/// <summary>
/// This method attempts to order a list of script files for batch-execution under
/// ACID transaction mode.
/// <para>
/// It performs this by running a list of scripts under transcation (ACID) mode.
/// If one of the script fail to process successfully (due to missing requirements
/// or other erroneous reason), it is moved to the end of the list. And the test
/// is re-run with the new order.
/// </para>
/// <para>
/// The loop continues each time with a different order until the order is
/// fully exhausted. Upon completion, it returns the pivotalIndex int value.
/// </para>
/// <para>
/// The pivotalIndex value marks the starting/ending spot to divide the list of
/// scripts of usable/unusable scripts.
/// </para>
/// <para>
/// If all scripts ran successfully, the pivotalIndex is equal to the total number
/// of scripts passed (ie: the array's length). If pivotalIndex is equals to 0,
/// all of the scripts failed, apparently.
/// </para>
/// <para>
/// For example, if you have 10 filename and the pivotalIndex is 6, it means the
/// filenames[0 thru 5] were successful and the filenames[6 thru 9] were error.
/// </para>
/// </summary>
/// <param name="filenames"></param>
/// <param name="successList"></param>
/// <param name="failList"></param>
/// <param name="logfile"></param>
/// <returns></returns>
public int ExecuteFileTranSmart(
string[] filenames,
out string[] successList,
out string[] failList,
string logfile
)
{
List <String> fileList = new List <string>();
List <String> buffList = new List <string>();
for (int i = 0; i < filenames.Length; i++)
{
fileList.Add(filenames[i]);
buffList.Add(StringUtil.StringArrayToString(FileUtil.ReadFile(filenames[i])));
}
// delete log file
File.Delete(logfile);
int max = filenames.Length;
int loopCounter = 0;
int lastErrorIndex = -1;
int pivotalIndex = 0;
while (loopCounter < max)
{
try
{
ExecuteBufferTran(buffList.ToArray(), null, ExecuteTypes.ExecuteNonQuery);
pivotalIndex = buffList.Count;
break;
}
catch (Exception ex)
{
#region The Smart Algorithm
try
{
if ((ex.Data.Contains("index")) &&
(int.TryParse(ex.Data["index"].ToString(), out pivotalIndex)))
{
string tempFile = fileList[pivotalIndex];
string tempBuff = buffList[pivotalIndex];
fileList.RemoveAt(pivotalIndex);
buffList.RemoveAt(pivotalIndex);
fileList.Add(tempFile);
buffList.Add(tempBuff);
// check for infinite loop ...
if (pivotalIndex == lastErrorIndex)
{
loopCounter++;
}
else
{
lastErrorIndex = pivotalIndex;
loopCounter = pivotalIndex;
}
#region Logging to File
try
{
StringBuilder sfoo = new StringBuilder();
Exception exfoo = ex;
sfoo.AppendFormat("moving to end of list: {1} | {2} | {3} | {4}{0}",
Environment.NewLine,
pivotalIndex, loopCounter, max, tempFile);
while (exfoo != null)
{
sfoo.AppendFormat("Message: {1}{0}", Environment.NewLine, exfoo.Message);
exfoo = exfoo.InnerException;
}
// move idx to the end of the list.
FileUtil.AppendFile(logfile, sfoo.ToString());
}
catch (Exception ex3)
{
throw new ApplicationException("Error logging", ex3);
}
#endregion
continue;
}
}
catch (Exception ex2)
{
throw new ApplicationException("Error in the Smart Algorithm", ex2);
}
#endregion
}
}
// create successList and failList
if (pivotalIndex > 0)
{
successList = StringUtil.CopyList(fileList, 0, pivotalIndex - 1);
}
else
{
successList = new string[0];
}
failList = StringUtil.CopyList(fileList, pivotalIndex, fileList.Count - 1);
return(pivotalIndex);
}
