private List <dynamic> GetNewDynamicListForKeys(SortDefinitions sortDefinitions)
{
var dynList = new List <dynamic>();
List <SortDefinition> srtKeys = sortDefinitions.GetKeys();
for (int i = 0; i < sortDefinitions.GetKeys().Count; i++)
{
if (srtKeys[i].IsUniqueKey)
{
dynList.Add(null);
}
}
return(dynList);
}
public SqliteSortDefBulkInserter(string connStr, SortDefinitions sortDefinitions, int maxBatchSize = 250000)
{
sortDefs = sortDefinitions;
MaxBatchSize = maxBatchSize;
sortKeyDataList = new List <SortKeyData>();
SQLiteConnectionStringBuilder connBldr = new SQLiteConnectionStringBuilder();
connBldr.DataSource = connStr;
connBldr.JournalMode = SQLiteJournalModeEnum.Off;
connBldr.Version = 3;
dbConnection = new SQLiteConnection(connBldr.ConnectionString);
dbConnection.Open();
CreateTable();
SetInsertBulkCommand();
}
/// <summary>
/// Sorts a fixed width file by defined set of key definitions.
/// </summary>
/// <param name="sourcefilePath">Full path and file name of file to be sorted</param>
/// <param name="sortDefinitions">Define the keys values and sort directions</param>
/// <param name="setKeys">Action method to set the key values</param>
/// <param name="dataTransportation">Define the data transportation method.</param>
/// <param name="dataFilter">Function to filter out a data line (true to include data or false to exclude data)</param>
/// <param name="destinationFolder">Folder path where sorted and/or duplicate files will be place. (Uses folder of sourcefilePath when null)</param>
/// <param name="hasHeader">Does the file have a header row</param>
/// <param name="returnDuplicates">If true duplicates will be written out to file only if isUniqueKey is true in any of the key definitions.</param>
/// <param name="progress">A method to report progress</param>
/// <param name="maxBatchSize">Control the max insert batch size</param>
/// <returns></returns>
public static SortResults SortFixedWidthByKeyDefinitions(string sourcefilePath,
SortDefinitions sortDefinitions,
Action<string, string[]> setKeys,
Func<string, bool> dataFilter = null,
DataTransportation dataTransportation = null,
string destinationFolder = null,
bool hasHeader = true,
bool returnDuplicates = false,
Action<SortProgress> progress = null,
int maxBatchSize = 250000)
{
return SortFixedWidthByKeyDefCore(sourcefilePath: sourcefilePath,
sortDefinitions: sortDefinitions,
setKeys: setKeys,
dataFilter: dataFilter,
destinationFolder: destinationFolder,
hasHeader: hasHeader,
returnDuplicates: returnDuplicates,
progress: progress,
maxBatchSize: maxBatchSize,
dataTransportation: dataTransportation);
}
internal static SortResults SortFixedWidthByKeyDefCore(string sourcefilePath,
SortDefinitions sortDefinitions,
Action<string, string[]> setKeys,
Func<string, bool> dataFilter = null,
string destinationFolder = null,
bool hasHeader = true,
bool returnDuplicates = false,
Action<SortProgress> progress = null,
DataTransportation dataTransportation = null,
bool deleteDbConnPath = true,
bool writeOutSortFile = true,
int maxBatchSize = 250000)
{
ArgumentValidation.Validate(sourcefilePath, setKeys, destinationFolder);
SortVars srtVars = new SortVars(sourcefilePath, destinationFolder);
SortResults srtResults = new SortResults(sourcefilePath, srtVars.DestFolder, srtVars.DbConnPath);
SortProgress srtProgress = new SortProgress();
try
{
srtResults.DeleteDuplicatesFile();
int lineCount = 1;
using (StreamReader reader = new StreamReader(sourcefilePath))
using (SqliteSortDefBulkInserter sortBulkInserter = new SqliteSortDefBulkInserter(srtVars.DbConnPath, sortDefinitions, maxBatchSize))
{
string line;
srtVars.Header = GetHeader(hasHeader, reader);
srtProgress.InitReading();
while ((line = reader.ReadLine()) != null)
{
srtResults.IncrementLinesRead();
ReportReadProgress(progress, srtProgress, srtResults.LinesRead);
if (dataFilter == null || dataFilter(line))
{
string[] keyValues = new string[sortDefinitions.GetKeys().Count];
setKeys(line, keyValues);
sortBulkInserter.Add(new SortKeyData { KeyValues = keyValues, Data = (line + Constants.Common.PreserveCharacter).Compress() });
lineCount++;
}
else
{
srtResults.IncrementFiltered();
}
}
sortBulkInserter.InsertAnyLeftOvers();
sortBulkInserter.AddUnUniqueIndex();
}
srtProgress.InitWriting();
if (writeOutSortFile)
{
srtResults.WriteOutSorted(dbConnPath: srtVars.DbConnPath,
header: srtVars.Header,
sortDefinitions: sortDefinitions,
delimiter: Constants.Delimiters.Tab,
returnDuplicates: returnDuplicates,
dupesFilePath: srtResults.DuplicatesFilePath,
compressed: true,
progress: (counter) => { srtProgress.Counter = counter; if (progress != null) { progress(srtProgress); } },
dataTransportation: dataTransportation,
deleteDb: deleteDbConnPath);
}
else
{
srtResults.Header = srtVars.Header;
}
srtResults.DeleteDuplicatesFileIfNoDuplicates();
}
catch (Exception)
{
CleanUp(srtVars, srtResults);
srtProgress = null;
throw;
}
return srtResults;
}
internal void WriteOutSorted(string dbConnPath,
string header,
SortDefinitions sortDefinitions,
string delimiter = Constants.Delimiters.Comma,
bool returnDuplicates = false,
string dupesFilePath = "",
bool compressed = false,
Action <int> progress = null,
DataTransportation dataTransportation = null,
bool deleteDb = true)
{
bool writeSortedFile = WriteoutSortedFile(dataTransportation);
if (writeSortedFile)
{
DeleteSortedFile();
}
this.Header = header;
StreamWriter dupeWriter = !string.IsNullOrEmpty(dupesFilePath) ? new StreamWriter(dupesFilePath) : null;
StreamWriter sw = writeSortedFile ? new StreamWriter(SortedFilePath) : null;
using (sw)
using (dupeWriter)
{
if (!string.IsNullOrWhiteSpace(header))
{
if (sw != null)
{
sw.WriteLine(header);
}
if (returnDuplicates)
{
WriteHeaderForDuplicatesFile(true, header, dupeWriter);
}
}
using (var cn = new SQLiteConnection(@"Data Source=" + dbConnPath))
{
string selectCmd = "SELECT * FROM FileData ORDER BY " + sortDefinitions.BuildOrderClause();
cn.Open();
using (var cmd = new SQLiteCommand(selectCmd, cn))
using (SQLiteDataReader rdr = cmd.ExecuteReader())
{
var lastReadKeyList = GetNewDynamicListForKeys(sortDefinitions);
while (rdr.Read())
{
string sqlLiteData = (string)rdr["LineData"];
string sqlLiteoutLine = SortFileHelpers.UnEscapeByDelimiter(compressed ? sqlLiteData.Decompress() : sqlLiteData, delimiter);
if (lastReadKeyList.Count > 0)
{
var currentReadKeyList = SetNewDynamicListForKeysValues(sortDefinitions, rdr);
if (KeysEqual(currentReadKeyList, lastReadKeyList))
{
if (returnDuplicates)
{
dupeWriter.WriteLine(sqlLiteoutLine);
this.IncrementDuplicates();
}
continue;
}
lastReadKeyList = currentReadKeyList;
}
if (sw != null)
{
sw.WriteLine(sqlLiteoutLine);
}
IncrementLinesSorted();
ReportProgress(progress, LinesSorted);
DoDataTransportPassthrough(dataTransportation, sqlLiteoutLine);
}
}
cn.Close();
}
}
if (deleteDb)
{
SortFileHelpers.DeleteFileIfExists(dbConnPath);
}
}