git.gag.com Git - fw/altos/blob - altosui/AltosTelemetryReader.java

   1 /*
   2  * Copyright © 2010 Keith Packard <keithp@keithp.com>
   3  *
   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.
   7  *
   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.
  12  *
  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.
  16  */
  17
  18 package altosui;
  19
  20 import java.lang.*;
  21 import java.text.*;
  22 import java.io.*;
  23 import java.util.concurrent.*;
  24
  25 class AltosTelemetryReader extends AltosFlightReader {
  26         AltosDevice     device;
  27         AltosSerial     serial;
  28         AltosLog        log;
  29         AltosRecord     previous;
  30
  31         LinkedBlockingQueue<AltosLine> telem;
  32
  33         AltosRecord read() throws InterruptedException, ParseException, AltosCRCException, IOException {
  34                 AltosLine l = telem.take();
  35                 if (l.line == null)
  36                         throw new IOException("IO error");
  37                 AltosRecord     next = AltosTelemetry.parse(l.line, previous);
  38                 previous = next;
  39                 return next;
  40         }
  41
  42         void flush() {
  43                 telem.clear();
  44         }
  45
  46         void close(boolean interrupted) {
  47                 serial.remove_monitor(telem);
  48                 log.close();
  49                 serial.close();
  50         }
  51
  52         void set_channel(int channel) {
  53                 serial.set_channel(channel);
  54                 AltosPreferences.set_channel(device.getSerial(), channel);
  55         }
  56
  57         void set_telemetry(int telemetry) {
  58                 serial.set_telemetry(telemetry);
  59                 AltosPreferences.set_telemetry(device.getSerial(), telemetry);
  60         }
  61
  62         public AltosTelemetryReader (AltosDevice in_device)
  63                 throws FileNotFoundException, AltosSerialInUseException, IOException {
  64                 device = in_device;
  65                 serial = new AltosSerial(device);
  66                 log = new AltosLog(serial);
  67                 name = device.toShortString();
  68                 previous = null;
  69
  70                 telem = new LinkedBlockingQueue<AltosLine>();
  71                 serial.set_radio();
  72                 serial.add_monitor(telem);
  73         }
  74 }