/// <summary>
/// 获取索引存放的分目录
/// </summary>
/// <param name="type"></param>
/// <param name="parameter"></param>
/// <returns></returns>
public static string GetLuceneTextIndexDirectoryPath(LuceneTextIndexType type, string parameter)
{
string d = string.Concat(type.ToString(), "\\");
if (!string.IsNullOrEmpty(parameter))
{
d = string.Concat(d, parameter, "\\");
}
string p = Path.Combine(Vars.LUCENE_TEXT_INDEX_FILE_DIRECTORY, d);
return p;
}
/// <summary>
/// 获取索引存放的分目录
/// </summary>
/// <param name="type"></param>
/// <param name="parameter"></param>
/// <returns></returns>
public static string GetLuceneTextIndexDirectoryPath(LuceneTextIndexType type, string parameter)
{
string d = string.Concat(type.ToString(), "\\");
if (!string.IsNullOrEmpty(parameter))
{
d = string.Concat(d, parameter, "\\");
}
string p = Path.Combine(Vars.LUCENE_TEXT_INDEX_FILE_DIRECTORY, d);
return(p);
}
/// <summary>
/// 搜索LUCENE数据
/// </summary>
/// <param name="indexType"></param>
/// <param name="query"></param>
/// <param name="sort"></param>
/// <param name="pagerInfo"></param>
/// <param name="callback"></param>
/// <returns></returns>
public static List<Document> SearchLuceneData(LuceneTextIndexType indexType, Query query, Sort sort, PagerInfo pagerInfo, SearchLuceneDataLoopItemHandler callback)
{
List<Document> list = new List<Document>();
string textIndexDir = Utilities.GetLuceneTextIndexDirectoryPath(indexType, null);
FSDirectory directory = FSDirectory.Open(new System.IO.DirectoryInfo(textIndexDir), new NoLockFactory());
IndexReader indexReader = IndexReader.Open(directory, true);
IndexSearcher indexSearcher = new IndexSearcher(indexReader);
ScoreDoc[] docs;
int totalCount;
int startOffset;
int endOffset;
if (sort != null)
{
TopFieldDocs resultFieldDocs = indexSearcher.Search(query, null, indexSearcher.MaxDoc(), sort);
totalCount = resultFieldDocs.totalHits;
pagerInfo.RecordCount = totalCount;
startOffset = (pagerInfo.PageIndex - 1) * pagerInfo.PageSize;
endOffset = pagerInfo.PageIndex * pagerInfo.PageSize;
if (endOffset >= totalCount)
{
endOffset = totalCount;
}
docs = resultFieldDocs.scoreDocs;
}
else
{
TopDocs resultFieldDocs = indexSearcher.Search(query, null, indexSearcher.MaxDoc());
totalCount = resultFieldDocs.totalHits;
pagerInfo.RecordCount = totalCount;
startOffset = (pagerInfo.PageIndex - 1) * pagerInfo.PageSize;
endOffset = pagerInfo.PageIndex * pagerInfo.PageSize;
if (endOffset >= totalCount)
{
endOffset = totalCount;
}
docs = resultFieldDocs.scoreDocs;
}
if (totalCount > 0)
{
for (int i = startOffset; i < endOffset; i++)
{
ScoreDoc hit = docs[i];
Document doc = indexSearcher.Doc(hit.doc);
list.Add(doc);
if (callback != null)
{
callback(doc);
}
}
}
indexSearcher.Close();
directory.Close();
return list;
}
/// <summary>
/// 搜索LUCENE数据
/// </summary>
/// <param name="indexType"></param>
/// <param name="query"></param>
/// <param name="sort"></param>
/// <param name="pagerInfo"></param>
/// <param name="callback"></param>
/// <returns></returns>
public static List <Document> SearchLuceneData(LuceneTextIndexType indexType, Query query, Sort sort, PagerInfo pagerInfo, SearchLuceneDataLoopItemHandler callback)
{
List <Document> list = new List <Document>();
string textIndexDir = Utilities.GetLuceneTextIndexDirectoryPath(indexType, null);
FSDirectory directory = FSDirectory.Open(new System.IO.DirectoryInfo(textIndexDir), new NoLockFactory());
IndexReader indexReader = IndexReader.Open(directory, true);
IndexSearcher indexSearcher = new IndexSearcher(indexReader);
ScoreDoc[] docs;
int totalCount;
int startOffset;
int endOffset;
if (sort != null)
{
TopFieldDocs resultFieldDocs = indexSearcher.Search(query, null, indexSearcher.MaxDoc(), sort);
totalCount = resultFieldDocs.totalHits;
pagerInfo.RecordCount = totalCount;
startOffset = (pagerInfo.PageIndex - 1) * pagerInfo.PageSize;
endOffset = pagerInfo.PageIndex * pagerInfo.PageSize;
if (endOffset >= totalCount)
{
endOffset = totalCount;
}
docs = resultFieldDocs.scoreDocs;
}
else
{
TopDocs resultFieldDocs = indexSearcher.Search(query, null, indexSearcher.MaxDoc());
totalCount = resultFieldDocs.totalHits;
pagerInfo.RecordCount = totalCount;
startOffset = (pagerInfo.PageIndex - 1) * pagerInfo.PageSize;
endOffset = pagerInfo.PageIndex * pagerInfo.PageSize;
if (endOffset >= totalCount)
{
endOffset = totalCount;
}
docs = resultFieldDocs.scoreDocs;
}
if (totalCount > 0)
{
for (int i = startOffset; i < endOffset; i++)
{
ScoreDoc hit = docs[i];
Document doc = indexSearcher.Doc(hit.doc);
list.Add(doc);
if (callback != null)
{
callback(doc);
}
}
}
indexSearcher.Close();
directory.Close();
return(list);
}
