Refoactor 2 util functions from DatabaseUtil to BatteyUtils.

Bug: 252407178
Test: presubmit
Change-Id: I393777186cc308298f0a8b76af4672b9012ed681

src/com/android/settings/fuelgauge/BatteryUtils.java

@@ -23,6 +23,7 @@ import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
+import android.os.BatteryManager;
 import android.os.BatteryStats;
 import android.os.BatteryStatsManager;
 import android.os.BatteryUsageStats;
@@ -397,8 +398,7 @@ public class BatteryUtils {
         final long startTime = System.currentTimeMillis();
 
         // Stuff we always need to get BatteryInfo
-        final Intent batteryBroadcast = mContext.registerReceiver(null,
+        final Intent batteryBroadcast = getBatteryIntent(mContext);
-                new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
 
         final long elapsedRealtimeUs = PowerUtil.convertMsToUs(
                 SystemClock.elapsedRealtime());
@@ -577,4 +577,19 @@ public class BatteryUtils {
 
         return -1L;
     }
+
+    /** Gets the latest sticky battery intent from the Android system. */
+    public static Intent getBatteryIntent(Context context) {
+        return context.registerReceiver(
+                /*receiver=*/ null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
+    }
+
+    /** Gets the battery level from the intent. */
+    public static int getBatteryLevel(Intent intent) {
+        final int level = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
+        final int scale = intent.getIntExtra(BatteryManager.EXTRA_SCALE, 0);
+        return scale == 0
+                ? -1 /*invalid battery level*/
+                : Math.round((level / (float) scale) * 100f);
+    }
 }

src/com/android/settings/fuelgauge/batteryusage/BatteryUsageBroadcastReceiver.java

@@ -25,6 +25,7 @@ import android.util.Log;
 
 import androidx.annotation.VisibleForTesting;
 
+import com.android.settings.fuelgauge.BatteryUtils;
 import com.android.settingslib.fuelgauge.BatteryStatus;
 
 import java.time.Duration;
@@ -64,7 +65,7 @@ public final class BatteryUsageBroadcastReceiver extends BroadcastReceiver {
     }
 
     private void tryToFetchUsageData(Context context) {
-        final Intent batteryIntent = DatabaseUtils.getBatteryIntent(context);
+        final Intent batteryIntent = BatteryUtils.getBatteryIntent(context);
         // Returns when battery is not fully charged.
         if (!BatteryStatus.isCharged(batteryIntent)) {
             return;

src/com/android/settings/fuelgauge/batteryusage/DatabaseUtils.java

@@ -19,7 +19,6 @@ import android.content.ContentResolver;
 import android.content.ContentValues;
 import android.content.Context;
 import android.content.Intent;
-import android.content.IntentFilter;
 import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
 import android.database.Cursor;
@@ -36,6 +35,7 @@ import android.util.Log;
 
 import androidx.annotation.VisibleForTesting;
 
+import com.android.settings.fuelgauge.BatteryUtils;
 import com.android.settings.fuelgauge.batteryusage.db.BatteryStateDatabase;
 import com.android.settingslib.fuelgauge.BatteryStatus;
 
@@ -141,24 +141,18 @@ public final class DatabaseUtils {
         });
     }
 
-    /** Gets the latest sticky battery intent from framework. */
-    static Intent getBatteryIntent(Context context) {
-        return context.registerReceiver(
-                /*receiver=*/ null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
-    }
-
     static List<ContentValues> sendBatteryEntryData(
             Context context,
             List<BatteryEntry> batteryEntryList,
             BatteryUsageStats batteryUsageStats) {
         final long startTime = System.currentTimeMillis();
-        final Intent intent = getBatteryIntent(context);
+        final Intent intent = BatteryUtils.getBatteryIntent(context);
         if (intent == null) {
             Log.e(TAG, "sendBatteryEntryData(): cannot fetch battery intent");
             clearMemory();
             return null;
         }
-        final int batteryLevel = getBatteryLevel(intent);
+        final int batteryLevel = BatteryUtils.getBatteryLevel(intent);
         final int batteryStatus = intent.getIntExtra(
                 BatteryManager.EXTRA_STATUS, BatteryManager.BATTERY_STATUS_UNKNOWN);
         final int batteryHealth = intent.getIntExtra(
@@ -306,14 +300,6 @@ public final class DatabaseUtils {
         return resultMap;
     }
 
-    private static int getBatteryLevel(Intent intent) {
-        final int level = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
-        final int scale = intent.getIntExtra(BatteryManager.EXTRA_SCALE, 0);
-        return scale == 0
-                ? -1 /*invalid battery level*/
-                : Math.round((level / (float) scale) * 100f);
-    }
-
     private static void clearMemory() {
         if (SystemClock.uptimeMillis() > CLEAR_MEMORY_THRESHOLD_MS) {
             return;