/// <summary>
/// Download the log file and return
/// the Results of the file.
///
/// It is assumed the connection is already made to the ADCP
/// serial port.
/// </summary>
/// <param name="dir">Director to store the log file.</param>
/// <param name="adcp">ADCP serial connection.</param>
/// <returns>Content of the file.</returns>
private string DownloadLog(string dir, AdcpSerialPort adcp)
{
// Result
string result = "";
// Directory to download the file
_isDownloadComplete = false;
bool resultDL = adcp.XModemDownload(dir, MAINT_FILE_NAME, false, true);
adcp.DownloadCompleteEvent += delegate(string fileName, bool goodDownload)
{
// Set the flag when download is complete
_isDownloadComplete = true;
};
// Wait for the download to be completed
int timeout = 100;
while (!_isDownloadComplete)
{
// Sleep to wait
Thread.Sleep(AdcpSerialPort.WAIT_STATE * 2);
// Give a timeout so it does not get stuck
timeout--;
if (timeout < 0)
{
break;
}
}
// Check if the download could be completed
if (resultDL)
{
string filePath = dir + @"\" + MAINT_FILE_NAME;
// If the file exist read in all the data
if (File.Exists(filePath))
{
try
{
result = File.ReadAllText(filePath);
}
catch (Exception e)
{
log.Error(string.Format("Error reading maintence file {0}", filePath), e);
}
// Remove the empty data in the file
// The file has a complete buffer written to it
// The buffer will contain empty data. This
// will find the end of the JSON array.
// Add 1 to include the end of the array character
result = result.Substring(0, result.IndexOf(']') + 1);
try
{
// Write the cleaned up data to the file
File.WriteAllText(filePath, result);
}
catch (Exception e)
{
log.Error(string.Format("Error writing maintence file {0}", filePath), e);
}
}
}
// Wait for the state to change
System.Threading.Thread.Sleep(SerialConnection.WAIT_STATE);
return(result);
}