/**
* Parses the given byte array and returns a Generic XBee packet.
*
* @param packet The byte array to parse.
* @param mode The operating mode to parse the packet (API 1 or API 2).
*
* @return The generated Generic XBee Packet.
*
* @throws ArgumentException if {@code mode != OperatingMode.API } and
* if {@code mode != OperatingMode.API_ESCAPE}
* or if {@code packet.Length == 0}.
* @throws InvalidPacketException if the given byte array does not represent
* a valid frame: invalid checksum, Length,
* start delimiter, etc.
* @throws ArgumentNullException if {@code packet == null}.
*
* @see com.digi.xbee.api.models.OperatingMode#API
* @see com.digi.xbee.api.models.OperatingMode#API_ESCAPE
*/
public static XBeePacket ParsePacket(byte[] packet, OperatingMode mode)
{
Contract.Requires <ArgumentNullException>(packet != null, "Packet byte array cannot be null.");
Contract.Requires <ArgumentException>(mode == OperatingMode.API || mode == OperatingMode.API_ESCAPE, "Operating mode must be API or API Escaped.");
Contract.Requires <ArgumentException>(packet.Length != 0, "Packet Length should be greater than 0.");
Contract.Requires <ArgumentException>(packet.Length == 1 || packet[0] == (byte)SpecialByte.HEADER_BYTE, "Invalid start delimiter.");
XBeePacketParser parser = new XBeePacketParser();
XBeePacket xbeePacket = parser.ParsePacket(new MemoryStream(packet, 1, packet.Length - 1), mode);
return(xbeePacket);
}
/**
* Class constructor. Instantiates a new {@code DataReader} object for the
* given connection interface using the given XBee operating mode and XBee
* device.
*
* @param connectionInterface Connection interface to read data from.
* @param mode XBee operating mode.
* @param xbeeDevice Reference to the XBee device containing this
* {@code DataReader} object.
*
* @throws ArgumentNullException if {@code connectionInterface == null} or
* {@code mode == null}.
*
* @see IConnectionInterface
* @see com.digi.xbee.api.XBeeDevice
* @see com.digi.xbee.api.models.OperatingMode
*/
public DataReader(IConnectionInterface connectionInterface, OperatingMode mode, XBeeDevice xbeeDevice)
{
if (connectionInterface == null)
throw new ArgumentNullException("Connection interface cannot be null.");
if (mode == null)
throw new ArgumentNullException("Operating mode cannot be null.");
this.connectionInterface = connectionInterface;
this.mode = mode;
this.xbeeDevice = xbeeDevice;
this.logger = LogManager.GetLogger<DataReader>();
parser = new XBeePacketParser();
xbeePacketsQueue = new XBeePacketsQueue();
}
/**
* Parses the given byte array and returns a Generic XBee packet.
*
* @param packet The byte array to parse.
* @param mode The operating mode to parse the packet (API 1 or API 2).
*
* @return The generated Generic XBee Packet.
*
* @throws ArgumentException if {@code mode != OperatingMode.API } and
* if {@code mode != OperatingMode.API_ESCAPE}
* or if {@code packet.Length == 0}.
* @throws InvalidPacketException if the given byte array does not represent
* a valid frame: invalid checksum, Length,
* start delimiter, etc.
* @throws ArgumentNullException if {@code packet == null}.
*
* @see com.digi.xbee.api.models.OperatingMode#API
* @see com.digi.xbee.api.models.OperatingMode#API_ESCAPE
*/
public static XBeePacket ParsePacket(byte[] packet, OperatingMode mode)
{
Contract.Requires<ArgumentNullException>(packet != null, "Packet byte array cannot be null.");
Contract.Requires<ArgumentException>(mode == OperatingMode.API || mode == OperatingMode.API_ESCAPE, "Operating mode must be API or API Escaped.");
Contract.Requires<ArgumentException>(packet.Length != 0, "Packet Length should be greater than 0.");
Contract.Requires<ArgumentException>(packet.Length == 1 || packet[0] == (byte)SpecialByte.HEADER_BYTE, "Invalid start delimiter.");
XBeePacketParser parser = new XBeePacketParser();
XBeePacket xbeePacket = parser.ParsePacket(new MemoryStream(packet, 1, packet.Length - 1), mode);
return xbeePacket;
}