
private static Logger logger = LoggerFactory.getLogger(ChannelHandler.class);
private MsgHandler msgHandler;
private ConnectionManager connectionManager;
private ExecutorService msgHandleThreadPool;
public void setMsgHandleThreadPool(ExecutorService msgHandleThreadPool) {
this.msgHandleThreadPool = msgHandleThreadPool;
}
public ChannelHandler(ConnectionManager connManager, MsgHandler msgHandler) {
this.msgHandler = msgHandler;
this.connectionManager = connManager;
}
@Override
public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
String host = ((SocketChannel) ctx.channel()).remoteAddress().getAddress().getHostAddress();
Integer port = ((SocketChannel) ctx.channel()).remoteAddress().getPort();
if (evt instanceof IdleStateEvent) {
final IdleStateEvent e = (IdleStateEvent) evt;
switch (e.state()) {
case READER_IDLE:
case WRITER_IDLE:
case ALL_IDLE:
logger.error(
" idle state event:{} connect{}:{} long time Inactive, disconnect",
e.state(),
host,
port);
channelInactive(ctx);
ctx.disconnect();
ctx.close();
break;
default:
break;
}
} else if (evt instanceof SslHandshakeCompletionEvent) {
SslHandshakeCompletionEvent e = (SslHandshakeCompletionEvent) evt;
if (e.isSuccess()) {
logger.info(
" handshake success, host: {}, port: {}, ctx: {}",
host,
port,
System.identityHashCode(ctx));
ChannelHandlerContext oldCtx =
connectionManager.addConnectionContext(host, port, ctx);
msgHandler.onConnect(ctx);
if (Objects.nonNull(oldCtx)) {
oldCtx.close();
oldCtx.disconnect();
logger.warn(
" disconnect old connection, host: {}, port: {}, ctx: {}",
host,
port,
System.identityHashCode(ctx));
}
} else {
logger.error(
" handshake failed, host: {}, port: {}, message: {}, cause: {} ",
host,
port,
e.cause().getMessage(),
e.cause());
ctx.disconnect();
ctx.close();
}
} else if (evt instanceof SslCloseCompletionEvent) {
logger.info(
" ssl close completion event, host: {}, port: {}, ctx: {} ",
host,
port,
System.identityHashCode(ctx));
} else {
logger.info(
" userEventTriggered event, host: {}, port: {}, evt: {}, ctx: {} ",
host,
port,
evt,
System.identityHashCode(ctx));
}
}
@Override
public void channelInactive(ChannelHandlerContext ctx) throws Exception {
try {
// lost the connection, get ip info
String host =
((SocketChannel) ctx.channel()).remoteAddress().getAddress().getHostAddress();
Integer port = ((SocketChannel) ctx.channel()).remoteAddress().getPort();
logger.debug(
" channelInactive, disconnect "
+ host
+ ":"
+ String.valueOf(port)
+ " ,"
+ String.valueOf(ctx.channel().isActive()));
connectionManager.removeConnectionContext(host, port, ctx);
msgHandler.onDisconnect(ctx);
} catch (Exception e) {
logger.error("error ", e);
}
}
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) {
final ChannelHandlerContext ctxF = ctx;
final Message in = (Message) msg;
if (msgHandleThreadPool == null) {
msgHandler.onMessage(ctxF, in);
} else {
msgHandleThreadPool.execute(
new Runnable() {
@Override
public void run() {
msgHandler.onMessage(ctxF, in);
}
});
}
}
@Override
protected void channelRead0(ChannelHandlerContext ctx, Message msg) {
final ChannelHandlerContext ctxF = ctx;
msgHandler.onMessage(ctxF, msg);
}
}
