Package org.apache.hadoop.hdfs.server.datanode.web.webhdfs

Class WebHdfsHandler

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

io.netty.channel.SimpleChannelInboundHandler<io.netty.handler.codec.http.HttpRequest>

org.apache.hadoop.hdfs.server.datanode.web.webhdfs.WebHdfsHandler

All Implemented Interfaces:

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

public class WebHdfsHandler
extends io.netty.channel.SimpleChannelInboundHandler<io.netty.handler.codec.http.HttpRequest>

Nested Class Summary

Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler

io.netty.channel.ChannelHandler.Sharable

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	APPLICATION_JSON_UTF8
static java.lang.String	APPLICATION_OCTET_STREAM
static java.util.EnumSet<org.apache.hadoop.fs.CreateFlag>	EMPTY_CREATE_FLAG
static java.lang.String	WEBHDFS_PREFIX
static int	WEBHDFS_PREFIX_LENGTH

Constructor Summary

Constructors

Constructor	Description
WebHdfsHandler(org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.conf.Configuration confForCreate)

Method Summary

Modifier and Type	Method	Description
void	channelRead0(io.netty.channel.ChannelHandlerContext ctx, io.netty.handler.codec.http.HttpRequest req)
void	exceptionCaught(io.netty.channel.ChannelHandlerContext ctx, java.lang.Throwable cause)
void	handle(io.netty.channel.ChannelHandlerContext ctx, io.netty.handler.codec.http.HttpRequest req)

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

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 io.netty.channel.ChannelHandler

handlerAdded, handlerRemoved

Field Detail

WEBHDFS_PREFIX

public static final java.lang.String WEBHDFS_PREFIX

See Also:

Constant Field Values

WEBHDFS_PREFIX_LENGTH

public static final int WEBHDFS_PREFIX_LENGTH

APPLICATION_OCTET_STREAM

public static final java.lang.String APPLICATION_OCTET_STREAM

See Also:

Constant Field Values

APPLICATION_JSON_UTF8

public static final java.lang.String APPLICATION_JSON_UTF8

See Also:

Constant Field Values

EMPTY_CREATE_FLAG

public static final java.util.EnumSet<org.apache.hadoop.fs.CreateFlag> EMPTY_CREATE_FLAG

Constructor Detail

WebHdfsHandler

public WebHdfsHandler(org.apache.hadoop.conf.Configuration conf,
                      org.apache.hadoop.conf.Configuration confForCreate)
               throws java.io.IOException

Throws:

java.io.IOException

Method Detail

channelRead0

public void channelRead0(io.netty.channel.ChannelHandlerContext ctx,
                         io.netty.handler.codec.http.HttpRequest req)
                  throws java.lang.Exception

Specified by:

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

Throws:

java.lang.Exception

handle

public void handle(io.netty.channel.ChannelHandlerContext ctx,
                   io.netty.handler.codec.http.HttpRequest req)
            throws java.io.IOException,
                   java.net.URISyntaxException

Throws:

java.io.IOException

java.net.URISyntaxException

exceptionCaught

public void exceptionCaught(io.netty.channel.ChannelHandlerContext ctx,
                            java.lang.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