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         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 caLeGattCharacteristicWriteCallback(
  95             BluetoothGatt gatt, byte[] data, int status);
  96
  97     private native static void caLeGattCharacteristicChangedCallback(
  98             BluetoothGatt gatt, byte[] data);
  99
 100     private native static void caLeGattDescriptorWriteCallback(BluetoothGatt gatt, 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     // adapter state
 115     private native static void caManagerAdapterStateChangedCallback(int state);
 116
 117     // bond state
 118     private native static void caManagerBondStateChangedCallback(BluetoothDevice address);
 119
 120     private native static void caManagerLeServicesDiscoveredCallback(BluetoothGatt gatt,
 121                                                                      int status);
 122
 123     private native static void caManagerLeRemoteRssiCallback(BluetoothGatt gatt, int rssi,
 124                                                              int status);
 125
 126     // Callback
 127     private static BluetoothAdapter.LeScanCallback mLeScanCallback =
 128                    new BluetoothAdapter.LeScanCallback() {
 129
 130         @Override
 131         public void onLeScan(BluetoothDevice device, int rssi, byte[] scanRecord) {
 132
 133             try {
 134                 List<UUID> uuids = getUuids(scanRecord);
 135                 for (UUID uuid : uuids) {
 136                     Log.d(TAG, "UUID : " + uuid.toString());
 137                     if(uuid.toString().contains(SERVICE_UUID.toLowerCase())) {
 138                         Log.d(TAG, "we found that has the Device");
 139                         Log.d(TAG, "scanned device address : " + device.getAddress());
 140                         caLeScanCallback(device);
 141                     }
 142                 }
 143             } catch(UnsatisfiedLinkError e) {
 144
 145             }
 146         }
 147     };
 148
 149     private static List<UUID> getUuids(final byte[] scanRecord) {
 150         List<UUID> uuids = new ArrayList<UUID>();
 151
 152         int offset = 0;
 153         while (offset < (scanRecord.length - 2)) {
 154             int len = scanRecord[offset++];
 155             if (len == 0)
 156                 break;
 157
 158             int type = scanRecord[offset++];
 159
 160             switch (type) {
 161             case 0x02:
 162             case 0x03:
 163                 while (len > 1) {
 164                     int uuid16 = scanRecord[offset++];
 165                     uuid16 += (scanRecord[offset++] << 8);
 166                     len -= 2;
 167                     uuids.add(UUID.fromString(String.format(
 168                             "%08x-0000-1000-8000-00805f9b34fb", uuid16)));
 169                 }
 170                 break;
 171             case 0x06:
 172             case 0x07:
 173                 while (len >= 16) {
 174                     try {
 175                         ByteBuffer buffer = ByteBuffer.wrap(scanRecord, offset++, 16).
 176                                                             order(ByteOrder.LITTLE_ENDIAN);
 177                         long mostSigBits = buffer.getLong();
 178                         long leastSigBits = buffer.getLong();
 179                         uuids.add(new UUID(leastSigBits, mostSigBits));
 180                     } catch (IndexOutOfBoundsException e) {
 181                         Log.e(TAG, e.toString());
 182                         continue;
 183                     } finally {
 184                         offset += 15;
 185                         len -= 16;
 186                     }
 187                 }
 188                 break;
 189             default:
 190                 offset += (len - 1);
 191                 break;
 192             }
 193         }
 194         return uuids;
 195     }
 196
 197     private static final BluetoothGattCallback mGattCallback = new BluetoothGattCallback() {
 198
 199         @Override
 200         public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
 201             super.onConnectionStateChange(gatt, status, newState);
 202
 203             caLeGattConnectionStateChangeCallback(gatt, status, newState);
 204             caManagerLeGattConnectionStateChangeCB(gatt, status, newState);
 205             caLeGattNWConnectionStateChangeCallback(gatt, status, newState);
 206         }
 207
 208         @Override
 209         public void onServicesDiscovered(BluetoothGatt gatt, int status) {
 210             super.onServicesDiscovered(gatt, status);
 211
 212             caLeGattServicesDiscoveredCallback(gatt, status);
 213             caManagerLeServicesDiscoveredCallback(gatt, status);
 214         }
 215
 216         @Override
 217         public void onCharacteristicRead(BluetoothGatt gatt,
 218                 BluetoothGattCharacteristic characteristic, int status) {
 219             super.onCharacteristicRead(gatt, characteristic, status);
 220         }
 221
 222         @Override
 223         public void onCharacteristicWrite(BluetoothGatt gatt,
 224                 BluetoothGattCharacteristic characteristic, int status) {
 225             super.onCharacteristicWrite(gatt, characteristic, status);
 226
 227             caLeGattCharacteristicWriteCallback(gatt, characteristic.getValue(), status);
 228         }
 229
 230         @Override
 231         public void onCharacteristicChanged(BluetoothGatt gatt,
 232                 BluetoothGattCharacteristic characteristic) {
 233             super.onCharacteristicChanged(gatt, characteristic);
 234
 235             caLeGattCharacteristicChangedCallback(gatt, characteristic.getValue());
 236         }
 237
 238         @Override
 239         public void onDescriptorRead(BluetoothGatt gatt, BluetoothGattDescriptor descriptor,
 240                 int status) {
 241             super.onDescriptorRead(gatt, descriptor, status);
 242         }
 243
 244         @Override
 245         public void onDescriptorWrite(BluetoothGatt gatt, BluetoothGattDescriptor descriptor,
 246                 int status) {
 247             super.onDescriptorWrite(gatt, descriptor, status);
 248
 249             caLeGattDescriptorWriteCallback(gatt, status);
 250         }
 251
 252         @Override
 253         public void onReliableWriteCompleted(BluetoothGatt gatt, int status) {
 254             super.onReliableWriteCompleted(gatt, status);
 255         }
 256
 257         @Override
 258         public void onReadRemoteRssi(BluetoothGatt gatt, int rssi, int status) {
 259             super.onReadRemoteRssi(gatt, rssi, status);
 260             caManagerLeRemoteRssiCallback(gatt, rssi, status);
 261         }
 262     };
 263
 264     private static final BroadcastReceiver mReceiver = new BroadcastReceiver() {
 265
 266         @Override
 267         public void onReceive(Context context, Intent intent) {
 268
 269             String action = intent.getAction();
 270
 271             if (action != null && action.equals(BluetoothAdapter.ACTION_STATE_CHANGED)) {
 272
 273                 int state = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE,
 274                                                BluetoothAdapter.ERROR);
 275
 276                 if (state == BluetoothAdapter.STATE_ON || state == BluetoothAdapter.STATE_OFF
 277                         || state == BluetoothAdapter.STATE_TURNING_OFF)
 278                 {
 279                     caLeStateChangedCallback(state);
 280                     caManagerAdapterStateChangedCallback(state);
 281                 }
 282             }
 283
 284             if (action != null && action.equals(BluetoothDevice.ACTION_BOND_STATE_CHANGED)) {
 285
 286                 int bondState = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE,
 287                                                    BluetoothDevice.ERROR);
 288
 289                 if (bondState == BluetoothDevice.BOND_NONE) {
 290                     if ((intent.getIntExtra(BluetoothDevice.EXTRA_PREVIOUS_BOND_STATE,
 291                             BluetoothDevice.ERROR) == BluetoothDevice.BOND_BONDED)) {
 292                             BluetoothDevice device = intent
 293                                 .getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
 294
 295                         caManagerBondStateChangedCallback(device);
 296                         caLeBondStateChangedCallback(device.getAddress());
 297                     }
 298                 }
 299             }
 300         }
 301     };
 302 }
 303
 304