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          = "OIC_LE_CB_INTERFACE";
  45     private static Context mContext;
  46
  47     private CaLeClientInterface(Context context) {
  48         caLeRegisterLeScanCallback(mLeScanCallback);
  49         caLeRegisterGattCallback(mGattCallback);
  50         synchronized(CaLeClientInterface.class) {
  51             mContext = context;
  52         }
  53         registerIntentFilter();
  54     }
  55
  56
  57
  58     public static void getLeScanCallback() {
  59         caLeRegisterLeScanCallback(mLeScanCallback);
  60     }
  61
  62     public static void getLeGattCallback() {
  63         caLeRegisterGattCallback(mGattCallback);
  64     }
  65
  66     private static IntentFilter registerIntentFilter() {
  67         IntentFilter filter = new IntentFilter();
  68         filter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);
  69         filter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED);
  70         mContext.registerReceiver(mReceiver, filter);
  71         return filter;
  72     }
  73
  74     public static void destroyLeInterface() {
  75         mContext.unregisterReceiver(mReceiver);
  76     }
  77
  78     private native static void caLeRegisterLeScanCallback(BluetoothAdapter.LeScanCallback callback);
  79
  80     private native static void caLeRegisterGattCallback(BluetoothGattCallback callback);
  81
  82     // BluetoothAdapter.LeScanCallback
  83     private native static void caLeScanCallback(BluetoothDevice device);
  84
  85     // BluetoothGattCallback
  86     private native static void caLeGattConnectionStateChangeCallback(
  87             BluetoothGatt gatt, int status, int newState);
  88
  89     // BluetoothGattCallback for Connection Manager
  90     private native static void caManagerLeGattConnectionStateChangeCB(
  91             BluetoothGatt gatt, int status, int newState);
  92
  93     private native static void caLeGattNWConnectionStateChangeCallback(
  94             BluetoothGatt gatt, int status, int newState);
  95
  96     private native static void caLeGattServicesDiscoveredCallback(BluetoothGatt gatt, int status);
  97
  98     private native static void caLeGattNWServicesDiscoveredCallback(BluetoothGatt gatt,
  99                                                                     int status);
 100
 101     private native static void caLeGattNWDescriptorWriteCallback(BluetoothGatt gatt, int status);
 102
 103     private native static void caLeGattCharacteristicWriteCallback(
 104             BluetoothGatt gatt, byte[] data, int status);
 105
 106     private native static void caLeGattCharacteristicChangedCallback(
 107             BluetoothGatt gatt, byte[] data);
 108
 109     private native static void caLeGattDescriptorWriteCallback(BluetoothGatt gatt, int status);
 110
 111     private native static void caLeGattReliableWriteCompletedCallback(BluetoothGatt gatt,
 112                                                                      int status);
 113
 114     private native static void caLeGattReadRemoteRssiCallback(BluetoothGatt gatt, int rssi,
 115                                                              int status);
 116
 117     // Network Monitor
 118     private native static void caLeStateChangedCallback(int state);
 119
 120     // bond state
 121     private native static void caLeBondStateChangedCallback(String address);
 122
 123     // adapter state
 124     private native static void caManagerAdapterStateChangedCallback(int state);
 125
 126     // bond state
 127     private native static void caManagerBondStateChangedCallback(BluetoothDevice address);
 128
 129     private native static void caManagerLeServicesDiscoveredCallback(BluetoothGatt gatt,
 130                                                                      int status);
 131
 132     private native static void caManagerLeRemoteRssiCallback(BluetoothGatt gatt, int rssi,
 133                                                              int status);
 134
 135     // Callback
 136     private static BluetoothAdapter.LeScanCallback mLeScanCallback =
 137                    new BluetoothAdapter.LeScanCallback() {
 138
 139         @Override
 140         public void onLeScan(BluetoothDevice device, int rssi, byte[] scanRecord) {
 141
 142             try {
 143                 List<UUID> uuids = getUuids(scanRecord);
 144                 for (UUID uuid : uuids) {
 145                     Log.d(TAG, "UUID : " + uuid.toString());
 146                     if(uuid.toString().contains(SERVICE_UUID.toLowerCase())) {
 147                         Log.d(TAG, "we found that has the Device");
 148                         Log.d(TAG, "scanned device address : " + device.getAddress());
 149                         caLeScanCallback(device);
 150                     }
 151                 }
 152             } catch(UnsatisfiedLinkError e) {
 153
 154             }
 155         }
 156     };
 157
 158     private static List<UUID> getUuids(final byte[] scanRecord) {
 159         List<UUID> uuids = new ArrayList<UUID>();
 160
 161         int offset = 0;
 162         while (offset < (scanRecord.length - 2)) {
 163             int len = scanRecord[offset++];
 164             if (len == 0)
 165                 break;
 166
 167             int type = scanRecord[offset++];
 168
 169             switch (type) {
 170             case 0x02:
 171             case 0x03:
 172                 while (len > 1) {
 173                     int uuid16 = scanRecord[offset++];
 174                     uuid16 += (scanRecord[offset++] << 8);
 175                     len -= 2;
 176                     uuids.add(UUID.fromString(String.format(
 177                             "%08x-0000-1000-8000-00805f9b34fb", uuid16)));
 178                 }
 179                 break;
 180             case 0x06:
 181             case 0x07:
 182                 while (len >= 16) {
 183                     try {
 184                         ByteBuffer buffer = ByteBuffer.wrap(scanRecord, offset++, 16).
 185                                                             order(ByteOrder.LITTLE_ENDIAN);
 186                         long mostSigBits = buffer.getLong();
 187                         long leastSigBits = buffer.getLong();
 188                         uuids.add(new UUID(leastSigBits, mostSigBits));
 189                     } catch (IndexOutOfBoundsException e) {
 190                         Log.e(TAG, e.toString());
 191                         continue;
 192                     } finally {
 193                         offset += 15;
 194                         len -= 16;
 195                     }
 196                 }
 197                 break;
 198             default:
 199                 offset += (len - 1);
 200                 break;
 201             }
 202         }
 203         return uuids;
 204     }
 205
 206     private static final BluetoothGattCallback mGattCallback = new BluetoothGattCallback() {
 207
 208         @Override
 209         public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
 210             super.onConnectionStateChange(gatt, status, newState);
 211
 212             caLeGattConnectionStateChangeCallback(gatt, status, newState);
 213             caManagerLeGattConnectionStateChangeCB(gatt, status, newState);
 214             caLeGattNWConnectionStateChangeCallback(gatt, status, newState);
 215         }
 216
 217         @Override
 218         public void onServicesDiscovered(BluetoothGatt gatt, int status) {
 219             super.onServicesDiscovered(gatt, status);
 220
 221             caLeGattServicesDiscoveredCallback(gatt, status);
 222             caManagerLeServicesDiscoveredCallback(gatt, status);
 223             caLeGattNWServicesDiscoveredCallback(gatt, status);
 224         }
 225
 226         @Override
 227         public void onCharacteristicRead(BluetoothGatt gatt,
 228                 BluetoothGattCharacteristic characteristic, int status) {
 229             super.onCharacteristicRead(gatt, characteristic, status);
 230         }
 231
 232         @Override
 233         public void onCharacteristicWrite(BluetoothGatt gatt,
 234                 BluetoothGattCharacteristic characteristic, int status) {
 235             super.onCharacteristicWrite(gatt, characteristic, status);
 236
 237             caLeGattCharacteristicWriteCallback(gatt, characteristic.getValue(), status);
 238         }
 239
 240         @Override
 241         public void onCharacteristicChanged(BluetoothGatt gatt,
 242                 BluetoothGattCharacteristic characteristic) {
 243             super.onCharacteristicChanged(gatt, characteristic);
 244
 245             caLeGattCharacteristicChangedCallback(gatt, characteristic.getValue());
 246         }
 247
 248         @Override
 249         public void onDescriptorRead(BluetoothGatt gatt, BluetoothGattDescriptor descriptor,
 250                 int status) {
 251             super.onDescriptorRead(gatt, descriptor, status);
 252         }
 253
 254         @Override
 255         public void onDescriptorWrite(BluetoothGatt gatt, BluetoothGattDescriptor descriptor,
 256                 int status) {
 257             super.onDescriptorWrite(gatt, descriptor, status);
 258
 259             caLeGattDescriptorWriteCallback(gatt, status);
 260             caLeGattNWDescriptorWriteCallback(gatt, status);
 261         }
 262
 263         @Override
 264         public void onReliableWriteCompleted(BluetoothGatt gatt, int status) {
 265             super.onReliableWriteCompleted(gatt, status);
 266         }
 267
 268         @Override
 269         public void onReadRemoteRssi(BluetoothGatt gatt, int rssi, int status) {
 270             super.onReadRemoteRssi(gatt, rssi, status);
 271             caManagerLeRemoteRssiCallback(gatt, rssi, status);
 272         }
 273     };
 274
 275     private static final BroadcastReceiver mReceiver = new BroadcastReceiver() {
 276
 277         @Override
 278         public void onReceive(Context context, Intent intent) {
 279
 280             String action = intent.getAction();
 281
 282             if (action != null && action.equals(BluetoothAdapter.ACTION_STATE_CHANGED)) {
 283
 284                 int state = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE,
 285                                                BluetoothAdapter.ERROR);
 286
 287                 if (state == BluetoothAdapter.STATE_ON || state == BluetoothAdapter.STATE_OFF
 288                         || state == BluetoothAdapter.STATE_TURNING_OFF)
 289                 {
 290                     caLeStateChangedCallback(state);
 291                     caManagerAdapterStateChangedCallback(state);
 292                 }
 293             }
 294
 295             if (action != null && action.equals(BluetoothDevice.ACTION_BOND_STATE_CHANGED)) {
 296
 297                 int bondState = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE,
 298                                                    BluetoothDevice.ERROR);
 299
 300                 if (bondState == BluetoothDevice.BOND_NONE) {
 301                     if ((intent.getIntExtra(BluetoothDevice.EXTRA_PREVIOUS_BOND_STATE,
 302                             BluetoothDevice.ERROR) == BluetoothDevice.BOND_BONDED)) {
 303                             BluetoothDevice device = intent
 304                                 .getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
 305
 306                         caManagerBondStateChangedCallback(device);
 307                         caLeBondStateChangedCallback(device.getAddress());
 308                     }
 309                 }
 310             }
 311         }
 312     };
 313 }
 314
 315