Package org.apache.hadoop.hdfs.server.namenode

Class NameNodeHttpServer

java.lang.Object

org.apache.hadoop.hdfs.server.namenode.NameNodeHttpServer

@Private
public class NameNodeHttpServer
extends Object

Encapsulates the HTTP server started by the NameNode.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	ALIASMAP_ATTRIBUTE_KEY
static final String	FSIMAGE_ATTRIBUTE_KEY
static final String	NAMENODE_ADDRESS_ATTRIBUTE_KEY
protected static final String	NAMENODE_ATTRIBUTE_KEY
static final String	STARTUP_PROGRESS_ATTRIBUTE_KEY

Method Summary

Modifier and Type	Method	Description
org.apache.hadoop.http.HttpServer2	getHttpServer()	Returns the httpServer.
static InetSocketAddress	getNameNodeAddressFromContext(javax.servlet.ServletContext context)
static NameNode	getNameNodeFromContext(javax.servlet.ServletContext context)
static org.apache.hadoop.ha.HAServiceProtocol.HAServiceState	getNameNodeStateFromContext(javax.servlet.ServletContext context)
static TokenVerifier	getTokenVerifierFromContext(javax.servlet.ServletContext context)
static void	initWebHdfs(org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.http.HttpServer2 httpServer2, String jerseyResourcePackage)
void	join()	Joins the httpserver.

Methods inherited from class java.lang.Object

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

Field Details

NAMENODE_ADDRESS_ATTRIBUTE_KEY

public static final String NAMENODE_ADDRESS_ATTRIBUTE_KEY

See Also:

• Constant Field Values

FSIMAGE_ATTRIBUTE_KEY

public static final String FSIMAGE_ATTRIBUTE_KEY

See Also:

• Constant Field Values

NAMENODE_ATTRIBUTE_KEY

protected static final String NAMENODE_ATTRIBUTE_KEY

See Also:

• Constant Field Values

STARTUP_PROGRESS_ATTRIBUTE_KEY

public static final String STARTUP_PROGRESS_ATTRIBUTE_KEY

See Also:

• Constant Field Values

ALIASMAP_ATTRIBUTE_KEY

public static final String ALIASMAP_ATTRIBUTE_KEY

See Also:

• Constant Field Values

Method Details

initWebHdfs

public static void initWebHdfs(org.apache.hadoop.conf.Configuration conf,
 org.apache.hadoop.http.HttpServer2 httpServer2,
 String jerseyResourcePackage)
                        throws IOException

Throws:

IOException

join

public void join()
          throws InterruptedException

Joins the httpserver.

Throws:

InterruptedException

getNameNodeFromContext

public static NameNode getNameNodeFromContext(javax.servlet.ServletContext context)

getTokenVerifierFromContext

public static TokenVerifier getTokenVerifierFromContext(javax.servlet.ServletContext context)

getNameNodeAddressFromContext

public static InetSocketAddress getNameNodeAddressFromContext(javax.servlet.ServletContext context)

getNameNodeStateFromContext

public static org.apache.hadoop.ha.HAServiceProtocol.HAServiceState getNameNodeStateFromContext(javax.servlet.ServletContext context)

getHttpServer

@VisibleForTesting
public org.apache.hadoop.http.HttpServer2 getHttpServer()

Returns the httpServer.

Returns:

HttpServer2