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package tim.prune.function;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Properties;
import javax.swing.JOptionPane;
import tim.prune.App;
import tim.prune.GenericFunction;
import tim.prune.GpsPrune;
import tim.prune.I18nManager;
import tim.prune.function.browser.BrowserLauncher;
/**
* Class to check the version of GpsPrune
* and show an appropriate dialog
*/
public class CheckVersionScreen extends GenericFunction
{
/**
* Constructor
* @param inApp app object
*/
public CheckVersionScreen(App inApp)
{
super(inApp);
}
/**
* Get the name key
*/
public String getNameKey() {
return "function.checkversion";
}
/**
* Show the check version dialog
*/
public void begin()
{
final String filePathStart = "http://activityworkshop.net/software/gpsprune/gpsprune_versioncheck_";
final String filePathEnd = ".txt";
String latestVer = null;
String nextVersion = null;
String releaseDate = null;
Properties props = new Properties();
try
{
// Load properties from the url on the server
InputStream inStream = new URL(filePathStart + GpsPrune.VERSION_NUMBER + filePathEnd).openStream();
props.load(inStream);
// Extract the three fields we want, ignore others
latestVer = props.getProperty("prune.latestversion");
nextVersion = props.getProperty("prune.nextversion");
releaseDate = props.getProperty("prune.releasedate");
}
catch (IOException ioe) {
System.err.println(ioe.getClass().getName() + " - " + ioe.getMessage());
}
if (latestVer == null) {
// Couldn't get version number, show error message
JOptionPane.showMessageDialog(_parentFrame, I18nManager.getText("dialog.checkversion.error"),
I18nManager.getText(getNameKey()), JOptionPane.ERROR_MESSAGE);
}
else if (latestVer.equals(GpsPrune.VERSION_NUMBER))
{
// Version on the server is the same as this one
String displayMessage = I18nManager.getText("dialog.checkversion.uptodate");
if (nextVersion != null && !nextVersion.equals(""))
{
displayMessage += "\n\n" + nextVersion;
}
// Show information message that the current version is already running
JOptionPane.showMessageDialog(_parentFrame, displayMessage,
I18nManager.getText(getNameKey()), JOptionPane.INFORMATION_MESSAGE);
}
else
{
// A new version is available!
String displayMessage = I18nManager.getText("dialog.checkversion.newversion1") + " " + latestVer
+ " " + I18nManager.getText("dialog.checkversion.newversion2");
try
{
if (releaseDate != null && !releaseDate.equals("")) {
displayMessage += "\n\n" + I18nManager.getText("dialog.checkversion.releasedate1") + " "
+ DateFormat.getDateInstance(DateFormat.LONG).format(new SimpleDateFormat("y-M-d").parse(releaseDate))
+ " " + I18nManager.getText("dialog.checkversion.releasedate2");
}
}
catch (ParseException pe) {
System.err.println("Oops, couldn't parse date: '" + releaseDate + "'");
}
displayMessage += "\n\n" + I18nManager.getText("dialog.checkversion.download");
// Show information message to download the new version
Object[] buttonTexts = {I18nManager.getText("button.showwebpage"), I18nManager.getText("button.cancel")};
if (JOptionPane.showOptionDialog(_parentFrame, displayMessage,
I18nManager.getText(getNameKey()), JOptionPane.YES_NO_OPTION,
JOptionPane.INFORMATION_MESSAGE, null, buttonTexts, buttonTexts[1])
== JOptionPane.YES_OPTION)
{
// User selected to launch home page
BrowserLauncher.launchBrowser("http://activityworkshop.net/software/gpsprune/download.html");
}
}
}
}
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