resource/csdk/connectivity/samples/android/casample/cAInterface/src/main/java/org/iotivity/ca/CaLeClientInterface.java

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