/// <summary>
/// 微博分页搜索
/// </summary>
/// <param name="query">搜索条件</param>
/// <returns>符合搜索条件的分页集合</returns>
public PagingDataSet <BarEntity> Search(BarFullTextQuery barQuery)
{
if (string.IsNullOrWhiteSpace(barQuery.Keyword))
{
return(new PagingDataSet <BarEntity>(new List <BarEntity>()));
}
LuceneSearchBuilder searchBuilder = BuildLuceneSearchBuilder(barQuery);
//使用LuceneSearchBuilder构建Lucene需要Query、Filter、Sort
Query query = null;
Filter filter = null;
Sort sort = null;
searchBuilder.BuildQuery(out query, out filter, out sort);
//调用SearchService.Search(),执行搜索
PagingDataSet <Document> searchResult = searchEngine.Search(query, filter, sort, barQuery.PageIndex, barQuery.PageSize);
IEnumerable <Document> docs = searchResult.ToList <Document>();
//解析出搜索结果中的发帖ID
List <long> barthreadIds = new List <long>();
//解析出搜索结果中的回帖ID
List <long> barpostIds = new List <long>();
//获取索引中发帖的标签
Dictionary <long, List <string> > barTags = new Dictionary <long, List <string> >();
//获取帖吧名
Dictionary <long, string> barSectionNames = new Dictionary <long, string>();
//获取索引中回帖的标题
Dictionary <long, string> barPostSubjects = new Dictionary <long, string>();
foreach (Document doc in docs)
{
//是回帖
if (doc.Get(BarIndexDocument.IsPost) == "1")
{
long postId = long.Parse(doc.Get(BarIndexDocument.PostId));
barpostIds.Add(postId);
string subject = doc.Get(BarIndexDocument.Subject);
barPostSubjects[postId] = subject;
}
else
{
long threadId = long.Parse(doc.Get(BarIndexDocument.ThreadId));
barthreadIds.Add(threadId);
//if (!string.IsNullOrWhiteSpace(doc.Get(BarIndexDocument.Tag)))
//{
barTags[threadId] = doc.GetValues(BarIndexDocument.Tag).ToList <string>();
//}
}
long sectionId = long.Parse(doc.Get(BarIndexDocument.SectionId));
if (!barSectionNames.ContainsKey(sectionId))
{
string sectionName = barSectionService.Get(sectionId).Name;
barSectionNames[sectionId] = sectionName;
}
}
//根据发帖ID列表批量查询发帖实例
IEnumerable <BarThread> barThreadList = barThreadService.GetBarThreads(barthreadIds);
//根据回帖ID列表批量查询回帖实例
IEnumerable <BarPost> barPostList = barPostService.GetBarPosts(barpostIds);
//组装帖子列表
List <BarEntity> barEntityList = new List <BarEntity>();
foreach (var barThread in barThreadList)
{
BarEntity barEntity = new BarEntity();
barEntity.SectionId = barThread.SectionId;
barEntity.ThreadId = barThread.ThreadId;
barEntity.PostId = 0;
barEntity.Subject = barThread.Subject;
barEntity.Body = barThread.GetBody();
barEntity.UserId = barThread.UserId;
barEntity.Author = barThread.Author;
if (barTags.Keys.Contains(barEntity.ThreadId))
{
barEntity.Tag = barTags.Count == 0 ? new List <string>() : barTags[barEntity.ThreadId];
}
else
{
barEntity.Tag = new List <string>();
}
if (barSectionNames.Keys.Contains(barEntity.SectionId))
{
barEntity.SectionName = barSectionNames.Count == 0 ? "" : barSectionNames[barEntity.SectionId];
}
else
{
barEntity.SectionName = "";
}
barEntity.DateCreated = barThread.DateCreated;
barEntity.IsPost = false;
barEntityList.Add(barEntity);
}
foreach (var barPost in barPostList)
{
BarEntity barEntity = new BarEntity();
barEntity.SectionId = barPost.SectionId;
barEntity.ThreadId = barPost.ThreadId;
barEntity.PostId = barPost.PostId;
barEntity.Subject = barPostSubjects[barPost.PostId];
barEntity.UserId = barPost.UserId;
barEntity.Body = barPost.GetBody();
barEntity.Author = barPost.Author;
barEntity.Tag = null;
if (barSectionNames.Keys.Contains(barEntity.SectionId))
{
barEntity.SectionName = barSectionNames.Count == 0 ? "" : barSectionNames[barEntity.SectionId];
}
else
{
barEntity.SectionName = "";
}
barEntity.DateCreated = barPost.DateCreated;
barEntity.IsPost = true;
barEntityList.Add(barEntity);
}
//组装分页对象
PagingDataSet <BarEntity> barEntities = new PagingDataSet <BarEntity>(barEntityList.OrderByDescending(b => b.DateCreated))
{
TotalRecords = searchResult.TotalRecords,
PageSize = searchResult.PageSize,
PageIndex = searchResult.PageIndex,
QueryDuration = searchResult.QueryDuration
};
return(barEntities);
}
