456 lines
15 KiB
Java
456 lines
15 KiB
Java
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/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.bluetooth;
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import android.annotation.NonNull;
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import android.annotation.RequiresPermission;
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import android.annotation.SdkConstant;
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import android.annotation.SdkConstant.SdkConstantType;
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import android.annotation.SuppressLint;
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import android.annotation.SystemApi;
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import android.bluetooth.annotations.RequiresBluetoothConnectPermission;
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import android.content.AttributionSource;
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import android.content.Context;
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import android.os.IBinder;
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import android.os.RemoteException;
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import android.util.CloseGuard;
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import android.util.Log;
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import java.util.Collections;
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import java.util.List;
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/**
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* This class provides the APIs to control the Bluetooth PBAP Client Profile.
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*
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* @hide
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*/
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@SystemApi
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public final class BluetoothPbapClient implements BluetoothProfile, AutoCloseable {
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private static final String TAG = "BluetoothPbapClient";
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private static final boolean DBG = false;
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private static final boolean VDBG = false;
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private final CloseGuard mCloseGuard;
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/**
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* Intent used to broadcast the change in connection state of the PBAP Client profile.
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*
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* <p>This intent will have 3 extras:
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*
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* <ul>
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* <li>{@link #EXTRA_STATE} - The current state of the profile.
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* <li>{@link #EXTRA_PREVIOUS_STATE}- The previous state of the profile.
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* <li>{@link BluetoothDevice#EXTRA_DEVICE} - The remote device.
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* </ul>
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*
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* <p>{@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} can be any of {@link
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* #STATE_DISCONNECTED}, {@link #STATE_CONNECTING}, {@link #STATE_CONNECTED}, {@link
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* #STATE_DISCONNECTING}.
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*
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* @hide
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*/
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@SystemApi
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@SuppressLint("ActionValue")
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@RequiresBluetoothConnectPermission
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@RequiresPermission(
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allOf = {
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android.Manifest.permission.BLUETOOTH_CONNECT,
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android.Manifest.permission.BLUETOOTH_PRIVILEGED,
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})
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@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
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public static final String ACTION_CONNECTION_STATE_CHANGED =
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"android.bluetooth.pbapclient.profile.action.CONNECTION_STATE_CHANGED";
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/** There was an error trying to obtain the state */
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/** @hide */
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public static final int STATE_ERROR = -1;
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/** @hide */
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public static final int RESULT_FAILURE = 0;
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/** @hide */
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public static final int RESULT_SUCCESS = 1;
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/** Connection canceled before completion. */
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/** @hide */
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public static final int RESULT_CANCELED = 2;
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private final BluetoothAdapter mAdapter;
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private final AttributionSource mAttributionSource;
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private IBluetoothPbapClient mService;
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/**
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* Create a BluetoothPbapClient proxy object.
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*
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* @hide
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*/
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BluetoothPbapClient(Context context, BluetoothAdapter adapter) {
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if (DBG) {
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Log.d(TAG, "Create BluetoothPbapClient proxy object");
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}
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mAdapter = adapter;
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mAttributionSource = adapter.getAttributionSource();
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mService = null;
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mCloseGuard = new CloseGuard();
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mCloseGuard.open("close");
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}
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/** @hide */
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@SuppressWarnings("Finalize") // TODO(b/314811467)
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protected void finalize() {
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if (mCloseGuard != null) {
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mCloseGuard.warnIfOpen();
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}
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close();
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}
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/**
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* Close the connection to the backing service. Other public functions of BluetoothPbapClient
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* will return default error results once close() has been called. Multiple invocations of
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* close() are ok.
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*
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* @hide
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*/
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@Override
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public synchronized void close() {
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mAdapter.closeProfileProxy(this);
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if (mCloseGuard != null) {
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mCloseGuard.close();
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}
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}
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/** @hide */
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@Override
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public void onServiceConnected(IBinder service) {
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mService = IBluetoothPbapClient.Stub.asInterface(service);
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}
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/** @hide */
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@Override
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public void onServiceDisconnected() {
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mService = null;
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}
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private IBluetoothPbapClient getService() {
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return mService;
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}
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/** @hide */
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@Override
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public BluetoothAdapter getAdapter() {
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return mAdapter;
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}
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/**
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* Initiate connection. Upon successful connection to remote PBAP server the Client will attempt
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* to automatically download the users phonebook and call log.
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*
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* @param device a remote device we want connect to
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* @return <code>true</code> if command has been issued successfully; <code>false</code>
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* otherwise;
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* @hide
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*/
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@RequiresBluetoothConnectPermission
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@RequiresPermission(
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allOf = {
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android.Manifest.permission.BLUETOOTH_CONNECT,
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android.Manifest.permission.BLUETOOTH_PRIVILEGED,
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})
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public boolean connect(BluetoothDevice device) {
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if (DBG) {
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log("connect(" + device + ") for PBAP Client.");
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}
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final IBluetoothPbapClient service = getService();
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if (service == null) {
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Log.w(TAG, "Proxy not attached to service");
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if (DBG) log(Log.getStackTraceString(new Throwable()));
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} else if (isEnabled() && isValidDevice(device)) {
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try {
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return service.connect(device, mAttributionSource);
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} catch (RemoteException e) {
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Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
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}
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}
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return false;
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}
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/**
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* Initiate disconnect.
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*
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* @param device Remote Bluetooth Device
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* @return false on error, true otherwise
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* @hide
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*/
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@RequiresBluetoothConnectPermission
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@RequiresPermission(
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allOf = {
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android.Manifest.permission.BLUETOOTH_CONNECT,
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android.Manifest.permission.BLUETOOTH_PRIVILEGED,
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})
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public boolean disconnect(BluetoothDevice device) {
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if (DBG) {
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log("disconnect(" + device + ")" + new Exception());
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}
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final IBluetoothPbapClient service = getService();
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if (service == null) {
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Log.w(TAG, "Proxy not attached to service");
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if (DBG) log(Log.getStackTraceString(new Throwable()));
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} else if (isEnabled() && isValidDevice(device)) {
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try {
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return service.disconnect(device, mAttributionSource);
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} catch (RemoteException e) {
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Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
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}
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}
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return false;
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}
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/**
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* {@inheritDoc}
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*
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* @hide
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*/
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@SystemApi
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@Override
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@RequiresBluetoothConnectPermission
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@RequiresPermission(
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allOf = {
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android.Manifest.permission.BLUETOOTH_CONNECT,
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android.Manifest.permission.BLUETOOTH_PRIVILEGED,
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})
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public @NonNull List<BluetoothDevice> getConnectedDevices() {
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if (DBG) {
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log("getConnectedDevices()");
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}
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final IBluetoothPbapClient service = getService();
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if (service == null) {
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Log.w(TAG, "Proxy not attached to service");
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if (DBG) log(Log.getStackTraceString(new Throwable()));
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} else if (isEnabled()) {
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try {
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return Attributable.setAttributionSource(
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service.getConnectedDevices(mAttributionSource), mAttributionSource);
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} catch (RemoteException e) {
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Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
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throw e.rethrowAsRuntimeException();
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}
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}
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return Collections.emptyList();
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}
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/**
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* {@inheritDoc}
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*
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* @hide
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*/
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@SystemApi
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@Override
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@RequiresBluetoothConnectPermission
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@RequiresPermission(
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allOf = {
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android.Manifest.permission.BLUETOOTH_CONNECT,
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android.Manifest.permission.BLUETOOTH_PRIVILEGED,
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})
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@NonNull
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public List<BluetoothDevice> getDevicesMatchingConnectionStates(@NonNull int[] states) {
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if (DBG) {
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log("getDevicesMatchingStates()");
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}
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final IBluetoothPbapClient service = getService();
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if (service == null) {
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Log.w(TAG, "Proxy not attached to service");
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if (DBG) log(Log.getStackTraceString(new Throwable()));
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} else if (isEnabled()) {
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try {
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return Attributable.setAttributionSource(
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service.getDevicesMatchingConnectionStates(states, mAttributionSource),
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mAttributionSource);
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} catch (RemoteException e) {
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Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
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throw e.rethrowAsRuntimeException();
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}
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}
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return Collections.emptyList();
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}
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/**
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* {@inheritDoc}
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*
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* @hide
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*/
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@SystemApi
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@Override
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@RequiresBluetoothConnectPermission
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@RequiresPermission(
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allOf = {
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android.Manifest.permission.BLUETOOTH_CONNECT,
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android.Manifest.permission.BLUETOOTH_PRIVILEGED,
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})
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public @BtProfileState int getConnectionState(@NonNull BluetoothDevice device) {
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if (DBG) {
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log("getConnectionState(" + device + ")");
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}
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final IBluetoothPbapClient service = getService();
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if (service == null) {
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Log.w(TAG, "Proxy not attached to service");
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if (DBG) log(Log.getStackTraceString(new Throwable()));
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} else if (isEnabled() && isValidDevice(device)) {
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try {
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return service.getConnectionState(device, mAttributionSource);
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} catch (RemoteException e) {
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Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
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throw e.rethrowAsRuntimeException();
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}
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}
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return BluetoothProfile.STATE_DISCONNECTED;
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}
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private static void log(String msg) {
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Log.d(TAG, msg);
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}
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private boolean isEnabled() {
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return mAdapter.isEnabled();
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}
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private static boolean isValidDevice(BluetoothDevice device) {
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return device != null && BluetoothAdapter.checkBluetoothAddress(device.getAddress());
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}
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/**
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* Set priority of the profile
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*
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* <p>The device should already be paired. Priority can be one of {@link #PRIORITY_ON} or {@link
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* #PRIORITY_OFF},
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*
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* @param device Paired bluetooth device
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* @return true if priority is set, false on error
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* @hide
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*/
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@RequiresBluetoothConnectPermission
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@RequiresPermission(
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allOf = {
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android.Manifest.permission.BLUETOOTH_CONNECT,
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android.Manifest.permission.BLUETOOTH_PRIVILEGED,
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})
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public boolean setPriority(BluetoothDevice device, int priority) {
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if (DBG) log("setPriority(" + device + ", " + priority + ")");
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return setConnectionPolicy(device, BluetoothAdapter.priorityToConnectionPolicy(priority));
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}
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/**
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* Set connection policy of the profile
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*
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* <p>The device should already be paired. Connection policy can be one of {@link
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* #CONNECTION_POLICY_ALLOWED}, {@link #CONNECTION_POLICY_FORBIDDEN}, {@link
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* #CONNECTION_POLICY_UNKNOWN}
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*
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* @param device Paired bluetooth device
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* @param connectionPolicy is the connection policy to set to for this profile
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* @return true if connectionPolicy is set, false on error
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* @hide
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*/
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@SystemApi
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@RequiresBluetoothConnectPermission
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@RequiresPermission(
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allOf = {
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android.Manifest.permission.BLUETOOTH_CONNECT,
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android.Manifest.permission.BLUETOOTH_PRIVILEGED,
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})
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public boolean setConnectionPolicy(
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@NonNull BluetoothDevice device, @ConnectionPolicy int connectionPolicy) {
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if (DBG) {
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log("setConnectionPolicy(" + device + ", " + connectionPolicy + ")");
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}
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final IBluetoothPbapClient service = getService();
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if (service == null) {
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Log.w(TAG, "Proxy not attached to service");
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if (DBG) log(Log.getStackTraceString(new Throwable()));
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} else if (isEnabled()
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&& isValidDevice(device)
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|
&& (connectionPolicy == BluetoothProfile.CONNECTION_POLICY_FORBIDDEN
|
||
|
|
|| connectionPolicy == BluetoothProfile.CONNECTION_POLICY_ALLOWED)) {
|
||
|
|
try {
|
||
|
|
return service.setConnectionPolicy(device, connectionPolicy, mAttributionSource);
|
||
|
|
} catch (RemoteException e) {
|
||
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
||
|
|
throw e.rethrowAsRuntimeException();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the priority of the profile.
|
||
|
|
*
|
||
|
|
* <p>The priority can be any of: {@link #PRIORITY_OFF}, {@link #PRIORITY_ON}, {@link
|
||
|
|
* #PRIORITY_UNDEFINED}
|
||
|
|
*
|
||
|
|
* @param device Bluetooth device
|
||
|
|
* @return priority of the device
|
||
|
|
* @hide
|
||
|
|
*/
|
||
|
|
@RequiresBluetoothConnectPermission
|
||
|
|
@RequiresPermission(
|
||
|
|
allOf = {
|
||
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
||
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
||
|
|
})
|
||
|
|
public int getPriority(BluetoothDevice device) {
|
||
|
|
if (VDBG) log("getPriority(" + device + ")");
|
||
|
|
return BluetoothAdapter.connectionPolicyToPriority(getConnectionPolicy(device));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the connection policy of the profile.
|
||
|
|
*
|
||
|
|
* <p>The connection policy can be any of: {@link #CONNECTION_POLICY_ALLOWED}, {@link
|
||
|
|
* #CONNECTION_POLICY_FORBIDDEN}, {@link #CONNECTION_POLICY_UNKNOWN}
|
||
|
|
*
|
||
|
|
* @param device Bluetooth device
|
||
|
|
* @return connection policy of the device
|
||
|
|
* @hide
|
||
|
|
*/
|
||
|
|
@SystemApi
|
||
|
|
@RequiresBluetoothConnectPermission
|
||
|
|
@RequiresPermission(
|
||
|
|
allOf = {
|
||
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
||
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
||
|
|
})
|
||
|
|
public @ConnectionPolicy int getConnectionPolicy(@NonNull BluetoothDevice device) {
|
||
|
|
if (VDBG) {
|
||
|
|
log("getConnectionPolicy(" + device + ")");
|
||
|
|
}
|
||
|
|
final IBluetoothPbapClient service = getService();
|
||
|
|
if (service == null) {
|
||
|
|
Log.w(TAG, "Proxy not attached to service");
|
||
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
||
|
|
} else if (isEnabled() && isValidDevice(device)) {
|
||
|
|
try {
|
||
|
|
return service.getConnectionPolicy(device, mAttributionSource);
|
||
|
|
} catch (RemoteException e) {
|
||
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
||
|
|
throw e.rethrowAsRuntimeException();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return BluetoothProfile.CONNECTION_POLICY_FORBIDDEN;
|
||
|
|
}
|
||
|
|
}
|