Removed Bluetooh ScanFilter hidden API usage.

Replaced hidden API usage in Companion by public
methods.

Tag: #feature
Bug: 200202917
Test: atest CompanionTests
Change-Id: Ifc7cdcbf40e23d1c8870e4dcd44772dcae55120a

6 files changed, 191 insertions, 8 deletions

diff --git a/core/java/android/companion/BluetoothDeviceFilterUtils.java b/core/java/android/companion/BluetoothDeviceFilterUtils.java
index 5e2340cee0f9..ef5f84c42a16 100644
--- a/core/java/android/companion/BluetoothDeviceFilterUtils.java
+++ b/core/java/android/companion/BluetoothDeviceFilterUtils.java
@@ -22,7 +22,6 @@ import static android.text.TextUtils.firstNotEmpty;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.bluetooth.BluetoothDevice;
-import android.bluetooth.le.ScanFilter;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.net.wifi.ScanResult;
 import android.os.Build;
@@ -30,9 +29,13 @@ import android.os.ParcelUuid;
 import android.os.Parcelable;
 import android.util.Log;
 
+import com.android.internal.annotations.VisibleForTesting;
+
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
+import java.util.Objects;
+import java.util.UUID;
 import java.util.regex.Pattern;
 
 /** @hide */
@@ -73,12 +76,19 @@ public class BluetoothDeviceFilterUtils {
 
     static boolean matchesServiceUuid(ParcelUuid serviceUuid, ParcelUuid serviceUuidMask,
             BluetoothDevice device) {
-        ParcelUuid[] uuids = device.getUuids();
-        final boolean result = serviceUuid == null ||
-                ScanFilter.matchesServiceUuids(
-                        serviceUuid,
-                        serviceUuidMask,
-                        uuids == null ? Collections.emptyList() : Arrays.asList(uuids));
+        boolean result = false;
+        List<ParcelUuid> deviceUuids = device.getUuids() == null
+                ? Collections.emptyList() : Arrays.asList(device.getUuids());
+        if (serviceUuid == null) {
+            result = true;
+        } else {
+            for (ParcelUuid parcelUuid : deviceUuids) {
+                UUID uuidMask = serviceUuidMask == null ? null : serviceUuidMask.getUuid();
+                if (uuidsMaskedEquals(parcelUuid.getUuid(), serviceUuid.getUuid(), uuidMask)) {
+                    result = true;
+                }
+            }
+        }
         if (DEBUG) debugLogMatchResult(result, device, serviceUuid);
         return result;
     }
@@ -143,4 +153,23 @@ public class BluetoothDeviceFilterUtils {
             throw new IllegalArgumentException("Unknown device type: " + device);
         }
     }
+
+    /**
+     * Compares two {@link #UUID} with a {@link #UUID} mask.
+     *
+     * @param data first {@link #UUID}.
+     * @param uuid second {@link #UUID}.
+     * @param mask mask {@link #UUID}.
+     * @return true if both UUIDs are equals when masked, false otherwise.
+     */
+    @VisibleForTesting
+    public static boolean uuidsMaskedEquals(UUID data, UUID uuid, UUID mask) {
+        if (mask == null) {
+            return Objects.equals(data, uuid);
+        }
+        return (data.getLeastSignificantBits() & mask.getLeastSignificantBits())
+                == (uuid.getLeastSignificantBits() & mask.getLeastSignificantBits())
+                && (data.getMostSignificantBits() & mask.getMostSignificantBits())
+                == (uuid.getMostSignificantBits() & mask.getMostSignificantBits());
+    }
 }
diff --git a/core/java/android/companion/BluetoothLeDeviceFilter.java b/core/java/android/companion/BluetoothLeDeviceFilter.java
index 129190ee5b65..2a43851aa3e0 100644
--- a/core/java/android/companion/BluetoothLeDeviceFilter.java
+++ b/core/java/android/companion/BluetoothLeDeviceFilter.java
@@ -75,7 +75,7 @@ public final class BluetoothLeDeviceFilter implements DeviceFilter<ScanResult> {
             String renameSuffix, int renameBytesFrom, int renameBytesLength,
             int renameNameFrom, int renameNameLength, boolean renameBytesReverseOrder) {
         mNamePattern = namePattern;
-        mScanFilter = ObjectUtils.firstNotNull(scanFilter, ScanFilter.EMPTY);
+        mScanFilter = ObjectUtils.firstNotNull(scanFilter, new ScanFilter.Builder().build());
         mRawDataFilter = rawDataFilter;
         mRawDataFilterMask = rawDataFilterMask;
         mRenamePrefix = renamePrefix;
diff --git a/core/tests/companiontests/Android.bp b/core/tests/companiontests/Android.bp
new file mode 100644
index 000000000000..d31b8f470108
--- /dev/null
+++ b/core/tests/companiontests/Android.bp
@@ -0,0 +1,21 @@
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "frameworks_base_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_base_license"],
+}
+
+android_test {
+    name: "CompanionTests",
+    // Include all test java files.
+    srcs: ["src/**/*.java"],
+    libs: [
+        "android.test.runner",
+        "android.test.base",
+    ],
+    static_libs: ["junit"],
+    platform_apis: true,
+    certificate: "platform",
+}
diff --git a/core/tests/companiontests/AndroidManifest.xml b/core/tests/companiontests/AndroidManifest.xml
new file mode 100644
index 000000000000..f436d972a1d9
--- /dev/null
+++ b/core/tests/companiontests/AndroidManifest.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2011 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.android.companion.tests"
+          android:sharedUserId="android.uid.system" >
+
+    <application >
+        <uses-library android:name="android.test.runner" />
+    </application>
+    <instrumentation android:name="android.companion.CompanionTestRunner"
+            android:targetPackage="com.android.companion.tests"
+            android:label="Companion Tests" />
+
+</manifest>
diff --git a/core/tests/companiontests/src/android/companion/BluetoothDeviceFilterUtilsTest.java b/core/tests/companiontests/src/android/companion/BluetoothDeviceFilterUtilsTest.java
new file mode 100644
index 000000000000..1ddbbd8a4634
--- /dev/null
+++ b/core/tests/companiontests/src/android/companion/BluetoothDeviceFilterUtilsTest.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.companion;
+
+import android.os.ParcelUuid;
+import android.test.InstrumentationTestCase;
+
+public class BluetoothDeviceFilterUtilsTest extends InstrumentationTestCase {
+    private static final String TAG = "BluetoothDeviceFilterUtilsTest";
+
+    private final ParcelUuid mServiceUuid =
+            ParcelUuid.fromString("F0FFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF");
+    private final ParcelUuid mNonMatchingDeviceUuid =
+            ParcelUuid.fromString("FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF");
+    private final ParcelUuid mMatchingDeviceUuid =
+            ParcelUuid.fromString("F0FFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF");
+    private final ParcelUuid mMaskUuid =
+            ParcelUuid.fromString("FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF");
+    private final ParcelUuid mMatchingMaskUuid =
+            ParcelUuid.fromString("F0FFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF");
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+    }
+
+    public void testUuidsMaskedEquals() {
+        assertFalse(BluetoothDeviceFilterUtils.uuidsMaskedEquals(
+                mNonMatchingDeviceUuid.getUuid(),
+                mServiceUuid.getUuid(),
+                mMaskUuid.getUuid()));
+
+        assertTrue(BluetoothDeviceFilterUtils.uuidsMaskedEquals(
+                mMatchingDeviceUuid.getUuid(),
+                mServiceUuid.getUuid(),
+                mMaskUuid.getUuid()));
+
+        assertTrue(BluetoothDeviceFilterUtils.uuidsMaskedEquals(
+                mNonMatchingDeviceUuid.getUuid(),
+                mServiceUuid.getUuid(),
+                mMatchingMaskUuid.getUuid()));
+    }
+}
diff --git a/core/tests/companiontests/src/android/companion/CompanionTestRunner.java b/core/tests/companiontests/src/android/companion/CompanionTestRunner.java
new file mode 100644
index 000000000000..caa2c685accc
--- /dev/null
+++ b/core/tests/companiontests/src/android/companion/CompanionTestRunner.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.companion;
+
+import android.os.Bundle;
+import android.test.InstrumentationTestRunner;
+import android.test.InstrumentationTestSuite;
+
+import junit.framework.TestSuite;
+
+
+/**
+ * Instrumentation test runner for Companion tests.
+ */
+public class CompanionTestRunner extends InstrumentationTestRunner {
+    private static final String TAG = "CompanionTestRunner";
+
+    @Override
+    public TestSuite getAllTests() {
+        TestSuite suite = new InstrumentationTestSuite(this);
+        suite.addTestSuite(BluetoothDeviceFilterUtilsTest.class);
+        return suite;
+    }
+
+    @Override
+    public ClassLoader getLoader() {
+        return CompanionTestRunner.class.getClassLoader();
+    }
+
+    @Override
+    public void onCreate(Bundle arguments) {
+        super.onCreate(arguments);
+    }
+}