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;
25 import org.altusmetrum.AltosLib.*;
28 * This creates a thread to capture telemetry data and write it to
31 class AltosLog implements Runnable {
33 LinkedBlockingQueue<AltosLine> input_queue;
34 LinkedBlockingQueue<String> pending_queue;
41 private void close_log_file() {
42 if (log_file != null) {
45 } catch (IOException io) {
53 if (log_thread != null) {
54 log_thread.interrupt();
63 boolean open (AltosRecord telem) throws IOException {
64 AltosFile a = new AltosFile(telem);
66 System.out.printf("open %s\n", a.toString());
67 log_file = new FileWriter(a, true);
68 if (log_file != null) {
69 while (!pending_queue.isEmpty()) {
71 String s = pending_queue.take();
74 } catch (InterruptedException ie) {
80 return log_file != null;
85 AltosRecord previous = null;
87 AltosLine line = input_queue.take();
88 if (line.line == null)
91 AltosRecord telem = AltosTelemetry.parse(line.line, previous);
92 if (telem.serial != 0 && telem.flight != 0 &&
93 (telem.serial != serial || telem.flight != flight || log_file == null))
96 serial = telem.serial;
97 flight = telem.flight;
101 } catch (ParseException pe) {
102 } catch (AltosCRCException ce) {
104 if (log_file != null) {
105 log_file.write(line.line);
106 log_file.write('\n');
109 pending_queue.put(line.line);
111 } catch (InterruptedException ie) {
112 } catch (IOException ie) {
117 public AltosLog (AltosSerial s) {
118 pending_queue = new LinkedBlockingQueue<String> ();
119 input_queue = new LinkedBlockingQueue<AltosLine> ();
120 s.add_monitor(input_queue);
124 log_thread = new Thread(this);