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fixed format & import

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agapple
2017-07-05 12:41:11 +08:00
parent 780b4f715b
commit 989a69e7be
9 changed files with 117 additions and 96 deletions
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25
server/src/main/java/com/alibaba/otter/canal/server/netty/CanalServerWithNetty.java
View File

@@ -34,7 +34,10 @@ public class CanalServerWithNetty extends AbstractCanalLifeCycle implements Cana
private int port;
private Channel serverChannel = null;
private ServerBootstrap bootstrap = null;
private ChannelGroup childGroups = null; //socket channel container, used to close sockets explicitly.
private ChannelGroup childGroups = null; // socket channel
// container, used to
// close sockets
// explicitly.
private static class SingletonHolder {
@@ -60,12 +63,10 @@ public class CanalServerWithNetty extends AbstractCanalLifeCycle implements Cana
this.bootstrap = new ServerBootstrap(new NioServerSocketChannelFactory(Executors.newCachedThreadPool(),
Executors.newCachedThreadPool()));
/*
* enable keep-alive mechanism, handle abnormal network connection scenarios on OS level.
* the threshold parameters are depended on OS.
* e.g. On Linux:
* net.ipv4.tcp_keepalive_time = 300
* net.ipv4.tcp_keepalive_probes = 2
* net.ipv4.tcp_keepalive_intvl = 30
* enable keep-alive mechanism, handle abnormal network connection
* scenarios on OS level. the threshold parameters are depended on OS.
* e.g. On Linux: net.ipv4.tcp_keepalive_time = 300
* net.ipv4.tcp_keepalive_probes = 2 net.ipv4.tcp_keepalive_intvl = 30
*/
bootstrap.setOption("child.keepAlive", true);
/*
@@ -79,8 +80,9 @@ public class CanalServerWithNetty extends AbstractCanalLifeCycle implements Cana
public ChannelPipeline getPipeline() throws Exception {
ChannelPipeline pipelines = Channels.pipeline();
pipelines.addLast(FixedHeaderFrameDecoder.class.getName(), new FixedHeaderFrameDecoder());
//support to maintain child socket channel.
pipelines.addLast(HandshakeInitializationHandler.class.getName(), new HandshakeInitializationHandler(childGroups));
// support to maintain child socket channel.
pipelines.addLast(HandshakeInitializationHandler.class.getName(),
new HandshakeInitializationHandler(childGroups));
pipelines.addLast(ClientAuthenticationHandler.class.getName(),
new ClientAuthenticationHandler(embeddedServer));
@@ -105,9 +107,10 @@ public class CanalServerWithNetty extends AbstractCanalLifeCycle implements Cana
this.serverChannel.close().awaitUninterruptibly(1000);
}
//close sockets explicitly to reduce socket channel hung in complicated network environment.
// close sockets explicitly to reduce socket channel hung in complicated
// network environment.
if (this.childGroups != null) {
this.childGroups.close().awaitUninterruptibly(5000);
this.childGroups.close().awaitUninterruptibly(5000);
}
if (this.bootstrap != null) {

6
server/src/main/java/com/alibaba/otter/canal/server/netty/handler/ClientAuthenticationHandler.java
View File

@@ -89,11 +89,13 @@ public class ClientAuthenticationHandler extends SimpleChannelHandler {
if (clientAuth.getNetWriteTimeout() > 0) {
writeTimeout = clientAuth.getNetWriteTimeout();
}
//fix bug: soTimeout parameter's unit from connector is millseconds.
// fix bug: soTimeout parameter's unit from connector is
// millseconds.
IdleStateHandler idleStateHandler = new IdleStateHandler(NettyUtils.hashedWheelTimer,
readTimeout,
writeTimeout,
0, TimeUnit.MILLISECONDS);
0,
TimeUnit.MILLISECONDS);
ctx.getPipeline().addBefore(SessionHandler.class.getName(),
IdleStateHandler.class.getName(),
idleStateHandler);

19
server/src/main/java/com/alibaba/otter/canal/server/netty/handler/HandshakeInitializationHandler.java
View File

@@ -19,20 +19,21 @@ import com.alibaba.otter.canal.server.netty.NettyUtils;
* @version 1.0.0
*/
public class HandshakeInitializationHandler extends SimpleChannelHandler {
//support to maintain socket channel.
private ChannelGroup childGroups;
public HandshakeInitializationHandler(ChannelGroup childGroups) {
this.childGroups = childGroups;
}
// support to maintain socket channel.
private ChannelGroup childGroups;
public HandshakeInitializationHandler(ChannelGroup childGroups){
this.childGroups = childGroups;
}
private static final Logger logger = LoggerFactory.getLogger(HandshakeInitializationHandler.class);
public void channelOpen(ChannelHandlerContext ctx, ChannelStateEvent e) throws Exception {
//add new socket channel in channel container, used to manage sockets.
if(childGroups != null) {
childGroups.add(ctx.getChannel());
}
// add new socket channel in channel container, used to manage sockets.
if (childGroups != null) {
childGroups.add(ctx.getChannel());
}
byte[] body = Packet.newBuilder()
.setType(CanalPacket.PacketType.HANDSHAKE)