/// <summary>
/// 以最简单的方式系列化为Bytes 的格式。
/// </summary>
/// <param name="dtData"></param>
/// <returns></returns>
public byte[] Serializer(DataTable dtData)
{
List <ColumnInfo> cols = new List <ColumnInfo>();
foreach (DataColumn col in dtData.Columns)
{
cols.Add(new ColumnInfo(col.ColumnName, col.DataType));
}
TextTableSchema schema = new TextTableSchema();
string flag = schema.ColumnsToString(cols);
string header = buildTableHeader(cols);
DataRow[] drs = dtData.Select();
using (MemoryStream stream = new MemoryStream()) {
flag = string.Format(FLAG_WORD, DATA_TABLE) + ";" + string.Format(SE_COLUMNS, flag);
byte[] bufferflag = _Encoding.GetBytes(flag + "\n");
stream.Write(bufferflag, 0, bufferflag.Length);
byte[] buffer = _Encoding.GetBytes(header + "\n");
stream.Write(buffer, 0, buffer.Length);
foreach (DataRow dr in drs)
{
string line = buildDataRow(cols, dr);
buffer = _Encoding.GetBytes(line + "\n");
stream.Write(buffer, 0, buffer.Length);
}
//压缩
byte[] bytes_c = MB.Util.Compression.Instance.Zip(stream.ToArray());
return(bytes_c);
return(stream.ToArray());
}
}
/// <summary>
/// 以最简单的方式系列化为Bytes 的格式。
/// </summary>
/// <param name="dataReader"></param>
/// <returns></returns>
public byte[] Serializer(IDataReader dataReader)
{
//ColumnName
DataTable headerReader = dataReader.GetSchemaTable();
//构建表头：
DataRow[] heads = headerReader.Select();
List <ColumnInfo> cols = new List <ColumnInfo>();
foreach (DataRow dr in heads)
{
cols.Add(new ColumnInfo(dr["ColumnName"].ToString(), (Type)dr["DataType"]));
}
TextTableSchema schema = new TextTableSchema();
string flag = schema.ColumnsToString(cols);
string header = buildTableHeader(cols);
using (MemoryStream stream = new MemoryStream()) {
flag = string.Format(FLAG_WORD, DATA_TABLE) + ";" + string.Format(SE_COLUMNS, flag);
byte[] bufferflag = _Encoding.GetBytes(flag + "\n");
stream.Write(bufferflag, 0, bufferflag.Length);
byte[] buffer = _Encoding.GetBytes(header + "\n");
stream.Write(buffer, 0, buffer.Length);
while (dataReader.Read())
{
string line = buildDataRow(cols, dataReader);
buffer = _Encoding.GetBytes(line + "\n");
stream.Write(buffer, 0, buffer.Length);
}
dataReader.Close();
//压缩
byte[] bytes_c = MB.Util.Compression.Instance.Zip(stream.ToArray());
return(bytes_c);
}
}
public MultiSetTableValue(string colstring, List <string> lstDataRow)
{
schema = new TextTableSchema();
_LstDataRows = lstDataRow;
_Cols = schema.StringToColumns(colstring);
}
/// <summary>
/// 以最简单的方式系列化为Bytes 的格式。
/// </summary>
/// <param name="datas"></param>
/// <returns></returns>
public DataTable DeSerializer(byte[] datas)
{
TextTableSchema schema = new TextTableSchema();
byte[] bytes_c = MB.Util.Compression.Instance.UnZip(datas);
string dstr = _Encoding.GetString(bytes_c);
string colString;
string header;
List <string> dataRows = new List <string>();
using (StringReader reader = new StringReader(dstr)) {
//先取Flag 第一行的标志行 为构造DataTable
string[] flag = reader.ReadLine().Split(';');
if (flag.Length < 2)
{
throw new MB.Util.APPException("反系列化时出错,不是有效的系列化文件", MB.Util.APPMessageType.SysErrInfo);
}
colString = flag[1].Substring(SE_COLUMNS.Length - 3, flag[1].Length - SE_COLUMNS.Length + 3);
//先读取表头
header = reader.ReadLine();
string[] colFields = System.Text.RegularExpressions.Regex.Split(header, "\t");
while (true)
{
string dataRow = reader.ReadLine();
if (string.IsNullOrEmpty(dataRow))
{
break;
}
dataRows.Add(dataRow);
}
}
int all = computeCount(dataRows.Count);
var cols = schema.StringToColumns(colString);
DataTable dt = schema.CreateDataTable(cols);
List <MultiSetTableValue> lst = new List <MultiSetTableValue>();
for (int i = 0; i < all; i++)
{
int l = (i + 1) * SINGLE_L > dataRows.Count ? dataRows.Count - i * SINGLE_L : SINGLE_L;
List <string> childLst = dataRows.GetRange(i * SINGLE_L, l);
lst.Add(new MultiSetTableValue(colString, childLst));
Thread t = new Thread(new ThreadStart(lst[i].SetValue));
t.Priority = ThreadPriority.Highest;
t.Start();
}
ArrayList lstData = new ArrayList();
for (int i = 0; i < lst.Count; i++)
{
if (lst[i].Done) //保证按系列化前的顺序加载到集合中。
{
dt.Merge(lst[i].CreateDataTable);
}
else
{
i--;
Thread.Sleep(100);
}
}
return(dt);
}
