/// <summary>Generic constructor.</summary>
/// <param name="File"></param>
/// <param name="OutputItems"></param>
internal DataReader(DataReaderSettings ReaderSettings)
{
this._settings = ReaderSettings;
}
/// <summary>Generic constructor.</summary>
/// <param name="File"></param>
/// <param name="OutputItems"></param>
internal DataReader(DataReaderSettings ReaderSettings)
{
this._settings = ReaderSettings;
}
/// <summary>Base constructor plus filelocation</summary>
internal PythonReader(DataReaderSettings ReaderSettings, String FileLocation)
: base(ReaderSettings)
{
this._fileloc = new FileInfo(FileLocation);
this._items = null;
}
internal static void LoadDataReaders()
{
FileInfo fi_dataitems = new FileInfo(Config.GetSetting("filelocation_xmlsettings") + "DataReaders.xml");
if (!fi_dataitems.Exists)
throw new FileNotFoundException("DataReader.xml not found!");
Exception xmlex = null;
List<DataReaderSettings> readers = new List<DataReaderSettings>();
using (XmlReader xr = new XmlTextReader(fi_dataitems.OpenText()))
{
try
{
xr.ReadStartElement();
while (xr.Read())
{
if (xr.NodeType == XmlNodeType.Element && xr.Name == "DataReader")
{
DataReaderSettings drs = null;
String temp = xr.GetAttribute("name");
if (String.IsNullOrEmpty(temp))
throw new FormatException("DataReader name attribute not found.");
drs = new DataReaderSettings(temp);
String filename = xr.GetAttribute("filename");
if (String.IsNullOrEmpty(filename))
throw new FormatException("DataReader filename attribute not found.");
temp = xr.GetAttribute("dirsetting");
if (String.IsNullOrEmpty(temp)) { temp = "./"; }
else
{
temp = Config.GetSetting(temp);
if (String.IsNullOrEmpty(temp)) { temp = "./"; }
}
drs.FileLocation = new FileInfo(temp + filename);
temp = xr.GetAttribute("dataitem");
if (String.IsNullOrEmpty(temp))
throw new FormatException("DataReader dataitem attribute not found.");
drs.DataType = null;
for (int i = 0; i < ItemSettings.Length; ++i)
{
if (ItemSettings[i].Name.ToLowerInvariant() == temp.ToLowerInvariant())
{
drs.DataType = ItemSettings[i];
}
}
if (ReferenceEquals(drs.DataType,null))
throw new FormatException("DataReader dataitem value " + temp + " not found in loaded DataItems.");
Int32 startline = 0;
temp = xr.GetAttribute("startline");
Int32.TryParse(xr.GetAttribute("startline"), out startline);
drs.StartLine = startline;
readers.Add(drs);
}
}
}
catch (Exception ex) { xmlex = ex; }
finally
{
xr.Close();
}
//rethrow exception if it exists after we've ensured the xml file is closed
if (!ReferenceEquals(xmlex, null))
throw xmlex;
}
ReaderSettings = readers.ToArray();
}
internal static void LoadDataReaders()
{
FileInfo fi_dataitems = new FileInfo(Config.GetSetting("filelocation_xmlsettings") + "DataReaders.xml");
if (!fi_dataitems.Exists)
{
throw new FileNotFoundException("DataReader.xml not found!");
}
Exception xmlex = null;
List <DataReaderSettings> readers = new List <DataReaderSettings>();
using (XmlReader xr = new XmlTextReader(fi_dataitems.OpenText()))
{
try
{
xr.ReadStartElement();
while (xr.Read())
{
if (xr.NodeType == XmlNodeType.Element && xr.Name == "DataReader")
{
DataReaderSettings drs = null;
String temp = xr.GetAttribute("name");
if (String.IsNullOrEmpty(temp))
{
throw new FormatException("DataReader name attribute not found.");
}
drs = new DataReaderSettings(temp);
String filename = xr.GetAttribute("filename");
if (String.IsNullOrEmpty(filename))
{
throw new FormatException("DataReader filename attribute not found.");
}
temp = xr.GetAttribute("dirsetting");
if (String.IsNullOrEmpty(temp))
{
temp = "./";
}
else
{
temp = Config.GetSetting(temp);
if (String.IsNullOrEmpty(temp))
{
temp = "./";
}
}
drs.FileLocation = new FileInfo(temp + filename);
temp = xr.GetAttribute("dataitem");
if (String.IsNullOrEmpty(temp))
{
throw new FormatException("DataReader dataitem attribute not found.");
}
drs.DataType = null;
for (int i = 0; i < ItemSettings.Length; ++i)
{
if (ItemSettings[i].Name.ToLowerInvariant() == temp.ToLowerInvariant())
{
drs.DataType = ItemSettings[i];
}
}
if (ReferenceEquals(drs.DataType, null))
{
throw new FormatException("DataReader dataitem value " + temp + " not found in loaded DataItems.");
}
Int32 startline = 0;
temp = xr.GetAttribute("startline");
Int32.TryParse(xr.GetAttribute("startline"), out startline);
drs.StartLine = startline;
readers.Add(drs);
}
}
}
catch (Exception ex) { xmlex = ex; }
finally
{
xr.Close();
}
//rethrow exception if it exists after we've ensured the xml file is closed
if (!ReferenceEquals(xmlex, null))
{
throw xmlex;
}
}
ReaderSettings = readers.ToArray();
}
