471 lines
18 KiB
Java
471 lines
18 KiB
Java
/*
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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 static android.bluetooth.BluetoothUtils.getSyncTimeout;
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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 com.android.modules.utils.SynchronousResultReceiver;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.concurrent.TimeoutException;
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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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* <ul>
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* <li> {@link #EXTRA_STATE} - The current state of the profile. </li>
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* <li> {@link #EXTRA_PREVIOUS_STATE}- The previous state of the profile.</li>
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* <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. </li>
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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
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* {@link #STATE_DISCONNECTED}, {@link #STATE_CONNECTING},
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* {@link #STATE_CONNECTED}, {@link #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(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 final BluetoothProfileConnector<IBluetoothPbapClient> mProfileConnector =
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new BluetoothProfileConnector(this, BluetoothProfile.PBAP_CLIENT,
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"BluetoothPbapClient", IBluetoothPbapClient.class.getName()) {
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@Override
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public IBluetoothPbapClient getServiceInterface(IBinder service) {
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return IBluetoothPbapClient.Stub.asInterface(service);
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}
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};
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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, ServiceListener listener, 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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mProfileConnector.connect(context, listener);
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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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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.
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* Other public functions of BluetoothPbapClient will return default error
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* results once close() has been called. Multiple invocations of close()
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* are ok.
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*
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* @hide
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*/
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public synchronized void close() {
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mProfileConnector.disconnect();
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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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private IBluetoothPbapClient getService() {
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return mProfileConnector.getService();
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}
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/**
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* Initiate connection.
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* Upon successful connection to remote PBAP server the Client will
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* attempt 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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*
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* @hide
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*/
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@RequiresBluetoothConnectPermission
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@RequiresPermission(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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final boolean defaultValue = false;
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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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final SynchronousResultReceiver<Boolean> recv = SynchronousResultReceiver.get();
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service.connect(device, mAttributionSource, recv);
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return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue);
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} catch (RemoteException | TimeoutException 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 defaultValue;
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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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*
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* @hide
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*/
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@RequiresBluetoothConnectPermission
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@RequiresPermission(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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final boolean defaultValue = true;
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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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final SynchronousResultReceiver<Boolean> recv = SynchronousResultReceiver.get();
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service.disconnect(device, mAttributionSource, recv);
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recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue);
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return true;
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} catch (RemoteException | TimeoutException 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 defaultValue;
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}
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/**
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* {@inheritDoc}
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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(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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final List<BluetoothDevice> defaultValue = new ArrayList<BluetoothDevice>();
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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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final SynchronousResultReceiver<List<BluetoothDevice>> recv =
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SynchronousResultReceiver.get();
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service.getConnectedDevices(mAttributionSource, recv);
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return Attributable.setAttributionSource(
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recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue),
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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.rethrowFromSystemServer();
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} catch (TimeoutException 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 defaultValue;
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}
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/**
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* {@inheritDoc}
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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(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
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@NonNull 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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final List<BluetoothDevice> defaultValue = new ArrayList<BluetoothDevice>();
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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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final SynchronousResultReceiver<List<BluetoothDevice>> recv =
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SynchronousResultReceiver.get();
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service.getDevicesMatchingConnectionStates(states, mAttributionSource, recv);
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return Attributable.setAttributionSource(
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recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue),
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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.rethrowFromSystemServer();
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} catch (TimeoutException 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 defaultValue;
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}
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/**
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* {@inheritDoc}
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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(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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final int defaultValue = BluetoothProfile.STATE_DISCONNECTED;
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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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final SynchronousResultReceiver<Integer> recv = SynchronousResultReceiver.get();
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service.getConnectionState(device, mAttributionSource, recv);
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return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue);
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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.rethrowFromSystemServer();
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} catch (TimeoutException 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 defaultValue;
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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.
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* Priority can be one of {@link #PRIORITY_ON} or {@link #PRIORITY_OFF},
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*
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* @param device Paired bluetooth device
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* @param priority
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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(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.
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* Connection policy can be one of {@link #CONNECTION_POLICY_ALLOWED},
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* {@link #CONNECTION_POLICY_FORBIDDEN}, {@link #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(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(@NonNull BluetoothDevice device,
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@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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final boolean defaultValue = false;
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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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&& (connectionPolicy == BluetoothProfile.CONNECTION_POLICY_FORBIDDEN
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|| connectionPolicy == BluetoothProfile.CONNECTION_POLICY_ALLOWED)) {
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try {
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final SynchronousResultReceiver<Boolean> recv = SynchronousResultReceiver.get();
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service.setConnectionPolicy(device, connectionPolicy, mAttributionSource, recv);
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return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue);
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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.rethrowFromSystemServer();
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} catch (TimeoutException 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 defaultValue;
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}
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/**
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* Get the priority of the profile.
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*
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* <p> The priority can be any of:
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* {@link #PRIORITY_OFF}, {@link #PRIORITY_ON}, {@link #PRIORITY_UNDEFINED}
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*
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* @param device Bluetooth device
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* @return priority of the device
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* @hide
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*/
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@RequiresBluetoothConnectPermission
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@RequiresPermission(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 int getPriority(BluetoothDevice device) {
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if (VDBG) log("getPriority(" + device + ")");
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return BluetoothAdapter.connectionPolicyToPriority(getConnectionPolicy(device));
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}
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/**
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* Get the connection policy of the profile.
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*
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* <p> The connection policy can be any of:
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* {@link #CONNECTION_POLICY_ALLOWED}, {@link #CONNECTION_POLICY_FORBIDDEN},
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* {@link #CONNECTION_POLICY_UNKNOWN}
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*
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* @param device Bluetooth device
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* @return connection policy of the device
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* @hide
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*/
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@SystemApi
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@RequiresBluetoothConnectPermission
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@RequiresPermission(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 @ConnectionPolicy int getConnectionPolicy(@NonNull BluetoothDevice device) {
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if (VDBG) {
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log("getConnectionPolicy(" + device + ")");
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}
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final IBluetoothPbapClient service = getService();
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final int defaultValue = BluetoothProfile.CONNECTION_POLICY_FORBIDDEN;
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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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final SynchronousResultReceiver<Integer> recv = SynchronousResultReceiver.get();
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service.getConnectionPolicy(device, mAttributionSource, recv);
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return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue);
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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.rethrowFromSystemServer();
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} catch (TimeoutException 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 defaultValue;
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}
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}
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