Create vibrator manager HAL wrapper

Create wrapper class for the future IVibratorManager HAL service, with a
legacy implementation over existing IVibrator HAL services (using
existing wrappers and controller for those).

Bug: 166586119
Test: atest libvibratorservice_test
Change-Id: If20a7ab8398e4456d0665d8c3bd1d6806697ed5b
diff --git a/services/vibratorservice/VibratorManagerHalWrapper.cpp b/services/vibratorservice/VibratorManagerHalWrapper.cpp
new file mode 100644
index 0000000..71955af
--- /dev/null
+++ b/services/vibratorservice/VibratorManagerHalWrapper.cpp
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2020 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.
+ */
+
+#define LOG_TAG "VibratorManagerHalWrapper"
+
+#include <utils/Log.h>
+
+#include <vibratorservice/VibratorManagerHalWrapper.h>
+
+namespace android {
+
+namespace vibrator {
+
+constexpr int32_t SINGLE_VIBRATOR_ID = 0;
+
+HalResult<void> LegacyManagerHalWrapper::ping() {
+    return mController->ping();
+}
+
+void LegacyManagerHalWrapper::tryReconnect() {
+    mController->tryReconnect();
+}
+
+HalResult<std::vector<int32_t>> LegacyManagerHalWrapper::getVibratorIds() {
+    if (mController->init()) {
+        return HalResult<std::vector<int32_t>>::ok(std::vector<int32_t>(1, SINGLE_VIBRATOR_ID));
+    }
+    // Controller.init did not connect to any vibrator HAL service, so the device has no vibrator.
+    return HalResult<std::vector<int32_t>>::ok(std::vector<int32_t>());
+}
+
+HalResult<std::shared_ptr<HalController>> LegacyManagerHalWrapper::getVibrator(int32_t id) {
+    if (id == SINGLE_VIBRATOR_ID && mController->init()) {
+        return HalResult<std::shared_ptr<HalController>>::ok(mController);
+    }
+    // Controller.init did not connect to any vibrator HAL service, so the device has no vibrator.
+    return HalResult<std::shared_ptr<HalController>>::failed("No vibrator with id = " +
+                                                             std::to_string(id));
+}
+
+HalResult<void> LegacyManagerHalWrapper::prepareSynced(const std::vector<int32_t>&) {
+    return HalResult<void>::unsupported();
+}
+
+HalResult<void> LegacyManagerHalWrapper::triggerSynced(const std::function<void()>&) {
+    return HalResult<void>::unsupported();
+}
+
+HalResult<void> LegacyManagerHalWrapper::cancelSynced() {
+    return HalResult<void>::unsupported();
+}
+
+}; // namespace vibrator
+
+}; // namespace android