2 * Copyright © 2010 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
23 import java.text.ParseException;
24 import java.util.concurrent.LinkedBlockingQueue;
27 * This creates a thread to capture telemetry data and write it to
30 class AltosLog implements Runnable {
32 LinkedBlockingQueue<AltosLine> input_queue;
33 LinkedBlockingQueue<String> pending_queue;
40 if (log_file != null) {
43 } catch (IOException io) {
46 if (log_thread != null)
47 log_thread.interrupt();
50 boolean open (AltosTelemetry telem) throws IOException {
51 AltosFile a = new AltosFile(telem);
53 log_file = new FileWriter(a, true);
54 if (log_file != null) {
55 while (!pending_queue.isEmpty()) {
57 String s = pending_queue.take();
60 } catch (InterruptedException ie) {
65 return log_file != null;
71 AltosLine line = input_queue.take();
72 if (line.line == null)
75 AltosTelemetry telem = new AltosTelemetry(line.line);
76 if (telem.serial != serial || telem.flight != flight || log_file == null) {
78 serial = telem.serial;
79 flight = telem.flight;
82 } catch (ParseException pe) {
83 } catch (AltosCRCException ce) {
85 if (log_file != null) {
86 log_file.write(line.line);
90 pending_queue.put(line.line);
92 } catch (InterruptedException ie) {
93 } catch (IOException ie) {
98 public AltosLog (AltosSerial s) {
99 pending_queue = new LinkedBlockingQueue<String> ();
100 input_queue = new LinkedBlockingQueue<AltosLine> ();
101 s.add_monitor(input_queue);
105 log_thread = new Thread(this);