| /* |
| * Copyright (C) 2008 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 java.util.ArrayList; |
| import java.util.List; |
| |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.ServiceConnection; |
| import android.os.RemoteException; |
| import android.os.IBinder; |
| import android.os.ServiceManager; |
| import android.util.Log; |
| |
| /** |
| * This class provides the APIs to control the Bluetooth SIM |
| * Access Profile (SAP). |
| * |
| * <p>BluetoothSap is a proxy object for controlling the Bluetooth |
| * Service via IPC. Use {@link BluetoothAdapter#getProfileProxy} to get |
| * the BluetoothSap proxy object. |
| * |
| * <p>Each method is protected with its appropriate permission. |
| * @hide |
| */ |
| public final class BluetoothSap implements BluetoothProfile { |
| |
| private static final String TAG = "BluetoothSap"; |
| private static final boolean DBG = true; |
| private static final boolean VDBG = false; |
| |
| /** |
| * Intent used to broadcast the change in connection state of the profile. |
| * |
| * <p>This intent will have 4 extras: |
| * <ul> |
| * <li> {@link #EXTRA_STATE} - The current state of the profile. </li> |
| * <li> {@link #EXTRA_PREVIOUS_STATE}- The previous state of the profile.</li> |
| * <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. </li> |
| * </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}. |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission to |
| * receive. |
| * @hide |
| */ |
| public static final String ACTION_CONNECTION_STATE_CHANGED = |
| "android.bluetooth.sap.profile.action.CONNECTION_STATE_CHANGED"; |
| |
| private IBluetoothSap mService; |
| private final Context mContext; |
| private ServiceListener mServiceListener; |
| private BluetoothAdapter mAdapter; |
| |
| /** |
| * There was an error trying to obtain the state. |
| * @hide |
| */ |
| public static final int STATE_ERROR = -1; |
| |
| /** |
| * Connection state change succceeded. |
| * @hide |
| */ |
| public static final int RESULT_SUCCESS = 1; |
| |
| /** |
| * Connection canceled before completion. |
| * @hide |
| */ |
| public static final int RESULT_CANCELED = 2; |
| |
| final private IBluetoothStateChangeCallback mBluetoothStateChangeCallback = |
| new IBluetoothStateChangeCallback.Stub() { |
| public void onBluetoothStateChange(boolean up) { |
| if (DBG) Log.d(TAG, "onBluetoothStateChange: up=" + up); |
| if (!up) { |
| if (VDBG) Log.d(TAG,"Unbinding service..."); |
| synchronized (mConnection) { |
| try { |
| mService = null; |
| mContext.unbindService(mConnection); |
| } catch (Exception re) { |
| Log.e(TAG,"",re); |
| } |
| } |
| } else { |
| synchronized (mConnection) { |
| try { |
| if (mService == null) { |
| if (VDBG) Log.d(TAG,"Binding service..."); |
| doBind(); |
| } |
| } catch (Exception re) { |
| Log.e(TAG,"",re); |
| } |
| } |
| } |
| } |
| }; |
| |
| /** |
| * Create a BluetoothSap proxy object. |
| */ |
| /*package*/ BluetoothSap(Context context, ServiceListener l) { |
| if (DBG) Log.d(TAG, "Create BluetoothSap proxy object"); |
| mContext = context; |
| mServiceListener = l; |
| mAdapter = BluetoothAdapter.getDefaultAdapter(); |
| IBluetoothManager mgr = mAdapter.getBluetoothManager(); |
| if (mgr != null) { |
| try { |
| mgr.registerStateChangeCallback(mBluetoothStateChangeCallback); |
| } catch (RemoteException e) { |
| Log.e(TAG,"",e); |
| } |
| } |
| doBind(); |
| } |
| |
| boolean doBind() { |
| Intent intent = new Intent(IBluetoothMap.class.getName()); |
| ComponentName comp = intent.resolveSystemService(mContext.getPackageManager(), 0); |
| intent.setComponent(comp); |
| if (comp == null || !mContext.bindServiceAsUser(intent, mConnection, 0, |
| android.os.Process.myUserHandle())) { |
| Log.e(TAG, "Could not bind to Bluetooth SAP Service with " + intent); |
| return false; |
| } |
| return true; |
| } |
| |
| protected void finalize() throws Throwable { |
| try { |
| close(); |
| } finally { |
| super.finalize(); |
| } |
| } |
| |
| /** |
| * Close the connection to the backing service. |
| * Other public functions of BluetoothSap will return default error |
| * results once close() has been called. Multiple invocations of close() |
| * are ok. |
| * @hide |
| */ |
| public synchronized void close() { |
| IBluetoothManager mgr = mAdapter.getBluetoothManager(); |
| if (mgr != null) { |
| try { |
| mgr.unregisterStateChangeCallback(mBluetoothStateChangeCallback); |
| } catch (Exception e) { |
| Log.e(TAG,"",e); |
| } |
| } |
| |
| synchronized (mConnection) { |
| if (mService != null) { |
| try { |
| mService = null; |
| mContext.unbindService(mConnection); |
| } catch (Exception re) { |
| Log.e(TAG,"",re); |
| } |
| } |
| } |
| mServiceListener = null; |
| } |
| |
| /** |
| * Get the current state of the BluetoothSap service. |
| * @return One of the STATE_ return codes, or STATE_ERROR if this proxy |
| * object is currently not connected to the Sap service. |
| * @hide |
| */ |
| public int getState() { |
| if (VDBG) log("getState()"); |
| if (mService != null) { |
| try { |
| return mService.getState(); |
| } catch (RemoteException e) {Log.e(TAG, e.toString());} |
| } else { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) log(Log.getStackTraceString(new Throwable())); |
| } |
| return BluetoothSap.STATE_ERROR; |
| } |
| |
| /** |
| * Get the currently connected remote Bluetooth device (PCE). |
| * @return The remote Bluetooth device, or null if not in connected or |
| * connecting state, or if this proxy object is not connected to |
| * the Sap service. |
| * @hide |
| */ |
| public BluetoothDevice getClient() { |
| if (VDBG) log("getClient()"); |
| if (mService != null) { |
| try { |
| return mService.getClient(); |
| } catch (RemoteException e) {Log.e(TAG, e.toString());} |
| } else { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) log(Log.getStackTraceString(new Throwable())); |
| } |
| return null; |
| } |
| |
| /** |
| * Returns true if the specified Bluetooth device is connected. |
| * Returns false if not connected, or if this proxy object is not |
| * currently connected to the Sap service. |
| * @hide |
| */ |
| public boolean isConnected(BluetoothDevice device) { |
| if (VDBG) log("isConnected(" + device + ")"); |
| if (mService != null) { |
| try { |
| return mService.isConnected(device); |
| } catch (RemoteException e) {Log.e(TAG, e.toString());} |
| } else { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) log(Log.getStackTraceString(new Throwable())); |
| } |
| return false; |
| } |
| |
| /** |
| * Initiate connection. Initiation of outgoing connections is not |
| * supported for SAP server. |
| * @hide |
| */ |
| public boolean connect(BluetoothDevice device) { |
| if (DBG) log("connect(" + device + ")" + "not supported for SAPS"); |
| return false; |
| } |
| |
| /** |
| * Initiate disconnect. |
| * |
| * @param device Remote Bluetooth Device |
| * @return false on error, |
| * true otherwise |
| * @hide |
| */ |
| public boolean disconnect(BluetoothDevice device) { |
| if (DBG) log("disconnect(" + device + ")"); |
| if (mService != null && isEnabled() && |
| isValidDevice(device)) { |
| try { |
| return mService.disconnect(device); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| return false; |
| } |
| } |
| if (mService == null) Log.w(TAG, "Proxy not attached to service"); |
| return false; |
| } |
| |
| /** |
| * Get the list of connected devices. Currently at most one. |
| * |
| * @return list of connected devices |
| * @hide |
| */ |
| public List<BluetoothDevice> getConnectedDevices() { |
| if (DBG) log("getConnectedDevices()"); |
| if (mService != null && isEnabled()) { |
| try { |
| return mService.getConnectedDevices(); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| return new ArrayList<BluetoothDevice>(); |
| } |
| } |
| if (mService == null) Log.w(TAG, "Proxy not attached to service"); |
| return new ArrayList<BluetoothDevice>(); |
| } |
| |
| /** |
| * Get the list of devices matching specified states. Currently at most one. |
| * |
| * @return list of matching devices |
| * @hide |
| */ |
| public List<BluetoothDevice> getDevicesMatchingConnectionStates(int[] states) { |
| if (DBG) log("getDevicesMatchingStates()"); |
| if (mService != null && isEnabled()) { |
| try { |
| return mService.getDevicesMatchingConnectionStates(states); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| return new ArrayList<BluetoothDevice>(); |
| } |
| } |
| if (mService == null) Log.w(TAG, "Proxy not attached to service"); |
| return new ArrayList<BluetoothDevice>(); |
| } |
| |
| /** |
| * Get connection state of device |
| * |
| * @return device connection state |
| * @hide |
| */ |
| public int getConnectionState(BluetoothDevice device) { |
| if (DBG) log("getConnectionState(" + device + ")"); |
| if (mService != null && isEnabled() && |
| isValidDevice(device)) { |
| try { |
| return mService.getConnectionState(device); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| return BluetoothProfile.STATE_DISCONNECTED; |
| } |
| } |
| if (mService == null) Log.w(TAG, "Proxy not attached to service"); |
| return BluetoothProfile.STATE_DISCONNECTED; |
| } |
| |
| /** |
| * Set priority of the profile |
| * |
| * <p> The device should already be paired. |
| * |
| * @param device Paired bluetooth device |
| * @param priority |
| * @return true if priority is set, false on error |
| * @hide |
| */ |
| public boolean setPriority(BluetoothDevice device, int priority) { |
| if (DBG) log("setPriority(" + device + ", " + priority + ")"); |
| if (mService != null && isEnabled() && |
| isValidDevice(device)) { |
| if (priority != BluetoothProfile.PRIORITY_OFF && |
| priority != BluetoothProfile.PRIORITY_ON) { |
| return false; |
| } |
| try { |
| return mService.setPriority(device, priority); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| return false; |
| } |
| } |
| if (mService == null) Log.w(TAG, "Proxy not attached to service"); |
| return false; |
| } |
| |
| /** |
| * Get the priority of the profile. |
| * |
| * @param device Bluetooth device |
| * @return priority of the device |
| * @hide |
| */ |
| public int getPriority(BluetoothDevice device) { |
| if (VDBG) log("getPriority(" + device + ")"); |
| if (mService != null && isEnabled() && |
| isValidDevice(device)) { |
| try { |
| return mService.getPriority(device); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| return PRIORITY_OFF; |
| } |
| } |
| if (mService == null) Log.w(TAG, "Proxy not attached to service"); |
| return PRIORITY_OFF; |
| } |
| |
| private ServiceConnection mConnection = new ServiceConnection() { |
| public void onServiceConnected(ComponentName className, IBinder service) { |
| if (DBG) log("Proxy object connected"); |
| mService = IBluetoothSap.Stub.asInterface(service); |
| if (mServiceListener != null) { |
| mServiceListener.onServiceConnected(BluetoothProfile.SAP, BluetoothSap.this); |
| } |
| } |
| public void onServiceDisconnected(ComponentName className) { |
| if (DBG) log("Proxy object disconnected"); |
| mService = null; |
| if (mServiceListener != null) { |
| mServiceListener.onServiceDisconnected(BluetoothProfile.SAP); |
| } |
| } |
| }; |
| |
| private static void log(String msg) { |
| Log.d(TAG, msg); |
| } |
| |
| private boolean isEnabled() { |
| BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); |
| |
| if (adapter != null && adapter.getState() == BluetoothAdapter.STATE_ON) |
| return true; |
| log("Bluetooth is Not enabled"); |
| return false; |
| } |
| |
| private boolean isValidDevice(BluetoothDevice device) { |
| if (device == null) |
| return false; |
| |
| if (BluetoothAdapter.checkBluetoothAddress(device.getAddress())) |
| return true; |
| return false; |
| } |
| |
| } |
