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package com.c2kernel.gui;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.io.IOException;
import java.util.Iterator;
import java.util.StringTokenizer;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
import javax.swing.JToggleButton;
import com.c2kernel.lookup.DomainPath;
import com.c2kernel.lookup.Lookup;
import com.c2kernel.lookup.Path;
import com.c2kernel.process.Gateway;
import com.c2kernel.utils.Language;
import com.c2kernel.utils.Logger;
public class ItemFinder extends Box implements Runnable {
JTextField inputField;
JButton findButton;
JButton findNextButton;
GridBagLayout gridbag = new GridBagLayout();
Lookup lookup = Gateway.getLookup();
DomainKeyConsumer defaultConsumer = null;
DomainKeyConsumer currentConsumer = null;
Iterator<?> matches;
Path rootNode = MainFrame.userNode.getPath();
static protected ImageIcon mFindIcon = null;
static protected ImageIcon mNextIcon = null;
static {
try
{
mNextIcon =ImageLoader.findImage("next.png");
mFindIcon =ImageLoader.findImage("find.png");
}
catch (Exception e)
{
Logger.error("Couldn't load images: " + e);
}
}
public ItemFinder() {
super(BoxLayout.X_AXIS);
initPanel();
}
public void pushNewKey(String key) {
inputField.setText(key);
runSearch();
}
public void setDefaultConsumer(DomainKeyConsumer newConsumer) {
defaultConsumer = newConsumer;
currentConsumer = newConsumer;
}
public void setConsumer(DomainKeyConsumer newConsumer, String label) {
currentConsumer = newConsumer;
findButton.setText(label);
}
public void clearConsumer(DomainKeyConsumer oldConsumer) {
if (currentConsumer == oldConsumer) {
currentConsumer = defaultConsumer;
findButton.setText("");
}
}
private void initPanel() {
JLabel search = new JLabel(" "+Language.translate("Search")+":");
add(search);
add(Box.createHorizontalStrut(7));
inputField = new JTextField(20);
add(inputField);
add(Box.createHorizontalStrut(5));
inputField.addActionListener( new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
pushNewKey(inputField.getText());
}
});
findButton = new JButton(mFindIcon);//(Language.translate("Find"));
findButton.setMargin(new Insets(2, 5, 2, 5));
findButton.addActionListener( new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
pushNewKey(inputField.getText());
}
});
add(findButton);
add(Box.createHorizontalStrut(5));
findNextButton = new JButton(mNextIcon);//(Language.translate("Next"));
findNextButton.setMargin(new Insets(2, 5, 2, 5));
findNextButton.addActionListener( new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
nextMatch();
}
});
findNextButton.setEnabled(false);
add(findNextButton);
add(Box.createHorizontalStrut(15));
// create plugins
Logger.msg(6, "ItemFinder() - creating plugins");
String requiredListeners = Gateway.getProperties().getString("DomainKeyListeners");
if (requiredListeners != null) {
StringTokenizer tok = new StringTokenizer(requiredListeners, ",");
while (tok.hasMoreTokens()) {
String listenerName = tok.nextToken();
Logger.msg(6, "ItemFinder() - creating a " + listenerName);
try {
Class<?> listenerClass = Class.forName(listenerName);
DomainKeyListener newListener = (DomainKeyListener)listenerClass.newInstance();
newListener.init(); newListener.setConsumer(this);
JToggleButton listenerButton = new JToggleButton(newListener.getIcon(), false);
listenerButton.addItemListener(new ListenerButtonListener(newListener, listenerButton));
listenerButton.setMargin(new Insets(0, 2, 0, 2));
listenerButton.setToolTipText("Enable "+newListener.getDescription());
add(listenerButton);
add(Box.createHorizontalStrut(7));
} catch (Exception e) {
Logger.error("ItemFinder() - could not create a "+listenerName+": "+e);
}
}
add(Box.createHorizontalGlue());
}
}
private void runSearch() {
Thread searcher = new Thread(this);
searcher.start();
}
@Override
public void run() {
Thread.currentThread().setName("Entity Search");
String searchTerm = inputField.getText();
if (searchTerm.length() == 0) return; // don't allow null searches
findButton.setEnabled(false); findNextButton.setEnabled(false);
MainFrame.progress.startBouncing("Searching. Please Wait");
findNextButton.setEnabled(false);
String term = inputField.getText();
// The following block does property searching when the field contains a colon, but that returns EntityPaths, which the tree can't handle
// int colonPos = term.indexOf(':');
// if (colonPos > 0)
// matches = lookup.search(rootNode,term.substring(0, colonPos), term.substring(colonPos+1));
// else
matches = lookup.search(rootNode,term);
if (!matches.hasNext()) {
MainFrame.progress.stopBouncing("No results");
currentConsumer.push(searchTerm); // for subscribers who don't care if it exists
findButton.setEnabled(true);
return;
}
MainFrame.progress.stopBouncing("Selecting first match.");
nextMatch();
}
void nextMatch() {
findButton.setEnabled(false); findNextButton.setEnabled(false);
DomainPath nextMatch = (DomainPath)matches.next();
try
{
currentConsumer.push(nextMatch);
}
catch (NullPointerException e)
{
//case the item searched is not found !
}
findButton.setEnabled(true);
findNextButton.setToolTipText("Click to show next match");
if (matches.hasNext()) findNextButton.setEnabled(true);
}
private class ListenerButtonListener implements ItemListener {
private final DomainKeyListener listener;
private final JToggleButton listenerButton;
public ListenerButtonListener(DomainKeyListener newListener, JToggleButton listenerButton) {
this.listener = newListener;
this.listenerButton = listenerButton;
}
@Override
public void itemStateChanged(ItemEvent e) {
if (e.getStateChange() == ItemEvent.SELECTED) {
// Switch on
try {
if (!(listener.enable())) listenerButton.doClick(); // allow plugins to disable themselves
} catch (IOException ex) {
JOptionPane.showMessageDialog(null, ex.getMessage(), "Error initialising "+listener.getDescription(), JOptionPane.ERROR_MESSAGE);
listenerButton.doClick();
}
listenerButton.setToolTipText("Disable "+listener.getDescription());
} else {
// Switch off
listener.disable();
listenerButton.setToolTipText("Enable "+listener.getDescription());
}
}
}
}
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