org.apache.flink.runtime.webmonitor.history

Class HistoryServerStaticFileServerHandler

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

io.netty.channel.SimpleChannelInboundHandler<io.netty.handler.codec.http.router.Routed>

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

All Implemented Interfaces:

io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundHandler

@ChannelHandler.Sharable
public class HistoryServerStaticFileServerHandler
extends io.netty.channel.SimpleChannelInboundHandler<io.netty.handler.codec.http.router.Routed>

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 io.netty.channel.ChannelHandler

io.netty.channel.ChannelHandler.Sharable

Constructor Summary

Constructors

Constructor and Description
HistoryServerStaticFileServerHandler(File rootPath)

Method Summary

Methods

Modifier and Type	Method and Description
void	channelRead0(io.netty.channel.ChannelHandlerContext ctx, io.netty.handler.codec.http.router.Routed routed)
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

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

HistoryServerStaticFileServerHandler

public HistoryServerStaticFileServerHandler(File rootPath)
                                     throws IOException

Throws:

IOException

Method Detail

channelRead0

public void channelRead0(io.netty.channel.ChannelHandlerContext ctx,
                io.netty.handler.codec.http.router.Routed routed)
                  throws Exception

Specified by:

channelRead0 in class io.netty.channel.SimpleChannelInboundHandler<io.netty.handler.codec.http.router.Routed>

Throws:

Exception

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