From 3fe5c2f9fc01258d45c20070e9874d76bc6c8c07 Mon Sep 17 00:00:00 2001
From: Mike Beattie <mike@ethernal.org>
Date: Tue, 18 Sep 2012 23:47:50 +1200
Subject: [PATCH 1/1] altosdroid: initial implementation of telemetry logging.

Signed-off-by: Mike Beattie <mike@ethernal.org>
---
 altosdroid/AndroidManifest.xml                |  1 +
 altosdroid/Makefile.am                        |  1 +
 .../AltosDroid/TelemetryLogger.java           | 73 +++++++++++++++++++
 .../AltosDroid/TelemetryService.java          |  8 ++
 4 files changed, 83 insertions(+)
 create mode 100644 altosdroid/src/org/altusmetrum/AltosDroid/TelemetryLogger.java

diff --git a/altosdroid/AndroidManifest.xml b/altosdroid/AndroidManifest.xml
index 12391759..7147c0b1 100644
--- a/altosdroid/AndroidManifest.xml
+++ b/altosdroid/AndroidManifest.xml
@@ -22,6 +22,7 @@
     <uses-sdk android:targetSdkVersion="10" android:minSdkVersion="10"/>
     <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
     <uses-permission android:name="android.permission.BLUETOOTH" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 
     <application android:label="@string/app_name"
                  android:icon="@drawable/app_icon" >
diff --git a/altosdroid/Makefile.am b/altosdroid/Makefile.am
index c06afebe..96831b72 100644
--- a/altosdroid/Makefile.am
+++ b/altosdroid/Makefile.am
@@ -27,6 +27,7 @@ SRC=\
 	$(SRC_DIR)/AltosVoice.java \
 	$(SRC_DIR)/TelemetryService.java \
 	$(SRC_DIR)/TelemetryReader.java \
+	$(SRC_DIR)/TelemetryLogger.java \
 	$(SRC_DIR)/AltosBluetooth.java \
 	$(SRC_DIR)/DeviceListActivity.java \
 	$(SRC_DIR)/Dumper.java
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);
+	}
+
+}
diff --git a/altosdroid/src/org/altusmetrum/AltosDroid/TelemetryService.java b/altosdroid/src/org/altusmetrum/AltosDroid/TelemetryService.java
index 393fd2f6..3cb498e8 100644
--- a/altosdroid/src/org/altusmetrum/AltosDroid/TelemetryService.java
+++ b/altosdroid/src/org/altusmetrum/AltosDroid/TelemetryService.java
@@ -76,6 +76,7 @@ public class TelemetryService extends Service {
 	private AltosBluetooth  mAltosBluetooth  = null;
 	private AltosConfigData mConfigData      = null;
 	private TelemetryReader mTelemetryReader = null;
+	private TelemetryLogger mTelemetryLogger = null;
 
 	// internally track state of bluetooth connection
 	private int state = STATE_NONE;
@@ -164,6 +165,11 @@ public class TelemetryService extends Service {
 			}
 			mTelemetryReader = null;
 		}
+		if (mTelemetryLogger != null) {
+			if (D) Log.d(TAG, "stopAltosBluetooth(): stopping TelemetryLogger");
+			mTelemetryLogger.stop();
+			mTelemetryLogger = null;
+		}
 		if (mAltosBluetooth != null) {
 			if (D) Log.d(TAG, "stopAltosBluetooth(): stopping AltosBluetooth");
 			mAltosBluetooth.close();
@@ -216,6 +222,8 @@ public class TelemetryService extends Service {
 
 		mTelemetryReader = new TelemetryReader(mAltosBluetooth, mHandler);
 		mTelemetryReader.start();
+		
+		mTelemetryLogger = new TelemetryLogger(this, mAltosBluetooth);
 	}
 
 
-- 
2.30.2