Add BluetoothProfile for PBAP PCE role.

Create a new Bluetooth profile for Pbap Client.

Bug: 27490041
Change-Id: I77d2c7eeeb8e955ea61386d784b02b14f415b318

5 files changed, 378 insertions, 1 deletions

diff --git a/Android.mk b/Android.mk
index 3ac5889f61c3..dfa9f58d2d18 100644
--- a/Android.mk
+++ b/Android.mk
@@ -117,6 +117,7 @@ LOCAL_SRC_FILES += \
 	core/java/android/bluetooth/IBluetoothManager.aidl \
 	core/java/android/bluetooth/IBluetoothManagerCallback.aidl \
 	core/java/android/bluetooth/IBluetoothPbap.aidl \
+	core/java/android/bluetooth/IBluetoothPbapClient.aidl \
 	core/java/android/bluetooth/IBluetoothMap.aidl \
 	core/java/android/bluetooth/IBluetoothSap.aidl \
 	core/java/android/bluetooth/IBluetoothStateChangeCallback.aidl \
diff --git a/core/java/android/bluetooth/BluetoothAdapter.java b/core/java/android/bluetooth/BluetoothAdapter.java
index eb4cb919ce1b..d762a1727272 100644
--- a/core/java/android/bluetooth/BluetoothAdapter.java
+++ b/core/java/android/bluetooth/BluetoothAdapter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009-2015 The Android Open Source Project
+ * Copyright (C) 2009-2016 The Android Open Source Project
  * Copyright (C) 2015 Samsung LSI
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -1837,6 +1837,9 @@ public final class BluetoothAdapter {
         } else if (profile == BluetoothProfile.SAP) {
             BluetoothSap sap = new BluetoothSap(context, listener);
             return true;
+        } else if (profile == BluetoothProfile.PBAP_CLIENT) {
+            BluetoothPbapClient pbapClient = new BluetoothPbapClient(context, listener);
+            return true;
         } else {
             return false;
         }
@@ -1905,6 +1908,10 @@ public final class BluetoothAdapter {
                 BluetoothSap sap = (BluetoothSap)proxy;
                 sap.close();
                 break;
+            case BluetoothProfile.PBAP_CLIENT:
+                BluetoothPbapClient pbapClient = (BluetoothPbapClient)proxy;
+                pbapClient.close();
+                break;
         }
     }
 
diff --git a/core/java/android/bluetooth/BluetoothPbapClient.java b/core/java/android/bluetooth/BluetoothPbapClient.java
new file mode 100644
index 000000000000..736e55d17d8a
--- /dev/null
+++ b/core/java/android/bluetooth/BluetoothPbapClient.java
@@ -0,0 +1,331 @@
+/*
+ * 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 java.util.List;
+import java.util.ArrayList;
+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.util.Log;
+
+/**
+ * This class provides the APIs to control the Bluetooth PBAP Client Profile.
+ *@hide
+ */
+public final class BluetoothPbapClient implements BluetoothProfile {
+
+    private static final String TAG = "BluetoothPbapClient";
+    private static final boolean DBG = false;
+    private static final boolean VDBG = false;
+
+    public static final String ACTION_CONNECTION_STATE_CHANGED =
+        "android.bluetooth.pbap.profile.action.CONNECTION_STATE_CHANGED";
+
+    private IBluetoothPbapClient mService;
+    private BluetoothDevice mDevice;
+    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: PBAP CLIENT 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 BluetoothPbapClient proxy object.
+     */
+    BluetoothPbapClient(Context context, ServiceListener l) {
+        if (DBG) {
+            Log.d(TAG, "Create BluetoothPbapClient 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();
+    }
+
+    private boolean doBind() {
+        Intent intent = new Intent(IBluetoothPbapClient.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 PBAP Client 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 BluetoothPbapClient 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;
+    }
+
+    /**
+     * 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;
+     */
+    public boolean connect(BluetoothDevice device) {
+        if (DBG) {
+            log("connect(" + device + ") for PBAP Client.");
+        }
+        if (mService != null && isEnabled() && isValidDevice(device)) {
+            try {
+                mDevice = device;
+                return mService.connect(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;
+    }
+
+    /**
+     * Initiate disconnect.
+     *
+     * @param device Remote Bluetooth Device
+     * @return false on error,
+     *               true otherwise
+     */
+    public boolean disconnect() {
+        if (DBG) {
+            log("disconnect(" + mDevice + ")");
+        }
+        if (mService != null && isEnabled() && isValidDevice(mDevice)) {
+            try {
+                mService.disconnect(mDevice);
+                return true;
+            } 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
+     */
+    @Override
+    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
+     */
+    @Override
+    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
+     */
+    @Override
+    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;
+    }
+
+    private final ServiceConnection mConnection = new ServiceConnection() {
+        public void onServiceConnected(ComponentName className, IBinder service) {
+            if (DBG) {
+                log("Proxy object connected");
+            }
+            mService = IBluetoothPbapClient.Stub.asInterface(service);
+            if (mServiceListener != null) {
+                mServiceListener.onServiceConnected(BluetoothProfile.PBAP_CLIENT, BluetoothPbapClient.this);
+            }
+        }
+        public void onServiceDisconnected(ComponentName className) {
+            if (DBG) {
+                log("Proxy object disconnected");
+            }
+            mService = null;
+            if (mServiceListener != null) {
+                mServiceListener.onServiceDisconnected(BluetoothProfile.PBAP_CLIENT);
+            }
+        }
+    };
+
+    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;
+    }
+}
diff --git a/core/java/android/bluetooth/BluetoothProfile.java b/core/java/android/bluetooth/BluetoothProfile.java
index cbce22cdea60..eee66d193fe4 100644
--- a/core/java/android/bluetooth/BluetoothProfile.java
+++ b/core/java/android/bluetooth/BluetoothProfile.java
@@ -131,6 +131,12 @@ public interface BluetoothProfile {
     public static final int HEADSET_CLIENT = 16;
 
     /**
+     * PBAP Client
+     * @hide
+     */
+    public static final int PBAP_CLIENT = 17;
+
+    /**
      * Default priority for devices that we try to auto-connect to and
      * and allow incoming connections for the profile
      * @hide
diff --git a/core/java/android/bluetooth/IBluetoothPbapClient.aidl b/core/java/android/bluetooth/IBluetoothPbapClient.aidl
new file mode 100644
index 000000000000..b26ea2957142
--- /dev/null
+++ b/core/java/android/bluetooth/IBluetoothPbapClient.aidl
@@ -0,0 +1,32 @@
+/*
+ * 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.bluetooth.BluetoothDevice;
+
+/**
+ * API for Bluetooth Phone Book Access Provile Client Side
+ *
+ * {@hide}
+ */
+interface IBluetoothPbapClient {
+    boolean connect(in BluetoothDevice device);
+    boolean disconnect(in BluetoothDevice device);
+    List<BluetoothDevice> getConnectedDevices();
+    List<BluetoothDevice> getDevicesMatchingConnectionStates(in int[] states);
+    int getConnectionState(in BluetoothDevice device);
+}