Package org.apache.hadoop.hbase.hbtop.screen.top

Class TopScreenPresenter

java.lang.Object

org.apache.hadoop.hbase.hbtop.screen.top.TopScreenPresenter

@Private
public class TopScreenPresenter
extends Object

The presentation logic for the top screen.

Field Summary

Fields

Modifier and Type	Field	Description
private final AtomicBoolean	adjustFieldLength
private final EnumMap<Field,Boolean>	fieldDisplayMap
private final EnumMap<Field,Integer>	fieldLengthMap
private int	horizontalScroll
private long	iterations
private long	lastRefreshTimestamp
private final long	numberOfIterations
private final Paging	paging
private final AtomicLong	refreshDelay
private int	terminalLength
private final TopScreenModel	topScreenModel
private final TopScreenView	topScreenView

Constructor Summary

Constructors

Constructor	Description
TopScreenPresenter(TopScreenView topScreenView, long initialRefreshDelay, TopScreenModel topScreenModel, List<Field> initialFields, long numberOfIterations)

Method Summary

Modifier and Type	Method	Description
void	adjustFieldLength()
private void	adjustFieldLengthIfNeeded()
void	arrowDown()
void	arrowLeft()
void	arrowRight()
void	arrowUp()
void	clearFilters()
void	drillDown()
void	end()
private List<Header>	getDisplayedHeaders()
private List<Record>	getDisplayedRecords()
private int	getHeaderSize()
private Record	getSelectedRecord()
ScreenView	goToFilterDisplayMode(Screen screen, Terminal terminal, int row)
ScreenView	goToInputModeForFilter(Screen screen, Terminal terminal, int row, boolean ignoreCase)
ScreenView	goToInputModeForRefreshDelay(Screen screen, Terminal terminal, int row)
ScreenView	goToMessageMode(Screen screen, Terminal terminal, int row, String message)
void	home()
void	init()
private void	initFieldDisplayMapAndFieldLengthMap(List<Field> initialFields)
boolean	isIterationFinished()
void	pageDown()
void	pageUp()
long	refresh(boolean force)
private void	reset()
private void	switchMode(Mode nextMode)
void	switchSortOrder()
ScreenView	transitionToFieldScreen(Screen screen, Terminal terminal)
ScreenView	transitionToHelpScreen(Screen screen, Terminal terminal)
ScreenView	transitionToModeScreen(Screen screen, Terminal terminal)
private void	updateTerminalLengthAndPageSize(TerminalSize terminalSize, Integer pageSize)

Methods inherited from class java.lang.Object

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

Field Details

topScreenView

private final TopScreenView topScreenView

refreshDelay

private final AtomicLong refreshDelay

lastRefreshTimestamp

private long lastRefreshTimestamp

adjustFieldLength

private final AtomicBoolean adjustFieldLength

topScreenModel

private final TopScreenModel topScreenModel

terminalLength

private int terminalLength

horizontalScroll

private int horizontalScroll

paging

private final Paging paging

fieldDisplayMap

private final EnumMap<Field,Boolean> fieldDisplayMap

fieldLengthMap

private final EnumMap<Field,Integer> fieldLengthMap

numberOfIterations

private final long numberOfIterations

iterations

private long iterations

Constructor Details

TopScreenPresenter

public TopScreenPresenter(TopScreenView topScreenView,
 long initialRefreshDelay,
 TopScreenModel topScreenModel,
 @Nullable
 List<Field> initialFields,
 long numberOfIterations)

Method Details

init

public void init()

updateTerminalLengthAndPageSize

private void updateTerminalLengthAndPageSize(@Nullable
 TerminalSize terminalSize,
 @Nullable
 Integer pageSize)

refresh

public long refresh(boolean force)

adjustFieldLength

public void adjustFieldLength()

adjustFieldLengthIfNeeded

private void adjustFieldLengthIfNeeded()

getDisplayedHeaders

private List<Header> getDisplayedHeaders()

getDisplayedRecords

private List<Record> getDisplayedRecords()

getSelectedRecord

private Record getSelectedRecord()

arrowUp

public void arrowUp()

arrowDown

public void arrowDown()

pageUp

public void pageUp()

pageDown

public void pageDown()

arrowLeft

public void arrowLeft()

arrowRight

public void arrowRight()

home

public void home()

end

public void end()

getHeaderSize

private int getHeaderSize()

switchSortOrder

public void switchSortOrder()

transitionToHelpScreen

public ScreenView transitionToHelpScreen(Screen screen,
 Terminal terminal)

transitionToModeScreen

public ScreenView transitionToModeScreen(Screen screen,
 Terminal terminal)

transitionToFieldScreen

public ScreenView transitionToFieldScreen(Screen screen,
 Terminal terminal)

switchMode

private void switchMode(Mode nextMode)

drillDown

public void drillDown()

reset

private void reset()

initFieldDisplayMapAndFieldLengthMap

private void initFieldDisplayMapAndFieldLengthMap(@Nullable
 List<Field> initialFields)

goToMessageMode

public ScreenView goToMessageMode(Screen screen,
 Terminal terminal,
 int row,
 String message)

goToInputModeForRefreshDelay

public ScreenView goToInputModeForRefreshDelay(Screen screen,
 Terminal terminal,
 int row)

goToInputModeForFilter

public ScreenView goToInputModeForFilter(Screen screen,
 Terminal terminal,
 int row,
 boolean ignoreCase)

clearFilters

public void clearFilters()

goToFilterDisplayMode

public ScreenView goToFilterDisplayMode(Screen screen,
 Terminal terminal,
 int row)

isIterationFinished

public boolean isIterationFinished()