/// <summary>
/// Reserved for internal use.
/// </summary>
internal static object GetData(byte[] buff, ref int pos, ActionType action, out int count, out int index, ref DataType type, ref int cachePosition)
{
count = 0;
index = 0;
object value = null;
if (pos == buff.Length)
{
pos = -1;
return(null);
}
bool knownType = type != DataType.None;
if (!knownType)
{
type = (DataType)buff[pos++];
}
if (type == DataType.None)
{
return(value);
}
if (pos == buff.Length)
{
pos = -1;
return(null);
}
int size = buff.Length - pos;
if (type == DataType.Array ||
type == DataType.Structure)
{
count = GXCommon.GetObjectCount(buff, ref pos);
if (action == ActionType.Count)
{
return(value); //Don't go further. Only object's count is resolved.
}
if (cachePosition > pos)
{
pos = cachePosition;
}
size = buff.Length - pos;
if (count != 0 && size < 1)
{
pos = -1;
return(null);
}
List <object> arr = new List <object>(count);
for (index = 0; index != count; ++index)
{
DataType itemType = DataType.None;
int colCount, colIndex;
int tmpPos = 0;
object tmp = GetData(buff, ref pos, ActionType.None, out colCount, out colIndex, ref itemType, ref tmpPos);
if (colCount == colIndex && pos != -1)
{
arr.Add(tmp);
}
if (pos == -1)
{
break;
}
else
{
cachePosition = pos;
}
}
if (index == count && pos != -1)
{
cachePosition = buff.Length;
}
value = arr.ToArray();
}
else if (type == DataType.Boolean)
{
value = buff[pos++] != 0;
}
else if (type == DataType.BitString)
{
int oldPos = pos;
int cnt = GetObjectCount(buff, ref pos);
size -= pos - oldPos;
double t = cnt;
t /= 8;
if (cnt % 8 != 0)
{
++t;
}
int byteCnt = (int)Math.Floor(t);
if (size < byteCnt) //If there is not enough data available.
{
pos = -1;
return(null);
}
string str = "";
while (cnt > 0)
{
str += ToBitString(buff[pos++], cnt);
cnt -= 8;
}
value = str;
}
else if (type == DataType.Int32)
{
if (size < 4) //If there is not enough data available.
{
pos = -1;
return(null);
}
value = GXCommon.GetInt32(buff, ref pos);
}
else if (type == DataType.UInt32)
{
if (size < 4) //If there is not enough data available.
{
pos = -1;
return(null);
}
value = GXCommon.GetUInt32(buff, ref pos);
}
else if (type == DataType.StringUTF8)
{
int len = 0;
if (knownType)
{
len = buff.Length;
}
else
{
len = GXCommon.GetObjectCount(buff, ref pos);
if (buff.Length - pos < len) //If there is not enough data available.
{
pos = -1;
return(null);
}
}
if (len > 0)
{
value = ASCIIEncoding.UTF8.GetString(GXCommon.RawData(buff, ref pos, len));
}
else
{
value = "";
}
}
else if (type == DataType.String)
{
int len = 0;
if (knownType)
{
len = buff.Length;
}
else
{
len = GXCommon.GetObjectCount(buff, ref pos);
if (buff.Length - pos < len) //If there is not enough data available.
{
pos = -1;
return(null);
}
}
if (len > 0)
{
bool octetString = false;
if (knownType)
{
//Check that this is not octet string.
foreach (byte it in buff)
{
if (it != 0 && it < 0x20)
{
octetString = true;
break;
}
}
}
if (octetString)
{
StringBuilder sb = new StringBuilder(3 * buff.Length);
foreach (byte it in buff)
{
sb.Append(it);
sb.Append('.');
}
sb.Remove(sb.Length - 1, 1);
value = sb.ToString();
}
else
{
//Remove '\0' from string if used.
while (len > 0 && buff[len - 1] == 0)
{
--len;
}
value = ASCIIEncoding.ASCII.GetString(GXCommon.RawData(buff, ref pos, len));
}
}
}
//Example Logical name is octet string, so do not change to string...
else if (type == DataType.OctetString)
{
int len = 0;
if (knownType)
{
len = buff.Length;
}
else
{
len = GXCommon.GetObjectCount(buff, ref pos);
if (buff.Length - pos < len) //If there is not enough data available.
{
pos = -1;
return(null);
}
}
value = GXCommon.RawData(buff, ref pos, len);
}
else if (type == DataType.BinaryCodedDesimal)
{
int len;
if (knownType)
{
len = buff.Length;
}
else
{
len = GXCommon.GetObjectCount(buff, ref pos);
}
StringBuilder bcd = new StringBuilder(len * 2);
for (int a = 0; a != len; ++a)
{
int idHigh = buff[pos] >> 4;
int idLow = buff[pos] & 0x0F;
++pos;
bcd.Append(string.Format("{0}{1}", idHigh, idLow));
}
return(bcd.ToString());
}
else if (type == DataType.Int8)
{
value = (sbyte)buff[pos++];
}
else if (type == DataType.Int16)
{
if (size < 2) //If there is not enough data available.
{
pos = -1;
return(null);
}
value = GXCommon.GetInt16(buff, ref pos);
}
else if (type == DataType.UInt8)
{
value = buff[pos++];
}
else if (type == DataType.UInt16)
{
if (size < 2) //If there is not enough data available.
{
pos = -1;
return(null);
}
value = GXCommon.GetUInt16(buff, ref pos);
}
else if (type == DataType.CompactArray)
{
throw new Exception("Invalid data type.");
}
else if (type == DataType.Int64)
{
if (size < 8) //If there is not enough data available.
{
pos = -1;
return(null);
}
value = GXCommon.GetInt64(buff, ref pos);
}
else if (type == DataType.UInt64)
{
if (size < 8) //If there is not enough data available.
{
pos = -1;
return(null);
}
value = GXCommon.GetUInt64(buff, ref pos);
}
else if (type == DataType.Enum)
{
if (size < 1) //If there is not enough data available.
{
pos = -1;
return(null);
}
value = buff[pos++];
}
else if (type == DataType.Float32)
{
if (size < 4) //If there is not enough data available.
{
pos = -1;
return(null);
}
value = GXCommon.ToFloat(buff, ref pos);
}
else if (type == DataType.Float64)
{
if (size < 8) //If there is not enough data available.
{
pos = -1;
return(null);
}
value = GXCommon.ToDouble(buff, ref pos);
}
else if (type == DataType.DateTime)
{
if (size < 12) //If there is not enough data available.
{
pos = -1;
return(null);
}
GXDateTime dt = new GXDateTime();
//Get year.
int year = GXCommon.GetUInt16(buff, ref pos);
if (year == 0xFFFF || year == 0)
{
year = DateTime.MinValue.Year;
dt.Skip |= DateTimeSkips.Year;
}
//Get month
int month = buff[pos++];
if (month == 0 || month == 0xFF || month == 0xFE || month == 0xFD)
{
month = 1;
dt.Skip |= DateTimeSkips.Month;
}
int day = buff[pos++];
if (day < 1 || day == 0xFF)
{
day = 1;
dt.Skip |= DateTimeSkips.Day;
}
else if (day == 0xFD || day == 0xFE)
{
day = DateTime.DaysInMonth(year, month) + (sbyte)day + 2;
}
//Skip week day
++pos;
//Get time.
int hours = buff[pos++];
if (hours == 0xFF)
{
hours = 0;
dt.Skip |= DateTimeSkips.Hour;
}
int minutes = buff[pos++];
if (minutes == 0xFF)
{
minutes = 0;
dt.Skip |= DateTimeSkips.Minute;
}
int seconds = buff[pos++];
if (seconds == 0xFF)
{
seconds = 0;
dt.Skip |= DateTimeSkips.Second;
}
int milliseconds = buff[pos++];
if (milliseconds != 0xFF && milliseconds != 0)
{
milliseconds *= 10;
}
else
{
milliseconds = 0;
dt.Skip |= DateTimeSkips.Ms;
}
int deviation = GXCommon.GetInt16(buff, ref pos);
dt.Status = (ClockStatus)buff[pos++];
if ((deviation & 0xFFFF) != 0x8000 && year != 1)
{
dt.Value = DateTime.SpecifyKind(new DateTime(year, month, day, hours, minutes, seconds, milliseconds), DateTimeKind.Utc);
dt.Value = dt.Value.AddMinutes(deviation);
dt.Value = dt.Value.ToLocalTime();
}
else //Use current time if deviation is not defined.
{
dt.Value = new DateTime(year, month, day, hours, minutes, seconds, milliseconds);
}
value = dt;
}
else if (type == DataType.Date)
{
if (size < 5) //If there is not enough data available.
{
pos = 0xFF;
return(null);
}
//Get year.
int year = GXCommon.GetUInt16(buff, ref pos);
//IskraEmeco meter returns bytes in wrong order.
if (year != 0xFFFF && year > 2100)
{
pos -= 2;
year = buff[pos++] | buff[pos++] << 8;
//If Actaris SL 7000 and ACE 6000 returns invalid date.
if (year == 0x5C13)
{
year = -1;
}
}
//Get month
int month = buff[pos++];
int day = buff[pos++];
//Skip week day
int DayOfWeek = buff[pos++];
//If day of week are not used.
GXDateTime dt = new GXDateTime(year, month, day, -1, -1, 1, -1);
return(dt);
}
else if (type == DataType.Time)
{
if (size < 4) //If there is not enough data available.
{
pos = -1;
return(null);
}
//Get time.
int hours = buff[pos++];
int minutes = buff[pos++];
int seconds = buff[pos++];
int milliseconds = buff[pos++];
GXDateTime dt = new GXDateTime(-1, -1, -1, hours, minutes, seconds, milliseconds);
value = dt;
}
else
{
throw new Exception("Invalid data type.");
}
return(value);
}
/// <summary>
/// Reserved for internal use.
/// </summary>
/// <param name="buff"></param>
/// <param name="type"></param>
/// <param name="value"></param>
public static void SetData(List <byte> buff, DataType type, object value)
{
bool reverse = true;
List <byte> tmp = new List <byte>();
//If byte array is added do not add type.
if ((type == DataType.Array || type == DataType.Structure) && value is byte[])
{
buff.AddRange((byte[])value);
return;
}
if (type == DataType.None)
{
value = null;
}
else if (type == DataType.Boolean)
{
value = (byte)(Convert.ToBoolean(value) ? 1 : 0);
}
else if (type == DataType.BitString)
{
byte val = 0;
int index = 0;
if (value is string)
{
string str = value as string;
SetObjectCount(str.Length, tmp);
foreach (char it in str)
{
if (it == '1')
{
val |= (byte)(1 << index++);
}
else if (it == '0')
{
index++;
}
else
{
throw new ArgumentException("Not a bit string.");
}
if (index == 8)
{
index = 0;
tmp.Add(val);
val = 0;
}
}
if (index != 0)
{
tmp.Add(val);
}
value = tmp.ToArray();
reverse = false;
}
else if (value is byte[])
{
byte[] arr = value as byte[];
SetObjectCount(arr.Length, tmp);
tmp.AddRange(arr);
value = tmp.ToArray();
reverse = false;
}
else if (value is bool[])
{
bool[] arr = value as bool[];
SetObjectCount(arr.Length, tmp);
foreach (bool it in arr)
{
if (it)
{
val |= (byte)(1 << index++);
}
else
{
++index;
}
if (index == 8)
{
index = 0;
tmp.Add(val);
val = 0;
}
}
if (index != 0)
{
tmp.Add(val);
}
value = tmp.ToArray();
reverse = false;
}
else if (value == null)
{
tmp.Add(0);
value = tmp.ToArray();
reverse = false;
}
else
{
throw new Exception("BitString must give as string.");
}
}
else if (type == DataType.Int32)
{
value = Convert.ToInt32(value);
}
else if (type == DataType.UInt32)
{
value = Convert.ToUInt32(value);
}
else if (type == DataType.String)
{
if (value != null)
{
string str = value.ToString();
SetObjectCount(str.Length, tmp);
tmp.AddRange(ASCIIEncoding.ASCII.GetBytes(str));
}
else
{
SetObjectCount(0, tmp);
}
value = tmp.ToArray();
reverse = false;
}
else if (type == DataType.StringUTF8)
{
if (value != null)
{
string str = value.ToString();
byte[] tmp1 = ASCIIEncoding.UTF8.GetBytes(str);
SetObjectCount(tmp1.Length, tmp);
tmp.AddRange(tmp1);
}
else
{
SetObjectCount(0, tmp);
}
value = tmp.ToArray();
reverse = false;
}
else if (type == DataType.Array || type == DataType.Structure)
{
if (value != null)
{
Array arr = (Array)value;
SetObjectCount(arr.Length, tmp);
foreach (object it in arr)
{
SetData(tmp, GetValueType(it), it);
}
}
else
{
SetObjectCount(0, tmp);
}
value = tmp.ToArray();
reverse = false;
}
else if (type == DataType.OctetString)
{
reverse = false;
if (value is string)
{
if ((value as string) == "")
{
SetObjectCount(0, tmp);
value = tmp.ToArray();
}
else
{
string[] items = (value as string).Split('.');
tmp.Clear();
SetObjectCount(items.Length, tmp);
foreach (string it in items)
{
tmp.Add(byte.Parse(it));
}
value = tmp.ToArray();
}
}
else if (value == null)
{
SetObjectCount(0, tmp);
value = tmp.ToArray();
}
else if (value is byte[])
{
SetObjectCount((value as byte[]).Length, tmp);
tmp.AddRange(value as byte[]);
value = tmp.ToArray();
}
else if (value is GXDateTime)
{
value = GetDateTime(value as GXDateTime);
}
else if (value is DateTime)
{
value = GetDateTime(new GXDateTime(Convert.ToDateTime(value)));
}
else
{
value = Convert.ToString(value);
}
}
else if (type == DataType.BinaryCodedDesimal)
{
if (!(value is string))
{
throw new Exception("BCD value must give as string.");
}
string str = value.ToString().Trim();
int len = str.Length;
if (len % 2 != 0)
{
str = "0" + str;
++len;
}
len /= 2;
List <byte> val = new List <byte>(len);
val.Add((byte)(len));
for (int pos = 0; pos != len; ++pos)
{
byte ch1 = byte.Parse(str.Substring(2 * pos, 1));
byte ch2 = byte.Parse(str.Substring(2 * pos + 1, 1));
val.Add((byte)(ch1 << 4 | ch2));
}
reverse = false;
value = val.ToArray();
}
else if (type == DataType.Int8)
{
value = Convert.ToSByte(value);
}
else if (type == DataType.Int16)
{
value = (short)Convert.ToInt32(value);
}
else if (type == DataType.UInt8)
{
value = Convert.ToByte(value);
}
else if (type == DataType.UInt16)
{
value = Convert.ToUInt16(value);
}
else if (type == DataType.CompactArray)
{
throw new Exception("Invalid data type.");
}
else if (type == DataType.Int64)
{
value = Convert.ToInt64(value);
}
else if (type == DataType.UInt64)
{
value = Convert.ToUInt64(value);
}
else if (type == DataType.Enum)
{
value = Convert.ToByte(value);
}
else if (type == DataType.Float32)
{
value = Convert.ToSingle(value);
}
else if (type == DataType.Float64)
{
value = Convert.ToDouble(value);
}
else if (type == DataType.DateTime)
{
type = DataType.OctetString;
if (value is GXDateTime)
{
value = GetDateTime(value as GXDateTime);
}
else
{
value = GetDateTime(new GXDateTime(Convert.ToDateTime(value)));
}
reverse = false;
}
else if (type == DataType.Date)
{
GXDateTime dt;
if (value is GXDateTime)
{
dt = value as GXDateTime;
}
else if (value is DateTime)
{
dt = new GXDateTime((DateTime)value);
}
else
{
throw new Exception("Invalid date format.");
}
type = DataType.OctetString;
//Add size
tmp.Add(5);
//Add year.
if ((dt.Skip & DateTimeSkips.Year) != 0)
{
GXCommon.SetUInt16(0xFFFF, tmp);
}
else
{
GXCommon.SetUInt16((ushort)dt.Value.Year, tmp);
}
//Add month.
if (dt.DaylightSavingsBegin)
{
tmp.Add(0xFE);
}
else if (dt.DaylightSavingsEnd)
{
tmp.Add(0xFD);
}
else if ((dt.Skip & DateTimeSkips.Month) != 0)
{
tmp.Add(0xFF);
}
else
{
tmp.Add((byte)dt.Value.Month);
}
if ((dt.Skip & DateTimeSkips.Day) != 0)
{
tmp.Add(0xFF);
}
else
{
tmp.Add((byte)dt.Value.Day);
}
//Week day is not spesified.
tmp.Add(0xFF);
value = tmp.ToArray();
reverse = false;
}
else if (type == DataType.Time)
{
GXDateTime dt;
if (value is GXDateTime)
{
dt = value as GXDateTime;
}
else if (value is DateTime)
{
dt = new GXDateTime((DateTime)value);
}
else
{
throw new Exception("Invalid date format.");
}
type = DataType.OctetString;
//Add size
tmp.Add(4);
//Add time.
if ((dt.Skip & DateTimeSkips.Hour) != 0)
{
tmp.Add(0xFF);
}
else
{
tmp.Add((byte)dt.Value.Hour);
}
if ((dt.Skip & DateTimeSkips.Minute) != 0)
{
tmp.Add(0xFF);
}
else
{
tmp.Add((byte)dt.Value.Minute);
}
if ((dt.Skip & DateTimeSkips.Second) != 0)
{
tmp.Add(0xFF);
}
else
{
tmp.Add((byte)dt.Value.Second);
}
tmp.Add((byte)0xFF); //Hundredths of second is not used.
value = tmp.ToArray();
reverse = false;
}
else
{
throw new Exception("Invalid data type.");
}
buff.Add((byte)type);
if (value != null)
{
byte[] data = Gurux.Shared.GXCommon.GetAsByteArray(value);
if (reverse)
{
Array.Reverse(data);
}
buff.AddRange(data);
}
}
static byte[] GetDateTime(GXDateTime dt)
{
if (dt.Value == DateTime.MinValue)
{
dt.Value = DateTime.SpecifyKind(new DateTime(2000, 1, 1).Date, DateTimeKind.Utc);
}
else if (dt.Value == DateTime.MaxValue)
{
dt.Value = DateTime.SpecifyKind(DateTime.Now.AddYears(1).Date, DateTimeKind.Utc);
}
DateTime tm;
//If used normal time.
if ((dt.Skip & DateTimeSkips.Devitation) == 0)
{
tm = dt.Value;
}
else //If devitation is skipped.
{
//If value is given as UTC time.
if (TimeZone.CurrentTimeZone.GetUtcOffset(dt.Value).TotalMinutes == 0)
{
tm = dt.Value;
}
else
{
tm = dt.Value.ToUniversalTime();
}
}
List <byte> tmp = new List <byte>();
//Add size
tmp.Add(12);
if ((dt.Skip & DateTimeSkips.Year) == 0)
{
GXCommon.SetUInt16((ushort)tm.Year, tmp);
}
else
{
GXCommon.SetUInt16((ushort)0xFFFF, tmp);
}
if ((dt.Skip & DateTimeSkips.Month) == 0)
{
if (dt.DaylightSavingsBegin)
{
tmp.Add(0xFE);
}
else if (dt.DaylightSavingsEnd)
{
tmp.Add(0xFD);
}
else
{
tmp.Add((byte)tm.Month);
}
}
else
{
tmp.Add(0xFF);
}
if ((dt.Skip & DateTimeSkips.Day) == 0)
{
tmp.Add((byte)tm.Day);
}
else
{
tmp.Add(0xFF);
}
//Week day is not spesified.
//Standard defines. tmp.Add(0xFF);
tmp.Add(0xFF);
//Add time.
if ((dt.Skip & DateTimeSkips.Hour) == 0)
{
tmp.Add((byte)tm.Hour);
}
else
{
tmp.Add(0xFF);
}
if ((dt.Skip & DateTimeSkips.Minute) == 0)
{
tmp.Add((byte)tm.Minute);
}
else
{
tmp.Add(0xFF);
}
if ((dt.Skip & DateTimeSkips.Second) == 0)
{
tmp.Add((byte)tm.Second);
}
else
{
tmp.Add(0xFF);
}
if ((dt.Skip & DateTimeSkips.Ms) == 0)
{
tmp.Add((byte)(tm.Millisecond / 10));
}
else
{
tmp.Add((byte)0xFF); //Hundredths of second is not used.
}
//Add deviation.
if ((dt.Skip & DateTimeSkips.Devitation) == 0)
{
short devitation = (short)TimeZone.CurrentTimeZone.GetUtcOffset(dt.Value).TotalMinutes;
GXCommon.SetInt16(devitation, tmp);
}
else //deviation not used.
{
tmp.Add((byte)0x00);
tmp.Add((byte)0x00);
}
//Add clock_status
tmp.Add((byte)dt.Status);
return(tmp.ToArray());
}