altosdroid: reload previous log file at connect time

[fw/altos] / altosdroid / src / org / altusmetrum / AltosDroid / TelemetryReader.java

diff --git a/altosdroid/src/org/altusmetrum/AltosDroid/TelemetryReader.java b/altosdroid/src/org/altusmetrum/AltosDroid/TelemetryReader.java
index 45604284e0767a405de80b2f5d6b8c66d77cb24a..bec518516f9113ac7b2c5749ba39fd872b97c947 100644 (file)
--- a/altosdroid/src/org/altusmetrum/AltosDroid/TelemetryReader.java
+++ b/altosdroid/src/org/altusmetrum/AltosDroid/TelemetryReader.java
@@ -25,7 +25,7 @@ import java.util.concurrent.*;
 import android.util.Log;
 import android.os.Handler;
 
-import org.altusmetrum.altoslib_2.*;
+import org.altusmetrum.altoslib_5.*;
 
 
 public class TelemetryReader extends Thread {
@@ -39,9 +39,17 @@ public class TelemetryReader extends Thread {
        AltosLink   link;
        AltosState  state = null;
 
+       AltosFlightReader       stacked;
+
        LinkedBlockingQueue<AltosLine> telemQueue;
 
        public AltosState read() throws ParseException, AltosCRCException, InterruptedException, IOException {
+               if (stacked != null) {
+                       state = stacked.read();
+                       if (state != null)
+                               return state;
+                       stacked = null;
+               }
                AltosLine l = telemQueue.take();
                if (l.line == null)
                        throw new IOException("IO error");
@@ -56,6 +64,10 @@ public class TelemetryReader extends Thread {
 
        public void close() {
                state = null;
+               if (stacked != null) {
+                       stacked.close(false);
+                       stacked = null;
+               }
                link.remove_monitor(telemQueue);
                link = null;
                telemQueue.clear();
@@ -66,7 +78,7 @@ public class TelemetryReader extends Thread {
                AltosState  state = null;
 
                try {
-                       for (;;) {
+                       while (telemQueue != null) {
                                try {
                                        state = read();
                                        handler.obtainMessage(TelemetryService.MSG_TELEMETRY, state).sendToTarget();
@@ -84,12 +96,39 @@ public class TelemetryReader extends Thread {
                }
        }
 
-       public TelemetryReader (AltosLink in_link, Handler in_handler) {
+       public TelemetryReader (AltosLink in_link, Handler in_handler, AltosFlightReader in_stacked) {
                link    = in_link;
                handler = in_handler;
+               stacked = in_stacked;
 
                state = null;
                telemQueue = new LinkedBlockingQueue<AltosLine>();
                link.add_monitor(telemQueue);
+               try {
+                       link.set_radio_frequency(AltosPreferences.frequency(link.serial));
+                       link.set_telemetry(AltosLib.ao_telemetry_standard);
+                       link.set_telemetry_rate(AltosPreferences.telemetry_rate(link.serial));
+               } catch (InterruptedException ee) {
+                       close();
+               } catch (TimeoutException te) {
+                       close();
+               }
+       }
+
+       private static AltosFlightReader existing_data(AltosLink link) {
+               if (link == null)
+                       return null;
+
+               File    file = AltosPreferences.logfile(link.serial);
+               if (file != null) {
+                       AltosStateIterable      iterable = AltosStateIterable.iterable(file);
+                       if (iterable != null)
+                               return new AltosReplayReader(iterable.iterator(), file, false);
+               }
+               return null;
+       }
+
+       public TelemetryReader(AltosLink link, Handler handler) {
+               this(link, handler, existing_data(link));
        }
 }