package com.blakequ.bluetooth_manager_lib.device.ibeacon;
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import com.blakequ.bluetooth_manager_lib.device.BeaconManufacturerData;
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import com.blakequ.bluetooth_manager_lib.device.BeaconType;
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import com.blakequ.bluetooth_manager_lib.device.BluetoothLeDevice;
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import com.blakequ.bluetooth_manager_lib.device.adrecord.AdRecord;
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import com.blakequ.bluetooth_manager_lib.util.ByteUtils;
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import java.util.Arrays;
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/**
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* Parses the Manufactured Data field of an iBeacon
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* <p>
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* The parsing is based on the following schema:
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* <pre>
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* Byte|Value
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* -------------------------------------------------
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* 0 4C - Byte 1 (LSB) of Company identifier code
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* 1 00 - Byte 0 (MSB) of Company identifier code (0x004C == Apple)
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* 2 02 - Byte 0 of iBeacon advertisement indicator
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* 3 15 - Byte 1 of iBeacon advertisement indicator
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* 4 e2 |\
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* 5 c5 |\\
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* 6 6d |#\\
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* 7 b5 |##\\
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* 8 df |###\\
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* 9 fb |####\\
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* 10 48 |#####\\
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* 11 d2 |#####|| iBeacon
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* 12 b0 |#####|| Proximity UUID
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* 13 60 |#####//
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* 14 d0 |####//
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* 15 f5 |###//
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* 16 a7 |##//
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* 17 10 |#//
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* 18 96 |//
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* 19 e0 |/
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* 20 00 - major
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* 21 00
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* 22 00 - minor
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* 23 00
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* 24 c5 - The 2's complement of the calibrated Tx Power
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* </pre>
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* @author Alexandros Schillings
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*/
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public final class IBeaconManufacturerData extends BeaconManufacturerData {
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private final int mCalibratedTxPower;
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private final int mCompanyIdentidier;
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private final int mIBeaconAdvertisment;
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private final int mMajor;
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private final int mMinor;
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private final String mUUID;
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/**
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* Instantiates a new iBeacon manufacturer data object.
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*
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* @param device a {@link BluetoothLeDevice}
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* @throws IllegalArgumentException if the data is not from an iBeacon.
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*/
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public IBeaconManufacturerData(final BluetoothLeDevice device) {
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this(device.getAdRecordStore().getRecord(AdRecord.TYPE_MANUFACTURER_SPECIFIC_DATA).getData());
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}
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/**
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* Instantiates a new iBeacon manufacturer data object.
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*
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* @param manufacturerData the {@link AdRecord#TYPE_MANUFACTURER_SPECIFIC_DATA} data array
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* @throws IllegalArgumentException if the data is not from an iBeacon.
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*/
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public IBeaconManufacturerData(final byte[] manufacturerData) {
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super(BeaconType.IBEACON, manufacturerData);
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final byte[] intArray = Arrays.copyOfRange(manufacturerData, 0, 2);
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ByteUtils.invertArray(intArray);
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mCompanyIdentidier = ByteUtils.getIntFrom2ByteArray(intArray);
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mIBeaconAdvertisment = ByteUtils.getIntFrom2ByteArray(Arrays.copyOfRange(manufacturerData, 2, 4));
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mUUID = IBeaconUtils.calculateUuidString(Arrays.copyOfRange(manufacturerData, 4, 20));
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mMajor = ByteUtils.getIntFrom2ByteArray(Arrays.copyOfRange(manufacturerData, 20, 22));
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mMinor = ByteUtils.getIntFrom2ByteArray(Arrays.copyOfRange(manufacturerData, 22, 24));
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mCalibratedTxPower = manufacturerData[24];
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}
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/**
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* Gets the calibrated TX power of the iBeacon device as reported.
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*
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* @return the calibrated TX power
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*/
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public int getCalibratedTxPower() {
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return mCalibratedTxPower;
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}
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/**
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* Gets the iBeacon company identifier.
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*
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* @return the company identifier
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*/
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public int getCompanyIdentifier() {
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return mCompanyIdentidier;
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}
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public int getIBeaconAdvertisement() {
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return mIBeaconAdvertisment;
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}
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/**
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* Gets the iBeacon Major value.
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*
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* @return the Major value
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*/
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public int getMajor() {
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return mMajor;
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}
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/**
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* Gets the iBeacon Minor value.
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*
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* @return the Minor value
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*/
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public int getMinor() {
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return mMinor;
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}
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/**
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* Gets the iBeacon UUID.
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*
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* @return the UUID
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*/
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public String getUUID() {
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return mUUID;
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}
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}
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