/// <summary>
/// Read in EarLab .metadata parameter file and store appropriate values to local variables
/// </summary>
private void ReadMetaDataFile(string fileName)
{
DataSet xmlDataSet = ReaderWriterXMLMetadata.Read(fileName);
if (xmlDataSet != null)
{
this.minimumSample = (double)xmlDataSet.Tables["Parameters"].Rows[0]["MinValue"];
this.maximumSample = (double)xmlDataSet.Tables["Parameters"].Rows[0]["MaxValue"];
this.sampleRate = (double)xmlDataSet.Tables["Parameters"].Rows[0]["SampleRate_Hz"];
this.xStart = (double)xmlDataSet.Tables["Parameters"].Rows[0]["LagMin_uS"];
this.xEnd = (double)xmlDataSet.Tables["Parameters"].Rows[0]["LagMax_uS"];
this.xDimension = (long)xmlDataSet.Tables["Dimension"].Select("Name = 'Lag'")[0]["Value"];
this.yDimension = (long)xmlDataSet.Tables["Dimension"].Select("Name = 'Frequency'")[0]["Value"];
this.zDimension = (long)xmlDataSet.Tables["Dimension"].Select("Name = 'Time'")[0]["Value"];
}
else
{
throw new Exception("XMLMetadataReaderWriter.Read(fileName): Incorrect EarLab .metadata file format.");
}
this.yStart = this.zStart = 0;
this.yEnd = yDimension - 1;
this.zEnd = zDimension - 1;
}
/// <summary>
/// Read in EarLab .metadata parameter file and store appropriate values to local variables
/// </summary>
private void ReadMetaDataFile(string fileName)
{
DataSet xmlDataSet = ReaderWriterXMLMetadata.Read(fileName);
if (xmlDataSet != null)
{
this.minimumSample = (double)xmlDataSet.Tables["Parameters"].Rows[0]["MinValue"];
this.maximumSample = (double)xmlDataSet.Tables["Parameters"].Rows[0]["MaxValue"];
this.sampleRate = (double)xmlDataSet.Tables["Parameters"].Rows[0]["SampleRate_Hz"];
this.timeDimension = (long)xmlDataSet.Tables["Dimension"].Select("Name = 'Time'")[0]["Value"];
this.freqDimension = (long)xmlDataSet.Tables["Dimension"].Select("Name = 'Frequency'")[0]["Value"];
long fileLength;
try
{
fileLength = new FileInfo(fileName.Replace(".metadata", ".binary")).Length;
}
catch
{
throw new Exception("ReaderWriterFrequencyTime.ReadMetaDataFile(): EarLab Data (.binary) file not found.");
}
if (this.timeDimension * this.freqDimension * FLOAT_BYTES != fileLength)
{
throw new Exception("ReaderWriterFrequencyTime.ReadMetaDataFile(): Incorrect EarLab Metadata (.metadata) file vs Data (.binary) file.");
}
}
else
{
throw new Exception("XMLMetadataReaderWriter.Read(fileName): Incorrect EarLab .metadata file format.");
}
}
public static EarLabBinaryFileType GetBinaryFileType(string fileName)
{
DataSet xmlDataSet = ReaderWriterXMLMetadata.Read(fileName);
if (xmlDataSet == null)
{
return(EarLabBinaryFileType.Unknown);
}
if (xmlDataSet.Tables["Parameters"].Rows[0]["FileType"].ToString() == "Time")
{
return(EarLabBinaryFileType.Time);
}
if (xmlDataSet.Tables["Parameters"].Rows[0]["FileType"].ToString() == "FrequencyTime")
{
return(EarLabBinaryFileType.FrequencyTime);
}
else
{
return(EarLabBinaryFileType.LagFrequencyTime);
}
}
private string ReadMetaDataFile(string fileName)
{
DataSet xmlDataSet;
try
{
xmlDataSet = ReaderWriterXMLMetadata.Read(fileName);
}
catch (Exception e)
{
return(e.Message.ToString());
}
if (xmlDataSet != null)
{
// store the min/max values
this.minimumValue = (double)xmlDataSet.Tables["Parameters"].Rows[0]["MinimumValue"];
this.maximumValue = (double)xmlDataSet.Tables["Parameters"].Rows[0]["MaximumValue"];
this.unitsString = (string)xmlDataSet.Tables["Parameters"].Rows[0]["Units"];
// read in the dimensions, store them, and sort them so that they are ordered
this.dimensionsArray = new Dimension[xmlDataSet.Tables["Dimension"].Rows.Count];
int[] indexArray = new int[this.dimensionsArray.Length];
for (int i = 0; i < this.dimensionsArray.Length; i++)
{
this.dimensionsArray[i].Name = (string)xmlDataSet.Tables["Dimension"].Rows[i]["Name"];
this.dimensionsArray[i].Size = (long)xmlDataSet.Tables["Dimension"].Rows[i]["Size"];
this.dimensionsArray[i].Index = int.Parse(xmlDataSet.Tables["Dimension"].Rows[i]["Index"].ToString());
DataRow axisRow = xmlDataSet.Tables["Dimension"].Rows[i].GetChildRows("Dimension_Axis")[0];
if (axisRow.GetChildRows("Axis_Auto").Length > 0)
{
DataRow autoRow = axisRow.GetChildRows("Axis_Auto")[0];
this.dimensionsArray[i].Start = (double)autoRow["StartValue"];
this.dimensionsArray[i].End = (double)autoRow["EndValue"];
}
else
{
DataRow[] arrayRows = axisRow.GetChildRows("Axis_Array")[0].GetChildRows("Array_Element");
int[] index2Array = new int[arrayRows.Length];
this.dimensionsArray[i].ElementArray = new double[arrayRows.Length];
for (int j = 0; j < arrayRows.Length; j++)
{
index2Array[j] = (int)arrayRows[j]["Index"];
this.dimensionsArray[i].ElementArray[j] = (double)arrayRows[j]["Value"];
}
Array.Sort(index2Array, this.dimensionsArray[i].ElementArray);
this.dimensionsArray[i].Start = 0;
this.dimensionsArray[i].End = (double)(arrayRows.Length - 1);
}
indexArray[i] = this.dimensionsArray[i].Index;
}
Array.Sort(indexArray, this.dimensionsArray);
// check to make sure that the dimensions in the metadata line up with binary file length
long fileLength;
try
{
fileLength = new FileInfo(fileName.Replace(".metadata", ".binary")).Length;
}
catch
{
return("EarLab Data file could not be opened or read successfully.");
}
long tempLength = 1;
foreach (Dimension dimension in this.dimensionsArray)
{
tempLength *= dimension.Size;
}
tempLength *= FLOAT_BYTES;
if (tempLength != fileLength)
{
return("Incorrect EarLab Metadata dimension values vs EarLab Data file length.");
}
return("0");
}
else
{
return("Incorrect EarLab Metadata file format. Please verify file contents.");
}
}