Package org.apache.jmeter.protocol.http.gui

# Class DNSCachePanel

java.lang.Object
java.awt.Component
java.awt.Container
javax.swing.JComponent
javax.swing.JPanel
org.apache.jmeter.gui.AbstractJMeterGuiComponent
org.apache.jmeter.config.gui.AbstractConfigGui
org.apache.jmeter.protocol.http.gui.DNSCachePanel

All Implemented Interfaces:
  `ActionListener`, `ImageObserver`, `MenuContainer`, `Serializable`, `EventListener`, `Accessible`, `ClearGui`, `JMeterGUIComponent`, `Printable`

public class DNSCachePanel extends AbstractConfigGui implements ActionListener
This gui part of @see `DNSCacheManager`. Using radiobuttons, user can switch between using system DNS resolver and custom resolver. Custom resolver functionality is provided by dnsjava library. "DNS servers" may contain one or more IP/Name of dns server for resolving name DNS servers are chosen via round-robin. If table is empty - system resolver is used.

Since:
  2.12
See Also:
  - Serialized Form

## Nested Class Summary

## Nested classes/interfaces inherited from class javax.swing.JPanel

`JPanel.AccessibleJPanel`

## Nested classes/interfaces inherited from class javax.swing.JComponent

`JComponent.AccessibleJComponent`

## Nested classes/interfaces inherited from class java.awt.Container

`Container.AccessibleAWTContainer`

## Nested classes/interfaces inherited from class java.awt.Component

`Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy`

## Field Summary

Fields
Modifier and Type
Field
Description
`static final String`
`OPTIONS`

### Fields inherited from class org.apache.jmeter.gui.AbstractJMeterGuiComponent

`bindingGroup, namePanel`

### Fields inherited from class javax.swing.JComponent

`listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW`

### Fields inherited from class java.awt.Component

`accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT`

### Fields inherited from interface java.awt.image.ImageObserver

`ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH`

## Constructor Summary

Constructors
Constructor
Description
`DNSCachePanel()`
Default constructor.

## Method Summary

Modifier and Type
Method
Description
`void`
`actionPerformed(ActionEvent e)`
`void`
`assignDefaultValues(org.apache.jmeter.testelement.TestElement element)`
Configures default values for element after its creation.
`void`
`clearGui()`
Implements JMeterGUIComponent.clearGui
`void`
`configure(org.apache.jmeter.testelement.TestElement el)`
A newly created gui component can be initialized with the contents of a Test Element object by calling this method.
`JPanel`
`createDnsHostsTablePanel()`
`JPanel`
`createDnsServersTablePanel()`
`String`
`getLabelResource()`
Get the component's resource name, which getStaticLabel uses to derive the component's label in the local language.
`org.apache.jmeter.testelement.TestElement`
`makeTestElement()`
Creates the test element represented by the GUI component.
`void`
`modifyTestElement(org.apache.jmeter.testelement.TestElement dnsRes)`
Modifies a given TestElement to mirror the data in the gui components.

### Methods inherited from class org.apache.jmeter.config.gui.AbstractConfigGui

`createPopupMenu, getMenuCategories`

### Methods inherited from class org.apache.jmeter.gui.AbstractJMeterGuiComponent

`configureTestElement, createTitleLabel, getComment, getDocAnchor, getName, getNamePanel, getPrintableComponent, getStaticLabel, isEnabled, makeBorder, makeScrollPane, makeScrollPane, makeTitlePanel, setComment, setEnabled, setName, wrapTitlePanel`

### Methods inherited from class javax.swing.JPanel

`getAccessibleContext, getUI, getUIClassID, paramString, setUI, updateUI`

### Methods inherited from class javax.swing.JComponent

`addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update`

### Methods inherited from class java.awt.Container

`add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validate, validateTree`

### Methods inherited from class java.awt.Component

`action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getParent, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setMixingCutoutShape, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle`

### Methods inherited from class java.lang.Object

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

### Methods inherited from interface org.apache.jmeter.gui.JMeterGUIComponent

`canBeAdded, createTestElement`

## Field Details

### OPTIONS

public static final String OPTIONS

## Constructor Details

### DNSCachePanel

public DNSCachePanel()
Default constructor.

## Method Details

### getLabelResource

public String getLabelResource()
Description copied from interface: `JMeterGUIComponent`
Get the component's resource name, which getStaticLabel uses to derive the component's label in the local language. The resource name is fixed, and does not vary with the selected language.

Normally this method should be overridden in preference to overriding getStaticLabel(). However where the resource name is not available or required, getStaticLabel() may be overridden instead.

Specified by:
  `getLabelResource` in interface `JMeterGUIComponent`
Returns:
  the resource name

### modifyTestElement

public void modifyTestElement(org.apache.jmeter.testelement.TestElement dnsRes)
Modifies a given TestElement to mirror the data in the gui components.

Specified by:
  `modifyTestElement` in interface `JMeterGUIComponent`
Overrides:
  `modifyTestElement` in class `AbstractJMeterGuiComponent`
Parameters:
  `dnsRes` - the TestElement to modify
See Also:
  - `JMeterGUIComponent.modifyTestElement(org.apache.jmeter.testelement.TestElement)`

### clearGui

public void clearGui()
Implements JMeterGUIComponent.clearGui

Specified by:
  `clearGui` in interface `ClearGui`
Overrides:
  `clearGui` in class `AbstractJMeterGuiComponent`

### makeTestElement

public org.apache.jmeter.testelement.TestElement makeTestElement()
Description copied from interface: `JMeterGUIComponent`
Creates the test element represented by the GUI component.

Specified by:
  `makeTestElement` in interface `JMeterGUIComponent`
Returns:
  a new `TestElement`

### assignDefaultValues

public void assignDefaultValues(org.apache.jmeter.testelement.TestElement element)
Description copied from interface: `JMeterGUIComponent`
Configures default values for element after its creation. Plugin authors should call this once in their `JMeterGUIComponent.createTestElement()` implementation.

Specified by:
  `assignDefaultValues` in interface `JMeterGUIComponent`
Parameters:
  `element` - test element to configure

### configure

public void configure(org.apache.jmeter.testelement.TestElement el)
Description copied from class: `AbstractJMeterGuiComponent`
A newly created gui component can be initialized with the contents of a Test Element object by calling this method. The component is responsible for querying the Test Element object for the relevant information to display in its GUI.

AbstractJMeterGuiComponent provides a partial implementation of this method, setting the name of the component and its enabled status. Subclasses should override this method, performing their own configuration as needed, but also calling this super-implementation.

Specified by:
  `configure` in interface `JMeterGUIComponent`
Overrides:
  `configure` in class `AbstractJMeterGuiComponent`
Parameters:
  `el` - the TestElement to configure

### createDnsServersTablePanel

public JPanel createDnsServersTablePanel()

### createDnsHostsTablePanel

public JPanel createDnsHostsTablePanel()

### actionPerformed

public void actionPerformed(ActionEvent e)

Specified by:
  `actionPerformed` in interface `ActionListener`