/// <summary>
/// 开始索引
/// </summary>
/// <param name="name"></param>
public virtual void Begin(string name)
{
if (!StoreIndexs.ContainsKey(name))
{
return;
}
var storeIndex = StoreIndexs[name];
if (storeIndex == null)
{
return;
}
Worder.Load(storeIndex);
}
/// <summary>
/// 删除索引
/// </summary>
/// <param name="name"></param>
public virtual void Delete(string name)
{
if (!StoreIndexs.ContainsKey(name))
{
return;
}
var storeIndex = StoreIndexs[name];
if (storeIndex == null)
{
return;
}
Worder.Clear(storeIndex);
Documentor.Clear(storeIndex);
}
/// <summary>
/// 得到结果
/// </summary>
/// <param name="searchQuery"></param>
/// <returns></returns>
protected virtual SearchResultInfo GetSearchResultByFind(SearchQueryInfo searchQuery)
{
var result = new SearchResultInfo {
Terms = Analyzer.Resolve(searchQuery.Key)
};
if (result.Terms == null)
{
return(result);
}
if (!StoreIndexs.ContainsKey(searchQuery.Name))
{
return(result);
}
var storeIndex = StoreIndexs[searchQuery.Name];
if (storeIndex == null)
{
return(result);
}
result.Feilds = storeIndex.StoreFields.Select(it => it.Name).ToList();
result.Words = new List <WordInfo>();
foreach (var term in result.Terms)
{
if (result.Words.Count(it => it.Name == term.Name) > 0)
{
continue;
}
var word = Worder.GetInfo(storeIndex, term.Name);
if (word != null)
{
result.Words.Add(word);
}
}
var documentIds = GetSearchDocumentIds(storeIndex, result, searchQuery);
if (documentIds != null)
{
result.DocumentCount = documentIds.Count;
AddSearchDocuments(storeIndex, searchQuery, result, documentIds);
}
if (result.Words.Count > 0)
{
result.DataCount = result.Words.Sum(it => it.DocumentCount) / result.Words.Count;
}
return(result);
}
/// <summary>
/// 删除词典
/// </summary>
/// <param name="name"></param>
/// <param name="terms"></param>
public virtual bool DeleteWords(string name, IList <TermInfo> terms)
{
if (!StoreIndexs.ContainsKey(name))
{
return(false);
}
var storeIndex = StoreIndexs[name];
if (storeIndex == null)
{
return(false);
}
foreach (var term in terms)
{
Worder.Remove(storeIndex, term.Name);
}
return(true);
}
/// <summary>
/// 创建索引
/// </summary>
/// <param name="name"></param>
/// <param name="documents"></param>
public virtual void AddDocuments(string name, IList <DocumentInfo> documents)
{
if (!StoreIndexs.ContainsKey(name))
{
return;
}
var storeIndex = StoreIndexs[name];
if (storeIndex == null)
{
return;
}
foreach (var document in documents)
{
var feildTerms = SaveDocument(storeIndex, document);
CreateWords(storeIndex, document, feildTerms);
}
}