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 = "713d0000-503e-4c75-ba94-3148f18d941e";
  44
  45     private CaLeClientInterface(Context context) {
  46
  47         caLeRegisterLeScanCallback(mLeScanCallback);
  48         caLeRegisterGattCallback(mGattCallback);
  49
  50         registerIntentFilter(context);
  51     }
  52
  53     public static void getLeScanCallback() {
  54         caLeRegisterLeScanCallback(mLeScanCallback);
  55     }
  56
  57     public static void getLeGattCallback() {
  58         caLeRegisterGattCallback(mGattCallback);
  59     }
  60
  61     private static IntentFilter registerIntentFilter(Context context) {
  62         IntentFilter filter = new IntentFilter();
  63         filter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);
  64         filter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED);
  65         context.registerReceiver(mReceiver, filter);
  66         return filter;
  67     }
  68
  69     private native static void caLeRegisterLeScanCallback(BluetoothAdapter.LeScanCallback callback);
  70
  71     private native static void caLeRegisterGattCallback(BluetoothGattCallback callback);
  72
  73     // BluetoothAdapter.LeScanCallback
  74     private native static void caLeScanCallback(BluetoothDevice device,
  75                                                 int rssi, byte[] scanRecord);
  76
  77     // BluetoothGattCallback
  78     private native static void caLeGattConnectionStateChangeCallback(
  79             BluetoothGatt gatt, int status, int newState);
  80
  81     private native static void caLeGattServicesDiscoveredCallback(BluetoothGatt gatt, int status);
  82
  83     private native static void caLeGattCharacteristicReadCallback(
  84             BluetoothGatt gatt, BluetoothGattCharacteristic characteristic,
  85             byte[] data, int status);
  86
  87     private native static void caLeGattCharacteristicWriteCallback(
  88             BluetoothGatt gatt, BluetoothGattCharacteristic characteristic,
  89             byte[] data, int status);
  90
  91     private native static void caLeGattCharacteristicChangedCallback(
  92             BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, byte[] data);
  93
  94     private native static void caLeGattDescriptorReadCallback(BluetoothGatt gatt,
  95                                                              BluetoothGattDescriptor descriptor,
  96                                                              int status);
  97
  98     private native static void caLeGattDescriptorWriteCallback(BluetoothGatt gatt,
  99                                                               BluetoothGattDescriptor descriptor,
 100                                                               int status);
 101
 102     private native static void caLeGattReliableWriteCompletedCallback(BluetoothGatt gatt,
 103                                                                      int status);
 104
 105     private native static void caLeGattReadRemoteRssiCallback(BluetoothGatt gatt, int rssi,
 106                                                              int status);
 107
 108     // Network Monitor
 109     private native static void caLeStateChangedCallback(int state);
 110
 111     // bond state
 112     private native static void caLeBondStateChangedCallback(String address);
 113
 114     // Callback
 115     private static BluetoothAdapter.LeScanCallback mLeScanCallback =
 116                    new BluetoothAdapter.LeScanCallback() {
 117
 118         @Override
 119         public void onLeScan(BluetoothDevice device, int rssi, byte[] scanRecord) {
 120
 121             try {
 122                 List<UUID> uuids = getUuids(scanRecord);
 123                 for (UUID uuid : uuids) {
 124                     Log.d("CA", "UUID : " + uuid.toString());
 125                     if(uuid.toString().contains(SERVICE_UUID)) {
 126                         Log.d("CA", "we found that has the Device");
 127                         caLeScanCallback(device, rssi, scanRecord);
 128                     }
 129                 }
 130             } catch(UnsatisfiedLinkError e) {
 131
 132             }
 133         }
 134     };
 135
 136     private static List<UUID> getUuids(final byte[] scanRecord) {
 137         List<UUID> uuids = new ArrayList<UUID>();
 138
 139         int offset = 0;
 140         while (offset < (scanRecord.length - 2)) {
 141             int len = scanRecord[offset++];
 142             if (len == 0)
 143                 break;
 144
 145             int type = scanRecord[offset++];
 146
 147             switch (type) {
 148             case 0x02:
 149             case 0x03:
 150                 while (len > 1) {
 151                     int uuid16 = scanRecord[offset++];
 152                     uuid16 += (scanRecord[offset++] << 8);
 153                     len -= 2;
 154                     uuids.add(UUID.fromString(String.format(
 155                             "%08x-0000-1000-8000-00805f9b34fb", uuid16)));
 156                 }
 157                 break;
 158             case 0x06:
 159             case 0x07:
 160                 while (len >= 16) {
 161                     try {
 162                         ByteBuffer buffer = ByteBuffer.wrap(scanRecord, offset++, 16).
 163                                                             order(ByteOrder.LITTLE_ENDIAN);
 164                         long mostSigBits = buffer.getLong();
 165                         long leastSigBits = buffer.getLong();
 166                         uuids.add(new UUID(leastSigBits, mostSigBits));
 167                     } catch (IndexOutOfBoundsException e) {
 168                         Log.e("CA", e.toString());
 169                         continue;
 170                     } finally {
 171                         offset += 15;
 172                         len -= 16;
 173                     }
 174                 }
 175                 break;
 176             default:
 177                 offset += (len - 1);
 178                 break;
 179             }
 180         }
 181         return uuids;
 182     }
 183
 184     private static final BluetoothGattCallback mGattCallback = new BluetoothGattCallback() {
 185
 186         @Override
 187         public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
 188             super.onConnectionStateChange(gatt, status, newState);
 189
 190             caLeGattConnectionStateChangeCallback(gatt, status, newState);
 191         }
 192
 193         @Override
 194         public void onServicesDiscovered(BluetoothGatt gatt, int status) {
 195             super.onServicesDiscovered(gatt, status);
 196
 197             caLeGattServicesDiscoveredCallback(gatt, status);
 198         }
 199
 200         @Override
 201         public void onCharacteristicRead(BluetoothGatt gatt,
 202                 BluetoothGattCharacteristic characteristic, int status) {
 203             super.onCharacteristicRead(gatt, characteristic, status);
 204
 205             caLeGattCharacteristicReadCallback(gatt, characteristic,
 206                                                characteristic.getValue(), status);
 207         }
 208
 209         @Override
 210         public void onCharacteristicWrite(BluetoothGatt gatt,
 211                 BluetoothGattCharacteristic characteristic, int status) {
 212             super.onCharacteristicWrite(gatt, characteristic, status);
 213
 214             caLeGattCharacteristicWriteCallback(gatt, characteristic,
 215                                                 characteristic.getValue(), status);
 216         }
 217
 218         @Override
 219         public void onCharacteristicChanged(BluetoothGatt gatt,
 220                 BluetoothGattCharacteristic characteristic) {
 221             super.onCharacteristicChanged(gatt, characteristic);
 222
 223             caLeGattCharacteristicChangedCallback(gatt, characteristic,
 224                                                   characteristic.getValue());
 225         }
 226
 227         @Override
 228         public void onDescriptorRead(BluetoothGatt gatt, BluetoothGattDescriptor descriptor,
 229                 int status) {
 230             super.onDescriptorRead(gatt, descriptor, status);
 231
 232             caLeGattDescriptorReadCallback(gatt, descriptor, status);
 233         }
 234
 235         @Override
 236         public void onDescriptorWrite(BluetoothGatt gatt, BluetoothGattDescriptor descriptor,
 237                 int status) {
 238             super.onDescriptorWrite(gatt, descriptor, status);
 239
 240             caLeGattDescriptorWriteCallback(gatt, descriptor, status);
 241         }
 242
 243         @Override
 244         public void onReliableWriteCompleted(BluetoothGatt gatt, int status) {
 245             super.onReliableWriteCompleted(gatt, status);
 246
 247             caLeGattReliableWriteCompletedCallback(gatt, status);
 248         }
 249
 250         @Override
 251         public void onReadRemoteRssi(BluetoothGatt gatt, int rssi, int status) {
 252             super.onReadRemoteRssi(gatt, rssi, status);
 253
 254             caLeGattReadRemoteRssiCallback(gatt, rssi, status);
 255         }
 256     };
 257
 258     private static final BroadcastReceiver mReceiver = new BroadcastReceiver() {
 259
 260         @Override
 261         public void onReceive(Context context, Intent intent) {
 262
 263             String action = intent.getAction();
 264
 265             if (action != null && action.equals(BluetoothAdapter.ACTION_STATE_CHANGED)) {
 266
 267                 int state = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE,
 268                                                BluetoothAdapter.ERROR);
 269
 270                 if (state == BluetoothAdapter.STATE_ON || state == BluetoothAdapter.STATE_OFF)
 271                 {
 272                     caLeStateChangedCallback(state);
 273                 }
 274             }
 275
 276             if (action != null && action.equals(BluetoothDevice.ACTION_BOND_STATE_CHANGED)) {
 277
 278                 int bondState = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE,
 279                                                    BluetoothDevice.ERROR);
 280
 281                 if (bondState == BluetoothDevice.BOND_NONE) {
 282                     if ((intent.getIntExtra(BluetoothDevice.EXTRA_PREVIOUS_BOND_STATE,
 283                             BluetoothDevice.ERROR) == BluetoothDevice.BOND_BONDED)) {
 284                             BluetoothDevice device = intent
 285                                 .getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
 286
 287                         caLeBondStateChangedCallback(device.getAddress());
 288                     }
 289                 }
 290             }
 291         }
 292     };
 293 }
 294