public async Task <bool> FillAsync(ITemplate t, IDictionary <string, dynamic> stuffing, Stream output)
{
StringBuilder errors = new StringBuilder();
if (!stuffing.ContainsKey("rows"))
{
//A CSV report needs data['rows'] to be set to an enumerable list of rows
return(false);
}
// read any settings passed in
bool quoteStrings;
readSettings(stuffing, out quoteStrings);
// does it even need a template? no not really.
// 1. the template is null or blank
// find the first IList<IList<object>> and iterate
// 2. the template has one or two rows (after removing #comments)
// row 1: header (optional)
// row 2 (or 1 if no header): row template
// read IList<IDictionary<string, object>> stored in stuffing["rows"]
StreamWriter writer = new StreamWriter(output, UTF8Encoding.UTF8);
foreach (var section in t.SectionNames)
{
string fulltemplate = t.GetSectionText(section).Trim();
if (string.IsNullOrEmpty(fulltemplate))
{
// 1.
dynamic rows = stuffing.Values.FirstOrDefault(a => a is IList <object>);
if (rows == null)
{
continue;
}
foreach (var row in rows)
{
var list = row as IList <object>;
if (list == null)
{
// row is some kind of object. Pretend the coder gave us a string representaion of the whole row.
await writer.WriteLineAsync(row.ToString());
}
else
{
// row is a list of items, CS them!
StringBuilder s = new StringBuilder();
foreach (var item in row)
{
addField(item, s, quoteStrings);
}
await writer.WriteLineAsync(s.ToString());
}
}
}
else
{
// 2.
Debug.WriteLine("CsvFiller.Fill", "custom csv template");
string[] lines = fulltemplate.Split(new[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries);
List <string> linesClean = new List <string>();
foreach (var line in lines)
{
if (!line.StartsWith("#") && !line.StartsWith("//") && !line.StartsWith("--"))
{
linesClean.Add(line);
}
}
string headerTemplate = null;
string rowTemplate = null;
if (linesClean.Count == 1)
{
rowTemplate = linesClean[0];
}
else
{
headerTemplate = linesClean[0];
rowTemplate = linesClean[1];
}
dynamic rows = stuffing["rows"];
if (headerTemplate != null)
{
await writer.WriteLineAsync(headerTemplate);
}
foreach (dynamic row in rows)
{
StringBuilder srow = new StringBuilder(rowTemplate);
IDictionary <string, object> dic = row as IDictionary <string, object>;
if (dic != null)
{
TextTemplateTool.ReplaceKeys(srow, dic, errors);
}
else
{
IDictionary <object, object> pdic = row as IDictionary <object, object>;
if (pdic != null)
{
TextTemplateTool.ReplaceKeys(srow, pdic, errors);
}
else
{
Debug.WriteLine("row is neither IDictionary<string,object> or IDictionary<object,object>");
continue;
}
}
await writer.WriteLineAsync(srow.ToString());
}
}
}
// the caller owns the stream, they have to close it.
// so don't go using() or closing the streamwriter
await writer.FlushAsync();
Debug.WriteLine(errors);
return(true);
}
public async Task <bool> FillAsync(ITemplate t, IDictionary <string, dynamic> stuffing, Stream output)
{
StringBuilder errors = new StringBuilder();
var blockkeys = stuffing.Keys.Where(a => a.StartsWith("rows")).OrderBy(a => a).ToArray();
if (blockkeys.Count() == 0)
{
//A text file data['rows'] to be set to an enumerable list of rows
return(false);
}
// read any settings passed in
var settings = readSettings(stuffing);
// 1
// 2. the template has N rows (after removing #comments)
// row 1: block 1 to be the template matched with blockkey 1 IList contents
// row 2: block 2 to be the template matched with blockkey 2 IList contents
// row N: ...
// read IList<IDictionary<string, object>> stored in stuffing["rows"]
UTF8Encoding utf8NoPreamble = new UTF8Encoding(false);
UTF8Encoding utf8WithPreamble = new UTF8Encoding(true);
Encoding utf8 = settings.BOMPreamble ? utf8WithPreamble : utf8NoPreamble;
StreamWriter writer = new StreamWriter(output, utf8);
foreach (var section in t.SectionNames)
{
string fulltemplate = t.GetSectionText(section).Trim();
if (string.IsNullOrEmpty(fulltemplate))
{
// 1.
dynamic rows = stuffing.Values.FirstOrDefault(a => a is IList <object>);
if (rows == null)
{
continue;
}
foreach (var row in rows)
{
var list = row as IList <object>;
if (list == null)
{
// row is some kind of object. Pretend the coder gave us a string representaion of the whole row.
await writer.WriteAsync(row.ToString());
}
else
{
// row is a list of items, concat them
StringBuilder s = new StringBuilder();
foreach (var item in row)
{
addField(item, s);
}
await writer.WriteAsync(s.ToString());
}
if (settings.NewLine != string.Empty)
{
await writer.WriteAsync(settings.NewLine);
}
}
}
else
{
// 2.
Debug.WriteLine("TextFiller.Fill", "custom text template");
string[] lines = fulltemplate.Split(new[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries);
List <string> linesClean = new List <string>();
foreach (var line in lines)
{
if (!line.StartsWith("#") && !line.StartsWith("//") && !line.StartsWith("--"))
{
linesClean.Add(line);
}
}
if (linesClean.Count != blockkeys.Count())
{
Debug.WriteLine("template line count does not match data row block count");
return(false);
}
// loop over blocks
for (int i = 0; i < linesClean.Count; i++)
{
dynamic rows = stuffing[blockkeys[i]];
foreach (dynamic row in rows)
{
StringBuilder srow = new StringBuilder(linesClean[i]);
IDictionary <string, object> dic = row as IDictionary <string, object>;
if (dic != null)
{
TextTemplateTool.ReplaceKeys(srow, dic, errors);
}
else
{
IDictionary <object, object> pdic = row as IDictionary <object, object>;
if (pdic != null)
{
TextTemplateTool.ReplaceKeys(srow, pdic, errors);
}
else
{
Debug.WriteLine("row is neither IDictionary<string,object> or IDictionary<object,object>");
continue;
}
}
await writer.WriteAsync(srow.ToString());
if (settings.NewLine != string.Empty)
{
await writer.WriteAsync(settings.NewLine);
}
}
}
}
}
// the caller owns the stream, they have to close it.
// so don't go using() or closing the streamwriter
await writer.FlushAsync();
Debug.WriteLine(errors);
return(true);
}
