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

@ChannelHandler.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 and Description
HttpRequestHandler(File tmpDir)

Method Summary

Modifier and Type	Method and 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 Detail

HttpRequestHandler

public HttpRequestHandler(File tmpDir)

Method Detail

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