| /* |
| * 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. |
| */ |
| package com.android.server.location; |
| |
| import android.annotation.Nullable; |
| import android.hardware.contexthub.V1_1.Setting; |
| import android.hardware.contexthub.V1_1.SettingValue; |
| import android.os.RemoteException; |
| import android.util.Log; |
| |
| import java.util.NoSuchElementException; |
| |
| /** |
| * @hide |
| */ |
| public abstract class IContextHubWrapper { |
| private static final String TAG = "IContextHubWrapper"; |
| |
| /** |
| * Attempts to connect to the Contexthub HAL 1.0 service, if it exists. |
| * |
| * @return A valid IContextHubWrapper if the connection was successful, null otherwise. |
| */ |
| @Nullable |
| public static IContextHubWrapper maybeConnectTo1_0() { |
| android.hardware.contexthub.V1_0.IContexthub proxy = null; |
| try { |
| proxy = android.hardware.contexthub.V1_0.IContexthub.getService(true /* retry */); |
| } catch (RemoteException e) { |
| Log.e(TAG, "RemoteException while attaching to Context Hub HAL proxy", e); |
| } catch (NoSuchElementException e) { |
| Log.i(TAG, "Context Hub HAL service not found"); |
| } |
| |
| ContextHubWrapperV1_0 wrapper = null; |
| if (proxy != null) { |
| wrapper = new ContextHubWrapperV1_0(proxy); |
| } |
| |
| return wrapper; |
| } |
| |
| /** |
| * Attempts to connect to the Contexthub HAL 1.1 service, if it exists. |
| * |
| * @return A valid IContextHubWrapper if the connection was successful, null otherwise. |
| */ |
| @Nullable |
| public static IContextHubWrapper maybeConnectTo1_1() { |
| android.hardware.contexthub.V1_1.IContexthub proxy = null; |
| try { |
| proxy = android.hardware.contexthub.V1_1.IContexthub.getService(true /* retry */); |
| } catch (RemoteException e) { |
| Log.e(TAG, "RemoteException while attaching to Context Hub HAL proxy", e); |
| } catch (NoSuchElementException e) { |
| Log.i(TAG, "Context Hub HAL service not found"); |
| } |
| |
| ContextHubWrapperV1_1 wrapper = null; |
| if (proxy != null) { |
| wrapper = new ContextHubWrapperV1_1(proxy); |
| } |
| |
| return wrapper; |
| } |
| |
| /** |
| * @return A valid instance of Contexthub HAL 1.0. |
| */ |
| public abstract android.hardware.contexthub.V1_0.IContexthub getHub(); |
| |
| /** |
| * @return True if this version of the Contexthub HAL supports setting notifications. |
| */ |
| public abstract boolean supportsSettingNotifications(); |
| |
| /** |
| * Notifies the Contexthub implementation of a user setting change. |
| * |
| * @param setting The user setting that has changed. MUST be one of the values from the |
| * {@link Setting} enum |
| * @param newValue The value of the user setting that changed. MUST be one of the values |
| * from the {@link SettingValue} enum. |
| */ |
| public abstract void onSettingChanged(byte setting, byte newValue); |
| |
| private static class ContextHubWrapperV1_0 extends IContextHubWrapper { |
| private android.hardware.contexthub.V1_0.IContexthub mHub; |
| |
| ContextHubWrapperV1_0(android.hardware.contexthub.V1_0.IContexthub hub) { |
| mHub = hub; |
| } |
| |
| public android.hardware.contexthub.V1_0.IContexthub getHub() { |
| return mHub; |
| } |
| |
| public boolean supportsSettingNotifications() { |
| return false; |
| } |
| |
| public void onSettingChanged(byte setting, byte newValue) {} |
| } |
| |
| private static class ContextHubWrapperV1_1 extends IContextHubWrapper { |
| private android.hardware.contexthub.V1_1.IContexthub mHub; |
| |
| ContextHubWrapperV1_1(android.hardware.contexthub.V1_1.IContexthub hub) { |
| mHub = hub; |
| } |
| |
| public android.hardware.contexthub.V1_0.IContexthub getHub() { |
| return mHub; |
| } |
| |
| public boolean supportsSettingNotifications() { |
| return true; |
| } |
| |
| public void onSettingChanged(byte setting, byte newValue) { |
| try { |
| mHub.onSettingChanged(setting, newValue); |
| } catch (RemoteException e) { |
| Log.e(TAG, "Failed to send setting change to Contexthub", e); |
| } |
| } |
| } |
| } |