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