/// <summary>
/// レコードを検索します。
/// </summary>
/// <param name="keyword">検索キーワード</param>
public IEnumerable <string> SearchRecord(string keyword)
{
string filePath = FileUtility.GetIndexFilePath(_storageDirectoryPath);
if (String.IsNullOrEmpty(filePath))
{
Console.WriteLine("インデックスがありません。先にインデックスを作成してください。");
yield break;
}
var keywordSplit = IndexUtility.SplitKeyword(keyword, Ngram).ToList();
var indices = IndexUtility.LoadIndexData(filePath, FileEncoding, keywordSplit);
var result = IndexUtility.SearchKeywordLines(keywordSplit.FirstOrDefault(), indices);
foreach (var item in keywordSplit.Skip(1))
{
var next = IndexUtility.SearchKeywordLines(item, indices).ToList();
result = result.Intersect(next);
}
var resultList = result.ToList();
string csvFilePath = FileUtility.GetCsvFilePath(_storageDirectoryPath);
foreach (var text in FileUtility.GetFileLines(resultList, csvFilePath, FileEncoding))
{
yield return(text);
}
}
public void SearchKeywordLines(string keyword, Dictionary <string, List <int> > indices, List <int> expected)
{
var actual = IndexUtility.SearchKeywordLines(keyword, indices).ToList();
CollectionAssert.AreEqual(expected, actual);
}
