BluetoothGattCharacteristic.java revision ddf7e4756c31d0ed90802f98abeaa79df6d16b2a
19908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta/* 29908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Copyright (C) 2013 The Android Open Source Project 39908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 49908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Licensed under the Apache License, Version 2.0 (the "License"); 59908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * you may not use this file except in compliance with the License. 69908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * You may obtain a copy of the License at 79908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 89908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * http://www.apache.org/licenses/LICENSE-2.0 99908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 109908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Unless required by applicable law or agreed to in writing, software 119908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * distributed under the License is distributed on an "AS IS" BASIS, 129908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * See the License for the specific language governing permissions and 149908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * limitations under the License. 159908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 169908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Battapackage android.bluetooth; 179908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 189908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Battaimport java.util.ArrayList; 199908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Battaimport java.util.IllegalFormatConversionException; 209908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Battaimport java.util.List; 219908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Battaimport java.util.UUID; 229908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 239908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta/** 24ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * Represents a Bluetooth GATT Characteristic 259908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 269908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Battapublic class BluetoothGattCharacteristic { 279908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 289908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 299908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic proprty: Characteristic is broadcastable. 309908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 319908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PROPERTY_BROADCAST = 0x01; 329908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 339908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 349908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic property: Characteristic is readable. 359908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 369908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PROPERTY_READ = 0x02; 379908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 389908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 399908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic property: Characteristic can be written without response. 409908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 419908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PROPERTY_WRITE_NO_RESPONSE = 0x04; 429908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 439908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 449908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic property: Characteristic can be written. 459908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 469908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PROPERTY_WRITE = 0x08; 479908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 489908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 499908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic property: Characteristic supports notification 509908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 519908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PROPERTY_NOTIFY = 0x10; 529908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 539908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 549908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic property: Characteristic supports indication 559908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 569908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PROPERTY_INDICATE = 0x20; 579908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 589908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 599908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic property: Characteristic supports write with signature 609908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 619908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PROPERTY_SIGNED_WRITE = 0x40; 629908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 639908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 649908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic property: Characteristic has extended properties 659908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 669908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PROPERTY_EXTENDED_PROPS = 0x80; 679908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 689908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 699908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic read permission 709908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 719908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PERMISSION_READ = 0x01; 729908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 739908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 749908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic permission: Allow encrypted read operations 759908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 769908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PERMISSION_READ_ENCRYPTED = 0x02; 779908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 789908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 799908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic permission: Allow reading with man-in-the-middle protection 809908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 819908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PERMISSION_READ_ENCRYPTED_MITM = 0x04; 829908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 839908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 849908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic write permission 859908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 869908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PERMISSION_WRITE = 0x10; 879908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 889908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 899908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic permission: Allow encrypted writes 909908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 919908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PERMISSION_WRITE_ENCRYPTED = 0x20; 929908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 939908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 949908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic permission: Allow encrypted writes with man-in-the-middle 959908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * protection 969908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 979908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PERMISSION_WRITE_ENCRYPTED_MITM = 0x40; 989908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 999908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1009908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic permission: Allow signed write operations 1019908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1029908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PERMISSION_WRITE_SIGNED = 0x80; 1039908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1049908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1059908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic permission: Allow signed write operations with 1069908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * man-in-the-middle protection 1079908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1089908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PERMISSION_WRITE_SIGNED_MITM = 0x100; 1099908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1109908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1119908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Write characteristic, requesting acknoledgement by the remote device 1129908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1139908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int WRITE_TYPE_DEFAULT = 0x02; 1149908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1159908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1169908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Wrtite characteristic without requiring a response by the remote device 1179908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1189908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int WRITE_TYPE_NO_RESPONSE = 0x01; 1199908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1209908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 121ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * Write characteristic including authentication signature 1229908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1239908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int WRITE_TYPE_SIGNED = 0x04; 1249908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1259908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1269908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic value format type uint8 1279908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1289908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int FORMAT_UINT8 = 0x11; 1299908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1309908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1319908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic value format type uint16 1329908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1339908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int FORMAT_UINT16 = 0x12; 1349908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1359908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1369908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic value format type uint32 1379908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1389908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int FORMAT_UINT32 = 0x14; 1399908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1409908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1419908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic value format type sint8 1429908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1439908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int FORMAT_SINT8 = 0x21; 1449908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1459908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1469908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic value format type sint16 1479908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1489908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int FORMAT_SINT16 = 0x22; 1499908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1509908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1519908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic value format type sint32 1529908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1539908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int FORMAT_SINT32 = 0x24; 1549908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1559908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1569908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic value format type sfloat (16-bit float) 1579908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1589908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int FORMAT_SFLOAT = 0x32; 1599908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1609908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1619908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic value format type float (32-bit float) 1629908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1639908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int FORMAT_FLOAT = 0x34; 1649908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1659908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1669908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1679908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * The UUID of this characteristic. 1689908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 1699908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1709908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta protected UUID mUuid; 1719908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1729908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1739908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Instance ID for this characteristic. 1749908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 1759908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1769908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta protected int mInstance; 1779908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1789908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1799908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic properties. 1809908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 1819908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1829908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta protected int mProperties; 1839908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1849908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1859908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic permissions. 1869908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 1879908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1889908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta protected int mPermissions; 1899908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1909908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1919908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Key size (default = 16). 1929908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 1939908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1949908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta protected int mKeySize = 16; 1959908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1969908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1979908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Write type for this characteristic. 1989908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * See WRITE_TYPE_* constants. 1999908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 2009908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 2019908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta protected int mWriteType; 2029908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 2039908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 2049908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Back-reference to the service this characteristic belongs to. 2059908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 2069908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 2079908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta protected BluetoothGattService mService; 2089908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 2099908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 2109908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * The cached value of this characteristic. 2119908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 2129908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 2139908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta protected byte[] mValue; 2149908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 2159908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 2169908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * List of descriptors included in this characteristic. 2179908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 2189908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta protected List<BluetoothGattDescriptor> mDescriptors; 2199908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 2209908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 221ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * Create a new BluetoothGattCharacteristic. 222ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission. 223ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * 224ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * @param uuid The UUID for this characteristic 225ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * @param properties Properties of this characteristic 226ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * @param permissions Permissions for this characteristic 227ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie */ 228ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie public BluetoothGattCharacteristic(UUID uuid, int properties, int permissions) { 229ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie initCharacteristic(null, uuid, 0, properties, permissions); 230ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie } 231ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie 232ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie /** 2339908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Create a new BluetoothGattCharacteristic 2349908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 2359908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 2369908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /*package*/ BluetoothGattCharacteristic(BluetoothGattService service, 2379908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta UUID uuid, int instanceId, 2389908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta int properties, int permissions) { 239ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie initCharacteristic(service, uuid, instanceId, properties, permissions); 240ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie } 241ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie 242ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie private void initCharacteristic(BluetoothGattService service, 243ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie UUID uuid, int instanceId, 244ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie int properties, int permissions) { 2459908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mUuid = uuid; 2469908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mInstance = instanceId; 2479908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mProperties = properties; 2489908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mPermissions = permissions; 2499908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mService = service; 2509908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue = null; 2519908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mDescriptors = new ArrayList<BluetoothGattDescriptor>(); 2529908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 2539908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if ((mProperties & PROPERTY_WRITE_NO_RESPONSE) != 0) { 2549908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mWriteType = WRITE_TYPE_NO_RESPONSE; 2559908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } else { 2569908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mWriteType = WRITE_TYPE_DEFAULT; 2579908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 2589908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 2599908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 2609908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 2619908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Returns the deisred key size. 2629908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 2639908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 2649908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /*package*/ int getKeySize() { 2659908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return mKeySize; 2669908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 2679908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 2689908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 269ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * Adds a descriptor to this characteristic. 270ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission. 271ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * 272ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * @param descriptor Descriptor to be added to this characteristic. 273ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * @return true, if the descriptor was added to the characteristic 2749908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 275ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie public boolean addDescriptor(BluetoothGattDescriptor descriptor) { 2769908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mDescriptors.add(descriptor); 277ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie descriptor.setCharacteristic(this); 278ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie return true; 2799908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 2809908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 2819908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 2829908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Returns the service this characteristic belongs to. 2839908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return The asscociated service 2849908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 2859908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public BluetoothGattService getService() { 2869908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return mService; 2879908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 2889908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 2899908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 290ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * Sets the service associated with this device. 291ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * @hide 292ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie */ 293ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie /*package*/ void setService(BluetoothGattService service) { 294ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie mService = service; 295ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie } 296ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie 297ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie /** 2989908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Returns the UUID of this characteristic 2999908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 3009908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return UUID of this characteristic 3019908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 3029908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public UUID getUuid() { 3039908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return mUuid; 3049908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 3059908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 3069908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 3079908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Returns the instance ID for this characteristic. 3089908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 3099908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>If a remote device offers multiple characteristics with the same UUID, 3109908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * the instance ID is used to distuinguish between characteristics. 3119908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 3129908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return Instance ID of this characteristic 3139908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 3149908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public int getInstanceId() { 3159908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return mInstance; 3169908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 3179908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 3189908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 3199908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Returns the properties of this characteristic. 3209908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 3219908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>The properties contain a bit mask of property flags indicating 3229908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * the features of this characteristic. 3239908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 3249908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return Properties of this characteristic 3259908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 3269908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public int getProperties() { 3279908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return mProperties; 3289908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 3299908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 3309908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 3319908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Returns the permissions for this characteristic. 3329908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 3339908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return Permissions of this characteristic 3349908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 3359908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public int getPermissions() { 3369908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return mPermissions; 3379908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 3389908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 3399908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 3409908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Gets the write type for this characteristic. 3419908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 3429908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return Write type for this characteristic 3439908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 3449908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public int getWriteType() { 3459908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return mWriteType; 3469908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 3479908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 3489908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 3499908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Set the write type for this characteristic 3509908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 3519908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>Setting the write type of a characteristic determines how the 3529908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * {@link BluetoothGatt#writeCharacteristic} function write this 3539908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * characteristic. 3549908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 3559908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param writeType The write type to for this characteristic. Can be one 3569908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * of: 3579908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * {@link #WRITE_TYPE_DEFAULT}, 3589908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * {@link #WRITE_TYPE_NO_RESPONSE} or 3599908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * {@link #WRITE_TYPE_SIGNED}. 3609908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 3619908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public void setWriteType(int writeType) { 3629908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mWriteType = writeType; 3639908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 3649908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 3659908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 366ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * Set the desired key size. 367ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * @hide 368ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie */ 369ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie public void setKeySize(int keySize) { 370ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie mKeySize = keySize; 371ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie } 372ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie 373ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie /** 3749908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Returns a list of descriptors for this characteristic. 3759908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 3769908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return Descriptors for this characteristic 3779908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 3789908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public List<BluetoothGattDescriptor> getDescriptors() { 3799908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return mDescriptors; 3809908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 3819908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 3829908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 3839908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Returns a descriptor with a given UUID out of the list of 3849908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * descriptors for this characteristic. 3859908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 386ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * @return GATT descriptor object or null if no descriptor with the 3879908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * given UUID was found. 3889908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 3899908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public BluetoothGattDescriptor getDescriptor(UUID uuid) { 3909908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta for(BluetoothGattDescriptor descriptor : mDescriptors) { 3919908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if (descriptor.getUuid().equals(uuid)) { 3929908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return descriptor; 3939908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 3949908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 3959908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return null; 3969908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 3979908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 3989908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 3999908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Get the stored value for this characteristic. 4009908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 4019908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>This function returns the stored value for this characteristic as 402ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * retrieved by calling {@link BluetoothGatt#readCharacteristic}. The cached 4039908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * value of the characteristic is updated as a result of a read characteristic 4049908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * operation or if a characteristic update notification has been received. 4059908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 4069908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return Cached value of the characteristic 4079908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 4089908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public byte[] getValue() { 4099908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return mValue; 4109908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 4119908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4129908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 4139908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Return the stored value of this characteristic. 4149908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 4159908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>The formatType parameter determines how the characteristic value 4169908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * is to be interpreted. For example, settting formatType to 4179908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * {@link #FORMAT_UINT16} specifies that the first two bytes of the 4189908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * characteristic value at the given offset are interpreted to generate the 4199908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * return value. 4209908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 4219908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param formatType The format type used to interpret the characteristic 4229908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * value. 4239908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param offset Offset at which the integer value can be found. 4249908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return Cached value of the characteristic or null of offset exceeds 4259908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * value size. 4269908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 4279908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public Integer getIntValue(int formatType, int offset) { 4289908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if ((offset + getTypeLen(formatType)) > mValue.length) return null; 4299908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4309908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta switch (formatType) { 4319908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_UINT8: 4329908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return unsignedByteToInt(mValue[offset]); 4339908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4349908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_UINT16: 4359908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return unsignedBytesToInt(mValue[offset], mValue[offset+1]); 4369908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4379908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_UINT32: 4389908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return unsignedBytesToInt(mValue[offset], mValue[offset+1], 4399908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset+2], mValue[offset+3]); 4409908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_SINT8: 4419908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return unsignedToSigned(unsignedByteToInt(mValue[offset]), 8); 4429908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4439908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_SINT16: 4449908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return unsignedToSigned(unsignedBytesToInt(mValue[offset], 4459908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset+1]), 16); 4469908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4479908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_SINT32: 4489908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return unsignedToSigned(unsignedBytesToInt(mValue[offset], 4499908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset+1], mValue[offset+2], mValue[offset+3]), 32); 4509908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 4519908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4529908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return null; 4539908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 4549908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4559908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 4569908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Return the stored value of this characteristic. 4579908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>See {@link #getValue} for details. 4589908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 4599908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param formatType The format type used to interpret the characteristic 4609908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * value. 4619908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param offset Offset at which the float value can be found. 4629908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return Cached value of the characteristic at a given offset or null 4639908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * if the requested offset exceeds the value size. 4649908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 4659908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public Float getFloatValue(int formatType, int offset) { 4669908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if ((offset + getTypeLen(formatType)) > mValue.length) return null; 4679908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4689908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta switch (formatType) { 4699908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_SFLOAT: 4709908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return bytesToFloat(mValue[offset], mValue[offset+1]); 4719908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4729908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_FLOAT: 4739908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return bytesToFloat(mValue[offset], mValue[offset+1], 4749908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset+2], mValue[offset+3]); 4759908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 4769908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4779908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return null; 4789908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 4799908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4809908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 4819908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Return the stored value of this characteristic. 4829908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>See {@link #getValue} for details. 483ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * 4849908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param offset Offset at which the string value can be found. 4859908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return Cached value of the characteristic 4869908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 4879908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public String getStringValue(int offset) { 4889908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if (offset > mValue.length) return null; 4899908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta byte[] strBytes = new byte[mValue.length - offset]; 4909908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta for (int i=0; i != (mValue.length-offset); ++i) strBytes[i] = mValue[offset+i]; 4919908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return new String(strBytes); 4929908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 4939908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4949908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 4959908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Updates the locally stored value of this characteristic. 4969908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 4979908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>This function modifies the locally stored cached value of this 4989908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * characteristic. To send the value to the remote device, call 4999908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * {@link BluetoothGatt#writeCharacteristic} to send the value to the 5009908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * remote device. 5019908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 5029908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param value New value for this characteristic 5039908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return true if the locally stored value has been set, false if the 5049908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * requested value could not be stored locally. 5059908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 5069908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public boolean setValue(byte[] value) { 5079908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue = value; 5089908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return true; 5099908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 5109908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5119908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 5129908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Set the locally stored value of this characteristic. 5139908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>See {@link #setValue(byte[])} for details. 5149908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 5159908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param value New value for this characteristic 5169908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param formatType Integer format type used to transform the value parameter 5179908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param offset Offset at which the value should be placed 5189908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return true if the locally stored value has been set 5199908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 5209908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public boolean setValue(int value, int formatType, int offset) { 5219908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta int len = offset + getTypeLen(formatType); 5229908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if (mValue == null) mValue = new byte[len]; 5239908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if (len > mValue.length) return false; 5249908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5259908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta switch (formatType) { 5269908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_SINT8: 5279908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta value = intToSignedBits(value, 8); 5289908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta // Fall-through intended 5299908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_UINT8: 5309908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset] = (byte)(value & 0xFF); 5319908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta break; 5329908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5339908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_SINT16: 5349908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta value = intToSignedBits(value, 16); 5359908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta // Fall-through intended 5369908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_UINT16: 5379908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset++] = (byte)(value & 0xFF); 5389908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset] = (byte)((value >> 8) & 0xFF); 5399908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta break; 5409908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5419908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_SINT32: 5429908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta value = intToSignedBits(value, 32); 5439908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta // Fall-through intended 5449908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_UINT32: 5459908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset++] = (byte)(value & 0xFF); 5469908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset++] = (byte)((value >> 8) & 0xFF); 5473f36660a60ce065b71f6d5eb24911012b6d66fddAndre Eisenbach mValue[offset++] = (byte)((value >> 16) & 0xFF); 5483f36660a60ce065b71f6d5eb24911012b6d66fddAndre Eisenbach mValue[offset] = (byte)((value >> 24) & 0xFF); 5499908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta break; 5509908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5519908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta default: 5529908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return false; 5539908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 5549908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return true; 5559908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 5569908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5579908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 5589908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Set the locally stored value of this characteristic. 5599908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>See {@link #setValue(byte[])} for details. 560ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * 5619908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param mantissa Mantissa for this characteristic 5629908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param exponent exponent value for this characteristic 5639908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param formatType Float format type used to transform the value parameter 5649908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param offset Offset at which the value should be placed 5659908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return true if the locally stored value has been set 5669908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 5679908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public boolean setValue(int mantissa, int exponent, int formatType, int offset) { 5689908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta int len = offset + getTypeLen(formatType); 5699908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if (mValue == null) mValue = new byte[len]; 5709908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if (len > mValue.length) return false; 5719908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5729908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta switch (formatType) { 5739908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_SFLOAT: 5749908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mantissa = intToSignedBits(mantissa, 12); 5759908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta exponent = intToSignedBits(exponent, 4); 5769908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset++] = (byte)(mantissa & 0xFF); 5779908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset] = (byte)((mantissa >> 8) & 0x0F); 5789908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset] += (byte)((exponent & 0x0F) << 4); 5799908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta break; 5809908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5819908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_FLOAT: 5829908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mantissa = intToSignedBits(mantissa, 24); 5839908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta exponent = intToSignedBits(exponent, 8); 5849908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset++] = (byte)(mantissa & 0xFF); 5859908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset++] = (byte)((mantissa >> 8) & 0xFF); 5869908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset++] = (byte)((mantissa >> 16) & 0xFF); 5879908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset] += (byte)(exponent & 0xFF); 5889908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta break; 5899908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5909908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta default: 5919908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return false; 5929908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 5939908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5949908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return true; 5959908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 5969908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5979908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 5989908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Set the locally stored value of this characteristic. 5999908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>See {@link #setValue(byte[])} for details. 600ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * 6019908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param value New value for this characteristic 6029908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return true if the locally stored value has been set 6039908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 6049908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public boolean setValue(String value) { 6059908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue = value.getBytes(); 6069908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return true; 6079908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 6089908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6099908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 6109908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Returns the size of a give value type. 6119908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 6129908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta private int getTypeLen(int formatType) { 6139908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return formatType & 0xF; 6149908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 6159908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6169908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 6179908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Convert a signed byte to an unsigned int. 6189908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 6199908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta private int unsignedByteToInt(byte b) { 6209908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return b & 0xFF; 6219908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 6229908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6239908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 6249908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Convert signed bytes to a 16-bit unsigned int. 6259908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 6269908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta private int unsignedBytesToInt(byte b0, byte b1) { 6279908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return (unsignedByteToInt(b0) + (unsignedByteToInt(b1) << 8)); 6289908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 6299908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6309908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 6319908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Convert signed bytes to a 32-bit unsigned int. 6329908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 6339908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta private int unsignedBytesToInt(byte b0, byte b1, byte b2, byte b3) { 6349908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return (unsignedByteToInt(b0) + (unsignedByteToInt(b1) << 8)) 6359908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta + (unsignedByteToInt(b2) << 16) + (unsignedByteToInt(b3) << 24); 6369908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 6379908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6389908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 6399908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Convert signed bytes to a 16-bit short float value. 6409908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 6419908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta private float bytesToFloat(byte b0, byte b1) { 6429908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta int mantissa = unsignedToSigned(unsignedByteToInt(b0) 6439908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta + ((unsignedByteToInt(b1) & 0x0F) << 8), 12); 6449908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta int exponent = unsignedToSigned(unsignedByteToInt(b1) >> 4, 4); 6459908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return (float)(mantissa * Math.pow(10, exponent)); 6469908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 6479908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6489908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 6499908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Convert signed bytes to a 32-bit short float value. 6509908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 6519908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta private float bytesToFloat(byte b0, byte b1, byte b2, byte b3) { 6529908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta int mantissa = unsignedToSigned(unsignedByteToInt(b0) 6539908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta + (unsignedByteToInt(b1) << 8) 6549908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta + (unsignedByteToInt(b2) << 16), 24); 6559908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return (float)(mantissa * Math.pow(10, b3)); 6569908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 6579908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6589908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 6599908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Convert an unsigned integer value to a two's-complement encoded 6609908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * signed value. 6619908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 6629908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta private int unsignedToSigned(int unsigned, int size) { 6639908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if ((unsigned & (1 << size-1)) != 0) { 6649908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta unsigned = -1 * ((1 << size-1) - (unsigned & ((1 << size-1) - 1))); 6659908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 6669908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return unsigned; 6679908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 6689908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6699908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 6709908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Convert an integer into the signed bits of a given length. 6719908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 6729908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta private int intToSignedBits(int i, int size) { 6739908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if (i < 0) { 6749908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta i = (1 << size-1) + (i & ((1 << size-1) - 1)); 6759908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 6769908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return i; 6779908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 6789908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta} 679