org.apache.flink.runtime.webmonitor.history

Class HistoryServerStaticFileServerHandler

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.runtime.rest.handler.router.RoutedRequest>

org.apache.flink.runtime.webmonitor.history.HistoryServerStaticFileServerHandler

All Implemented Interfaces:

org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler, org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandler

@ChannelHandler.Sharable
public class HistoryServerStaticFileServerHandler
extends org.apache.flink.shaded.netty4.io.netty.channel.SimpleChannelInboundHandler<org.apache.flink.runtime.rest.handler.router.RoutedRequest>

Simple file server handler used by the HistoryServer that serves requests to web frontend's static files, such as HTML, CSS, JS or JSON files.

This code is based on the "HttpStaticFileServerHandler" from the Netty project's HTTP server example.

This class is a copy of the StaticFileServerHandler. The differences are that the request path is modified to end on ".json" if it does not have a filename extension; when "index.html" is requested we load "index_hs.html" instead to inject the modified HistoryServer WebInterface and that the caching of the "/joboverview" page is prevented.

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 and Description
HistoryServerStaticFileServerHandler(File rootPath)

Method Summary

Modifier and Type	Method and Description
void	channelRead0(org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext ctx, org.apache.flink.runtime.rest.handler.router.RoutedRequest routedRequest)
void	exceptionCaught(org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext ctx, Throwable cause)

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, channelUnregistered, channelWritabilityChanged, 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 Detail

HistoryServerStaticFileServerHandler

public HistoryServerStaticFileServerHandler(File rootPath)
                                     throws IOException

Throws:

IOException

Method Detail

channelRead0

public void channelRead0(org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext ctx,
                         org.apache.flink.runtime.rest.handler.router.RoutedRequest routedRequest)
                  throws Exception

Specified by:

channelRead0 in class org.apache.flink.shaded.netty4.io.netty.channel.SimpleChannelInboundHandler<org.apache.flink.runtime.rest.handler.router.RoutedRequest>

Throws:

Exception

exceptionCaught

public void exceptionCaught(org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext ctx,
                            Throwable cause)

Specified by:

exceptionCaught in interface org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler

Specified by:

exceptionCaught in interface org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandler

Overrides:

exceptionCaught in class org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter