diff options
author | Bdale Garbee <bdale@gag.com> | 2012-09-12 20:01:22 -0600 |
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committer | Bdale Garbee <bdale@gag.com> | 2012-09-12 20:01:22 -0600 |
commit | 3b612efcd1dddc6a3d59012f7ed57754b1f798c2 (patch) | |
tree | 18d50713491ef96c5c127a309f870efb6c33f98d /altoslib/AltosLog.java | |
parent | e076773c1693e2a62bb828dee71c04c20dbab0a5 (diff) | |
parent | 01eb36408d7e0e826b431fcc1d3b2deb23607e0b (diff) |
Merge branch 'new-debian' into debian
Conflicts:
ChangeLog
debian/altos.install
debian/changelog
debian/control
debian/copyright
debian/dirs
debian/docs
debian/menu
debian/rules
src/Makefile
Diffstat (limited to 'altoslib/AltosLog.java')
-rw-r--r-- | altoslib/AltosLog.java | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/altoslib/AltosLog.java b/altoslib/AltosLog.java new file mode 100644 index 00000000..3c124700 --- /dev/null +++ b/altoslib/AltosLog.java @@ -0,0 +1,123 @@ +/* + * 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 org.altusmetrum.AltosLib; + +import java.io.*; +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; + AltosFile file; + + 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; + } + } + + File file() { + return file; + } + + boolean open (AltosRecord 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(); + file = a; + } + return log_file != null; + } + + public void run () { + try { + AltosRecord previous = null; + for (;;) { + AltosLine line = input_queue.take(); + if (line.line == null) + continue; + try { + AltosRecord telem = AltosTelemetry.parse(line.line, previous); + if (telem.serial != 0 && telem.flight != 0 && + (telem.serial != serial || telem.flight != flight || log_file == null)) + { + close_log_file(); + serial = telem.serial; + flight = telem.flight; + open(telem); + } + previous = 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 (AltosLink link) { + pending_queue = new LinkedBlockingQueue<String> (); + input_queue = new LinkedBlockingQueue<AltosLine> (); + link.add_monitor(input_queue); + serial = -1; + flight = -1; + log_file = null; + log_thread = new Thread(this); + log_thread.start(); + } +} |