diff options
Diffstat (limited to 'framework/java/android/bluetooth/BluetoothSap.java')
| -rw-r--r-- | framework/java/android/bluetooth/BluetoothSap.java | 389 |
1 files changed, 389 insertions, 0 deletions
diff --git a/framework/java/android/bluetooth/BluetoothSap.java b/framework/java/android/bluetooth/BluetoothSap.java new file mode 100644 index 0000000000..60528849a0 --- /dev/null +++ b/framework/java/android/bluetooth/BluetoothSap.java @@ -0,0 +1,389 @@ +/* + * 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; + + +public final class BluetoothSap implements BluetoothProfile { + + private static final String TAG = "BluetoothSap"; + private static final boolean DBG = true; + private static final boolean VDBG = false; + + 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 */ + public static final int STATE_ERROR = -1; + + public static final int RESULT_FAILURE = 0; + public static final int RESULT_SUCCESS = 1; + /** Connection canceled before completion. */ + 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. + */ + 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. + */ + 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. + */ + 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. + */ + 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. + */ + 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 + */ + 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 + */ + 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 + */ + 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 + */ + 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. + * Priority can be one of {@link #PRIORITY_ON} or + * {@link #PRIORITY_OFF}, + * + * @param device Paired bluetooth device + * @param priority + * @return true if priority is set, false on error + */ + 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. + * + * <p> The priority can be any of: + * {@link #PRIORITY_AUTO_CONNECT}, {@link #PRIORITY_OFF}, + * {@link #PRIORITY_ON}, {@link #PRIORITY_UNDEFINED} + * + * @param device Bluetooth device + * @return priority of the device + */ + 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; + } + +} |