/// <summary>
/// Routine to create a set of random strings.
/// </summary>
/// <param name="randStringType">Enumeration describing the format of the strings to be generated. (e.g. AlphaNumeric, Alpha Only etc.)</param>
/// <param name="numRows">Number of DataTable rows to generate containing random strings.</param>
/// <param name="minNumStrings">Minimum number of strings to generate for each output row.</param>
/// <param name="maxNumStrings">Maximum number of strings to generate for each output row.</param>
/// <param name="stringMinimumLength">Minimum length of strings to generate for each output row.</param>
/// <param name="stringMaximumLength">Maximum length of strings to generate for each output row.</param>
/// <returns>ADO.NET DataTable containing the generated strings.</returns>
public DataTable CreateRandomStringsDataTable(enRandomStringType randStringType,
int numRows,
string minNumStrings,
string maxNumStrings,
string stringMinimumLength,
string stringMaximumLength)
{
return(CreateRandomStringsDataTable(randStringType,
numRows,
minNumStrings,
maxNumStrings,
stringMinimumLength,
stringMaximumLength,
string.Empty,
string.Empty));
}
/// <summary>
/// Generates random strings containing repeating characters.
/// </summary>
/// <param name="randStringType">enRandomStringType enumeration used to define output format.</param>
/// <param name="numRows">Number of DataTable rows to generate containing random strings.</param>
/// <param name="minRepeatOutputLength">Minimum number of times character is repeated.</param>
/// <param name="maxRepeatOutputLength">Maximum number of times character is repeated.</param>
/// <param name="minNumRepeats">Minimum number of strings containing repeating characters to generate for each output row.</param>
/// <param name="maxNumRepeats">Minimum number of strings containing repeating characters to generate for each output row.</param>
/// <returns>ADO.NET DataTable containing the generated strings with repeating characgters.</returns>
public DataTable CreateRandomRepeatingCharacterDataTable(enRandomStringType randStringType, int numRows, string minRepeatOutputLength, string maxRepeatOutputLength, string minNumRepeats, string maxNumRepeats)
{
DataTable dt = new DataTable();
RandomNumber rn = new RandomNumber();
StringBuilder randString = new StringBuilder();
try
{
int minimumRepeatOutputLength = Convert.ToInt32(minRepeatOutputLength);
int maximumRepeatOutputLength = Convert.ToInt32(maxRepeatOutputLength);
int minimumNumberOfRepeats = Convert.ToInt32(minNumRepeats);
int maximumNumberOfRepeats = Convert.ToInt32(maxNumRepeats);
DataColumn dc = new DataColumn("RandomValue");
dc.DataType = Type.GetType("System.String");
dt.Columns.Add(dc);
for (int i = 0; i < numRows; i++)
{
DataRow dr = dt.NewRow();
int numStrings = rn.GenerateRandomInt(minimumNumberOfRepeats, maximumNumberOfRepeats);
randString.Length = 0;
for (int s = 0; s < numStrings; s++)
{
int size = rn.GenerateRandomInt(minimumRepeatOutputLength, maximumRepeatOutputLength);
string str = getRandomRepeatedCharacter[(int)randStringType](size);
randString.Append(str);
randString.Append(" ");
}
dr[0] = randString.ToString();
dt.Rows.Add(dr);
}
}
catch (System.Exception ex)
{
_msg.Length = 0;
_msg.Append("Error in CreateRandomRepeatingCharacterDataTable routine.\r\n");
_msg.Append(AppGlobals.AppMessages.FormatErrorMessage(ex));
throw new System.Exception(_msg.ToString());
}
finally
{
;
}
return(dt);
}
private enRandomStringType GetRandomStringType(RandomStringDataRequest dataRequest)
{
enRandomStringType randStringType = enRandomStringType.enUnknown;
if (dataRequest.OutputAN)
{
randStringType = enRandomStringType.enAN;
}
else if (dataRequest.OutputANUC)
{
randStringType = enRandomStringType.enANUC;
}
else if (dataRequest.OutputANLC)
{
randStringType = enRandomStringType.enANLC;
}
else if (dataRequest.OutputANX)
{
randStringType = enRandomStringType.enANX;
}
else if (dataRequest.OutputAL)
{
randStringType = enRandomStringType.enAL;
}
else if (dataRequest.OutputLC)
{
randStringType = enRandomStringType.enLC;
}
else if (dataRequest.OutputUC)
{
randStringType = enRandomStringType.enUC;
}
else if (dataRequest.OutputDEC)
{
randStringType = enRandomStringType.enDEC;
}
else if (dataRequest.OutputHEX)
{
randStringType = enRandomStringType.enHEX;
}
else
{
randStringType = enRandomStringType.enUnknown;
}
return(randStringType);
}
//properties
//methods
/// <summary>
/// Creates an ADO.NET DataTable object containing list of random strings.
/// </summary>
/// <param name="numRows">Number of rows containing random strings to generate.</param>
/// <param name="dataRequest">RandomStringDataRequest object containing definition for the type of strings to generate.</param>
/// <returns>ADO.NET DataTable object.</returns>
public DataTable CreateRandomDataTable(int numRows, RandomStringDataRequest dataRequest)
{
DataTable dt = null;
enRandomStringType randStringType = enRandomStringType.enUnknown;
enRandomSyllableStringType randSyllableStringType = enRandomSyllableStringType.enUnknown;
if (dataRequest.OutputRandomStrings)
{
randStringType = GetRandomStringType(dataRequest);
if (randStringType != enRandomStringType.enUnknown)
{
dt = CreateRandomStringsDataTable(randStringType, numRows, dataRequest.MinNumStrings, dataRequest.MaxNumStrings, dataRequest.StringMinimumLength, dataRequest.StringMaximumLength);
}
}
else if (dataRequest.OutputRandomSyllableStrings)
{
randSyllableStringType = GetRandomSyllableStringType(dataRequest);
if (randSyllableStringType != enRandomSyllableStringType.enUnknown)
{
dt = CreateRandomSyllableStringsDataTable(randSyllableStringType, numRows, dataRequest.MinNumSyllableStrings, dataRequest.MaxNumSyllableStrings, dataRequest.SyllableStringMinimumLength, dataRequest.SyllableStringMaximumLength);
}
}
else if (dataRequest.OutputRepeatingStrings)
{
if (dataRequest.OutputRepeatRandomCharacter)
{
randStringType = GetRandomRepeatingStringType(dataRequest);
if (randStringType != enRandomStringType.enUnknown)
{
dt = CreateRandomRepeatingCharacterDataTable(randStringType, numRows, dataRequest.MinRepeatOutputLength, dataRequest.MaxRepeatOutputLength, dataRequest.MinNumRepeats, dataRequest.MaxNumRepeats);
}
}
else
{
dt = CreateRepeatingTextDataTable(numRows, dataRequest.TextToRepeat, dataRequest.MinNumRepeats, dataRequest.MaxNumRepeats);
}
}
else
{
dt = new DataTable();
}
return(dt);
}
/// <summary>
/// Routine to create a set of random strings.
/// </summary>
/// <param name="randStringType">Enumeration describing the format of the strings to be generated. (e.g. AlphaNumeric, Alpha Only etc.)</param>
/// <param name="numRows">Number of DataTable rows to generate containing random strings.</param>
/// <param name="minNumStrings">Minimum number of strings to generate for each output row.</param>
/// <param name="maxNumStrings">Maximum number of strings to generate for each output row.</param>
/// <param name="stringMinimumLength">Minimum length of strings to generate for each output row.</param>
/// <param name="stringMaximumLength">Maximum length of strings to generate for each output row.</param>
/// <param name="regexPattern">Regex pattern to use when generating a string. Assign empty string to this property to bypass regex processing.</param>
/// <param name="regexReplacement">Replacement place holders for the regex generation. Assign empty string to this property to bypass regex processing.</param>
/// <returns>ADO.NET DataTable containing the generated random strings.</returns>
/// <remarks>Example of how regex is used by this routine: Regex.Replace(str, @"(\w{4})(\w{4})(\w{4})", @"$1-$2-$3"); </remarks>
/// <remarks>Leave regexPattern and regexReplacement blank if you do not wish to use regex.</remarks>
public DataTable CreateRandomStringsDataTable(enRandomStringType randStringType,
int numRows,
string minNumStrings,
string maxNumStrings,
string stringMinimumLength,
string stringMaximumLength,
string regexPattern,
string regexReplacement)
{
DataTable dt = new DataTable();
RandomNumber rn = new RandomNumber();
StringBuilder randString = new StringBuilder();
try
{
int minimumNumberOfStrings = Convert.ToInt32(minNumStrings);
int maximumNumberOfStrings = Convert.ToInt32(maxNumStrings);
int minimumLength = Convert.ToInt32(stringMinimumLength);
int maximumLength = Convert.ToInt32(stringMaximumLength);
DataColumn dc = new DataColumn("RandomValue");
dc.DataType = Type.GetType("System.String");
dt.Columns.Add(dc);
for (int i = 0; i < numRows; i++)
{
DataRow dr = dt.NewRow();
int numStrings = rn.GenerateRandomInt(minimumNumberOfStrings, maximumNumberOfStrings);
randString.Length = 0;
for (int s = 0; s < numStrings; s++)
{
int size = rn.GenerateRandomInt(minimumLength, maximumLength);
string str = getRandomString[(int)randStringType](size);
//str = Regex.Replace(str, @"(\w{4})(\w{4})(\w{4})", @"$1-$2-$3");
if (regexPattern.Trim().Length > 0)
{
if (regexReplacement.Trim().Length > 0)
{
str = Regex.Replace(str, regexPattern, regexReplacement);
}
}
randString.Append(str);
randString.Append(" ");
}
dr[0] = randString.ToString();
dt.Rows.Add(dr);
}
}
catch (System.Exception ex)
{
_msg.Length = 0;
_msg.Append("Error in CreateRandomStringsDataTable routine.\r\n");
_msg.Append(AppGlobals.AppMessages.FormatErrorMessage(ex));
throw new System.Exception(_msg.ToString());
}
finally
{
;
}
return(dt);
}
