poll for local BKU, disable/skip option if unavailable

1 files changed, 19 insertions, 1 deletions

diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/LocalBKUConnector.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/LocalBKUConnector.java
index fe1e3a29..1f68a020 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/LocalBKUConnector.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/LocalBKUConnector.java
@@ -17,7 +17,7 @@ package at.asit.pdfover.gui.bku;
 

 // Imports

 import java.io.IOException;

-

+import java.net.Socket;

 

 import org.apache.commons.httpclient.HttpClient;

 import org.apache.commons.httpclient.HttpException;

@@ -45,6 +45,24 @@ public class LocalBKUConnector implements BkuSlConnector {
 	 **/

 	private static final Logger log = LoggerFactory.getLogger(LocalBKUConnector.class);

 

+	private static boolean isAvailable = false;

+	public static boolean IsAvailable() { return isAvailable; }

+	private static Thread pollingThread = new Thread(() -> {

+		while (true) {

+			try { Thread.sleep(isAvailable ? 30000 : 5000); } catch (InterruptedException e) {}

+			try (Socket socket = new Socket("127.0.0.1", 3495)) {

+				isAvailable = true;

+			} catch (IOException e) {

+				isAvailable = false;

+			}

+		}

+	}, "LocalBKUProbeThread");

+	static {

+		pollingThread.setDaemon(true);

+		pollingThread.start();

+	}

+	

+

 	/**

 	 * HTTP Response server HEADER

 	 */