Package org.apache.tinkerpop.gremlin.server.handler

Class HttpGremlinEndpointHandler

java.lang.Object
io.netty.channel.ChannelHandlerAdapter
io.netty.channel.ChannelInboundHandlerAdapter
io.netty.channel.SimpleChannelInboundHandler<RequestMessage>
org.apache.tinkerpop.gremlin.server.handler.HttpGremlinEndpointHandler
All Implemented Interfaces:
io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundHandler
@Sharable public class HttpGremlinEndpointHandler extends io.netty.channel.SimpleChannelInboundHandler<RequestMessage>
Handler that processes RequestMessage. This handler will attempt to execute the query and stream the results back in HTTP chunks to the client.
Author:
Stephen Mallette (http://stephen.genoprime.com)

  • 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
    protected static final Set<String>
    INVALID_PARAMETERS_KEYS
     
    static final long
    WRITE_PAUSE_TIME_MS
    Length of time to pause writes in milliseconds when the high watermark is exceeded.
    static final com.codahale.metrics.Meter
    writePausesMeter
    Tracks the rate of pause to writes when the high watermark is exceeded.

  • Constructor Summary

    Constructors
    Constructor
    Description
    HttpGremlinEndpointHandler(GremlinExecutor gremlinExecutor, GraphManager graphManager, Settings settings, TransactionManager transactionManager)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    channelRead0(io.netty.channel.ChannelHandlerContext ctx, RequestMessage requestMessage)
     
    void
    exceptionCaught(io.netty.channel.ChannelHandlerContext ctx, Throwable cause)
     

    Methods inherited from class io.netty.channel.SimpleChannelInboundHandler

    acceptInboundMessage, channelRead

    Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

    channelActive, channelInactive, channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, 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

  • Field Details

    • WRITE_PAUSE_TIME_MS

      public static final long WRITE_PAUSE_TIME_MS
      Length of time to pause writes in milliseconds when the high watermark is exceeded.
      See Also:

    • writePausesMeter

      public static final com.codahale.metrics.Meter writePausesMeter
      Tracks the rate of pause to writes when the high watermark is exceeded.

    • INVALID_PARAMETERS_KEYS

      protected static final Set<String> INVALID_PARAMETERS_KEYS

  • Constructor Details

  • Method Details

    • channelRead0

      public void channelRead0(io.netty.channel.ChannelHandlerContext ctx, RequestMessage requestMessage)
      Specified by:
      channelRead0 in class io.netty.channel.SimpleChannelInboundHandler<RequestMessage>

    • exceptionCaught

      public void exceptionCaught(io.netty.channel.ChannelHandlerContext ctx, Throwable cause)
      Specified by:
      exceptionCaught in interface io.netty.channel.ChannelHandler
      Specified by:
      exceptionCaught in interface io.netty.channel.ChannelInboundHandler
      Overrides:
      exceptionCaught in class io.netty.channel.ChannelInboundHandlerAdapter