Package org.apache.hadoop.yarn.server.nodemanager.webapp

Class ContainerShellWebSocket

java.lang.Object

org.apache.hadoop.yarn.server.nodemanager.webapp.ContainerShellWebSocket

@LimitedPrivate({"HDFS","MapReduce","YARN"})
@Unstable
@WebSocket
public class ContainerShellWebSocket
extends Object

Web socket for establishing interactive command shell connection through Node Manage to container executor.

Constructor Summary

Constructors

Constructor	Description
ContainerShellWebSocket()

Method Summary

Modifier and Type	Method	Description
protected boolean	checkAuthorization(org.eclipse.jetty.websocket.api.Session session, Container container)	Check if user is authorized to access container.
static void	init(Context nm)
void	onClose(org.eclipse.jetty.websocket.api.Session session, int status, String reason)
void	onConnect(org.eclipse.jetty.websocket.api.Session session)
void	onText(org.eclipse.jetty.websocket.api.Session session, String message)

Methods inherited from class java.lang.Object

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

Constructor Details

ContainerShellWebSocket

public ContainerShellWebSocket()

Method Details

init

public static void init(Context nm)

onText

@OnWebSocketMessage
public void onText(org.eclipse.jetty.websocket.api.Session session,
 String message)
            throws IOException

Throws:

IOException

onConnect

@OnWebSocketConnect
public void onConnect(org.eclipse.jetty.websocket.api.Session session)

onClose

@OnWebSocketClose
public void onClose(org.eclipse.jetty.websocket.api.Session session,
 int status,
 String reason)

checkAuthorization

protected boolean checkAuthorization(org.eclipse.jetty.websocket.api.Session session,
 Container container)
                              throws IOException

Check if user is authorized to access container.

Parameters:

session - websocket session

container - instance of container to access

Returns:

true if user is allowed to access container.

Throws:

IOException