/// <summary>
/// 删除Books表信息时 添加删除索引请求至队列
/// </summary>
/// <param name="bid"></param>
public void Del(int bid)
{
BookViewMode bvm = new BookViewMode();
bvm.Id = bid;
bvm.IT = IndexType.Delete;
bookQueue.Enqueue(bvm);
}
/// <summary>
/// 修改Books表信息时 添加修改索引(实质上是先删除原有索引 再新增修改后索引)请求至队列
/// </summary>
/// <param name="books"></param>
public void Mod(Books books) {
BookViewMode bvm = new BookViewMode();
bvm.Id = books.Id;
bvm.Title = books.Title;
bvm.IT = IndexType.Modify;
bvm.Content = books.ContentDescription;
bookQueue.Enqueue(bvm);
}
/// <summary>
/// 修改Books表信息时 添加修改索引(实质上是先删除原有索引 再新增修改后索引)请求至队列
/// </summary>
/// <param name="books"></param>
public void Mod(Books books)
{
BookViewMode bvm = new BookViewMode();
bvm.Id = books.Id;
bvm.Title = books.Title;
bvm.IT = IndexType.Modify;
bvm.Content = books.ContentDescription;
bookQueue.Enqueue(bvm);
}
/// <summary>
/// 修改Books表信息时 添加修改索引(实质上是先删除原有索引 再新增修改后索引)请求至队列
/// </summary>
/// <param name="books"></param>
public void Mod(Books books)
{
BookViewMode bvm = new BookViewMode();
bvm.Id = books.Id;
bvm.Description = books.Description;
bvm.MenuId = books.MenuId;
bvm.IT = IndexType.Modify;
bvm.CreativeHTML = books.CreativeHTML;
bookQueue.Enqueue(bvm);
}
/// <summary>
/// 更新索引库操作
/// </summary>
private void CRUDIndex()
{
FSDirectory directory = FSDirectory.Open(new DirectoryInfo(indexPath), new NativeFSLockFactory());
bool isExist = IndexReader.IndexExists(directory);
if (isExist)
{
if (IndexWriter.IsLocked(directory))
{
IndexWriter.Unlock(directory);
}
}
IndexWriter writer = new IndexWriter(directory, new PanGuAnalyzer(), !isExist, IndexWriter.MaxFieldLength.UNLIMITED);
while (bookQueue.Count > 0)
{
Document document = new Document();
BookViewMode book = bookQueue.Dequeue();
if (book.IT == IndexType.Insert)
{
document.Add(new Field("id", book.Id.ToString(), Field.Store.YES, Field.Index.NOT_ANALYZED));
document.Add(new Field("MenuId", book.MenuId.ToString(), Field.Store.YES, Field.Index.ANALYZED));
document.Add(new Field("Description", book.Description, Field.Store.YES, Field.Index.ANALYZED,
Field.TermVector.WITH_POSITIONS_OFFSETS));
document.Add(new Field("CreativeHTML", book.CreativeHTML, Field.Store.YES, Field.Index.ANALYZED,
Field.TermVector.WITH_POSITIONS_OFFSETS));
writer.AddDocument(document);
}
else if (book.IT == IndexType.Delete)
{
writer.DeleteDocuments(new Term("id", book.Id.ToString()));
}
else if (book.IT == IndexType.Modify)
{
//先删除 再新增
writer.DeleteDocuments(new Term("id", book.Id.ToString()));
document.Add(new Field("id", book.Id.ToString(), Field.Store.YES, Field.Index.NOT_ANALYZED));
document.Add(new Field("MenuId", book.MenuId.ToString(), Field.Store.YES, Field.Index.ANALYZED));
document.Add(new Field("Description", book.Description, Field.Store.YES, Field.Index.ANALYZED,
Field.TermVector.WITH_POSITIONS_OFFSETS));
document.Add(new Field("CreativeHTML", book.CreativeHTML, Field.Store.YES, Field.Index.ANALYZED,
Field.TermVector.WITH_POSITIONS_OFFSETS));
writer.AddDocument(document);
}
}
writer.Close();
directory.Close();
}
/// <summary>
/// 删除Books表信息时 添加删除索引请求至队列
/// </summary>
/// <param name="bid"></param>
public void Del(int bid) {
BookViewMode bvm = new BookViewMode();
bvm.Id = bid;
bvm.IT = IndexType.Delete;
bookQueue.Enqueue(bvm);
}
