--- /dev/null
+/*
+ * Copyright © 2010 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+package altosui;
+
+import java.io.*;
+import java.lang.*;
+import java.util.*;
+import java.text.ParseException;
+import java.util.concurrent.LinkedBlockingQueue;
+
+/*
+ * This creates a thread to capture telemetry data and write it to
+ * a log file
+ */
+class AltosLog implements Runnable {
+
+ LinkedBlockingQueue<AltosLine> input_queue;
+ LinkedBlockingQueue<String> pending_queue;
+ int serial;
+ int flight;
+ FileWriter log_file;
+ Thread log_thread;
+
+ private void close_log_file() {
+ if (log_file != null) {
+ try {
+ log_file.close();
+ } catch (IOException io) {
+ }
+ log_file = null;
+ }
+ }
+
+ void close() {
+ close_log_file();
+ if (log_thread != null) {
+ log_thread.interrupt();
+ log_thread = null;
+ }
+ }
+
+ boolean open (AltosTelemetry telem) throws IOException {
+ AltosFile a = new AltosFile(telem);
+
+ log_file = new FileWriter(a, true);
+ if (log_file != null) {
+ while (!pending_queue.isEmpty()) {
+ try {
+ String s = pending_queue.take();
+ log_file.write(s);
+ log_file.write('\n');
+ } catch (InterruptedException ie) {
+ }
+ }
+ log_file.flush();
+ }
+ return log_file != null;
+ }
+
+ public void run () {
+ try {
+ for (;;) {
+ AltosLine line = input_queue.take();
+ if (line.line == null)
+ continue;
+ try {
+ AltosTelemetry telem = new AltosTelemetry(line.line);
+ if (telem.serial != serial || telem.flight != flight || log_file == null) {
+ close_log_file();
+ serial = telem.serial;
+ flight = telem.flight;
+ open(telem);
+ }
+ } catch (ParseException pe) {
+ } catch (AltosCRCException ce) {
+ }
+ if (log_file != null) {
+ log_file.write(line.line);
+ log_file.write('\n');
+ log_file.flush();
+ } else
+ pending_queue.put(line.line);
+ }
+ } catch (InterruptedException ie) {
+ } catch (IOException ie) {
+ }
+ close();
+ }
+
+ public AltosLog (AltosSerial s) {
+ pending_queue = new LinkedBlockingQueue<String> ();
+ input_queue = new LinkedBlockingQueue<AltosLine> ();
+ s.add_monitor(input_queue);
+ serial = -1;
+ flight = -1;
+ log_file = null;
+ log_thread = new Thread(this);
+ log_thread.start();
+ }
+}