| /* |
| * Copyright (C) 2016 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.bluetooth; |
| |
| import android.annotation.NonNull; |
| import android.annotation.RequiresPermission; |
| import android.annotation.SdkConstant; |
| import android.annotation.SdkConstant.SdkConstantType; |
| import android.annotation.SuppressLint; |
| import android.annotation.SystemApi; |
| import android.bluetooth.annotations.RequiresBluetoothConnectPermission; |
| import android.content.AttributionSource; |
| import android.content.Context; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.util.CloseGuard; |
| import android.util.Log; |
| |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * This class provides the APIs to control the Bluetooth PBAP Client Profile. |
| * |
| * @hide |
| */ |
| @SystemApi |
| public final class BluetoothPbapClient implements BluetoothProfile, AutoCloseable { |
| |
| private static final String TAG = "BluetoothPbapClient"; |
| private static final boolean DBG = false; |
| private static final boolean VDBG = false; |
| |
| private final CloseGuard mCloseGuard; |
| |
| /** |
| * Intent used to broadcast the change in connection state of the PBAP Client profile. |
| * |
| * <p>This intent will have 3 extras: |
| * |
| * <ul> |
| * <li>{@link #EXTRA_STATE} - The current state of the profile. |
| * <li>{@link #EXTRA_PREVIOUS_STATE}- The previous state of the profile. |
| * <li>{@link BluetoothDevice#EXTRA_DEVICE} - The remote device. |
| * </ul> |
| * |
| * <p>{@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} can be any of {@link |
| * #STATE_DISCONNECTED}, {@link #STATE_CONNECTING}, {@link #STATE_CONNECTED}, {@link |
| * #STATE_DISCONNECTING}. |
| * |
| * @hide |
| */ |
| @SystemApi |
| @SuppressLint("ActionValue") |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission( |
| allOf = { |
| android.Manifest.permission.BLUETOOTH_CONNECT, |
| android.Manifest.permission.BLUETOOTH_PRIVILEGED, |
| }) |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| public static final String ACTION_CONNECTION_STATE_CHANGED = |
| "android.bluetooth.pbapclient.profile.action.CONNECTION_STATE_CHANGED"; |
| |
| /** There was an error trying to obtain the state */ |
| /** @hide */ |
| public static final int STATE_ERROR = -1; |
| |
| /** @hide */ |
| public static final int RESULT_FAILURE = 0; |
| |
| /** @hide */ |
| public static final int RESULT_SUCCESS = 1; |
| |
| /** Connection canceled before completion. */ |
| /** @hide */ |
| public static final int RESULT_CANCELED = 2; |
| |
| private final BluetoothAdapter mAdapter; |
| private final AttributionSource mAttributionSource; |
| |
| private IBluetoothPbapClient mService; |
| |
| /** |
| * Create a BluetoothPbapClient proxy object. |
| * |
| * @hide |
| */ |
| BluetoothPbapClient(Context context, BluetoothAdapter adapter) { |
| if (DBG) { |
| Log.d(TAG, "Create BluetoothPbapClient proxy object"); |
| } |
| mAdapter = adapter; |
| mAttributionSource = adapter.getAttributionSource(); |
| mService = null; |
| mCloseGuard = new CloseGuard(); |
| mCloseGuard.open("close"); |
| } |
| |
| /** @hide */ |
| @SuppressWarnings("Finalize") // TODO(b/314811467) |
| protected void finalize() { |
| if (mCloseGuard != null) { |
| mCloseGuard.warnIfOpen(); |
| } |
| close(); |
| } |
| |
| /** |
| * Close the connection to the backing service. Other public functions of BluetoothPbapClient |
| * will return default error results once close() has been called. Multiple invocations of |
| * close() are ok. |
| * |
| * @hide |
| */ |
| @Override |
| public synchronized void close() { |
| mAdapter.closeProfileProxy(this); |
| if (mCloseGuard != null) { |
| mCloseGuard.close(); |
| } |
| } |
| |
| /** @hide */ |
| @Override |
| public void onServiceConnected(IBinder service) { |
| mService = IBluetoothPbapClient.Stub.asInterface(service); |
| } |
| |
| /** @hide */ |
| @Override |
| public void onServiceDisconnected() { |
| mService = null; |
| } |
| |
| private IBluetoothPbapClient getService() { |
| return mService; |
| } |
| |
| /** @hide */ |
| @Override |
| public BluetoothAdapter getAdapter() { |
| return mAdapter; |
| } |
| |
| /** |
| * Initiate connection. Upon successful connection to remote PBAP server the Client will attempt |
| * to automatically download the users phonebook and call log. |
| * |
| * @param device a remote device we want connect to |
| * @return <code>true</code> if command has been issued successfully; <code>false</code> |
| * otherwise; |
| * @hide |
| */ |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission( |
| allOf = { |
| android.Manifest.permission.BLUETOOTH_CONNECT, |
| android.Manifest.permission.BLUETOOTH_PRIVILEGED, |
| }) |
| public boolean connect(BluetoothDevice device) { |
| if (DBG) { |
| log("connect(" + device + ") for PBAP Client."); |
| } |
| 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.connect(device, mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Initiate disconnect. |
| * |
| * @param device Remote Bluetooth Device |
| * @return false on error, true otherwise |
| * @hide |
| */ |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission( |
| allOf = { |
| android.Manifest.permission.BLUETOOTH_CONNECT, |
| android.Manifest.permission.BLUETOOTH_PRIVILEGED, |
| }) |
| public boolean disconnect(BluetoothDevice device) { |
| if (DBG) { |
| log("disconnect(" + device + ")" + new Exception()); |
| } |
| 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.disconnect(device, mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @hide |
| */ |
| @SystemApi |
| @Override |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission( |
| allOf = { |
| android.Manifest.permission.BLUETOOTH_CONNECT, |
| android.Manifest.permission.BLUETOOTH_PRIVILEGED, |
| }) |
| public @NonNull List<BluetoothDevice> getConnectedDevices() { |
| if (DBG) { |
| log("getConnectedDevices()"); |
| } |
| 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()) { |
| try { |
| return Attributable.setAttributionSource( |
| service.getConnectedDevices(mAttributionSource), mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); |
| throw e.rethrowAsRuntimeException(); |
| } |
| } |
| return Collections.emptyList(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @hide |
| */ |
| @SystemApi |
| @Override |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission( |
| allOf = { |
| android.Manifest.permission.BLUETOOTH_CONNECT, |
| android.Manifest.permission.BLUETOOTH_PRIVILEGED, |
| }) |
| @NonNull |
| public List<BluetoothDevice> getDevicesMatchingConnectionStates(@NonNull int[] states) { |
| if (DBG) { |
| log("getDevicesMatchingStates()"); |
| } |
| 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()) { |
| try { |
| return Attributable.setAttributionSource( |
| service.getDevicesMatchingConnectionStates(states, mAttributionSource), |
| mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); |
| throw e.rethrowAsRuntimeException(); |
| } |
| } |
| return Collections.emptyList(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @hide |
| */ |
| @SystemApi |
| @Override |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission( |
| allOf = { |
| android.Manifest.permission.BLUETOOTH_CONNECT, |
| android.Manifest.permission.BLUETOOTH_PRIVILEGED, |
| }) |
| public @BtProfileState int getConnectionState(@NonNull BluetoothDevice device) { |
| if (DBG) { |
| log("getConnectionState(" + 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.getConnectionState(device, mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); |
| throw e.rethrowAsRuntimeException(); |
| } |
| } |
| return BluetoothProfile.STATE_DISCONNECTED; |
| } |
| |
| private static void log(String msg) { |
| Log.d(TAG, msg); |
| } |
| |
| private boolean isEnabled() { |
| return mAdapter.isEnabled(); |
| } |
| |
| private static boolean isValidDevice(BluetoothDevice device) { |
| return device != null && BluetoothAdapter.checkBluetoothAddress(device.getAddress()); |
| } |
| |
| /** |
| * Set priority of the profile |
| * |
| * <p>The device should already be paired. Priority can be one of {@link #PRIORITY_ON} or {@link |
| * #PRIORITY_OFF}, |
| * |
| * @param device Paired bluetooth device |
| * @return true if priority is set, false on error |
| * @hide |
| */ |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission( |
| allOf = { |
| android.Manifest.permission.BLUETOOTH_CONNECT, |
| android.Manifest.permission.BLUETOOTH_PRIVILEGED, |
| }) |
| public boolean setPriority(BluetoothDevice device, int priority) { |
| if (DBG) log("setPriority(" + device + ", " + priority + ")"); |
| return setConnectionPolicy(device, BluetoothAdapter.priorityToConnectionPolicy(priority)); |
| } |
| |
| /** |
| * Set connection policy of the profile |
| * |
| * <p>The device should already be paired. Connection policy can be one of {@link |
| * #CONNECTION_POLICY_ALLOWED}, {@link #CONNECTION_POLICY_FORBIDDEN}, {@link |
| * #CONNECTION_POLICY_UNKNOWN} |
| * |
| * @param device Paired bluetooth device |
| * @param connectionPolicy is the connection policy to set to for this profile |
| * @return true if connectionPolicy is set, false on error |
| * @hide |
| */ |
| @SystemApi |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission( |
| allOf = { |
| android.Manifest.permission.BLUETOOTH_CONNECT, |
| android.Manifest.permission.BLUETOOTH_PRIVILEGED, |
| }) |
| public boolean setConnectionPolicy( |
| @NonNull BluetoothDevice device, @ConnectionPolicy int connectionPolicy) { |
| if (DBG) { |
| log("setConnectionPolicy(" + device + ", " + connectionPolicy + ")"); |
| } |
| 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) |
| && (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; |
| } |
| } |
