Finally, a GUI for my shared links data. It uses only standard JDK methods, and the source is below, enjoy:
import java.awt.BorderLayout;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.IOException;
import java.net.URL;
import java.util.Date;
import java.util.Scanner;
import java.util.zip.GZIPInputStream;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;
/**
* Visualises my shared links
* @author Hasan Diwan
*/
public class LinksVisualiser extends JFrame {
JTable table;
DefaultTableModel model;
JButton closeButton, webButton;
/**
* Takes data from a CSV file and places it into a table for display.
* @param source - a reference to the file where the CSV data is located.
*/
static String title = "Shared Links";
public LinksVisualiser(String source) {
super(title);
table = new JTable();
JScrollPane scroll = new JScrollPane(table);
String[] colNames = { "Timestamp", "Recipient", "Link"};
model = new DefaultTableModel(colNames, 0);
InputStream is;
try {
if(source.indexOf("http")==0) {
URL facultyURL = new URL(source);
is = new GZIPInputStream(facultyURL.openStream());
}
else { //local file?
File f = new File(source);
is = new GZIPInputStream(new FileInputStream(f));
}
insertData(is);
//table.getColumnModel().getColumn(0).setCellRenderer(new CustomCellRenderer());
}
catch(IOException ioe) {
JOptionPane.showMessageDialog(this, ioe, "Error reading data", JOptionPane.ERROR_MESSAGE);
}
JPanel buttonPanel = new JPanel();
closeButton = new JButton("Close");
webButton = new JButton("Weblog");
buttonPanel.add(closeButton);
buttonPanel.add(new JLabel(" You can download this file from our site: "));
buttonPanel.add(webButton);
getContentPane().add(scroll, BorderLayout.CENTER);
getContentPane().add(buttonPanel, BorderLayout.SOUTH);
pack();
}
/**
* Places the data from the specified stream into this table for display. The data from the file must be in CSV format
* @param is - an input stream which could be from a file or a network connection or URL.
*/
void insertData(InputStream is) {
Scanner scan = new Scanner(is);
scan.nextLine();
String[] array;
while (scan.hasNextLine()) {
String line = scan.nextLine();
if(line.indexOf(",")>-1)
array = line.split(",");
else
array = line.split("\t");
Object[] data = new Object[array.length];
for (int i = 0; i < array.length; i++)
data[i] = array[i];
Date time = new Date(new Long((String)data[0])*1000);
data[0] = time;
model.addRow(data);
}
table.setModel(model);
}
public static void main(String args[]) {
LinksVisualiser l = new LinksVisualiser("http://hasan.d8u.us/sent_links.csv.gz");
l.setVisible(true);
l.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
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