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update transport to allow for extensions

This commit is contained in:
jaymode 2016-08-02 13:45:41 -04:00
parent 227463c356
commit 8498470781
1 changed files with 45 additions and 19 deletions
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64
modules/transport-netty4/src/main/java/org/elasticsearch/transport/netty4/Netty4Transport.java
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@ -199,16 +199,7 @@ public class Netty4Transport extends TcpTransport<Channel> {
bootstrap.channel(NioSocketChannel.class);
}
bootstrap.handler(new ChannelInitializer<SocketChannel>() {
@Override
protected void initChannel(SocketChannel ch) throws Exception {
ch.pipeline().addLast("size", new Netty4SizeHeaderFrameDecoder());
// using a dot as a prefix means this cannot come from any settings parsed
ch.pipeline().addLast("dispatcher", new Netty4MessageChannelHandler(Netty4Transport.this, ".client"));
}
});
bootstrap.handler(getClientChannelInitializer());
bootstrap.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, Math.toIntExact(connectTimeout.millis()));
bootstrap.option(ChannelOption.TCP_NODELAY, TCP_NO_DELAY.get(settings));
@ -292,14 +283,7 @@ public class Netty4Transport extends TcpTransport<Channel> {
serverBootstrap.channel(NioServerSocketChannel.class);
}
serverBootstrap.childHandler(new ChannelInitializer<SocketChannel>() {
@Override
protected void initChannel(SocketChannel ch) throws Exception {
ch.pipeline().addLast("open_channels", Netty4Transport.this.serverOpenChannels);
ch.pipeline().addLast("size", new Netty4SizeHeaderFrameDecoder());
ch.pipeline().addLast("dispatcher", new Netty4MessageChannelHandler(Netty4Transport.this, name));
}
});
serverBootstrap.childHandler(getServerChannelInitializer(name, settings));
serverBootstrap.childOption(ChannelOption.TCP_NODELAY, TCP_NO_DELAY.get(settings));
serverBootstrap.childOption(ChannelOption.SO_KEEPALIVE, TCP_KEEP_ALIVE.get(settings));
@ -326,6 +310,14 @@ public class Netty4Transport extends TcpTransport<Channel> {
serverBootstraps.put(name, serverBootstrap);
}
protected ChannelInitializer<SocketChannel> getServerChannelInitializer(String name, Settings settings) {
return new ServerChannelInitializer(name, settings);
}
protected ChannelInitializer<SocketChannel> getClientChannelInitializer() {
return new ClientChannelInitializer();
}
protected final void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
final Throwable unwrapped = ExceptionsHelper.unwrap(cause, ElasticsearchException.class);
final Throwable t = unwrapped != null ? unwrapped : cause;
@ -348,7 +340,9 @@ public class Netty4Transport extends TcpTransport<Channel> {
Channel[] channels = new Channel[1];
channels[0] = connect.channel();
channels[0].closeFuture().addListener(new ChannelCloseListener(node));
return new NodeChannels(channels, channels, channels, channels, channels);
NodeChannels nodeChannels = new NodeChannels(channels, channels, channels, channels, channels);
onAfterChannelsConnected(nodeChannels);
return nodeChannels;
}
protected NodeChannels connectToChannels(DiscoveryNode node) {
@ -409,6 +403,7 @@ public class Netty4Transport extends TcpTransport<Channel> {
}
throw e;
}
onAfterChannelsConnected(nodeChannels);
success = true;
} finally {
if (success == false) {
@ -422,6 +417,9 @@ public class Netty4Transport extends TcpTransport<Channel> {
return nodeChannels;
}
protected void onAfterChannelsConnected(NodeChannels nodeChannels) {
}
private class ChannelCloseListener implements ChannelFutureListener {
private final DiscoveryNode node;
@ -503,4 +501,32 @@ public class Netty4Transport extends TcpTransport<Channel> {
});
}
protected class ClientChannelInitializer extends ChannelInitializer<SocketChannel> {
@Override
protected void initChannel(SocketChannel ch) throws Exception {
ch.pipeline().addLast("size", new Netty4SizeHeaderFrameDecoder());
// using a dot as a prefix means this cannot come from any settings parsed
ch.pipeline().addLast("dispatcher", new Netty4MessageChannelHandler(Netty4Transport.this, ".client"));
}
}
protected class ServerChannelInitializer extends ChannelInitializer<SocketChannel> {
protected final String name;
protected final Settings settings;
protected ServerChannelInitializer(String name, Settings settings) {
this.name = name;
this.settings = settings;
}
@Override
protected void initChannel(SocketChannel ch) throws Exception {
ch.pipeline().addLast("open_channels", Netty4Transport.this.serverOpenChannels);
ch.pipeline().addLast("size", new Netty4SizeHeaderFrameDecoder());
ch.pipeline().addLast("dispatcher", new Netty4MessageChannelHandler(Netty4Transport.this, name));
}
}
}