private void DecodePacket(byte[] resPacket, out PDBErrorCode retVal, DataTable resultTab)
{
ProtoHeader proHdr = new ProtoHeader(resPacket);
retVal = (PDBErrorCode)proHdr.GetReturnVal();
resultTab.Clear();
resultTab.Columns.Clear();
int offset = ProtoHeader.kHeadLen;
uint fieldCnt = proHdr.GetFieldCnt();
if (retVal != PDBErrorCode.PdbE_OK)
{
return;
}
List <object> headList = GetRecord(fieldCnt, resPacket, ref offset);
foreach (object obj in headList)
{
if (obj.GetType() == typeof(System.String))
{
string str = (string)obj;
string[] strArr = str.Split(new char[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
if (strArr.Count() != 2)
{
throw new PDBException(PDBErrorCode.PdbE_PACKET_ERROR, "报文错误：非法的表头");
}
DataColumn colInfo = null;
switch (strArr[0])
{
case "bool":
colInfo = new DataColumn(strArr[1], typeof(bool));
break;
case "tinyint":
colInfo = new DataColumn(strArr[1], typeof(sbyte));
break;
case "smallint":
colInfo = new DataColumn(strArr[1], typeof(short));
break;
case "int":
colInfo = new DataColumn(strArr[1], typeof(int));
break;
case "bigint":
colInfo = new DataColumn(strArr[1], typeof(long));
break;
case "datetime":
colInfo = new DataColumn(strArr[1], typeof(DateTime));
break;
case "float":
colInfo = new DataColumn(strArr[1], typeof(float));
break;
case "double":
colInfo = new DataColumn(strArr[1], typeof(double));
break;
case "string":
colInfo = new DataColumn(strArr[1], typeof(string));
break;
case "blob":
colInfo = new DataColumn(strArr[1], typeof(byte[]));
break;
default:
throw new PDBException(PDBErrorCode.PdbE_PACKET_ERROR, "报文错误：非法的表头");
}
resultTab.Columns.Add(colInfo);
}
else
{
throw new PDBException(PDBErrorCode.PdbE_PACKET_ERROR, "报文错误：非法的表头");
}
}
while (offset < resPacket.Count())
{
DataRow dataRow = resultTab.NewRow();
List <object> dataList = GetRecord(fieldCnt, resPacket, ref offset);
if (dataList.Count() != headList.Count())
{
throw new PDBException(PDBErrorCode.PdbE_PACKET_ERROR);
}
for (int i = 0; i < dataList.Count(); i++)
{
if (dataList[i] != null)
{
dataRow[i] = dataList[i];
}
else
{
dataRow[i] = DBNull.Value;
}
}
resultTab.Rows.Add(dataRow);
}
}
