android/android_api/base/src/main/java/org/iotivity/ca/CaLeClientInterface.java

   1 /******************************************************************
   2  *
   3  * Copyright 2014 Samsung Electronics All Rights Reserved.
   4  *
   5  *
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  *
  19  ******************************************************************/
  20
  21 package org.iotivity.ca;
  22
  23 import java.nio.ByteBuffer;
  24 import java.nio.ByteOrder;
  25 import java.util.ArrayList;
  26 import java.util.List;
  27 import java.util.UUID;
  28
  29 import android.bluetooth.BluetoothAdapter;
  30 import android.bluetooth.BluetoothDevice;
  31 import android.bluetooth.BluetoothGatt;
  32 import android.bluetooth.BluetoothGattCallback;
  33 import android.bluetooth.BluetoothGattCharacteristic;
  34 import android.bluetooth.BluetoothGattDescriptor;
  35 import android.content.BroadcastReceiver;
  36 import android.content.Context;
  37 import android.content.Intent;
  38 import android.content.IntentFilter;
  39 import android.util.Log;
  40
  41 public class CaLeClientInterface {
  42
  43     private static String SERVICE_UUID = "ADE3D529-C784-4F63-A987-EB69F70EE816";
  44     private static String TAG          = "Sample_Service : CaLeClientInterface";
  45     private static Context mContext;
  46
  47     private CaLeClientInterface(Context context) {
  48         caLeRegisterLeScanCallback(mLeScanCallback);
  49         caLeRegisterGattCallback(mGattCallback);
  50         mContext = context;
  51         registerIntentFilter();
  52     }
  53
  54     public static void getLeScanCallback() {
  55         caLeRegisterLeScanCallback(mLeScanCallback);
  56     }
  57
  58     public static void getLeGattCallback() {
  59         caLeRegisterGattCallback(mGattCallback);
  60     }
  61
  62     private static IntentFilter registerIntentFilter() {
  63         IntentFilter filter = new IntentFilter();
  64         filter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);
  65         filter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED);
  66         mContext.registerReceiver(mReceiver, filter);
  67         return filter;
  68     }
  69
  70     public static void destroyLeInterface() {
  71         mContext.unregisterReceiver(mReceiver);
  72     }
  73
  74     private native static void caLeRegisterLeScanCallback(BluetoothAdapter.LeScanCallback callback);
  75
  76     private native static void caLeRegisterGattCallback(BluetoothGattCallback callback);
  77
  78     // BluetoothAdapter.LeScanCallback
  79     private native static void caLeScanCallback(BluetoothDevice device);
  80
  81     // BluetoothGattCallback
  82     private native static void caLeGattConnectionStateChangeCallback(
  83             BluetoothGatt gatt, int status, int newState);
  84
  85     // BluetoothGattCallback for Connection Manager
  86     private native static void caManagerLeGattConnectionStateChangeCB(
  87             BluetoothGatt gatt, int status, int newState);
  88
  89     private native static void caLeGattNWConnectionStateChangeCallback(
  90             BluetoothGatt gatt, int status, int newState);
  91
  92     private native static void caLeGattServicesDiscoveredCallback(BluetoothGatt gatt, int status);
  93
  94     private native static void caLeGattNWServicesDiscoveredCallback(BluetoothGatt gatt,
  95                                                                     int status);
  96
  97     private native static void caLeGattNWDescriptorWriteCallback(BluetoothGatt gatt, int status);
  98
  99     private native static void caLeGattCharacteristicWriteCallback(
 100             BluetoothGatt gatt, byte[] data, int status);
 101
 102     private native static void caLeGattCharacteristicChangedCallback(
 103             BluetoothGatt gatt, byte[] data);
 104
 105     private native static void caLeGattDescriptorWriteCallback(BluetoothGatt gatt, int status);
 106
 107     private native static void caLeGattReliableWriteCompletedCallback(BluetoothGatt gatt,
 108                                                                      int status);
 109
 110     private native static void caLeGattReadRemoteRssiCallback(BluetoothGatt gatt, int rssi,
 111                                                              int status);
 112
 113     // Network Monitor
 114     private native static void caLeStateChangedCallback(int state);
 115
 116     // bond state
 117     private native static void caLeBondStateChangedCallback(String address);
 118
 119     // adapter state
 120     private native static void caManagerAdapterStateChangedCallback(int state);
 121
 122     // bond state
 123     private native static void caManagerBondStateChangedCallback(BluetoothDevice address);
 124
 125     private native static void caManagerLeServicesDiscoveredCallback(BluetoothGatt gatt,
 126                                                                      int status);
 127
 128     private native static void caManagerLeRemoteRssiCallback(BluetoothGatt gatt, int rssi,
 129                                                              int status);
 130
 131     // Callback
 132     private static BluetoothAdapter.LeScanCallback mLeScanCallback =
 133                    new BluetoothAdapter.LeScanCallback() {
 134
 135         @Override
 136         public void onLeScan(BluetoothDevice device, int rssi, byte[] scanRecord) {
 137
 138             try {
 139                 List<UUID> uuids = getUuids(scanRecord);
 140                 for (UUID uuid : uuids) {
 141                     Log.d(TAG, "UUID : " + uuid.toString());
 142                     if(uuid.toString().contains(SERVICE_UUID.toLowerCase())) {
 143                         Log.d(TAG, "we found that has the Device");
 144                         Log.d(TAG, "scanned device address : " + device.getAddress());
 145                         caLeScanCallback(device);
 146                     }
 147                 }
 148             } catch(UnsatisfiedLinkError e) {
 149
 150             }
 151         }
 152     };
 153
 154     private static List<UUID> getUuids(final byte[] scanRecord) {
 155         List<UUID> uuids = new ArrayList<UUID>();
 156
 157         int offset = 0;
 158         while (offset < (scanRecord.length - 2)) {
 159             int len = scanRecord[offset++];
 160             if (len == 0)
 161                 break;
 162
 163             int type = scanRecord[offset++];
 164
 165             switch (type) {
 166             case 0x02:
 167             case 0x03:
 168                 while (len > 1) {
 169                     int uuid16 = scanRecord[offset++];
 170                     uuid16 += (scanRecord[offset++] << 8);
 171                     len -= 2;
 172                     uuids.add(UUID.fromString(String.format(
 173                             "%08x-0000-1000-8000-00805f9b34fb", uuid16)));
 174                 }
 175                 break;
 176             case 0x06:
 177             case 0x07:
 178                 while (len >= 16) {
 179                     try {
 180                         ByteBuffer buffer = ByteBuffer.wrap(scanRecord, offset++, 16).
 181                                                             order(ByteOrder.LITTLE_ENDIAN);
 182                         long mostSigBits = buffer.getLong();
 183                         long leastSigBits = buffer.getLong();
 184                         uuids.add(new UUID(leastSigBits, mostSigBits));
 185                     } catch (IndexOutOfBoundsException e) {
 186                         Log.e(TAG, e.toString());
 187                         continue;
 188                     } finally {
 189                         offset += 15;
 190                         len -= 16;
 191                     }
 192                 }
 193                 break;
 194             default:
 195                 offset += (len - 1);
 196                 break;
 197             }
 198         }
 199         return uuids;
 200     }
 201
 202     private static final BluetoothGattCallback mGattCallback = new BluetoothGattCallback() {
 203
 204         @Override
 205         public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
 206             super.onConnectionStateChange(gatt, status, newState);
 207
 208             caLeGattConnectionStateChangeCallback(gatt, status, newState);
 209             caManagerLeGattConnectionStateChangeCB(gatt, status, newState);
 210             caLeGattNWConnectionStateChangeCallback(gatt, status, newState);
 211         }
 212
 213         @Override
 214         public void onServicesDiscovered(BluetoothGatt gatt, int status) {
 215             super.onServicesDiscovered(gatt, status);
 216
 217             caLeGattServicesDiscoveredCallback(gatt, status);
 218             caManagerLeServicesDiscoveredCallback(gatt, status);
 219             caLeGattNWServicesDiscoveredCallback(gatt, status);
 220         }
 221
 222         @Override
 223         public void onCharacteristicRead(BluetoothGatt gatt,
 224                 BluetoothGattCharacteristic characteristic, int status) {
 225             super.onCharacteristicRead(gatt, characteristic, status);
 226         }
 227
 228         @Override
 229         public void onCharacteristicWrite(BluetoothGatt gatt,
 230                 BluetoothGattCharacteristic characteristic, int status) {
 231             super.onCharacteristicWrite(gatt, characteristic, status);
 232
 233             caLeGattCharacteristicWriteCallback(gatt, characteristic.getValue(), status);
 234         }
 235
 236         @Override
 237         public void onCharacteristicChanged(BluetoothGatt gatt,
 238                 BluetoothGattCharacteristic characteristic) {
 239             super.onCharacteristicChanged(gatt, characteristic);
 240
 241             caLeGattCharacteristicChangedCallback(gatt, characteristic.getValue());
 242         }
 243
 244         @Override
 245         public void onDescriptorRead(BluetoothGatt gatt, BluetoothGattDescriptor descriptor,
 246                 int status) {
 247             super.onDescriptorRead(gatt, descriptor, status);
 248         }
 249
 250         @Override
 251         public void onDescriptorWrite(BluetoothGatt gatt, BluetoothGattDescriptor descriptor,
 252                 int status) {
 253             super.onDescriptorWrite(gatt, descriptor, status);
 254
 255             caLeGattDescriptorWriteCallback(gatt, status);
 256             caLeGattNWDescriptorWriteCallback(gatt, status);
 257         }
 258
 259         @Override
 260         public void onReliableWriteCompleted(BluetoothGatt gatt, int status) {
 261             super.onReliableWriteCompleted(gatt, status);
 262         }
 263
 264         @Override
 265         public void onReadRemoteRssi(BluetoothGatt gatt, int rssi, int status) {
 266             super.onReadRemoteRssi(gatt, rssi, status);
 267             caManagerLeRemoteRssiCallback(gatt, rssi, status);
 268         }
 269     };
 270
 271     private static final BroadcastReceiver mReceiver = new BroadcastReceiver() {
 272
 273         @Override
 274         public void onReceive(Context context, Intent intent) {
 275
 276             String action = intent.getAction();
 277
 278             if (action != null && action.equals(BluetoothAdapter.ACTION_STATE_CHANGED)) {
 279
 280                 int state = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE,
 281                                                BluetoothAdapter.ERROR);
 282
 283                 if (state == BluetoothAdapter.STATE_ON || state == BluetoothAdapter.STATE_OFF
 284                         || state == BluetoothAdapter.STATE_TURNING_OFF)
 285                 {
 286                     caLeStateChangedCallback(state);
 287                     caManagerAdapterStateChangedCallback(state);
 288                 }
 289             }
 290
 291             if (action != null && action.equals(BluetoothDevice.ACTION_BOND_STATE_CHANGED)) {
 292
 293                 int bondState = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE,
 294                                                    BluetoothDevice.ERROR);
 295
 296                 if (bondState == BluetoothDevice.BOND_NONE) {
 297                     if ((intent.getIntExtra(BluetoothDevice.EXTRA_PREVIOUS_BOND_STATE,
 298                             BluetoothDevice.ERROR) == BluetoothDevice.BOND_BONDED)) {
 299                             BluetoothDevice device = intent
 300                                 .getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
 301
 302                         caManagerBondStateChangedCallback(device);
 303                         caLeBondStateChangedCallback(device.getAddress());
 304                     }
 305                 }
 306             }
 307         }
 308     };
 309 }
 310
 311