Package com.linkedin.alpini.netty4.handlers

Class OutboundByteBufAggregator

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelOutboundHandlerAdapter

com.linkedin.alpini.netty4.handlers.OutboundByteBufAggregator

All Implemented Interfaces:

io.netty.channel.ChannelHandler, io.netty.channel.ChannelOutboundHandler

public final class OutboundByteBufAggregator
extends io.netty.channel.ChannelOutboundHandlerAdapter

SSL uses 16kb application message packets. This handler aims to combine the ByteBuf into packet-sized chunks, This is due to limitations in the SSL implementation which prefers contiguous messages to process so we must break down composite ByteBuf objects. This Aggregator includes a constructor which accepts a allocator to avoid memory fragmentation. Since we always use 16KB buffers.

Nested Class Summary

Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler

io.netty.channel.ChannelHandler.Sharable

Field Summary

Fields

Modifier and Type	Field	Description
static int	SSL_PACKET_SIZE

Constructor Summary

Constructors

Constructor	Description
OutboundByteBufAggregator()
OutboundByteBufAggregator(int packetSize)
OutboundByteBufAggregator(int packetSize, io.netty.buffer.ByteBufAllocator alloc)

Method Summary

Modifier and Type	Method	Description
void	flush(io.netty.channel.ChannelHandlerContext ctx)
void	write(io.netty.channel.ChannelHandlerContext ctx, java.lang.Object msg, io.netty.channel.ChannelPromise promise)

Methods inherited from class io.netty.channel.ChannelOutboundHandlerAdapter

bind, close, connect, deregister, disconnect, read

Methods inherited from class io.netty.channel.ChannelHandlerAdapter

ensureNotSharable, exceptionCaught, handlerAdded, handlerRemoved, isSharable

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.netty.channel.ChannelHandler

exceptionCaught, handlerAdded, handlerRemoved

Field Detail

SSL_PACKET_SIZE

public static final int SSL_PACKET_SIZE

See Also:

Constant Field Values

Constructor Detail

OutboundByteBufAggregator

public OutboundByteBufAggregator()

OutboundByteBufAggregator

public OutboundByteBufAggregator(int packetSize)

OutboundByteBufAggregator

public OutboundByteBufAggregator(int packetSize,
                                 io.netty.buffer.ByteBufAllocator alloc)

Method Detail

write

public void write(io.netty.channel.ChannelHandlerContext ctx,
                  java.lang.Object msg,
                  io.netty.channel.ChannelPromise promise)
           throws java.lang.Exception

Specified by:

write in interface io.netty.channel.ChannelOutboundHandler

Overrides:

write in class io.netty.channel.ChannelOutboundHandlerAdapter

Throws:

java.lang.Exception

flush

public void flush(io.netty.channel.ChannelHandlerContext ctx)
           throws java.lang.Exception

Specified by:

flush in interface io.netty.channel.ChannelOutboundHandler

Overrides:

flush in class io.netty.channel.ChannelOutboundHandlerAdapter

Throws:

java.lang.Exception