Fix: #60 wrong progress on download error

src/main/java/com/sheepit/client/network/DownloadProgress.java

@@ -41,6 +41,18 @@ public class DownloadProgress {
 	
 	public synchronized void addProgress(long progress) {
 		this.partial += progress;
+		this.updateUI();
+	}
+	
+	/**
+	 * In case of an issue on a download, remove the already downloaded progress
+	 */
+	public synchronized void removeProgress(long progress) {
+		this.partial -= progress;
+		this.updateUI();
+	}
+	
+	private void updateUI() {
 		if (this.total != 0) {
 			gui.status(String.format(this.guiPattern + " %.0f %%", 100.0f * this.partial / this.total));
 		}

src/main/java/com/sheepit/client/network/ServerRequest.java

@@ -518,7 +518,8 @@ public class ServerRequest extends Thread {
 		this.log.debug("Server::HTTPGetFile destination: " + destination_);
 		InputStream is = null;
 		OutputStream output = null;
-
+		
+		long written = 0;
 		try {
 			Response response = this.HTTPRequest(url_);
 			
@@ -534,7 +535,6 @@ public class ServerRequest extends Thread {
 			// only update the gui every 1MB
 			byte[] buffer = new byte[1024 * 1024];
 			int len;
-			long written = 0;
 			
 			this.log.debug("Downloading file from " + response.request().url().host());
 			LocalDateTime startRequestTime = LocalDateTime.now();
@@ -574,6 +574,8 @@ public class ServerRequest extends Thread {
 				throw new SheepItExceptionNoSpaceLeftOnDevice();
 			}
 			
+			gui_.getDownloadProgress().removeProgress(written);
+			
 			StringWriter sw = new StringWriter();
 			e.printStackTrace(new PrintWriter(sw));
 			this.log.error("Server::HTTPGetFile Exception " + e + " stacktrace " + sw.toString());