/// <summary>
/// 序列化
/// </summary>
public static void Serialize(MemoryStream stream, CsvFile csv)
{
// 初始化缓存
if (mSerBuffer == null)
{
mSerBuffer = new byte[1024 * 1024];
}
FileMgr.WriteInt(stream, CsvFileMgr.Version);
FileMgr.WriteString(stream, csv.Name);
FileMgr.WriteString(stream, csv.primaryKey);
// 写入主key类型
LPC.LPCValue.ValueType pkeyType = LPCValue.ValueType.INT;
if (csv.rows.Length > 0)
{
var row = csv.rows[0];
var pkey = row.Query <LPCValue>(csv.primaryKey);
pkeyType = pkey.type;
FileMgr.WriteInt(stream, (int)pkeyType);
}
// 列名
FileMgr.WriteInt(stream, csv.columns.Count);
foreach (var kv in csv.columns)
{
FileMgr.WriteString(stream, kv.Key);
FileMgr.WriteInt(stream, kv.Value);
}
// 行数
FileMgr.WriteInt(stream, csv.rows.Length);
// 写入每行的主key
for (int i = 0; i < csv.rows.Length; i++)
{
var row = csv.rows[i];
if (pkeyType == LPCValue.ValueType.INT)
{
var pkey = row.Query <int>(csv.primaryKey);
FileMgr.WriteInt(stream, pkey);
}
else
{
var pkey = row.Query <string>(csv.primaryKey);
FileMgr.WriteString(stream, pkey);
}
}
// 写入行长度和内容
for (int i = 0; i < csv.rows.Length; i++)
{
var row = csv.rows[i];
int len = 0;
for (var idx = 0; idx < csv.columns.Count; idx++)
{
len += LPCValue.SaveToBuffer(mSerBuffer, len, row.properties[idx]);
}
FileMgr.WriteInt(stream, len);
stream.Write(mSerBuffer, 0, len);
}
// 释放
mSerBuffer = null;
}