public void readFile(string fileName, ref WeatherLogger.FormMain.Weather[] w)
{
int index = 0;
string strLine;
//string[] strData = new string[];
if (File.Exists(fileName))
{
StreamReader objFile = new StreamReader(fileName);
while ((strLine = objFile.ReadLine()) != null)
{
string[] strData = strLine.Split(" ".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
w[index].time = new XDate(DateTime.FromBinary(Convert.ToInt64(strData[0])));
w[index].humidity = (float)Convert.ToDouble(strData[1]);
w[index].pressure = (float)Convert.ToDouble(strData[2]);
w[index].temp = (float)Convert.ToDouble(strData[3]);
if (++index >= w.Length) break;
}
while (index < w.Length)
{
w[index++].time = new XDate(1970, 1, 1);
}
objFile.Close();
objFile.Dispose();
}
}
public void writeFile(WeatherLogger.FormMain.Weather[] w, int wIndex)
{
bool overWrite = false;
int i;
string fileName; // = DateTime.Now.ToString("ddMMyyyy") + ".wlg";
string strLineContent, strTime;
XDate writeLineTime = new XDate();
if(!(Directory.Exists("log"))) Directory.CreateDirectory("log");
// Set wIndex to a very first valid data
for (i = 0; i < w.Length; i++)
{
if(++wIndex >= w.Length) wIndex = 0;
if (w[wIndex].time != new XDate(1970, 1, 1)) break;
}
// Set Max time as the next day
XDate writeLineMaxTime = new XDate(w[wIndex].time.DateTime.Year, w[wIndex].time.DateTime.Month,
(w[wIndex].time.DateTime.Day)).DateTime.AddDays(1);
// Write as many files required for each date
i = 0;
while (i < w.Length)
{
// Create a file name
fileName = @"log\" + w[wIndex].time.DateTime.ToString("ddMMyyyy") + ".wlg";
if (File.Exists(fileName)) overWrite = true; // File Exists
else overWrite = false;
if (overWrite) File.Move(fileName, fileName + ".~orig"); // Rename existing file
StreamWriter objFile = new StreamWriter(fileName); // New file
if (overWrite)
{
// Read the existing file and write the data to the new file
StreamReader objReadFile = new StreamReader(fileName + ".~orig");
while ((strLineContent = objReadFile.ReadLine()) != null)
{
strLineContent = strLineContent.Trim();
strTime = strLineContent.Split(" ".ToCharArray())[0];
writeLineTime = DateTime.FromBinary(Convert.ToInt64(strTime));
if (writeLineTime >= w[wIndex].time.DateTime) break;
objFile.WriteLine(strLineContent);
}
objReadFile.Close();
objReadFile.Dispose();
File.Delete(fileName + ".~orig");
}
// Writes new data to the file
while (i < w.Length)
{
if (w[wIndex].time >= writeLineMaxTime)
{
writeLineMaxTime = writeLineMaxTime.DateTime.AddDays(1); // Write next date datas to a new file
break;
}
if (w[wIndex].time != new XDate(1970, 1, 1))
{
strLineContent = w[wIndex].time.DateTime.ToBinary() + " " + w[wIndex].humidity.ToString()
+ " " + w[wIndex].pressure.ToString() + " " + w[wIndex].temp.ToString();
objFile.WriteLine(strLineContent);
}
if (++wIndex >= w.Length) wIndex = 0;
i++;
}
objFile.Close();
objFile.Dispose();
}
}
