X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=altosdroid%2Fsrc%2Forg%2Faltusmetrum%2FAltosDroid%2FTelemetryLogger.java;fp=altosdroid%2Fsrc%2Forg%2Faltusmetrum%2FAltosDroid%2FTelemetryLogger.java;h=b2dcdb48ecbe7d370df0500975415cb8b1a1533d;hb=2f2734bb418f5c3a89fa3f1bf1b98ce4cfe432e1;hp=0000000000000000000000000000000000000000;hpb=e69a433fd93b9f6bd2297d8045eb075fee29e73b;p=fw%2Faltos

diff --git a/altosdroid/src/org/altusmetrum/AltosDroid/TelemetryLogger.java b/altosdroid/src/org/altusmetrum/AltosDroid/TelemetryLogger.java
new file mode 100644
index 00000000..b2dcdb48
--- /dev/null
+++ b/altosdroid/src/org/altusmetrum/AltosDroid/TelemetryLogger.java
@@ -0,0 +1,73 @@
+package org.altusmetrum.AltosDroid;
+
+import org.altusmetrum.AltosLib.*;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.os.Environment;
+import android.util.Log;
+
+public class TelemetryLogger {
+	private static final String TAG = "TelemetryLogger";
+	private static final boolean D = true;
+
+	private Context   context = null;
+	private AltosLink link    = null;
+	private AltosLog  logger  = null;
+
+	private BroadcastReceiver mExternalStorageReceiver;
+
+	public TelemetryLogger(Context in_context, AltosLink in_link) {
+		context = in_context;
+		link    = in_link;
+
+		startWatchingExternalStorage();
+	}
+
+	public void stop() {
+		stopWatchingExternalStorage();
+		close();
+	}
+
+	private void close() {
+		if (logger != null) {
+			if (D) Log.d(TAG, "Shutting down Telemetry Logging");
+			logger.close();
+			logger = null;
+		}
+	}
+	
+	void handleExternalStorageState() {
+		String state = Environment.getExternalStorageState();
+		if (Environment.MEDIA_MOUNTED.equals(state)) {
+			if (logger == null) {
+				if (D) Log.d(TAG, "Starting up Telemetry Logging");
+				logger = new AltosLog(link);
+			}
+		} else {
+			if (D) Log.d(TAG, "External Storage not present - stopping");
+			close();
+		}
+	}
+
+	void startWatchingExternalStorage() {
+		mExternalStorageReceiver = new BroadcastReceiver() {
+			@Override
+			public void onReceive(Context context, Intent intent) {
+				handleExternalStorageState();
+			}
+		};
+		IntentFilter filter = new IntentFilter();
+		filter.addAction(Intent.ACTION_MEDIA_MOUNTED);
+		filter.addAction(Intent.ACTION_MEDIA_REMOVED);
+		context.registerReceiver(mExternalStorageReceiver, filter);
+		handleExternalStorageState();
+	}
+
+	void stopWatchingExternalStorage() {
+		context.unregisterReceiver(mExternalStorageReceiver);
+	}
+
+}