public string GetCsvImportReadySqlScript(string fileContent, string currentFolder)
{
if (fileContent.Contains(Constants.DefaultPlaceholders.DbUpgradeOperationScriptsContent))
{
var startIndexOfOperation = fileContent.IndexOf(Constants.ToolOperations.CsvImport,
StringComparison.Ordinal);
if (startIndexOfOperation > 0)
{
var endIndexOfOperationDefinition = fileContent.Substring(startIndexOfOperation)
.IndexOf(">", StringComparison.Ordinal);
if (endIndexOfOperationDefinition > 0)
{
var operationDefinitionString = fileContent.Substring(startIndexOfOperation,
endIndexOfOperationDefinition + 1);
var tableIndex = operationDefinitionString.IndexOf(Constants.ToolOperations.Attributes.Table,
StringComparison.Ordinal);
var columnsIndex = operationDefinitionString.IndexOf(
Constants.ToolOperations.Attributes.Columns, StringComparison.Ordinal);
var csvFileIndex = operationDefinitionString.IndexOf(
Constants.ToolOperations.Attributes.CsvFile, StringComparison.Ordinal);
if (tableIndex < 0 || columnsIndex < 0 || csvFileIndex < 0)
{
throw new ArgumentException(
"The CSV import tool operation is not defined properly: There should be TABLE,COLUMNS and CSV_FILE attributes.");
}
var csvImport = new CsvImport
{
Table =
GetAttributeValue(operationDefinitionString,
Constants.ToolOperations.Attributes.Table),
Columns =
GetAttributeValue(operationDefinitionString,
Constants.ToolOperations.Attributes.Columns).Split(',').ToList(),
CsvFile =
GetAttributeValue(operationDefinitionString,
Constants.ToolOperations.Attributes.CsvFile)
};
fileContent = fileContent.Replace(
Constants.DefaultPlaceholders.DbUpgradeOperationScriptsContent,
string.Concat("\n", GetCsvImportSqlScript(currentFolder, csvImport)));
}
}
}
return fileContent;
}
private static string GetCsvImportSqlScript(string currentFolder, CsvImport csvImport)
{
var retVal = new StringBuilder();
var csvContent = File.ReadAllLines(string.Concat(currentFolder, @"\", csvImport.CsvFile));
var insertFormat = string.Format("INSERT INTO {0} ({1})", csvImport.Table,
string.Join(",", csvImport.Columns.ToArray()));
var i = 0;
foreach (var csvLine in csvContent)
{
// skip the header line.
if (i++ <= 0) continue;
var values = CsvRowToStringArray(csvLine);
retVal.AppendLine(string.Concat(insertFormat,
string.Format(" VALUES({0});",
string.Join(",", values))));
}
return retVal.ToString();
}
