/// <summary>
/// 更新索引
/// </summary>
/// <param name="journals">待更新的日志集合</param>
public void Update(IEnumerable <Journal> journals)
{
IEnumerable <Document> docs = JournalIndexDocument.Convert(journals);
IEnumerable <string> blogThreadIds = journals.Select(n => n.id.ToString());
searchEngine.Update(docs, blogThreadIds, JournalIndexDocument.id);
}
/// <summary>
/// 重建索引
/// </summary>
public void RebuildIndex()
{
//pageSize参数决定了每次批量取多少条数据进行索引。要注意的是，如果是分布式搜索，
//客户端会将这部分数据通过WCF传递给服务器端，而WCF默认的最大传输数据量是65535B，
//pageSize较大时这个设置显然是不够用的，WCF会报400错误；系统现在将最大传输量放宽了，
//但仍要注意一次不要传输过多，如遇异常，可适当调小pageSize的值
int pageSize = 1000;
int pageIndex = 1;
long totalRecords = 0;
bool isBeginning = true;
bool isEndding = false;
do
{
//分页获取帖子列表
PagingDataSet <Journal> journals = journalService.Gets(pageIndex, pageSize, "id");
totalRecords = journals.TotalRecords;
isEndding = (pageSize * pageIndex < totalRecords) ? false : true;
//重建索引
List <Journal> journalList = journals.ToList <Journal>();
IEnumerable <Document> docs = JournalIndexDocument.Convert(journalList);
searchEngine.RebuildIndex(docs, isBeginning, isEndding);
isBeginning = false;
pageIndex++;
}while (!isEndding);
}
/// <summary>
/// 更新索引
/// </summary>
/// <param name="journal">待更新的日志</param>
public void Update(Journal journal)
{
Document doc = JournalIndexDocument.Convert(journal);
searchEngine.Update(doc, journal.id.ToString(), JournalIndexDocument.id);
}
/// <summary>
/// 添加索引
/// </summary>
/// <param name="blogThreads">待添加的日志</param>
public void Insert(IEnumerable <Journal> journals)
{
IEnumerable <Document> docs = JournalIndexDocument.Convert(journals);
searchEngine.Insert(docs);
}