public static int DT2STG(DataTable table, String stgFileName, String outFileName, String optFileName)
{
//tidy up input parameters
stgFileName = stgFileName.Trim(); // StringTemplateGroup file
outFileName = outFileName.Trim(); // Output file
optFileName = optFileName.Trim(); // Options file (new 20/10/11)
//Fail if stgFileName not passed in
if (stgFileName == String.Empty)
throw new ArgumentException("template file name required", "stgFileName");
//Fail if outFileName not passed in
if (outFileName == String.Empty)
throw new ArgumentException("output file name required", "outFileName");
// Get options - these will be passed to HEADER, RECORD and FOOTER templates
// Note - Options file is optional - may not be present
IDictionary<string, object> options = new Dictionary<string, object>();
if (optFileName != String.Empty)
{
DataTable dtOptions = Delimited2DT(optFileName, true);
if (dtOptions.Rows.Count > 0)
{
foreach (DataColumn dc in dtOptions.Columns)
{
String s = dtOptions.Rows[0][dc].ToString();
// Ensure any leading and trailing double quotes are removed..
s = trimQuotes(s);
// Add cleaned value to the array (if not blank)
if (s != "")
{
options[dc.ColumnName.Trim()] = s;
}
}
}
}
//Get full path to the STG file, if not already passed in
String path = System.IO.Path.GetDirectoryName(stgFileName);
if (path == "")
stgFileName = System.IO.Path.Combine(System.IO.Directory.GetCurrentDirectory(), stgFileName);
//Revised for Antlr4...Read the template group from the file, define default delimiters
TemplateGroupFile stg = new TemplateGroupFile(stgFileName,'$','$');
//Register renderer for performing Url/Xml Encoding
stg.RegisterRenderer(typeof(String), new BasicFormatRenderer());
//System.Collections.ArrayList records = new System.Collections.ArrayList();
//Write the results to the output file
int rowCount = 0;
System.IO.StreamWriter sw = null;
try
{
sw = new System.IO.StreamWriter(outFileName, false);
// If the HEADER template is present, call it and write result to output file
if (stg.IsDefined("HEADER"))
{
Template stHeader = stg.GetInstanceOf("HEADER");
stHeader.Add("options", options);
sw.WriteLine(stHeader.Render());
}
foreach (DataRow dr in table.Rows)
{
IDictionary<string, object> record = new Dictionary<string, object>();
foreach (DataColumn dc in table.Columns)
{
String s = dr[dc].ToString();
// Ensure any leading and trailing double quotes are removed..
s = trimQuotes(s);
// Add cleaned value to the array (if not blank)
if (s != "")
{
record[dc.ColumnName.Trim()] = s;
}
}
// If the RECORD template is present, call it and write result to output file
if (stg.IsDefined("RECORD"))
{
Template stRecord = stg.GetInstanceOf("RECORD");
stRecord.Add("data", record);
stRecord.Add("options", options);
sw.WriteLine(stRecord.Render());
}
//records.Add(record);
rowCount++;
}
// If the FOOTER template is present, call it and write result to output file
if (stg.IsDefined("FOOTER"))
{
Template stFooter = stg.GetInstanceOf("FOOTER");
stFooter.Add("options", options);
sw.WriteLine(stFooter.Render());
}
}
catch (Exception ex)
{
//worth catching this?
throw new Exception("Error during conversion: " + ex.Message, ex.InnerException);
}
finally
{
sw.Close();
sw.Dispose();
}
return rowCount;
}
/** <summary>
* Where to report errors. All string templates in this group
* use this error handler by default.
* </summary>
*/
//class DefaultErrorListener : IStringTemplateErrorListener
//{
// public virtual void Error(string s, Exception e)
// {
// Console.Error.WriteLine(s);
// if (e != null)
// {
// Console.Error.WriteLine(e.Message);
// }
// }
// public virtual void Warning(string s)
// {
// Console.Out.WriteLine(s);
// }
//}
/// <summary>Convert a System.Data.DataTable using a StringTemplateGroup file</summary>
/// <param name="table">DataTable to be converted</param>
/// <param name="stgFileName">The name of the StringTemplateGroup file, including absolute or relative path as appropriate</param>
/// <param name="outFileName">The name of the file to write the output to</param>
/// <returns>The number of records processed</returns>
/// <exception cref="System.ArgumentException">Throws an exception if stgFileName or outFileName are not supplied</exception>
//public static int DT2STG_OLD(DataTable table, String stgFileName, String outFileName)
//{
// //tidy up input parameters
// stgFileName = stgFileName.Trim();
// outFileName = outFileName.Trim();
// //Fail if stgFileName not passed in
// if (stgFileName == String.Empty)
// throw new ArgumentException("template file name required", "stgFileName");
// //Fail if outFileName not passed in
// if (outFileName == String.Empty)
// throw new ArgumentException("output file name required", "outFileName");
// int rowCount = 0;
// //Register group loader (using same directory as STG file)
// String path = System.IO.Path.GetDirectoryName(stgFileName);
// if (path == "")
// path = ".";
// IStringTemplateGroupLoader loader = new PathGroupLoader(path, new DefaultErrorListener());
// StringTemplateGroup.RegisterDefaultLexer(typeof(TemplateLexer));
// StringTemplateGroup.RegisterGroupLoader(loader);
// //Read the template group from the file
// //StringTemplateGroup stg = loader.LoadGroup(System.IO.Path.GetFileNameWithoutExtension(stgFileName));
// System.IO.TextReader tr = new System.IO.StreamReader(stgFileName);
// StringTemplateGroup stg = new StringTemplateGroup(tr, typeof(TemplateLexer)); //lexer added to use $..$ in group templates instead of <..>
// tr.Close();
// // Used to check which templates are present before calling them
// ICollection<string> templateNames = stg.GetTemplateNames();
// System.Collections.ArrayList records = new System.Collections.ArrayList();
// //Write the results to the output file
// System.IO.StreamWriter sw = null;
// try
// {
// sw = new System.IO.StreamWriter(outFileName, false);
// // If the HEADER template is present, call it and write result to output file
// if (templateNames.Contains("HEADER"))
// {
// StringTemplate stHeader = stg.GetInstanceOf("HEADER");
// sw.WriteLine(stHeader.ToString());
// }
// foreach (DataRow dr in table.Rows)
// {
// IDictionary<string, object> record = new Dictionary<string, object>();
// foreach (DataColumn dc in table.Columns)
// {
// String s = dr[dc].ToString().Trim();
// // Ensure any leading and trailing double quotes are removed..
// if (s.StartsWith("\"") && s.EndsWith("\""))
// s = s.Substring(1, s.Length - 2);
// // Check for presence of properties in templates before attempting to use them
// if (s != "")
// {
// record[dc.ColumnName.Trim()] = s;
// }
// }
// // If the RECORD template is present, call it and write result to output file
// if (templateNames.Contains("RECORD"))
// {
// StringTemplate stRecord = stg.GetInstanceOf("RECORD");
// stRecord.SetAttribute("data", record);
// sw.WriteLine(stRecord.ToString());
// }
// records.Add(record);
// rowCount++;
// }
// // If the MAIN template is present, call it and write result to output file
// //NOTE - deprecated; use HEADER, RECORD, FOOTER instead in templates
// if (templateNames.Contains("MAIN"))
// {
// StringTemplate stMain = stg.GetInstanceOf("MAIN");
// stMain.SetAttribute("data", (object[])records.ToArray(typeof(IDictionary<string, object>)));
// sw.WriteLine(stMain.ToString());
// }
// // If the FOOTER template is present, call it and write result to output file
// if (templateNames.Contains("FOOTER"))
// {
// StringTemplate stFooter = stg.GetInstanceOf("FOOTER");
// sw.WriteLine(stFooter.ToString());
// }
// }
// catch (Exception ex)
// {
// //worth catching this?
// throw new Exception("Error during conversion: " + ex.Message, ex.InnerException);
// }
// finally
// {
// sw.Close();
// sw.Dispose();
// }
// return rowCount;
//}
//new version 07/10/11 - using Antlr4.StringTemplate..
public static int DT2STG(DataTable table, String stgFileName, String outFileName)
{
//tidy up input parameters
stgFileName = stgFileName.Trim();
outFileName = outFileName.Trim();
//Fail if stgFileName not passed in
if (stgFileName == String.Empty)
throw new ArgumentException("template file name required", "stgFileName");
//Fail if outFileName not passed in
if (outFileName == String.Empty)
throw new ArgumentException("output file name required", "outFileName");
int rowCount = 0;
//Get full path to the STG file, if not already passed in
String path = System.IO.Path.GetDirectoryName(stgFileName);
if (path == "")
stgFileName = System.IO.Path.Combine(System.IO.Directory.GetCurrentDirectory(), stgFileName);
//Revised for Antlr4...Read the template group from the file, define delimiters
TemplateGroupFile stg = new TemplateGroupFile(stgFileName,'$','$');
//System.Collections.ArrayList records = new System.Collections.ArrayList();
//Write the results to the output file
System.IO.StreamWriter sw = null;
try
{
sw = new System.IO.StreamWriter(outFileName, false);
// If the HEADER template is present, call it and write result to output file
if (stg.IsDefined("HEADER"))
{
Template stHeader = stg.GetInstanceOf("HEADER");
sw.WriteLine(stHeader.Render());
}
foreach (DataRow dr in table.Rows)
{
IDictionary<string, object> record = new Dictionary<string, object>();
foreach (DataColumn dc in table.Columns)
{
String s = dr[dc].ToString().Trim();
// Ensure any leading and trailing double quotes are removed..
if (s.StartsWith("\"") && s.EndsWith("\""))
s = s.Substring(1, s.Length - 2);
// Add cleaned value to the array (if not blank)
if (s != "")
{
record[dc.ColumnName.Trim()] = s;
}
}
// If the RECORD template is present, call it and write result to output file
if (stg.IsDefined("RECORD"))
{
Template stRecord = stg.GetInstanceOf("RECORD");
stRecord.Add("data", record);
sw.WriteLine(stRecord.Render());
}
//records.Add(record);
rowCount++;
}
// If the FOOTER template is present, call it and write result to output file
if (stg.IsDefined("FOOTER"))
{
Template stFooter = stg.GetInstanceOf("FOOTER");
sw.WriteLine(stFooter.Render());
}
}
catch (Exception ex)
{
//worth catching this?
throw new Exception("Error during conversion: " + ex.Message, ex.InnerException);
}
finally
{
sw.Close();
sw.Dispose();
}
return rowCount;
}
