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/*
* @(#)AInspector.java 1.16 06/27/07
*/
package com.sun.messaging.jmq.admin.apps.console;
import java.awt.Dimension;
import java.awt.CardLayout;
import java.util.Hashtable;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.event.EventListenerList;
import com.sun.messaging.jmq.admin.apps.console.event.AdminEvent;
import com.sun.messaging.jmq.admin.apps.console.event.AdminEventListener;
/**
* The inspector component of the admin GUI displays attributes
* of a specified console object.
*
* <P>
* There are a variety of objects that can be <EM>inspected</EM>:
* <UL>
* <LI>ObjStore List
* <LI>ObjStore
* <LI>ObjStore Destination List
* <LI>ObjStore ConnectionFactory List
* <LI>Broker List
* <LI>Broker
* <LI>Broker Service List
* <LI>Broker Destination List
* <LI>Broker Log List
* </UL>
*
* <P>
* For each of the object types above, a different inspector panel
* is needed for displaying the object's attributes.
*
* <P>
* This is implemented by having a main panel stacking all the
* different InspectorPanels in CardLayout. Each console object
* that can be inspected will contain information specifying
* which inspector panel to use to inspect it.
*/
public class AInspector extends JScrollPane {
private static String SPLASH_SCREEN = "SplashScreen";
private static String BLANK = "Blank";
private EventListenerList aListeners = new EventListenerList();
private InspectorPanel currentCard = null;
private CardLayout cardLayout;
private JPanel cardPanel;
private Hashtable cardList;
/**
* Create/initialize the admin inspector GUI component.
*/
public AInspector() {
initGui();
}
/**
* Add an admin event listener to this admin UI component.
* @param l admin event listener to add.
*/
public void addAdminEventListener(AdminEventListener l) {
aListeners.add(AdminEventListener.class, l);
}
/**
* Remove an admin event listener for this admin UI component.
* @param l admin event listener to remove.
*/
public void removeAdminEventListener(AdminEventListener l) {
aListeners.remove(AdminEventListener.class, l);
}
public void inspect(ConsoleObj conObj) {
/*
System.err.println("AInspector: inspecting: " + conObj);
System.err.println("\tClass: " + conObj.getClass().getName());
*/
if (conObj == null) {
cardLayout.show(cardPanel, BLANK);
return;
}
InspectorPanel ip = getInspectorPanel(conObj);
if (ip == null) {
ip = addInspectorPanel(conObj);
if (ip == null) {
System.err.println("Cannot inspect object: "
+ conObj
+ "\nFailed to create inspector panel");
return;
}
}
currentCard = ip;
currentCard.inspectConsoleObj(conObj, aListeners);
showInspectorPanel(conObj);
}
public void refresh() {
if (currentCard != null) {
currentCard.refresh();
}
}
public void selectedObjectUpdated() {
if (currentCard != null) {
currentCard.selectedObjectUpdated();
}
}
public void clearSelection() {
if (currentCard != null) {
currentCard.clearSelection();
}
}
private void showInspectorPanel(ConsoleObj conObj) {
cardLayout.show(cardPanel, conObj.getInspectorPanelId());
}
private InspectorPanel getInspectorPanel(ConsoleObj conObj) {
String panelId = conObj.getInspectorPanelId();
Object obj = cardList.get(panelId);
if ((obj != null) && (obj instanceof InspectorPanel)) {
return ((InspectorPanel)obj);
}
return (null);
}
private InspectorPanel addInspectorPanel(ConsoleObj conObj) {
String panelId = conObj.getInspectorPanelId();
String panelClassName = conObj.getInspectorPanelClassName();
InspectorPanel ip = null;
try {
ip = (InspectorPanel)Class.forName(panelClassName).newInstance();
/*
System.err.println("Class: " + panelClassName + " instantiated !!");
*/
} catch (ClassNotFoundException cnfEx) {
System.err.println("ConsoleObj does not name a valid inspector panel classname: "
+ cnfEx);
} catch (InstantiationException ie) {
System.err.println("Failed to intantiate inspector panel : "
+ ie);
} catch (IllegalAccessException iae) {
System.err.println("Illegal Access Exception while trying to intantiate inspector panel : "
+ iae);
}
if (ip == null)
return (null);
cardPanel.add(ip, panelId);
cardList.put(panelId, ip);
return (ip);
}
/*
* Fire off/dispatch an admin event to all the listeners.
*/
private void fireAdminEventDispatched(AdminEvent ae) {
Object[] l = aListeners.getListenerList();
for (int i = l.length-2; i>=0; i-=2) {
if (l[i] == AdminEventListener.class) {
((AdminEventListener)l[i+1]).adminEventDispatched(ae);
}
}
}
private void initGui() {
cardPanel = new JPanel();
cardLayout = new CardLayout();
cardPanel.setLayout(cardLayout);
initLayers(cardPanel);
setViewportView(cardPanel);
Dimension minimumSize = new Dimension(100, 50);
setMinimumSize(minimumSize);
}
private void initLayers(JPanel parent) {
JPanel p = new JPanel();
cardList = new Hashtable();
p = new SplashScreenInspector();
parent.add(p, SPLASH_SCREEN);
cardList.put(SPLASH_SCREEN, p);
p = new BlankInspector();
parent.add(p, BLANK);
cardList.put(BLANK, p);
cardLayout.show(parent, SPLASH_SCREEN);
}
}