Package com.linkedin.alpini.netty4.handlers

Class ConnectionLimitHandler

  • All Implemented Interfaces:
    io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundHandler
    Direct Known Subclasses:
    ConnectionControlHandler
    @Sharable
public class ConnectionLimitHandler
extends io.netty.channel.ChannelInboundHandlerAdapter

    • Nested Class Summary

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

        io.netty.channel.ChannelHandler.Sharable

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void channelActive​(io.netty.channel.ChannelHandlerContext ctx)
      Calls ChannelHandlerContext.fireChannelActive() to forward to the next ChannelInboundHandler in the ChannelPipeline.
      void channelInactive​(io.netty.channel.ChannelHandlerContext ctx)
      Calls ChannelHandlerContext.fireChannelInactive() to forward to the next ChannelInboundHandler in the ChannelPipeline.
      int getConnectedCount()
      Return the current number of connections.
      int getConnectionLimit()
      Return the current connection limit.
      void setConnectionLimit​(int limit)
      Set the maximum number of connections.

      • Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

        channelRead, channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught, userEventTriggered

      • Methods inherited from class io.netty.channel.ChannelHandlerAdapter

        ensureNotSharable, 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

        handlerAdded, handlerRemoved

    • Constructor Detail

      • ConnectionLimitHandler

        public ConnectionLimitHandler​(int limit)
        Construct with a preset connection limit.
        Parameters:
        limit - Maximum number of connections.

      • ConnectionLimitHandler

        public ConnectionLimitHandler​(java.util.function.IntSupplier limit)

    • Method Detail

      • getConnectedCount

        public int getConnectedCount()
        Return the current number of connections.
        Returns:
        number of connections.

      • setConnectionLimit

        public void setConnectionLimit​(int limit)
        Set the maximum number of connections.
        Parameters:
        limit - new connection limit.

      • getConnectionLimit

        public int getConnectionLimit()
        Return the current connection limit.
        Returns:
        number of connections.

      • channelActive

        public void channelActive​(io.netty.channel.ChannelHandlerContext ctx)
                   throws java.lang.Exception
        Calls ChannelHandlerContext.fireChannelActive() to forward to the next ChannelInboundHandler in the ChannelPipeline.

        Sub-classes may override this method to change behavior.

        Specified by:
        channelActive in interface io.netty.channel.ChannelInboundHandler
        Overrides:
        channelActive in class io.netty.channel.ChannelInboundHandlerAdapter
        Parameters:
        ctx -
        Throws:
        java.lang.Exception

      • channelInactive

        public void channelInactive​(io.netty.channel.ChannelHandlerContext ctx)
                     throws java.lang.Exception
        Calls ChannelHandlerContext.fireChannelInactive() to forward to the next ChannelInboundHandler in the ChannelPipeline.

        Sub-classes may override this method to change behavior.

        Specified by:
        channelInactive in interface io.netty.channel.ChannelInboundHandler
        Overrides:
        channelInactive in class io.netty.channel.ChannelInboundHandlerAdapter
        Parameters:
        ctx -
        Throws:
        java.lang.Exception