org.apache.hadoop.hdfs.tools.offlineImageViewer

Class WebImageViewer

java.lang.Object

org.apache.hadoop.hdfs.tools.offlineImageViewer.WebImageViewer

public class WebImageViewer
extends Object

WebImageViewer loads a fsimage and exposes read-only WebHDFS API for its namespace.

Field Summary

Fields

Modifier and Type	Field and Description
static org.apache.commons.logging.Log	LOG

Constructor Summary

Constructors

Constructor and Description
WebImageViewer(InetSocketAddress address)

Method Summary

Methods

Modifier and Type	Method and Description
int	getPort() Get the listening port.
void	initServer(String fsimage) Start WebImageViewer.
void	initServerAndWait(String fsimage) Start WebImageViewer and wait until the thread is interrupted.
void	shutdown() Stop WebImageViewer.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LOG

public static final org.apache.commons.logging.Log LOG

Constructor Detail

WebImageViewer

public WebImageViewer(InetSocketAddress address)

Method Detail

initServerAndWait

public void initServerAndWait(String fsimage)
                       throws IOException

Start WebImageViewer and wait until the thread is interrupted.

Parameters:

fsimage - the fsimage to load.

Throws:

IOException - if failed to load the fsimage.

initServer

public void initServer(String fsimage)
                throws IOException

Start WebImageViewer.

Parameters:

fsimage - the fsimage to load.

Throws:

IOException - if fail to load the fsimage.

shutdown

public void shutdown()

Stop WebImageViewer.

getPort

public int getPort()

Get the listening port.

Returns:

the port WebImageViewer is listening on