Merge "Add API in SettingsLib/BluetoothUtils to get the control Uri from Bluetooth metadata" into tm-dev am: 814f53c5e1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18349645

Change-Id: I0161de9f104761cc15c562ec44cc5485367a765d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

packages/SettingsLib/src/com/android/settingslib/bluetooth/BluetoothUtils.java

@@ -30,6 +30,9 @@ import com.android.settingslib.widget.AdaptiveOutlineDrawable;
 
 import java.io.IOException;
 import java.util.List;
+import java.util.Locale;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 public class BluetoothUtils {
     private static final String TAG = "BluetoothUtils";
@@ -39,6 +42,8 @@ public class BluetoothUtils {
 
     public static final int META_INT_ERROR = -1;
     public static final String BT_ADVANCED_HEADER_ENABLED = "bt_advanced_header_enabled";
+    private static final int METADATA_FAST_PAIR_CUSTOMIZED_FIELDS = 25;
+    private static final String KEY_HEARABLE_CONTROL_SLICE = "HEARABLE_CONTROL_SLICE_WITH_WIDTH";
 
     private static ErrorListener sErrorListener;
 
@@ -384,8 +389,43 @@ public class BluetoothUtils {
         return Uri.parse(data);
     }
 
+    /**
+     * Get URI Bluetooth metadata for extra control
+     *
+     * @param bluetoothDevice the BluetoothDevice to get metadata
+     * @return the URI metadata
+     */
+    public static String getControlUriMetaData(BluetoothDevice bluetoothDevice) {
+        String data = getStringMetaData(bluetoothDevice, METADATA_FAST_PAIR_CUSTOMIZED_FIELDS);
+        return extraTagValue(KEY_HEARABLE_CONTROL_SLICE, data);
+    }
+
     @SuppressLint("NewApi") // Hidden API made public
     private static boolean doesClassMatch(BluetoothClass btClass, int classId) {
         return btClass.doesClassMatch(classId);
     }
+
+    private static String extraTagValue(String tag, String metaData) {
+        if (TextUtils.isEmpty(metaData)) {
+            return null;
+        }
+        Pattern pattern = Pattern.compile(generateExpressionWithTag(tag, "(.*?)"));
+        Matcher matcher = pattern.matcher(metaData);
+        if (matcher.find()) {
+            return matcher.group(1);
+        }
+        return null;
+    }
+
+    private static String getTagStart(String tag) {
+        return String.format(Locale.ENGLISH, "<%s>", tag);
+    }
+
+    private static String getTagEnd(String tag) {
+        return String.format(Locale.ENGLISH, "</%s>", tag);
+    }
+
+    private static String generateExpressionWithTag(String tag, String value) {
+        return getTagStart(tag) + value + getTagEnd(tag);
+    }
 }

packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/BluetoothUtilsTest.java

@@ -51,6 +51,11 @@ public class BluetoothUtilsTest {
     private static final String STRING_METADATA = "string_metadata";
     private static final String BOOL_METADATA = "true";
     private static final String INT_METADATA = "25";
+    private static final int METADATA_FAST_PAIR_CUSTOMIZED_FIELDS = 25;
+    private static final String KEY_HEARABLE_CONTROL_SLICE = "HEARABLE_CONTROL_SLICE_WITH_WIDTH";
+    private static final String CONTROL_METADATA =
+            "<HEARABLE_CONTROL_SLICE_WITH_WIDTH>" + STRING_METADATA
+                    + "</HEARABLE_CONTROL_SLICE_WITH_WIDTH>";
 
     @Before
     public void setUp() {
@@ -151,6 +156,15 @@ public class BluetoothUtilsTest {
                 BluetoothDevice.METADATA_MAIN_ICON)).isNull();
     }
 
+    @Test
+    public void getControlUriMetaData_hasMetaData_returnsCorrectMetaData() {
+        when(mBluetoothDevice.getMetadata(METADATA_FAST_PAIR_CUSTOMIZED_FIELDS)).thenReturn(
+                CONTROL_METADATA.getBytes());
+
+        assertThat(BluetoothUtils.getControlUriMetaData(mBluetoothDevice)).isEqualTo(
+                STRING_METADATA);
+    }
+
     @Test
     public void isAdvancedDetailsHeader_untetheredHeadset_returnTrue() {
         when(mBluetoothDevice.getMetadata(