Package com.linkedin.alpini.netty4.ssl

Class FusedSslHandler

java.lang.Object
io.netty.channel.ChannelHandlerAdapter
io.netty.channel.ChannelInboundHandlerAdapter
io.netty.handler.codec.ByteToMessageDecoder
io.netty.handler.ssl.SslHandler
com.linkedin.alpini.netty4.ssl.FusedSslHandler
All Implemented Interfaces:
io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundHandler, io.netty.channel.ChannelOutboundHandler
public class FusedSslHandler extends io.netty.handler.ssl.SslHandler
An implementation of SslHandler which limits the number of objects held within the pendingUnencryptedWrites queue. This queue is normally very small but when there is some badly behaved code which writes to the channel in a tight loop, we would want to fail further writes so that we don't fall into an OOM situation.

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Class
    Description
    static class 
    FusedSslHandler.OverflowException
     

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

    io.netty.handler.codec.ByteToMessageDecoder.Cumulator

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

    io.netty.channel.ChannelHandler.Sharable

  • Field Summary

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

    COMPOSITE_CUMULATOR, MERGE_CUMULATOR

  • Constructor Summary

    Constructors
    Constructor
    Description
    FusedSslHandler(SSLEngine engine)
     
    FusedSslHandler(SSLEngine engine, Executor delegatedTaskExecutor)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    getOutboundQueueSize()
    The length of the outbound queue.
    int
    getOutboundQueueSizeLimit()
     
    void
    handlerAdded(io.netty.channel.ChannelHandlerContext ctx)
     
    void
    setOutboundQueueSizeLimit(int maxOutboundQueueSize)
     
    void
    write(io.netty.channel.ChannelHandlerContext ctx, Object msg, io.netty.channel.ChannelPromise promise)
     

    Methods inherited from class io.netty.handler.ssl.SslHandler

    applicationProtocol, bind, channelActive, channelInactive, channelReadComplete, close, close, close, closeOutbound, closeOutbound, connect, decode, deregister, disconnect, engine, exceptionCaught, flush, getCloseNotifyFlushTimeoutMillis, getCloseNotifyReadTimeoutMillis, getCloseNotifyTimeoutMillis, getHandshakeTimeoutMillis, handlerRemoved0, handshakeFuture, isEncrypted, read, renegotiate, renegotiate, setCloseNotifyFlushTimeout, setCloseNotifyFlushTimeoutMillis, setCloseNotifyReadTimeout, setCloseNotifyReadTimeoutMillis, setCloseNotifyTimeout, setCloseNotifyTimeoutMillis, setHandshakeTimeout, setHandshakeTimeoutMillis, setWrapDataSize, sslCloseFuture

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

    actualReadableBytes, callDecode, channelRead, decodeLast, discardSomeReadBytes, handlerRemoved, internalBuffer, isSingleDecode, setCumulator, setDiscardAfterReads, setSingleDecode, userEventTriggered

    Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

    channelRegistered, channelUnregistered, channelWritabilityChanged

    Methods inherited from class io.netty.channel.ChannelHandlerAdapter

    ensureNotSharable, 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

    handlerRemoved

  • Constructor Details

    • FusedSslHandler

      public FusedSslHandler(SSLEngine engine)

    • FusedSslHandler

      public FusedSslHandler(SSLEngine engine, Executor delegatedTaskExecutor)

  • Method Details

    • setOutboundQueueSizeLimit

      public void setOutboundQueueSizeLimit(@Nonnegative int maxOutboundQueueSize)

    • getOutboundQueueSizeLimit

      public int getOutboundQueueSizeLimit()

    • getOutboundQueueSize

      public int getOutboundQueueSize()
      The length of the outbound queue. This queue includes both ByteBuf and ChannelPromise objects. This operation is O(1) since the queue is an ArrayDeque.
      Returns:
      number of objects in the queue

    • write

      public void write(io.netty.channel.ChannelHandlerContext ctx, Object msg, io.netty.channel.ChannelPromise promise) throws Exception
      Specified by:
      write in interface io.netty.channel.ChannelOutboundHandler
      Overrides:
      write in class io.netty.handler.ssl.SslHandler
      Throws:
      Exception

    • handlerAdded

      public void handlerAdded(io.netty.channel.ChannelHandlerContext ctx) throws Exception
      Specified by:
      handlerAdded in interface io.netty.channel.ChannelHandler
      Overrides:
      handlerAdded in class io.netty.handler.ssl.SslHandler
      Throws:
      Exception