java.lang.Object
- io.netty5.channel.ChannelHandlerAdapter
- - io.netty5.handler.codec.ByteToMessageDecoder
  - - io.netty5.handler.ssl.SslClientHelloHandler<T>
    - - io.netty5.handler.ssl.AbstractSniHandler<T>

All Implemented Interfaces:

ChannelHandler

Direct Known Subclasses:

SniHandler
```
public abstract class AbstractSniHandler<T>
extends SslClientHelloHandler<T>
```
Enables SNI (Server Name Indication) extension for server side SSL. For clients support SNI, the server could have multiple host name bound on a single IP. The client will send host name in the handshake data so server could decide which certificate to choose for the host name.

Nested Class Summary
- Nested classes/interfaces inherited from class io.netty5.handler.codec.ByteToMessageDecoder
  ByteToMessageDecoder.Cumulator

Field Summary
- Fields inherited from class io.netty5.handler.codec.ByteToMessageDecoder
  COMPOSITE_CUMULATOR, MERGE_CUMULATOR

Constructor Summary

Constructors
Constructor Description

AbstractSniHandler()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`protected Future<T>`	`lookup(ChannelHandlerContext ctx, Buffer clientHello)`	Kicks off a lookup for the given `ClientHello` and returns a `Future` which in turn will notify the `SslClientHelloHandler.onLookupComplete(ChannelHandlerContext, Future)` on completion.
`protected abstract Future<T>`	`lookup(ChannelHandlerContext ctx, String hostname)`	Kicks off a lookup for the given SNI value and returns a `Future` which in turn will notify the `onLookupComplete(ChannelHandlerContext, String, Future)` on completion.
`protected void`	`onLookupComplete(ChannelHandlerContext ctx, Future<? extends T> future)`	Called upon completion of the `SslClientHelloHandler.lookup(ChannelHandlerContext, Buffer)` `Future`.
`protected abstract void`	`onLookupComplete(ChannelHandlerContext ctx, String hostname, Future<? extends T> future)`	Called upon completion of the `lookup(ChannelHandlerContext, String)` `Future`.

Methods inherited from class io.netty5.handler.ssl.SslClientHelloHandler
decode, handlerRemoved0, read

Methods inherited from class io.netty5.handler.codec.ByteToMessageDecoder
actualReadableBytes, channelInactive, channelRead, channelReadComplete, channelShutdown, decodeLast, discardSomeReadBytes, handlerAdded, handlerAdded0, handlerRemoved, internalBuffer, isSharable, isSingleDecode, setSingleDecode

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.netty5.channel.ChannelHandler
bind, channelActive, channelExceptionCaught, channelInboundEvent, channelRegistered, channelUnregistered, channelWritabilityChanged, close, connect, deregister, disconnect, flush, pendingOutboundBytes, register, sendOutboundEvent, shutdown, write

Constructor Detail
- AbstractSniHandler
```
public AbstractSniHandler()
```

Method Detail

lookup

protected Future<T> lookup(ChannelHandlerContext ctx,
                           Buffer clientHello)
                    throws Exception

Description copied from class: SslClientHelloHandler

Kicks off a lookup for the given ClientHello and returns a Future which in turn will notify the SslClientHelloHandler.onLookupComplete(ChannelHandlerContext, Future) on completion. See https://tools.ietf.org/html/rfc5246#section-7.4.1.2

 struct {
    ProtocolVersion client_version;
    Random random;
    SessionID session_id;
    CipherSuite cipher_suites<2..2^16-2>;
    CompressionMethod compression_methods<1..2^8-1>;
    select (extensions_present) {
        case false:
            struct {};
        case true:
            Extension extensions<0..2^16-1>;
    };
 } ClientHello;

Specified by:: lookup in class SslClientHelloHandler<T>
Throws:: Exception
See Also:: SslClientHelloHandler.onLookupComplete(ChannelHandlerContext, Future)

onLookupComplete
```
protected void onLookupComplete(ChannelHandlerContext ctx,
                                Future<? extends T> future)
                         throws Exception
```
Description copied from class: SslClientHelloHandler

Called upon completion of the SslClientHelloHandler.lookup(ChannelHandlerContext, Buffer) Future.

Specified by:

onLookupComplete in class SslClientHelloHandler<T>

Throws:

Exception

See Also:

SslClientHelloHandler.lookup(ChannelHandlerContext, Buffer)

lookup
```
protected abstract Future<T> lookup(ChannelHandlerContext ctx,
                                    String hostname)
                             throws Exception
```
Kicks off a lookup for the given SNI value and returns a Future which in turn will notify the onLookupComplete(ChannelHandlerContext, String, Future) on completion.

Throws:

Exception

See Also:

onLookupComplete(ChannelHandlerContext, String, Future)

onLookupComplete

protected abstract void onLookupComplete(ChannelHandlerContext ctx,
                                         String hostname,
                                         Future<? extends T> future)
                                  throws Exception

Called upon completion of the lookup(ChannelHandlerContext, String) Future.

Throws:: Exception
See Also:: lookup(ChannelHandlerContext, String)

Class AbstractSniHandler<T>

Nested Class Summary

Nested classes/interfaces inherited from class io.netty5.handler.codec.ByteToMessageDecoder

Field Summary

Fields inherited from class io.netty5.handler.codec.ByteToMessageDecoder

Constructor Summary

Method Summary

Methods inherited from class io.netty5.handler.ssl.SslClientHelloHandler

Methods inherited from class io.netty5.handler.codec.ByteToMessageDecoder

Methods inherited from class java.lang.Object

Methods inherited from interface io.netty5.channel.ChannelHandler

Constructor Detail

AbstractSniHandler

Method Detail

lookup

onLookupComplete

lookup

onLookupComplete