/// <summary>
/// 判断文件是否被占用
/// </summary>
/// <param name="structid">结构物ID</param>
/// <param name="file">文件路径</param>
/// <param name="pr">返回错误信息</param>
/// <returns>true-被占用</returns>
private static bool IsFileOccupation(int structid, string file, out ParserReturn pr)
{
pr = null;
bool flag = false;
try
{
using (var fs = new FileStream(file, FileMode.Open, FileAccess.Read))
{
fs.Close();
}
}
catch (Exception) // 文件正在写入时不处理
{
flag = true;
pr = new ParserReturn
{
Error = "Writing",
Struct = structid,
File = file,
Time = DateTime.Now,
Affects = 0,
mod = 0,
ch = 0,
Period = 0,
freq = 0
};
}
return(flag);
}
/// <summary>
/// 单文件格式振动数据的解析和计算
/// </summary>
public static ParserReturn Parse(int structid, string file)
{
ParserReturn pr = null;
if (IsFileOccupation(structid, file, out pr))
{
return(pr);
}
try
{
using (var fs = new FileStream(file, FileMode.Open, FileAccess.Read))
{
var br = new BinaryReader(fs);
ushort T = br.ReadUInt16();
ushort L = br.ReadUInt16();
TriggerSaveFileTitle title =
(TriggerSaveFileTitle)
StructConvert.BytesToStruct(br.ReadBytes(L), typeof(TriggerSaveFileTitle));
var ch = title.CHNum;
var mod = title.DeviceID;
var fre = title.SampleFreq;
var time = new DateTime(2000 + title.year, title.mon, title.day, title.hour, title.min, title.sec);
var cnt = title.L_Date / 4;
var org = new float[cnt];
for (var i = 0; i < cnt; i++)
{
org[i] = br.ReadSingle();
}
fs.Close();
#if DEBUG
//-- 生成数据文件
if (!Directory.Exists("debug"))
{
Directory.CreateDirectory("debug");
}
var debugfile = Path.Combine("debug", Path.GetFileNameWithoutExtension(file) + DateTime.Now.ToString("HHmmss") + ".txt");
using (var fsw = new FileStream(debugfile, FileMode.Create, FileAccess.ReadWrite))
{
StreamWriter sw = new StreamWriter(fsw);
for (var i = 0; i < cnt; i++)
{
sw.WriteLine(org[i]);
}
fsw.Close();
}
#endif
string err;
var affects = ACCSensor.CalcAndSave(structid, mod, ch, fre, time, org, out err);
pr = new ParserReturn
{
Error = err,
Struct = structid,
File = file,
Time = time,
Affects = affects,
mod = mod,
ch = ch,
Period = (int)(cnt / fre),
freq = (int)fre
};
}
}
catch (Exception ex)
{
pr = new ParserReturn
{
Error = ex.Message,
Struct = structid,
File = file,
Time = DateTime.Now,
Affects = 0,
mod = 0,
ch = 0,
Period = 0,
freq = 0
};
}
return(pr);
}