HistoryServerStaticFileServerHandler (Flink : 2.0-SNAPSHOT API)

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<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
```
@Sharable
public class HistoryServerStaticFileServerHandler
extends org.apache.flink.shaded.netty4.io.netty.channel.SimpleChannelInboundHandler<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 Description

HistoryServerStaticFileServerHandler(File rootPath)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`channelRead0(org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext ctx, 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,
                         RoutedRequest routedRequest)
                  throws Exception
```
    Specified by:
    
    channelRead0 in class org.apache.flink.shaded.netty4.io.netty.channel.SimpleChannelInboundHandler<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