/// <summary>
/// 执行搜索并将结果限制为特定类型，在返回之前，搜索结果将转换为相关类型，但不返回任何评分信息
/// </summary>
/// <typeparam name ="T">要搜索的实体类型 - 注意：必须实现ILuceneIndexable </typeparam>
/// <param name ="options">搜索选项</param>
/// <returns></returns>
public IScoredSearchResultCollection <T> ScoredSearch <T>(SearchOptions options)
{
// 确保类型匹配
if (typeof(T) != typeof(ILuceneIndexable))
{
options.Type = typeof(T);
}
var indexResults = LuceneIndexSearcher.ScoredSearch(options);
IScoredSearchResultCollection <T> results = new ScoredSearchResultCollection <T>();
results.TotalHits = indexResults.TotalHits;
var sw = Stopwatch.StartNew();
foreach (var indexResult in indexResults.Results)
{
IScoredSearchResult <T> result = new ScoredSearchResult <T>();
result.Score = indexResult.Score;
result.Entity = (T)GetConcreteFromDocument(indexResult.Document);
results.Results.Add(result);
}
sw.Stop();
results.Elapsed = indexResults.Elapsed + sw.ElapsedMilliseconds;
return(results);
}
/// <summary>
/// 执行搜索并将结果限制为特定类型，在返回之前，搜索结果将转换为相关类型，但不返回任何评分信息
/// </summary>
/// <typeparam name ="T">要搜索的实体类型 - 注意：必须实现ILuceneIndexable </typeparam>
/// <param name ="options">搜索选项</param>
/// <returns></returns>
public ISearchResultCollection <T> Search <T>(SearchOptions options)
{
options.Type = typeof(T);
var indexResults = LuceneIndexSearcher.ScoredSearch(options);
ISearchResultCollection <T> resultSet = new SearchResultCollection <T>
{
TotalHits = indexResults.TotalHits
};
var sw = Stopwatch.StartNew();
foreach (var indexResult in indexResults.Results)
{
var entity = (T)GetConcreteFromDocument(indexResult.Document);
resultSet.Results.Add(entity);
}
sw.Stop();
resultSet.Elapsed = indexResults.Elapsed + sw.ElapsedMilliseconds;
return(resultSet);
}
/// <summary>
/// 搜索引擎
/// </summary>
/// <param name="directory"></param>
/// <param name="analyzer"></param>
/// <param name="memoryCache"></param>
public SearchEngineImp(Directory directory, Analyzer analyzer, ICache cache)
{
this.analyzer = analyzer;
LuceneIndexer = new LuceneIndexer(directory, analyzer);
LuceneIndexSearcher = new LuceneIndexSearcher(directory, analyzer, cache);
}
/// <summary>
/// 搜索一条匹配度最高的记录
/// </summary>
/// <param name ="options">搜索选项</param>
/// <returns></returns>
public T SearchOne <T>(SearchOptions options) where T : class
{
return(GetConcreteFromDocument(LuceneIndexSearcher.ScoredSearchSingle(options)) as T);
}
/// <summary>
/// 搜索一条匹配度最高的记录
/// </summary>
/// <param name ="options">搜索选项</param>
/// <returns></returns>
public object SearchOne(SearchOptions options)
{
return(GetConcreteFromDocument(LuceneIndexSearcher.ScoredSearchSingle(options)));
}