Package org.apache.flink.runtime.webmonitor

Class HttpRequestHandler

java.lang.Object
org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerAdapter
org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter
org.apache.flink.shaded.netty4.io.netty.channel.SimpleChannelInboundHandler<org.apache.flink.shaded.netty4.io.netty.handler.codec.http.HttpObject>
org.apache.flink.runtime.webmonitor.HttpRequestHandler
All Implemented Interfaces:
org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler, org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandler
@Sharable public class HttpRequestHandler extends org.apache.flink.shaded.netty4.io.netty.channel.SimpleChannelInboundHandler<org.apache.flink.shaded.netty4.io.netty.handler.codec.http.HttpObject>
Simple code which handles all HTTP requests from the user, and passes them to the Router handler directly if they do not involve file upload requests. If a file is required to be uploaded, it handles the upload, and in the http request to the next handler, passes the name of the file to the next handler.

  • Nested Class Summary

    Nested classes/interfaces inherited from interface org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler

    org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler.Sharable

  • Constructor Summary

    Constructors
    Constructor
    Description
    HttpRequestHandler(File tmpDir)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    channelRead0(org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext ctx, org.apache.flink.shaded.netty4.io.netty.handler.codec.http.HttpObject msg)
     
    void
    channelUnregistered(org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext ctx)
     
    static void
    checkAndCreateUploadDir(File uploadDir)
    Checks whether the given directory exists and is writable.
    static void
    logExternalUploadDirDeletion(File uploadDir)
     

    Methods inherited from class org.apache.flink.shaded.netty4.io.netty.channel.SimpleChannelInboundHandler

    acceptInboundMessage, channelRead

    Methods inherited from class org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter

    channelActive, channelInactive, channelReadComplete, channelRegistered, channelWritabilityChanged, exceptionCaught, userEventTriggered

    Methods inherited from class org.apache.flink.shaded.netty4.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 org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler

    handlerAdded, handlerRemoved

  • Constructor Details

    • HttpRequestHandler

      public HttpRequestHandler(File tmpDir)

  • Method Details

    • channelUnregistered

      public void channelUnregistered(org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext ctx) throws Exception
      Specified by:
      channelUnregistered in interface org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandler
      Overrides:
      channelUnregistered in class org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter
      Throws:
      Exception

    • channelRead0

      public void channelRead0(org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext ctx, org.apache.flink.shaded.netty4.io.netty.handler.codec.http.HttpObject msg)
      Specified by:
      channelRead0 in class org.apache.flink.shaded.netty4.io.netty.channel.SimpleChannelInboundHandler<org.apache.flink.shaded.netty4.io.netty.handler.codec.http.HttpObject>

    • logExternalUploadDirDeletion

      public static void logExternalUploadDirDeletion(File uploadDir)

    • checkAndCreateUploadDir

      public static void checkAndCreateUploadDir(File uploadDir) throws IOException
      Checks whether the given directory exists and is writable. If it doesn't exist this method will attempt to create it.
      Parameters:
      uploadDir - directory to check
      Throws:
      IOException - if the directory does not exist and cannot be created, or if the directory isn't writable