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

Class MetaRecoveryContext

java.lang.Object

org.apache.hadoop.hdfs.server.namenode.MetaRecoveryContext

@Private
@Evolving
public final class MetaRecoveryContext
extends java.lang.Object

Context data for an ongoing NameNode metadata recovery process.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MetaRecoveryContext.RequestStopException	Exception thrown when the user has requested processing to stop.

Field Summary

Fields

Modifier and Type	Field	Description
static int	FORCE_ALL
static int	FORCE_FIRST_CHOICE
static int	FORCE_NONE
static org.slf4j.Logger	LOG

Constructor Summary

Constructors

Constructor	Description
MetaRecoveryContext(int force)

Method Summary

Modifier and Type	Method	Description
java.lang.String	ask(java.lang.String prompt, java.lang.String firstChoice, java.lang.String... choices)	Display a prompt to the user and get his or her choice.
static void	editLogLoaderPrompt(java.lang.String prompt, MetaRecoveryContext recovery, java.lang.String contStr)
int	getForce()
void	quit()	Log a message and quit
void	setForce(int force)

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.slf4j.Logger LOG

FORCE_NONE

public static final int FORCE_NONE

See Also:

Constant Field Values

FORCE_FIRST_CHOICE

public static final int FORCE_FIRST_CHOICE

See Also:

Constant Field Values

FORCE_ALL

public static final int FORCE_ALL

See Also:

Constant Field Values

Constructor Detail

MetaRecoveryContext

public MetaRecoveryContext(int force)

Method Detail

ask

public java.lang.String ask(java.lang.String prompt,
                            java.lang.String firstChoice,
                            java.lang.String... choices)
                     throws java.io.IOException

Display a prompt to the user and get his or her choice.

Parameters:

prompt - The prompt to display

firstChoice - First choice (will be taken if autoChooseDefault is true)

choices - Other choies

Returns:

The choice that was taken

Throws:

java.io.IOException

editLogLoaderPrompt

public static void editLogLoaderPrompt(java.lang.String prompt,
                                       MetaRecoveryContext recovery,
                                       java.lang.String contStr)
                                throws java.io.IOException,
                                       MetaRecoveryContext.RequestStopException

Throws:

java.io.IOException

MetaRecoveryContext.RequestStopException

quit

public void quit()

Log a message and quit

getForce

public int getForce()

setForce

public void setForce(int force)