Project-HomeFlix/src/application/updater.java

89 lines
3.4 KiB
Java

/**
* updater for Project HomeFlix
* checks for Updates and downloads it in case there is one
*/
package application;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import javax.swing.ProgressMonitor;
import javax.swing.ProgressMonitorInputStream;
import org.apache.commons.io.FileUtils;
import javafx.application.Platform;
public class updater extends Thread{
private MainWindowController mainWindowController;
private String buildURL;
private String downloadLink;
private String updateBuildNumber;
private String buildNumber;
public updater(MainWindowController m, String buildURL,String downloadLink,String buildNumber){
mainWindowController=m;
this.buildURL=buildURL;
this.downloadLink=downloadLink;
this.buildNumber=buildNumber;
}
public void run(){
System.out.println("check for updates ...");
Platform.runLater(() -> {
mainWindowController.updateBtn.setText(mainWindowController.bundle.getString("checkingUpdates"));
});
try {
URL url = new URL(buildURL); //URL of the text file with the current build number
BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
updateBuildNumber = in.readLine(); //write InputStream in String
in.close();
} catch (IOException e1) {
mainWindowController.showErrorMsg(mainWindowController.errorUpdateV, e1);
}
System.out.println("Build: "+buildNumber+", Update: "+updateBuildNumber);
//Compares the program BuildNumber with the current BuildNumber if program BuildNumber < current BuildNumber then perform a update
int iversion = Integer.parseInt(buildNumber);
int iaktVersion = Integer.parseInt(updateBuildNumber.replace(".", ""));
if(iversion >= iaktVersion){
Platform.runLater(() -> {
mainWindowController.updateBtn.setText(mainWindowController.bundle.getString("updateBtnNotavail"));
});
System.out.println("no update available");
}else{
Platform.runLater(() -> {
mainWindowController.updateBtn.setText(mainWindowController.bundle.getString("updateBtnavail"));
});
System.out.println("update available");
try {
//get the download-Data URL
URL downloadURL = new URL(downloadLink);
BufferedReader in = new BufferedReader(new InputStreamReader(downloadURL.openStream()));
String updateDataURL = in.readLine();
//open new Http connection, ProgressMonitorInputStream for downloading the data
HttpURLConnection conn = (HttpURLConnection) new URL(updateDataURL).openConnection();
ProgressMonitorInputStream pmis = new ProgressMonitorInputStream(null, "Downloading...", conn.getInputStream());
ProgressMonitor pm = pmis.getProgressMonitor();
pm.setMillisToDecideToPopup(0);
pm.setMillisToPopup(0);
pm.setMinimum(0);// tell the progress bar that we start at the beginning of the stream
pm.setMaximum(conn.getContentLength());// tell the progress bar the total number of bytes we are going to read.
FileUtils.copyInputStreamToFile(pmis, new File("ProjectHomeFlix.jar"));
Runtime.getRuntime().exec("java -jar ProjectHomeFlix.jar"); //start again
System.exit(0); //finishes itself
} catch (IOException e) {
//in case there is an error
mainWindowController.showErrorMsg(mainWindowController.errorUpdateD, e);
}
}
}
}