Displaying contents of a compressed zip file
import java.util.ArrayList;
import java.util.Date;
import java.util.Enumeration;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;
public class ZipFileViewer extends JFrame {
private JTable m_zipTable;
private ZipTableModel m_zipTableModel;
public ZipFileViewer(String zipFile, List zipEntries) {
m_zipTableModel = new ZipTableModel(zipEntries);
m_zipTable = new JTable(m_zipTableModel);
JScrollPane scrollPane = new JScrollPane(m_zipTable);
m_zipTable.setShowVerticalLines(true);
m_zipTable.setShowHorizontalLines(false);
getContentPane().add(scrollPane);
setSize(800, 400);
setVisible(true);
}
public static void main(String[] arg) throws Exception {
String zipFileName = arg[0];
List zipFileList = null;
ZipFile zipFile = new ZipFile(zipFileName);
Enumeration zipEntries = zipFile.entries();
zipFileList = new ArrayList();
while (zipEntries.hasMoreElements()) {
zipFileList.add((ZipEntry) (zipEntries.nextElement()));
}
ZipFileViewer zipFileViewer = new ZipFileViewer(zipFileName, zipFileList);
}
}
class ZipTableModel extends AbstractTableModel {
public static final int NAME = 0;
public static final int SIZE = 1;
public static final int COMP_SIZE = 2;
public static final int TYPE = 3;
public static final int LAST_MODI = 4;
public String[] m_colNames = { "File Name", "Size", "Compressed Size", "Type", "Last Modified" };
private List m_zipEntries;
public ZipTableModel(List zipEntries) {
super();
m_zipEntries = zipEntries;
}
public int getColumnCount() {
return m_colNames.length;
}
public int getRowCount() {
return m_zipEntries.size();
}
public String getColumnName(int col) {
return m_colNames[col];
}
public Object getValueAt(int row, int col) {
ZipEntry zipEntry = (ZipEntry) (m_zipEntries.get(row));
switch (col) {
case NAME:
return zipEntry.getName();
case SIZE:
if (zipEntry.isDirectory()) {
return "";
} else {
return String.valueOf(zipEntry.getSize() / 1000) + " KB";
}
case COMP_SIZE:
if (zipEntry.isDirectory()) {
return "";
} else {
return String.valueOf(zipEntry.getCompressedSize() / 1000) + " KB";
}
case TYPE:
if (zipEntry.isDirectory()) {
return "Directory";
} else {
return "File";
}
case LAST_MODI:
return String.valueOf(new Date(zipEntry.getTime()));
}
return new String();
}
}
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