/// <summary>
/// 资讯分页搜索
/// </summary>
/// <param name="cmsQuery">搜索条件</param>
/// <returns>符合搜索条件的分页集合</returns>
public PagingDataSet <ContentItem> Search(CmsFullTextQuery cmsQuery)
{
if (cmsQuery.ContentFolderId == 0)
{
if (string.IsNullOrWhiteSpace(cmsQuery.Keyword))
{
return(new PagingDataSet <ContentItem>(new List <ContentItem>()));
}
}
LuceneSearchBuilder searchBuilder = BuildLuceneSearchBuilder(cmsQuery);
//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, cmsQuery.PageIndex, cmsQuery.PageSize);
IEnumerable <Document> docs = searchResult.ToList <Document>();
//解析出搜索结果中的资讯ID
List <long> cmsContentItemIds = new List <long>();
//获取索引中资讯的标签
Dictionary <long, IEnumerable <string> > cmsTags = new Dictionary <long, IEnumerable <string> >();
foreach (Document doc in docs)
{
long cmsContentItemId = long.Parse(doc.Get(CmsIndexDocument.ContentItemId));
cmsContentItemIds.Add(cmsContentItemId);
cmsTags[cmsContentItemId] = doc.GetValues(CmsIndexDocument.Tag).ToList <string>();
}
//根据资讯ID列表批量查询资讯实例
IEnumerable <ContentItem> contentItemList = contentItemService.GetContentItems(cmsContentItemIds);
foreach (var contentItem in contentItemList)
{
if (cmsTags.ContainsKey(contentItem.ContentItemId))
{
contentItem.TagNames = cmsTags[contentItem.ContentItemId];
}
}
//组装分页对象
PagingDataSet <ContentItem> contentItems = new PagingDataSet <ContentItem>(contentItemList)
{
TotalRecords = searchResult.TotalRecords,
PageSize = searchResult.PageSize,
PageIndex = searchResult.PageIndex,
QueryDuration = searchResult.QueryDuration
};
return(contentItems);
}
/// <summary>
/// 根据帖吧搜索查询条件构建Lucene查询条件
/// </summary>
/// <param name="Query"></param>
/// <returns></returns>
private LuceneSearchBuilder BuildLuceneSearchBuilder(CmsFullTextQuery cmsQuery)
{
LuceneSearchBuilder searchBuilder = new LuceneSearchBuilder();
//范围
Dictionary <string, BoostLevel> fieldNameAndBoosts = new Dictionary <string, BoostLevel>();
if (!string.IsNullOrEmpty(cmsQuery.Keyword))
{
switch (cmsQuery.Range)
{
case CmsSearchRange.TITLE:
searchBuilder.WithPhrase(CmsIndexDocument.Title, cmsQuery.Keyword, BoostLevel.Hight, false);
break;
case CmsSearchRange.BODY:
searchBuilder.WithPhrase(CmsIndexDocument.Body, cmsQuery.Keyword, BoostLevel.Hight, false);
break;
case CmsSearchRange.AUTHOR:
searchBuilder.WithPhrase(CmsIndexDocument.Author, cmsQuery.Keyword, BoostLevel.Hight, false);
break;
case CmsSearchRange.TAG:
searchBuilder.WithPhrase(CmsIndexDocument.Tag, cmsQuery.Keyword, BoostLevel.Hight, false);
break;
default:
fieldNameAndBoosts.Add(CmsIndexDocument.Title, BoostLevel.Hight);
fieldNameAndBoosts.Add(CmsIndexDocument.Summary, BoostLevel.Hight);
fieldNameAndBoosts.Add(CmsIndexDocument.Tag, BoostLevel.Medium);
fieldNameAndBoosts.Add(CmsIndexDocument.Body, BoostLevel.Medium);
fieldNameAndBoosts.Add(CmsIndexDocument.Author, BoostLevel.Low);
searchBuilder.WithPhrases(fieldNameAndBoosts, cmsQuery.Keyword, BooleanClause.Occur.SHOULD, false);
break;
}
}
//某个栏目
if (cmsQuery.ContentFolderId > 0)
{
searchBuilder.WithField(CmsIndexDocument.ContentFolderId, cmsQuery.ContentFolderId.ToString(), true, BoostLevel.Hight, true);
}
//过滤可以显示的资讯
switch (publiclyAuditStatus)
{
case PubliclyAuditStatus.Again:
case PubliclyAuditStatus.Fail:
case PubliclyAuditStatus.Pending:
case PubliclyAuditStatus.Success:
searchBuilder.WithField(CmsIndexDocument.AuditStatus, ((int)publiclyAuditStatus).ToString(), true, BoostLevel.Hight, true);
break;
case PubliclyAuditStatus.Again_GreaterThanOrEqual:
case PubliclyAuditStatus.Pending_GreaterThanOrEqual:
searchBuilder.WithinRange(CmsIndexDocument.AuditStatus, ((int)publiclyAuditStatus).ToString(), ((int)PubliclyAuditStatus.Success).ToString(), true);
break;
}
return(searchBuilder);
}
/// <summary>
/// 根据帖吧搜索查询条件构建Lucene查询条件
/// </summary>
/// <param name="Query"></param>
/// <returns></returns>
private LuceneSearchBuilder BuildLuceneSearchBuilder(CmsFullTextQuery cmsQuery)
{
LuceneSearchBuilder searchBuilder = new LuceneSearchBuilder();
//范围
Dictionary<string, BoostLevel> fieldNameAndBoosts = new Dictionary<string, BoostLevel>();
if (!string.IsNullOrEmpty(cmsQuery.Keyword))
{
switch (cmsQuery.Range)
{
case CmsSearchRange.TITLE:
searchBuilder.WithPhrase(CmsIndexDocument.Title, cmsQuery.Keyword, BoostLevel.Hight, false);
break;
case CmsSearchRange.BODY:
searchBuilder.WithPhrase(CmsIndexDocument.Body, cmsQuery.Keyword, BoostLevel.Hight, false);
break;
case CmsSearchRange.AUTHOR:
searchBuilder.WithPhrase(CmsIndexDocument.Author, cmsQuery.Keyword, BoostLevel.Hight, false);
break;
case CmsSearchRange.TAG:
searchBuilder.WithPhrase(CmsIndexDocument.Tag, cmsQuery.Keyword, BoostLevel.Hight, false);
break;
default:
fieldNameAndBoosts.Add(CmsIndexDocument.Title, BoostLevel.Hight);
fieldNameAndBoosts.Add(CmsIndexDocument.Summary, BoostLevel.Hight);
fieldNameAndBoosts.Add(CmsIndexDocument.Tag, BoostLevel.Medium);
fieldNameAndBoosts.Add(CmsIndexDocument.Body, BoostLevel.Medium);
fieldNameAndBoosts.Add(CmsIndexDocument.Author, BoostLevel.Low);
searchBuilder.WithPhrases(fieldNameAndBoosts, cmsQuery.Keyword, BooleanClause.Occur.SHOULD, false);
break;
}
}
//某个栏目
if (cmsQuery.ContentFolderId > 0)
{
searchBuilder.WithField(CmsIndexDocument.ContentFolderId, cmsQuery.ContentFolderId.ToString(), true, BoostLevel.Hight, true);
}
//过滤可以显示的资讯
switch (publiclyAuditStatus)
{
case PubliclyAuditStatus.Again:
case PubliclyAuditStatus.Fail:
case PubliclyAuditStatus.Pending:
case PubliclyAuditStatus.Success:
searchBuilder.WithField(CmsIndexDocument.AuditStatus, ((int)publiclyAuditStatus).ToString(), true, BoostLevel.Hight, true);
break;
case PubliclyAuditStatus.Again_GreaterThanOrEqual:
case PubliclyAuditStatus.Pending_GreaterThanOrEqual:
searchBuilder.WithinRange(CmsIndexDocument.AuditStatus, ((int)publiclyAuditStatus).ToString(), ((int)PubliclyAuditStatus.Success).ToString(), true);
break;
}
return searchBuilder;
}
/// <summary>
/// 资讯分页搜索
/// </summary>
/// <param name="cmsQuery">搜索条件</param>
/// <returns>符合搜索条件的分页集合</returns>
public PagingDataSet<ContentItem> Search(CmsFullTextQuery cmsQuery)
{
if (cmsQuery.ContentFolderId == 0)
{
if (string.IsNullOrWhiteSpace(cmsQuery.Keyword))
{
return new PagingDataSet<ContentItem>(new List<ContentItem>());
}
}
LuceneSearchBuilder searchBuilder = BuildLuceneSearchBuilder(cmsQuery);
//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, cmsQuery.PageIndex, cmsQuery.PageSize);
IEnumerable<Document> docs = searchResult.ToList<Document>();
//解析出搜索结果中的资讯ID
List<long> cmsContentItemIds = new List<long>();
//获取索引中资讯的标签
Dictionary<long, IEnumerable<string>> cmsTags = new Dictionary<long, IEnumerable<string>>();
foreach (Document doc in docs)
{
long cmsContentItemId = long.Parse(doc.Get(CmsIndexDocument.ContentItemId));
cmsContentItemIds.Add(cmsContentItemId);
cmsTags[cmsContentItemId] = doc.GetValues(CmsIndexDocument.Tag).ToList<string>();
}
//根据资讯ID列表批量查询资讯实例
IEnumerable<ContentItem> contentItemList = contentItemService.GetContentItems(cmsContentItemIds);
foreach (var contentItem in contentItemList)
{
if (cmsTags.ContainsKey(contentItem.ContentItemId))
{
contentItem.TagNames = cmsTags[contentItem.ContentItemId];
}
}
//组装分页对象
PagingDataSet<ContentItem> contentItems = new PagingDataSet<ContentItem>(contentItemList)
{
TotalRecords = searchResult.TotalRecords,
PageSize = searchResult.PageSize,
PageIndex = searchResult.PageIndex,
QueryDuration = searchResult.QueryDuration
};
return contentItems;
}