public RecordOrderStateMachine(RecordSetType recordSetType, bool allowMultiHeader)
{
RecordSetType = recordSetType;
AllowMultiHeader = allowMultiHeader;
Status = RecordOrderState.Start;
}
/// <summary>
/// 自動単体テスト用のコンストラクタ
/// </summary>
public RecordOrderStateMachine(RecordSetType recordSetType, bool allowMultiHeader, RecordOrderState state)
{
RecordSetType = recordSetType;
AllowMultiHeader = allowMultiHeader;
Status = state;
}
/// <summary>マルチヘッダー対応用
/// <see cref="Record"/>の IEnumerable を変換し、<see cref="ReadResultBundle{THeader, TData, TTrailer, TEnd}"/>の List を作成する拡張メソッド
/// <see cref="IBundle{THeader, TData, TTrailer, TEnd}"/>から利用可能
/// </summary>
/// <typeparam name="THeader"></typeparam>
/// <typeparam name="TData"></typeparam>
/// <typeparam name="TTrailer"></typeparam>
/// <typeparam name="TEnd"></typeparam>
/// <param name="reader"></param>
/// <param name="records"></param>
/// <param name="recordSetType"></param>
/// <param name="isMultiHeader"></param>
/// <returns></returns>
internal static List <ReadResultBundle <THeader, TData, TTrailer, TEnd> > CreateBundles <THeader, TData, TTrailer, TEnd>(
this IBundle <THeader, TData, TTrailer, TEnd> reader,
IEnumerable <Record> records,
RecordSetType recordSetType,
bool isMultiHeader)
where THeader : Record
where TData : Record
where TTrailer : Record
where TEnd : Record
{
var results = new List <ReadResultBundle <THeader, TData, TTrailer, TEnd> >();
var idx = 0;
var recordStateMachine = new RecordOrderStateMachine(recordSetType, isMultiHeader);
ReadResultBundle <THeader, TData, TTrailer, TEnd> result = null;
List <TData> dataList = null;
foreach (var rec in records)
{
var recordInfo = $"L.{rec.LineNumber}";
if (rec is THeader)
{
var tr = recordStateMachine.ChangeState(RecordType.Header);
if (tr != RecordOrderStateTransitionResult.Success || recordStateMachine.Status != RecordOrderState.Header)
{
throw new FormatException($"{recordInfo} {tr}");
}
dataList = new List <TData>();
result = new ReadResultBundle <THeader, TData, TTrailer, TEnd>
{
Header = (THeader)rec,
DataList = dataList,
};
results.Add(result);
}
else if (rec is TData)
{
var tr = recordStateMachine.ChangeState(RecordType.Data);
if (tr != RecordOrderStateTransitionResult.Success || recordStateMachine.Status != RecordOrderState.Data)
{
throw new FormatException($"{recordInfo} {tr}");
}
dataList.Add((TData)rec);
}
else if (rec is TTrailer)
{
var tr = recordStateMachine.ChangeState(RecordType.Trailer);
if (tr != RecordOrderStateTransitionResult.Success || recordStateMachine.Status != RecordOrderState.Trailer)
{
throw new FormatException($"{recordInfo} {tr}");
}
result.Trailer = (TTrailer)rec;
}
else if (rec is TEnd)
{
var tr = recordStateMachine.ChangeState(RecordType.End);
if (tr != RecordOrderStateTransitionResult.Success || recordStateMachine.Status != RecordOrderState.End)
{
throw new FormatException($"{recordInfo} {tr}");
}
}
else
{
throw new InvalidOperationException(recordInfo);
}
idx++;
}
if (records.Any()) // レコード無しの場合があるのでガードする
{
var tr = recordStateMachine.ChangeState(RecordType.EOF);
if (tr != RecordOrderStateTransitionResult.Success || recordStateMachine.Status != RecordOrderState.Completed)
{
var last = records.Last();
var recordInfo = $"L.{last.LineNumber + 1}";
throw new FormatException($"{recordInfo} {tr}");
}
}
return(results);
}
