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