/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2007-2008, Open Source Geospatial Foundation (OSGeo)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.geotools.caching.grid.featurecache;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.io.IOException;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import org.geotools.caching.featurecache.FeatureCacheException;
import org.geotools.caching.grid.spatialindex.store.MemoryStorage;
import org.geotools.data.memory.MemoryDataStore;
import org.geotools.feature.FeatureCollection;
import com.vividsolutions.jts.geom.Envelope;
/**
*
*
* @source $URL$
*/
public class DemoApp extends JFrame {
MemoryDataStore ds;
GridFeatureCache cache;
volatile boolean task_wait = true;
JPanel jContentPane = null;
JPanel statsPanel = null;
JPanel graphPanel = null;
CacheDisplayPanel panel = null;
JButton runQueryButton = null;
JButton pauseButton = null;
JLabel lblNumData = null;
JLabel lblNumReads = null;
JLabel lblNumWrites = null;
JLabel lblNumEvictions = null;
int threads = 0;
DemoApp(long seed) {
initDataStore(seed);
initDataCache();
panel = new CacheDisplayPanel(cache);
this.setContentPane(getJContentPane());
}
void initDataStore(long seed) {
ds = new MemoryDataStore();
FeatureCollection fc = DataUtilities.createUnitsquareDataSet(500, seed);
ds.addFeatures(fc);
}
void initDataCache() {
try {
cache = new GridFeatureCache(ds.getFeatureSource(ds.getTypeNames()[0]), 100, 100,
MemoryStorage.createInstance());
} catch (FeatureCacheException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
JPanel getJContentPane() {
if (jContentPane == null) {
jContentPane = new JPanel();
GridBagLayout bag = new GridBagLayout();
jContentPane.setLayout(bag);
GridBagConstraints c = new GridBagConstraints();
c.fill = GridBagConstraints.BOTH;
bag.setConstraints(getStatsPanel(), c);
jContentPane.add(getStatsPanel());
c.weightx = 1.0;
c.weighty = 1.0;
c.gridwidth = GridBagConstraints.REMAINDER;
bag.setConstraints(panel, c);
jContentPane.add(panel, c);
c.weightx = 0;
c.weighty = 0;
bag.setConstraints(getGraphPanel(), c);
jContentPane.add(getGraphPanel(), c);
}
return jContentPane;
}
JPanel getStatsPanel() {
if (statsPanel == null) {
statsPanel = new JPanel();
statsPanel.setLayout(new GridLayout(5, 2, 1, 1));
statsPanel.setSize(100, 400);
statsPanel.add(new JLabel("Stats"));
statsPanel.add(new JLabel("Panel"));
statsPanel.add(new JLabel("Data = "));
lblNumData = new JLabel("0");
statsPanel.add(lblNumData);
statsPanel.add(new JLabel("Reads = "));
lblNumReads = new JLabel("0");
statsPanel.add(lblNumReads);
statsPanel.add(new JLabel("Writes = "));
lblNumWrites = new JLabel("0");
statsPanel.add(lblNumWrites);
lblNumEvictions = new JLabel("0");
statsPanel.add(new JLabel("Evictions = "));
statsPanel.add(lblNumEvictions);
}
return statsPanel;
}
JButton getRunQueryButton() {
if (runQueryButton == null) {
runQueryButton = new JButton("New thread");
runQueryButton.addMouseListener(new MouseListener() {
public void mouseClicked(MouseEvent ev) {
Runnable task = new Runnable() {
public void run() {
runQueries();
}
};
new Thread(task, new Integer(++threads).toString()).start();
}
public void mouseEntered(MouseEvent arg0) {
// TODO Auto-generated method stub
}
public void mouseExited(MouseEvent arg0) {
// TODO Auto-generated method stub
}
public void mousePressed(MouseEvent arg0) {
// TODO Auto-generated method stub
}
public void mouseReleased(MouseEvent arg0) {
// TODO Auto-generated method stub
}
});
}
return runQueryButton;
}
JButton getPauseButton() {
if (pauseButton == null) {
pauseButton = new JButton("Start");
pauseButton.addMouseListener(new MouseListener() {
public void mouseClicked(MouseEvent e) {
if (task_wait) {
pauseButton.setText("Pause");
} else {
pauseButton.setText("Resume");
}
task_wait = !task_wait;
}
public void mouseEntered(MouseEvent arg0) {
// TODO Auto-generated method stub
}
public void mouseExited(MouseEvent arg0) {
// TODO Auto-generated method stub
}
public void mousePressed(MouseEvent arg0) {
// TODO Auto-generated method stub
}
public void mouseReleased(MouseEvent arg0) {
// TODO Auto-generated method stub
}
});
}
return pauseButton;
}
JPanel getGraphPanel() {
if (graphPanel == null) {
graphPanel = new JPanel();
graphPanel.setSize(300, 100);
graphPanel.add(new JLabel("GraphPanel"));
graphPanel.add(getRunQueryButton());
graphPanel.add(getPauseButton());
}
return graphPanel;
}
void runQueries() {
JFrame frame = new JFrame("Thread " + Thread.currentThread().getName());
QueryDisplayPanel display = new QueryDisplayPanel();
frame.setContentPane(display);
frame.setSize(200, 200);
frame.setVisible(true);
// cache.clear();
for (int j = 0; j < 10; j++) {
for (int i = 0; i < 10; i++) {
try {
while (task_wait) {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
//System.out.print("i = " + i + ", j = " + j);
Envelope query = new Envelope(i * .1, (i + 1) * .1, j * .1, (j + 1) * .1);
display.setResult(cache.get(query));
lblNumData.setText(new Long(cache.tracker.getStatistics().getNumberOfData())
.toString());
lblNumReads.setText(new Long(cache.tracker.getStatistics().getReads()).toString());
lblNumWrites.setText(new Long(cache.tracker.getStatistics().getWrites())
.toString());
lblNumEvictions.setText(new Integer(cache.tracker.getEvictions()).toString());
panel.setCurrentQuery(Thread.currentThread().getName(), query);
panel.repaint();
Object waiter = new Object();
synchronized (waiter) {
try {
waiter.wait(100);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
frame.setVisible(false);
frame.dispose();
panel.removeWorker(Thread.currentThread().getName());
panel.repaint();
}
public static void main(String[] args) {
long seed = 1025;
if (args.length < 1) {
System.out.println("Usage: DemoApp seed");
System.out.println("Using default for seed value : " + seed);
} else {
try {
seed = Long.parseLong(args[0]);
} catch (Exception e) {
throw new IllegalArgumentException(
"Error : seed argument must be numeric ; input was : " + args[0]);
}
}
DemoApp thisClass = new DemoApp(seed);
thisClass.setSize(600, 400);
thisClass.setTitle("Google SoC : Feature Cache Demo Application");
thisClass.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
thisClass.setVisible(true);
thisClass.runQueries();
}
}