/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.log4j.gui;
import org.apache.log4j.helpers.CyclicBuffer;
import org.apache.log4j.helpers.LogLog;
import org.apache.log4j.Priority;
import org.apache.log4j.Category;
import org.apache.log4j.Layout;
import org.apache.log4j.PatternLayout;
import org.apache.log4j.spi.LoggingEvent;
import javax.swing.JList;
import javax.swing.AbstractListModel;
import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JScrollPane;
import javax.swing.ListCellRenderer;
import java.awt.Component;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import javax.swing.BoxLayout;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.Container;
import javax.swing.ImageIcon;
import java.awt.Image;
import java.awt.Toolkit;
import java.net.URL;
import java.awt.Rectangle;
public class JListView extends JList {
static Category cat = Category.getInstance(JListView.class.getName());
//JListViewModel model;
PatternLayout layout;
static LoggingEvent proto = new LoggingEvent("x", cat, Priority.ERROR,
"Message ", new Throwable());
public
JListView(JListViewModel model) {
super(model);
layout = new PatternLayout("%r %p %c [%t] - %m");
//this.setModel(model);
this.setCellRenderer(new MyCellRenderer());
// setFixedCellWidth(10);
//setFixedCellHeight(20);
}
public
void add(LoggingEvent event) {
((JListViewModel)getModel()).add(event);
}
/*
public
Dimension getPreferredSize() {
System.out.println("getPreferredSize() called");
return super.getPreferredSize();
}
public
int getScrollableUnitIncrement(Rectangle visibleRect, int orientation,
int direction) {
System.out.println("getScrollableUnitIncrement called with " + visibleRect +
"orientation: "+orientation+", direction: "+direction);
return super.getScrollableUnitIncrement(visibleRect, orientation,
direction);
}
public
int getScrollableBlockIncrement(Rectangle visibleRect, int orientation,
int direction) {
System.out.println("getScrollableBlockIncrement called with " +
visibleRect + "orientation: "+orientation+
", direction: "+direction);
return super.getScrollableBlockIncrement(visibleRect, orientation,
direction);
}
*/
//public
//boolean getScrollableTracksViewportWidth() {
//System.out.println("getScrollableTracksViewportWidth called.");
//return true;
//boolean b = super.getScrollableTracksViewportWidth();
//System.out.println("result is: "+b);
//return b;
//}
//public
//boolean getScrollableTracksViewportHeight() {
// System.out.println("getScrollableTracksViewportHeight called.");
// return true;
//boolean b = super.getScrollableTracksViewportHeight();
//System.out.println("result is: "+b);
//return b;
//}
//public
//int getFirstVisibleIndex() {
//int r = getFirstVisibleIndex();
// System.out.println("----------getFirstVisibleIndex called, result: "+r);
//return r;
//}
//public
//Object getPrototypeCellValue() {
//return proto;
//}
static public void main(String[] args) {
JFrame frame = new JFrame("JListView test");
Container container = frame.getContentPane();
JListView view = new JListView(new JListViewModel(Integer.parseInt(args[0])));
JScrollPane sp = new JScrollPane(view);
sp.setPreferredSize(new Dimension(250, 80));
container.setLayout(new BoxLayout(container, BoxLayout.X_AXIS));
//container.add(view);
container.add(sp);
JButton b1 = new JButton("Add 1");
JButton b10 = new JButton("Add 10");
JButton b100 = new JButton("Add 100");
JButton b1000 = new JButton("Add 1000");
JButton b10000 = new JButton("Add 10000");
JPanel panel = new JPanel(new GridLayout(0,1));
container.add(panel);
panel.add(b1);
panel.add(b10);
panel.add(b100);
panel.add(b1000);
panel.add(b10000);
AddAction a1 = new AddAction(view, 1);
AddAction a10 = new AddAction(view, 10);
AddAction a100 = new AddAction(view, 100);
AddAction a1000 = new AddAction(view, 1000);
AddAction a10000 = new AddAction(view, 10000);
b1.addActionListener(a1);
b10.addActionListener(a10);
b100.addActionListener(a100);
b1000.addActionListener(a1000);
b10000.addActionListener(a10000);
frame.setVisible(true);
frame.setSize(new Dimension(700,700));
long before = System.currentTimeMillis();
int RUN = 1000;
int i = 0;
while(i++ < RUN) {
LoggingEvent event0 = new LoggingEvent("x", cat, Priority.ERROR,
"Message "+i, null);
Throwable t = new Exception("hello "+i);
LoggingEvent event1 = new LoggingEvent("x", cat, Priority.ERROR,
"Message "+i, t);
if(i % 10 == 0) {
event1.getThreadName();
view.add(event1);
} else {
event0.getThreadName();
view.add(event0);
}
}
long after = System.currentTimeMillis();
System.out.println("Time taken :"+ ((after-before)*1000/RUN));
}
class MyCellRenderer extends JTextArea implements ListCellRenderer {
Object o = new Object();
int i = 0;
final ImageIcon longIcon = new ImageIcon("RedFlag.gif");
public
MyCellRenderer() {
System.out.println("----------------------");
}
public
int getTabSize() {
return 2;
}
public Image loadIcon ( String path ) {
Image img = null;
try {
URL url = ClassLoader.getSystemResource(path);
img = (Image) (Toolkit.getDefaultToolkit()).getImage(url);
} catch (Exception e) {
System.out.println("Exception occured: " + e.getMessage() +
" - " + e );
}
return (img);
}
public Component getListCellRendererComponent(JList list,
Object value,
int index, // cell index
boolean isSelected,
boolean cellHasFocus) {
// System.out.println(o + " ============== " + i++);
//LogLog.error("=======", new Exception());
//setIcon(longIcon);
if(value instanceof LoggingEvent) {
LoggingEvent event = (LoggingEvent) value;
String str = layout.format(event);
String t = event.getThrowableInformation();
if(t != null) {
setText(str + Layout.LINE_SEP + t);
} else {
setText(str);
}
} else {
setText(value.toString());
}
return this;
}
}
}
class JListViewModel extends AbstractListModel {
CyclicBuffer cb;
JListViewModel(int size) {
cb = new CyclicBuffer(size);
}
public
void add(LoggingEvent event) {
//System.out.println("JListViewModel.add called");
cb.add(event);
int j = cb.length();
fireContentsChanged(this, 0, j);
}
public
Object getElementAt(int index) {
return cb.get(index);
}
public
int getSize() {
return cb.length();
}
}
class AddAction implements ActionListener {
Thread t;
static int counter = 0;
public
AddAction(JListView view, int burst) {
this.t = new AddThread(view, burst);
t.start();
}
public
void actionPerformed(ActionEvent e) {
System.out.println("Action occured");
synchronized(t) {
t.notify();
}
}
class AddThread extends Thread {
int burst;
JListView view;
Category cat = Category.getInstance("x");
AddThread(JListView view, int burst) {
super();
this.burst = burst;
this.view = view;
setName("AddThread"+burst);
}
public
void run() {
while(true) {
synchronized(this) {
try {
this.wait();
} catch(Exception e) {
}
}
for(int i = 0; i < burst; i++) {
LoggingEvent event = new LoggingEvent("x", cat, Priority.DEBUG,
"Message "+counter, null);
event.getThreadName();
if(counter % 50 == 0) {
//event.throwable = new Exception("hello "+counter);
}
counter++;
view.add(event);
}
}
}
}
}
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