/// <summary>
/// Parses command-line arguments into a reference-type object. Displays
/// usage message to Console.Out if invalid arguments are encountered.
/// Errors are output on Console.Error. Use ArgumentAttributes to
/// control parsing behavior.
/// </summary>
/// <typeparam name="T">Type of the parsed arguments object.</typeparam>
/// <param name="arguments">The actual arguments.</param>
/// <param name="destination">The resulting parsed arguments.</param>
/// <param name="reporter">The destination for parse errors.</param>
/// <returns>True if no errors were detected.</returns>
public static bool ParseWithUsage <T>(IEnumerable <string> arguments, T destination, ErrorReporter reporter) where T : class =>
ParseWithUsage(arguments, destination, new CommandLineParserOptions {
Reporter = s => reporter?.Invoke(s.ToString())
});
public void Run(ProgressReporter progressReporter = null, ErrorReporter errorReporter = null)
{
if (false == File.Exists(Config.BigSqlFilePath))
{
throw new ArgumentException($"specified big sql file not exist: {Config.BigSqlFilePath}", nameof(Config.BigSqlFilePath));
}
// reset the stop flag
if (Stop)
{
return;
}
Stop = false;
var sessionLevelDbPath = GetSessionLevelDbPath(Config.BigSqlFilePath);
if (false == Config.ContinueFromLastSessionWhenStarted && Directory.Exists(sessionLevelDbPath))
{
var sessionBackupPath = GetSessionBackupPath(sessionLevelDbPath);
Directory.Move(sessionLevelDbPath, sessionBackupPath);
}
using (var streamReader = new StreamReader(Config.BigSqlFilePath))
using (var sessionDb = new SessionLevelDb(sessionLevelDbPath, Config.SessionSaveType))
{
int sqlUnitIndex = 0;
int affectedRows = 0;
while (true)
{
// stop when requested
if (Stop)
{
StopCallBack?.Invoke();
return;
}
// read from file
var sqlUnitList = ReadBatchSqlUnits(streamReader, Config.BatchSize, Config.SqlUnitEndingLine, sessionDb, ref sqlUnitIndex);
if (false == sqlUnitList.Any())
{
break;
}
// prepare sql
var batchSql = SqlUnit.CombineSqlUnitList(sqlUnitList);
if (false == string.IsNullOrWhiteSpace(batchSql))
{
// batch execute sql
HelperFns.TryThenException(
() =>
{
var thisAffectedRows = RunSql(Config.ConnectionString, batchSql);
if (thisAffectedRows > 0)
{
affectedRows += thisAffectedRows;
}
},
Config.RetryIntervalWhenError, true, Config.RetryNumberWhenError + 1,
(e, i) => errorReporter?.Invoke($"{e.Message}; retry in {Config.RetryIntervalWhenError.TotalSeconds} seconds...")
);
// set executing status
foreach (var sqlUnit in sqlUnitList)
{
sessionDb.SetSqlUnitExecuteStatus(sqlUnit.Index, sqlUnit.Sql, true);
}
// report progress
progressReporter?.Invoke(sqlUnitIndex, affectedRows);
}
}
}
}
public async Task Run(ProgressReporter progressReporter = null, ErrorReporter errorReporter = null)
{
try
{
WriteLog += WriteLogToFile;
await LogPool.AddLog(LogItem.MakeLog(new LogMessage(">> Started running...")));
var bigSqlStorageFile = await StorageFile.GetFileFromPathAsync(Config.BigSqlFilePath);
if (null == bigSqlStorageFile)
{
throw new ArgumentException($"specified big sql file not exist: {Config.BigSqlFilePath}", nameof(Config.BigSqlFilePath));
}
// reset the stop flag
if (Stop)
{
return;
}
Stop = false;
var sessionLevelDbPath = await GetSessionLevelDbPath(Config.BigSqlFilePath);
if (false == Config.ContinueFromLastSessionWhenStarted && Directory.Exists(sessionLevelDbPath))
{
var sessionBackupPath = GetSessionBackupPath(sessionLevelDbPath);
Directory.Move(sessionLevelDbPath, sessionBackupPath);
}
using (var readStream = await bigSqlStorageFile.OpenStreamForReadAsync())
using (var streamReader = new StreamReader(readStream))
using (var sessionDb = new SessionLevelDb(sessionLevelDbPath, Config.SessionSaveType))
{
int sqlUnitIndex = 0;
int affectedRows = 0;
while (true)
{
// stop when requested
if (Stop)
{
await LogPool.AddLog(LogItem.MakeLog(new LogMessage(">> Canceled by user.")));
StopCallBack?.Invoke();
return;
}
// read from file
var startUnitIndex = sqlUnitIndex;
var sqlUnitList = ReadBatchSqlUnits(streamReader, Config.BatchSize, Config.SqlUnitEndingLine, sessionDb, ref sqlUnitIndex);
// check skip count
var unitIndexDiff = sqlUnitIndex - startUnitIndex;
var skipCount = unitIndexDiff - sqlUnitList.Count();
if (skipCount > 0)
{
await LogPool.AddLog(LogItem.MakeLog(new LogMessage($"Skipped {skipCount} already executed units.")));
}
// break when nothing to do
if (false == sqlUnitList.Any())
{
break;
}
// prepare sql
var batchSql = SqlUnit.CombineSqlUnitList(sqlUnitList);
if (false == string.IsNullOrWhiteSpace(batchSql))
{
// batch execute sql
await HelperFns.TryThenException(
async() =>
{
var thisAffectedRows = await RunSql(Config.ConnectionString, batchSql);
if (thisAffectedRows > 0)
{
affectedRows += thisAffectedRows;
}
},
Config.RetryIntervalWhenError, true, Config.RetryNumberWhenError + 1,
async (e, i) =>
{
var message = $"{e.Message}; retry in {Config.RetryIntervalWhenError.TotalSeconds} seconds...";
await LogPool.AddLog(LogItem.MakeLog(new LogMessage(message)));
errorReporter?.Invoke(message);
}
);
// set executing status
foreach (var sqlUnit in sqlUnitList)
{
sessionDb.SetSqlUnitExecuteStatus(sqlUnit.Index, sqlUnit.Sql, true);
}
// report progress
await LogPool.AddLog(LogItem.MakeLog(new LogMessage(sqlUnitIndex, affectedRows)));
progressReporter?.Invoke(sqlUnitIndex, affectedRows);
}
}
}
await LogPool.AddLog(LogItem.MakeLog(new LogMessage(">> Completed.")));
}
finally
{
WriteLog -= WriteLogToFile;
}
}