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