private void sendBeaconChangeMessage(Beacon beacon) {
String uuid = beacon.getId1().toString();
// Payload
SaneJSONObject payload = new SaneJSONObject();
payload.putOrIgnore("platform", "android");
payload.putDoubleOrIgnore("version", VERSION);
// Beacon
SaneJSONObject beaconJSON = new SaneJSONObject();
beaconJSON.putOrIgnore("uuid", uuid);
payload.putJSONOrIgnore("beacon", beaconJSON);
// Proximity
payload.putJSONOrIgnore("proximity", getProximity(beacon));
// Message
SaneJSONObject message = new SaneJSONObject();
JSONArray devices = new JSONArray();
devices.put("*");
message.putArrayOrIgnore("devices", devices);
message.putJSONOrIgnore("payload", payload);
message.putOrIgnore("topic", "location_update");
// Send
BeaconInfo beaconInfo = getBeaconInfo(this.beaconInfo, uuid);
Double distance = beacon.getDistance();
if (beaconInfo.hasChangedDistance(distance)) {
meshblu.message(message);
emitter.emit(EVENTS.LOCATION_UPDATE, payload, beaconInfo);
}
beaconInfo.setLastDistance(distance);
}
/**
* Estimate the distance to the beacon using the DistanceCalculator set on this class. If no
* DistanceCalculator has been set, return -1 as the distance.
*
* @see org.altbeacon.beacon.distance.DistanceCalculator
* @param txPower
* @param bestRssiAvailable
* @return
*/
protected static Double calculateDistance(int txPower, double bestRssiAvailable) {
if (Beacon.getDistanceCalculator() != null) {
return Beacon.getDistanceCalculator().calculateDistance(txPower, bestRssiAvailable);
} else {
LogManager.e(TAG, "Distance calculator not set. Distance will bet set to -1");
return -1.0;
}
}
/**
* 每个扫描周期结束，根据20秒内各beacon的RSSI平均值计算它的距离，该回调获取这些beacon的距离值 Called once per second (实际上是每扫描周期)
* to give an estimate of the mDistance to visible beacons
*/
@Override
public void didRangeBeaconsInRegion(Collection<Beacon> beacons, Region region) {
LogManager.d(TAG, "didRangeBeaconsInRegion(),beacons=" + beacons.size());
for (Beacon beacon : beacons) {
LogManager.d(TAG, beacon.getId2() + ":" + beacon.getId3() + "," + beacon.getDistance());
}
Beacon beacon = mNearestBeacon.getNearestBeacon(mGetBeaconType, beacons);
mOnNearestBeaconListener.getNearestBeacon(mGetBeaconType, beacon);
}
/**
* @param beacon the beacon whose fields we should copy to this beacon builder
* @return
*/
public Builder copyBeaconFields(Beacon beacon) {
setIdentifiers(beacon.getIdentifiers());
setBeaconTypeCode(beacon.getBeaconTypeCode());
setDataFields(beacon.getDataFields());
setBluetoothAddress(beacon.getBluetoothAddress());
setBluetoothName(beacon.getBluetoothName());
setExtraDataFields(beacon.getExtraDataFields());
setManufacturer(beacon.getManufacturer());
setTxPower(beacon.getTxPower());
setRssi(beacon.getRssi());
setServiceUuid(beacon.getServiceUuid());
return this;
}
@Test
public void gattBeaconExtraDataAreNotOverwritten() {
Beacon beacon = getGattBeacon();
Beacon extraDataBeacon = getGattBeaconExtraData();
GattBeaconTracker tracker = new GattBeaconTracker();
tracker.track(beacon);
tracker.track(extraDataBeacon);
Beacon trackedBeacon = tracker.track(beacon);
assertEquals(
"extra data should not be overwritten",
extraDataBeacon.getDataFields(),
trackedBeacon.getExtraDataFields());
}
public void didRangeBeaconsInRegion(Collection<Beacon> beacons, Region region) {
if (beacons.size() > 0) {
EditText editText = (EditText) RangingActivity.this.findViewById(R.id.rangingText);
for (Beacon beacon : beacons) {
logToDisplay(
"Beacon "
+ beacon.toString()
+ " is about "
+ beacon.getDistance()
+ " meters away, with Rssi: "
+ beacon.getRssi());
}
}
}
@Override
public void getBeacons(Collection<Beacon> beacons) {
// 防止停止收集beacons前，再次收到此回调，导致重复记录，在开始和结束监控（查找）beacons时设置。
if (isRecorded) return; // 已经记录了
// 日志记录和屏幕显示Beacon信息
// 有可能到达采样周期时，没有找到所有beacons，甚至是0个beacons，因此，应重复记录，一直到采样周期结束。当然是最后更新的有效。
String str = "beacons=" + beacons.size();
LogManager.d(TAG, str);
logToDisplay(str);
String rssi;
for (Beacon beacon : beacons) {
// becaon的两个id(major,minor)，rssi及其平均值
str =
beacon.getId2()
+ ":"
+ beacon.getId3()
+ "="
+ beacon.getRssi()
+ ","
+ String.format("%.2f", beacon.getRunningAverageRssi());
LogManager.d(TAG, str);
logToDisplay(str);
// 记录至mBeaconsRssi
rssi =
beacon.getId2()
+ "_"
+ beacon.getId3()
+ ":"
+ String.format("%.2f", beacon.getRunningAverageRssi());
mBeaconsRssi.put(beacon, rssi);
}
// 记录参考点的各个beacon的id和rssi平均值
if ((System.currentTimeMillis() - startSample) >= SamplePeroid) {
// 将目前定位参考点测量的各个beacons的rssi平均值计入数据库。
SaveRssiToDb();
str =
"记录完毕，定位参考点[" + reference_pointPerf + reference_pointNum + "]" + "各个beacon的rssi平均值";
LogManager.d(TAG, str);
logToDisplay(str);
// 以下必须在UI现成中执行，否则，程序将异常终止。
runOnUiThread(
new Runnable() {
public void run() {
String str = "记录完毕，定位参考点[" + reference_pointPerf + reference_pointNum + "]";
Toast.makeText(trainingActivity.this, str, Toast.LENGTH_LONG).show();
// 下一个参考点默认名称
reference_pointNum++;
reference_point_edit.setText(reference_pointPerf + reference_pointNum);
// 停止查找beacons
onMonitoringStop(null);
}
});
}
}
@Test
public void gattBeaconExtraDataGetUpdated() {
Beacon beacon = getGattBeacon();
Beacon extraDataBeacon = getGattBeaconExtraData();
Beacon extraDataBeacon2 = getGattBeaconExtraData2();
GattBeaconTracker tracker = new GattBeaconTracker();
tracker.track(beacon);
tracker.track(extraDataBeacon);
tracker.track(extraDataBeacon2);
Beacon trackedBeacon = tracker.track(beacon);
assertEquals(
"extra data is updated",
extraDataBeacon2.getDataFields(),
trackedBeacon.getExtraDataFields());
}
/**
* @see Beacon#mIdentifiers
* @param identifiers identifiers to set
* @return builder
*/
public Builder setIdentifiers(List<Identifier> identifiers) {
mId1 = null;
mId2 = null;
mId3 = null;
mBeacon.mIdentifiers = identifiers;
return this;
}
private void beaconRangeChange(Collection<Beacon> beacons, Region region) {
for (Beacon beacon : beacons) {
String uuid = beacon.getId1().toString();
DecimalFormat df = new DecimalFormat("#.000");
String distance = df.format(beacon.getDistance());
Log.d(TAG, "Beacon (" + uuid.substring(0, 8) + ") is about " + distance + " meters away.");
Boolean enabled = isBeaconEnabled(uuid);
if (enabled != null) {
if (enabled) {
sendBeaconChangeMessage(beacon);
}
} else {
emitter.emit(EVENTS.DISCOVERED_BEACON, beacon);
}
}
}
/**
* Two detected beacons are considered equal if they share the same three identifiers, regardless
* of their mDistance or RSSI.
*/
@Override
public boolean equals(Object that) {
if (!(that instanceof Beacon)) {
return false;
}
Beacon thatBeacon = (Beacon) that;
if (this.mIdentifiers.size() != thatBeacon.mIdentifiers.size()) {
return false;
}
// all identifiers must match
for (int i = 0; i < this.mIdentifiers.size(); i++) {
if (!this.mIdentifiers.get(i).equals(thatBeacon.mIdentifiers.get(i))) {
return false;
}
}
return sHardwareEqualityEnforced
? this.getBluetoothAddress().equals(thatBeacon.getBluetoothAddress())
: true;
}
private SaneJSONObject getProximity(Beacon beacon) {
Double distance = beacon.getDistance();
String proximity = "Unknown";
Integer code = 0;
if (distance < 2) {
code = 1;
proximity = "Immediate";
} else if (distance >= 2 && distance < 5) {
code = 2;
proximity = "Near";
} else if (distance >= 5) {
code = 3;
proximity = "Far";
}
SaneJSONObject proximityJSON = new SaneJSONObject();
proximityJSON.putOrIgnore("message", proximity);
proximityJSON.putIntOrIgnore("code", code);
proximityJSON.putDoubleOrIgnore("distance", distance);
proximityJSON.putIntOrIgnore("rssi", beacon.getRssi());
Long time = new Date().getTime();
proximityJSON.putOrIgnore("timestamp", new Timestamp(time).toString());
return proximityJSON;
}
/**
* Copy constructor
*
* @param otherBeacon
*/
protected Beacon(Beacon otherBeacon) {
super();
mIdentifiers = new ArrayList<Identifier>(otherBeacon.mIdentifiers.size());
mDataFields = new ArrayList<Long>(otherBeacon.mDataFields.size());
mExtraDataFields = new ArrayList<Long>(otherBeacon.mExtraDataFields.size());
for (int i = 0; i < otherBeacon.mIdentifiers.size(); i++) {
mIdentifiers.add(otherBeacon.mIdentifiers.get(i));
}
for (int i = 0; i < otherBeacon.mDataFields.size(); i++) {
mDataFields.add(otherBeacon.mDataFields.get(i));
}
for (int i = 0; i < otherBeacon.mExtraDataFields.size(); i++) {
mExtraDataFields.add(otherBeacon.mExtraDataFields.get(i));
}
this.mDistance = otherBeacon.mDistance;
this.mRunningAverageRssi = otherBeacon.mRunningAverageRssi;
this.mRssi = otherBeacon.mRssi;
this.mTxPower = otherBeacon.mTxPower;
this.mBluetoothAddress = otherBeacon.mBluetoothAddress;
this.mBeaconTypeCode = otherBeacon.getBeaconTypeCode();
this.mServiceUuid = otherBeacon.getServiceUuid();
this.mBluetoothName = otherBeacon.mBluetoothName;
}
@Test
public void gattBeaconFieldsGetUpdated() {
Beacon beacon = getGattBeacon();
Beacon beaconUpdate = getGattBeaconUpdate();
Beacon extraDataBeacon = getGattBeaconExtraData();
GattBeaconTracker tracker = new GattBeaconTracker();
tracker.track(beacon);
Beacon trackedBeacon = tracker.track(beaconUpdate);
assertEquals("rssi should be updated", beaconUpdate.getRssi(), trackedBeacon.getRssi());
assertEquals(
"data fields should be updated",
beaconUpdate.getDataFields(),
trackedBeacon.getDataFields());
}
/**
* @see Beacon#mTxPower
* @param txPower
* @return builder
*/
public Builder setTxPower(int txPower) {
mBeacon.mTxPower = txPower;
return this;
}
/**
* @see Beacon#mBluetoothName
* @param name
* @return builder
*/
public Builder setBluetoothName(String name) {
mBeacon.mBluetoothName = name;
return this;
}
/**
* @see Beacon#mManufacturer
* @param manufacturer
* @return builder
*/
public Builder setManufacturer(int manufacturer) {
mBeacon.mManufacturer = manufacturer;
return this;
}
/**
* @see Beacon#mDataFields
* @param extraDataFields
* @return builder
*/
public Builder setExtraDataFields(List<Long> extraDataFields) {
mBeacon.mExtraDataFields = extraDataFields;
return this;
}
/**
* @see Beacon#mDataFields
* @param dataFields
* @return builder
*/
public Builder setDataFields(List<Long> dataFields) {
mBeacon.mDataFields = dataFields;
return this;
}
/**
* @see Beacon#mBluetoothAddress
* @param bluetoothAddress
* @return builder
*/
public Builder setBluetoothAddress(String bluetoothAddress) {
mBeacon.mBluetoothAddress = bluetoothAddress;
return this;
}
/**
* @see Beacon#mServiceUuid
* @param serviceUuid
* @return builder
*/
public Builder setServiceUuid(int serviceUuid) {
mBeacon.mServiceUuid = serviceUuid;
return this;
}
/**
* @see Beacon#mBeaconTypeCode
* @param beaconTypeCode
* @return builder
*/
public Builder setBeaconTypeCode(int beaconTypeCode) {
mBeacon.mBeaconTypeCode = beaconTypeCode;
return this;
}
/**
* Get BLE advertisement bytes for a Beacon
*
* @param beacon the beacon containing the data to be transmitted
* @return the byte array of the advertisement
*/
@TargetApi(Build.VERSION_CODES.GINGERBREAD)
public byte[] getBeaconAdvertisementData(Beacon beacon) {
byte[] advertisingBytes;
if (beacon.getIdentifiers().size() != getIdentifierCount()) {
throw new IllegalArgumentException(
"Beacon has "
+ beacon.getIdentifiers().size()
+ " identifiers but format requires "
+ getIdentifierCount());
}
int lastIndex = -1;
if (mMatchingBeaconTypeCodeEndOffset != null && mMatchingBeaconTypeCodeEndOffset > lastIndex) {
lastIndex = mMatchingBeaconTypeCodeEndOffset;
}
if (mPowerEndOffset != null && mPowerEndOffset > lastIndex) {
lastIndex = mPowerEndOffset;
}
for (int identifierNum = 0;
identifierNum < this.mIdentifierEndOffsets.size();
identifierNum++) {
if (this.mIdentifierEndOffsets.get(identifierNum) != null
&& this.mIdentifierEndOffsets.get(identifierNum) > lastIndex) {
lastIndex = this.mIdentifierEndOffsets.get(identifierNum);
}
}
for (int identifierNum = 0; identifierNum < this.mDataEndOffsets.size(); identifierNum++) {
if (this.mDataEndOffsets.get(identifierNum) != null
&& this.mDataEndOffsets.get(identifierNum) > lastIndex) {
lastIndex = this.mDataEndOffsets.get(identifierNum);
}
}
// we must adjust the lastIndex to account for variable length identifiers, if there are any.
int adjustedIdentifiersLength = 0;
for (int identifierNum = 0;
identifierNum < this.mIdentifierStartOffsets.size();
identifierNum++) {
if (mIdentifierVariableLengthFlags.get(identifierNum)) {
int declaredIdentifierLength =
(this.mIdentifierEndOffsets.get(identifierNum)
- this.mIdentifierStartOffsets.get(identifierNum)
+ 1);
int actualIdentifierLength = beacon.getIdentifier(identifierNum).getByteCount();
adjustedIdentifiersLength += actualIdentifierLength;
adjustedIdentifiersLength -= declaredIdentifierLength;
}
}
lastIndex += adjustedIdentifiersLength;
advertisingBytes = new byte[lastIndex + 1 - 2];
long beaconTypeCode = this.getMatchingBeaconTypeCode();
// set type code
for (int index = this.mMatchingBeaconTypeCodeStartOffset;
index <= this.mMatchingBeaconTypeCodeEndOffset;
index++) {
byte value =
(byte)
(this.getMatchingBeaconTypeCode()
>> (8 * (this.mMatchingBeaconTypeCodeEndOffset - index))
& 0xff);
advertisingBytes[index - 2] = value;
}
// set identifiers
for (int identifierNum = 0;
identifierNum < this.mIdentifierStartOffsets.size();
identifierNum++) {
byte[] identifierBytes =
beacon
.getIdentifier(identifierNum)
.toByteArrayOfSpecifiedEndianness(
!this.mIdentifierLittleEndianFlags.get(identifierNum));
// If the identifier we are trying to stuff into the space is different than the space
// available
// adjust it
if (identifierBytes.length < getIdentifierByteCount(identifierNum)) {
if (!mIdentifierVariableLengthFlags.get(identifierNum)) {
// Pad it, but only if this is not a variable length identifier
if (mIdentifierLittleEndianFlags.get(identifierNum)) {
// this is little endian. Pad at the end of the array
identifierBytes = Arrays.copyOf(identifierBytes, getIdentifierByteCount(identifierNum));
} else {
// this is big endian. Pad at the beginning of the array
byte[] newIdentifierBytes = new byte[getIdentifierByteCount(identifierNum)];
System.arraycopy(
identifierBytes,
0,
newIdentifierBytes,
getIdentifierByteCount(identifierNum) - identifierBytes.length,
identifierBytes.length);
identifierBytes = newIdentifierBytes;
}
}
LogManager.d(
TAG,
"Expanded identifier because it is too short. It is now: "
+ byteArrayToString(identifierBytes));
} else if (identifierBytes.length > getIdentifierByteCount(identifierNum)) {
if (mIdentifierLittleEndianFlags.get(identifierNum)) {
// Truncate it at the beginning for big endian
identifierBytes =
Arrays.copyOfRange(
identifierBytes,
getIdentifierByteCount(identifierNum) - identifierBytes.length,
getIdentifierByteCount(identifierNum));
} else {
// Truncate it at the end for little endian
identifierBytes = Arrays.copyOf(identifierBytes, getIdentifierByteCount(identifierNum));
}
LogManager.d(
TAG,
"Truncated identifier because it is too long. It is now: "
+ byteArrayToString(identifierBytes));
} else {
LogManager.d(TAG, "Identifier size is just right: " + byteArrayToString(identifierBytes));
}
for (int index = this.mIdentifierStartOffsets.get(identifierNum);
index <= this.mIdentifierStartOffsets.get(identifierNum) + identifierBytes.length - 1;
index++) {
advertisingBytes[index - 2] =
(byte) identifierBytes[index - this.mIdentifierStartOffsets.get(identifierNum)];
}
}
// set power
for (int index = this.mPowerStartOffset; index <= this.mPowerEndOffset; index++) {
advertisingBytes[index - 2] =
(byte) (beacon.getTxPower() >> (8 * (index - this.mPowerStartOffset)) & 0xff);
}
// set data fields
for (int dataFieldNum = 0; dataFieldNum < this.mDataStartOffsets.size(); dataFieldNum++) {
long dataField = beacon.getDataFields().get(dataFieldNum);
for (int index = this.mDataStartOffsets.get(dataFieldNum);
index <= this.mDataEndOffsets.get(dataFieldNum);
index++) {
int endianCorrectedIndex = index;
if (this.mDataLittleEndianFlags.get(dataFieldNum)) {
endianCorrectedIndex = this.mDataEndOffsets.get(dataFieldNum) - index;
}
advertisingBytes[endianCorrectedIndex - 2] =
(byte) (dataField >> (8 * (index - this.mDataStartOffsets.get(dataFieldNum))) & 0xff);
}
}
return advertisingBytes;
}
/**
* @see Beacon#mRssi
* @param rssi
* @return builder
*/
public Builder setRssi(int rssi) {
mBeacon.mRssi = rssi;
return this;
}
@TargetApi(5)
protected Beacon fromScanData(
byte[] bytesToProcess, int rssi, BluetoothDevice device, Beacon beacon) {
BleAdvertisement advert = new BleAdvertisement(bytesToProcess);
boolean parseFailed = false;
Pdu pduToParse = null;
int startByte = 0;
ArrayList<Identifier> identifiers = new ArrayList<Identifier>();
ArrayList<Long> dataFields = new ArrayList<Long>();
for (Pdu pdu : advert.getPdus()) {
if (pdu.getType() == Pdu.GATT_SERVICE_UUID_PDU_TYPE
|| pdu.getType() == Pdu.MANUFACTURER_DATA_PDU_TYPE) {
pduToParse = pdu;
if (LogManager.isVerboseLoggingEnabled()) {
LogManager.d(
TAG,
"Processing pdu type %02X: %s with startIndex: %d, endIndex: %d",
pdu.getType(),
bytesToHex(bytesToProcess),
pdu.getStartIndex(),
pdu.getEndIndex());
}
break;
} else {
if (LogManager.isVerboseLoggingEnabled()) {
LogManager.d(TAG, "Ignoring pdu type %02X", pdu.getType());
}
}
}
if (pduToParse == null) {
if (LogManager.isVerboseLoggingEnabled()) {
LogManager.d(TAG, "No PDUs to process in this packet.");
}
parseFailed = true;
} else {
byte[] serviceUuidBytes = null;
byte[] typeCodeBytes =
longToByteArray(
getMatchingBeaconTypeCode(),
mMatchingBeaconTypeCodeEndOffset - mMatchingBeaconTypeCodeStartOffset + 1);
if (getServiceUuid() != null) {
serviceUuidBytes =
longToByteArray(
getServiceUuid(), mServiceUuidEndOffset - mServiceUuidStartOffset + 1, false);
}
startByte = pduToParse.getStartIndex();
boolean patternFound = false;
if (getServiceUuid() == null) {
if (byteArraysMatch(
bytesToProcess, startByte + mMatchingBeaconTypeCodeStartOffset, typeCodeBytes, 0)) {
patternFound = true;
}
} else {
if (byteArraysMatch(
bytesToProcess, startByte + mServiceUuidStartOffset, serviceUuidBytes, 0)
&& byteArraysMatch(
bytesToProcess, startByte + mMatchingBeaconTypeCodeStartOffset, typeCodeBytes, 0)) {
patternFound = true;
}
}
if (patternFound == false) {
// This is not a beacon
if (getServiceUuid() == null) {
if (LogManager.isVerboseLoggingEnabled()) {
LogManager.d(
TAG,
"This is not a matching Beacon advertisement. (Was expecting %s. "
+ "The bytes I see are: %s",
byteArrayToString(typeCodeBytes),
bytesToHex(bytesToProcess));
}
} else {
if (LogManager.isVerboseLoggingEnabled()) {
LogManager.d(
TAG,
"This is not a matching Beacon advertisement. Was expecting %s at offset %d and %s at offset %d. "
+ "The bytes I see are: %s",
byteArrayToString(serviceUuidBytes),
startByte + mServiceUuidStartOffset,
byteArrayToString(typeCodeBytes),
startByte + mMatchingBeaconTypeCodeStartOffset,
bytesToHex(bytesToProcess));
}
}
parseFailed = true;
beacon = null;
} else {
if (LogManager.isVerboseLoggingEnabled()) {
LogManager.d(
TAG,
"This is a recognized beacon advertisement -- %s seen",
byteArrayToString(typeCodeBytes));
}
}
if (patternFound) {
if (bytesToProcess.length <= startByte + mLayoutSize && mAllowPduOverflow) {
// If the layout size is bigger than this PDU, and we allow overflow. Make sure
// the byte buffer is big enough by zero padding the end so we don't try to read
// outside the byte array of the advertisement
if (LogManager.isVerboseLoggingEnabled()) {
LogManager.d(
TAG,
"Expanding buffer because it is too short to parse: "
+ bytesToProcess.length
+ ", needed: "
+ (startByte + mLayoutSize));
}
bytesToProcess = ensureMaxSize(bytesToProcess, startByte + mLayoutSize);
}
for (int i = 0; i < mIdentifierEndOffsets.size(); i++) {
int endIndex = mIdentifierEndOffsets.get(i) + startByte;
if (endIndex > pduToParse.getEndIndex() && mIdentifierVariableLengthFlags.get(i)) {
if (LogManager.isVerboseLoggingEnabled()) {
LogManager.d(
TAG, "Need to truncate identifier by " + (endIndex - pduToParse.getEndIndex()));
}
// If this is a variable length identifier, we truncate it to the size that
// is available in the packet
Identifier identifier =
Identifier.fromBytes(
bytesToProcess,
mIdentifierStartOffsets.get(i) + startByte,
pduToParse.getEndIndex() + 1,
mIdentifierLittleEndianFlags.get(i));
identifiers.add(identifier);
} else if (endIndex > pduToParse.getEndIndex() && !mAllowPduOverflow) {
parseFailed = true;
if (LogManager.isVerboseLoggingEnabled()) {
LogManager.d(
TAG,
"Cannot parse identifier "
+ i
+ " because PDU is too short. endIndex: "
+ endIndex
+ " PDU endIndex: "
+ pduToParse.getEndIndex());
}
} else {
Identifier identifier =
Identifier.fromBytes(
bytesToProcess,
mIdentifierStartOffsets.get(i) + startByte,
endIndex + 1,
mIdentifierLittleEndianFlags.get(i));
identifiers.add(identifier);
}
}
for (int i = 0; i < mDataEndOffsets.size(); i++) {
int endIndex = mDataEndOffsets.get(i) + startByte;
if (endIndex > pduToParse.getEndIndex() && !mAllowPduOverflow) {
if (LogManager.isVerboseLoggingEnabled()) {
LogManager.d(
TAG,
"Cannot parse data field "
+ i
+ " because PDU is too short. endIndex: "
+ endIndex
+ " PDU endIndex: "
+ pduToParse.getEndIndex()
+ ". Setting value to 0");
}
dataFields.add(new Long(0l));
} else {
String dataString =
byteArrayToFormattedString(
bytesToProcess,
mDataStartOffsets.get(i) + startByte,
endIndex,
mDataLittleEndianFlags.get(i));
dataFields.add(Long.parseLong(dataString));
}
}
if (mPowerStartOffset != null) {
int endIndex = mPowerEndOffset + startByte;
int txPower = 0;
try {
if (endIndex > pduToParse.getEndIndex() && !mAllowPduOverflow) {
parseFailed = true;
if (LogManager.isVerboseLoggingEnabled()) {
LogManager.d(
TAG,
"Cannot parse power field because PDU is too short. endIndex: "
+ endIndex
+ " PDU endIndex: "
+ pduToParse.getEndIndex());
}
} else {
String powerString =
byteArrayToFormattedString(
bytesToProcess,
mPowerStartOffset + startByte,
mPowerEndOffset + startByte,
false);
txPower = Integer.parseInt(powerString) + mDBmCorrection;
// make sure it is a signed integer
if (txPower > 127) {
txPower -= 256;
}
beacon.mTxPower = txPower;
}
} catch (NumberFormatException e1) {
// keep default value
} catch (NullPointerException e2) {
// keep default value
}
}
}
}
if (parseFailed) {
beacon = null;
} else {
int beaconTypeCode = 0;
String beaconTypeString =
byteArrayToFormattedString(
bytesToProcess,
mMatchingBeaconTypeCodeStartOffset + startByte,
mMatchingBeaconTypeCodeEndOffset + startByte,
false);
beaconTypeCode = Integer.parseInt(beaconTypeString);
// TODO: error handling needed on the parse
int manufacturer = 0;
String manufacturerString =
byteArrayToFormattedString(bytesToProcess, startByte, startByte + 1, true);
manufacturer = Integer.parseInt(manufacturerString);
String macAddress = null;
String name = null;
if (device != null) {
macAddress = device.getAddress();
name = device.getName();
}
beacon.mIdentifiers = identifiers;
beacon.mDataFields = dataFields;
beacon.mRssi = rssi;
beacon.mBeaconTypeCode = beaconTypeCode;
if (mServiceUuid != null) {
beacon.mServiceUuid = (int) mServiceUuid.longValue();
} else {
beacon.mServiceUuid = -1;
}
beacon.mBluetoothAddress = macAddress;
beacon.mBluetoothName = name;
beacon.mManufacturer = manufacturer;
beacon.mParserIdentifier = mIdentifier;
}
return beacon;
}
