altosui: Display eeprom parsing errors to user

When reading the eeprom, any parsing errors (most likely bad
checksums) indicate some kind of problem with either the hardware or
the flight software. Display these to the user and do not erase the
flight.

Signed-off-by: Keith Packard <keithp@keithp.com>
(cherry picked from commit 249cd3b63d97581b068fff988e0cd7fcd5bf493e)

2 files changed, 38 insertions, 16 deletions

diff --git a/altosui/AltosEepromBlock.java b/altosui/AltosEepromBlock.java
index 11438df8..d59fd39e 100644
--- a/altosui/AltosEepromBlock.java
+++ b/altosui/AltosEepromBlock.java
@@ -44,6 +44,7 @@ public class AltosEepromBlock extends ArrayList<AltosEepromRecord> {
 	double	lon;
 	boolean	has_time;
 	int	hour, minute, second;
+	ParseException	parse_exception = null;
 
 	public AltosEepromBlock (AltosSerial serial_line, int block) throws TimeoutException, InterruptedException {
 		int	addr;
@@ -100,6 +101,8 @@ public class AltosEepromBlock extends ArrayList<AltosEepromRecord> {
 			} catch (ParseException pe) {
 				AltosEepromRecord	r = new AltosEepromRecord(Altos.AO_LOG_INVALID,
 										  0, 0, 0);
+				if (parse_exception == null)
+					parse_exception = pe;
 				if (!done)
 					add(addr/8, r);
 			}
diff --git a/altosui/AltosEepromDownload.java b/altosui/AltosEepromDownload.java
index f1abd50c..1da94a67 100644
--- a/altosui/AltosEepromDownload.java
+++ b/altosui/AltosEepromDownload.java
@@ -47,6 +47,7 @@ public class AltosEepromDownload implements Runnable {
 	AltosEepromList		flights;
 	ActionListener		listener;
 	boolean			success;
+	ParseException		parse_exception;
 
 	private void FlushPending() throws IOException {
 		for (String s : flights.config_data) {
@@ -128,17 +129,22 @@ public class AltosEepromDownload implements Runnable {
 					state = eeblock.state;
 			}
 
+			if (parse_exception == null && eeblock.parse_exception != null)
+				parse_exception = eeblock.parse_exception;
+
 			CheckFile(false);
 
 			for (record = 0; record < eeblock.size(); record++) {
 				AltosEepromRecord r = eeblock.get(record);
 
-				String log_line = String.format("%c %4x %4x %4x\n",
-								r.cmd, r.tick, r.a, r.b);
-				if (eeprom_file != null)
-					eeprom_file.write(log_line);
-				else
-					eeprom_pending.add(log_line);
+				if (r.cmd != Altos.AO_LOG_INVALID) {
+					String log_line = String.format("%c %4x %4x %4x\n",
+									r.cmd, r.tick, r.a, r.b);
+					if (eeprom_file != null)
+						eeprom_file.write(log_line);
+					else
+						eeprom_pending.add(log_line);
+				}
 			}
 		}
 		CheckFile(true);
@@ -148,20 +154,21 @@ public class AltosEepromDownload implements Runnable {
 		}
 	}
 
-	private void show_error_internal(String message, String title) {
+	private void show_message_internal(String message, String title, int message_type) {
 		JOptionPane.showMessageDialog(frame,
 					      message,
 					      title,
-					      JOptionPane.ERROR_MESSAGE);
+					      message_type);
 	}
 
-	private void show_error(String in_message, String in_title) {
+	private void show_message(String in_message, String in_title, int in_message_type) {
 		final String message = in_message;
 		final String title = in_title;
+		final int message_type = in_message_type;
 		Runnable r = new Runnable() {
 				public void run() {
 					try {
-						show_error_internal(message, title);
+						show_message_internal(message, title, message_type);
 					} catch (Exception ex) {
 					}
 				}
@@ -174,21 +181,33 @@ public class AltosEepromDownload implements Runnable {
 			serial_line.start_remote();
 
 		try {
+			boolean	failed = false;
 			for (AltosEepromLog log : flights) {
+				parse_exception = null;
 				if (log.download) {
 					monitor.reset();
 					CaptureLog(log);
 				}
+				if (parse_exception != null) {
+					failed = true;
+					show_message(String.format("Flight %d download error\n%s\nValid log data saved",
+								   log.flight,
+								   parse_exception.getMessage()),
+						     serial_line.device.toShortString(),
+						     JOptionPane.WARNING_MESSAGE);
+				}
 			}
-			success = true;
+			success = !failed;
 		} catch (IOException ee) {
-			show_error (serial_line.device.toShortString(),
-				    ee.getLocalizedMessage());
+			show_message(ee.getLocalizedMessage(),
+				     serial_line.device.toShortString(),
+				     JOptionPane.ERROR_MESSAGE);
 		} catch (InterruptedException ie) {
 		} catch (TimeoutException te) {
-			show_error (String.format("Connection to \"%s\" failed",
-						  serial_line.device.toShortString()),
-				    "Connection Failed");
+			show_message(String.format("Connection to \"%s\" failed",
+						   serial_line.device.toShortString()),
+				     "Connection Failed",
+				     JOptionPane.ERROR_MESSAGE);
 		}
 		if (remote)
 			serial_line.stop_remote();