IEnumerable <object> UserQuery(API.Common.Models.SearchRequest searchRequest)
{
if (searchRequest.KeywordQuery != null)
{
yield return(new
{
wildcard = new
{
name = new
{
boost = 1.1,
value = $"*{searchRequest.KeywordQuery}*"
}
}
});
yield return(new
{
match = new
{
content = new
{
query = searchRequest.KeywordQuery
}
}
});
}
if (searchRequest.NativeQuery != null)
{
yield return new
{
query_string = new
{
query = searchRequest.NativeQuery
}
}
}
;
}
async Task <ISearchResults> OldSearch(
string[] securityIdentifiers,
API.Common.Models.SearchRequest searchRequest)
{
Logger.LogInformation($"Search {searchRequest.FolderIdentifier} \"{searchRequest}\"");
var identifiers = "_all " + string.Join(" ", securityIdentifiers ?? new string[0]);
int FacetLimit = 10;
SearchDescriptor <Document> searchDescriptor = null;
var sortField = searchRequest.Paging.SortField;
searchDescriptor = new SearchDescriptor <Document>()
.Query(q => q
.Bool(b => b
.MinimumShouldMatch(1)
.Filter(
f => DoFolderFiltering(f, searchRequest),
f => DoSecurity(f, securityIdentifiers),
f => DoFacetFiltering(f, searchRequest.Filters)
)
.Should(DoQueries(q, searchRequest))
)
)
.Highlight(h => h
.PreTags("<em>")
.PostTags("</em>")
.Fields(fs => fs
.Field(p => p.Content)
.Type(HighlighterType.Fvh)
.BoundaryMaxScan(50)
.NumberOfFragments(3)
)
)
.From(searchRequest.Paging.PageIndex * searchRequest.Paging.PageSize)
.Size(searchRequest.Paging.PageSize == 0
? 500
: searchRequest.Paging.PageSize)
.Sort(ss => ss
.Field(f =>
{
f.Order(searchRequest.Paging.IsAscending
? SortOrder.Ascending
: SortOrder.Descending);
switch (searchRequest.Paging.SortField)
{
case "name":
f.Field(ff => ff.Name);
break;
default:
f.Field("_score");
f.Descending();
break;
}
return(f);
})
)
.Aggregations(aggs => aggs
.Nested("facet_strings", n => n
.Path(p => p.FacetStrings)
.Aggregations(aa => aa
.Terms("facet_name", t => t
.Field(new Field("facets.name"))
.Aggregations(a2 => a2
.Terms("facet_value", t2 => t2
.Field(new Field("facets.value"))
.Size(FacetLimit)
)
)
)
)
)
)
;
string debugQuery = SerializeNESTObject(searchDescriptor);
Logger.LogDebug($"Search Query: (index: {IndexName})\n {debugQuery}");
var results = await client.SearchAsync <Document>(searchDescriptor);
//Logger.LogDebug($"Raw Results: {SerializeNESTObject(results)}");
var searchResults = new SearchResults
{
Rows = results.Hits.Select(d => new SearchResult
{
FileIdentifier = new FileIdentifier
{
OrganizationKey = d.Source.OrganizationKey,
FolderKey = d.Source.FolderKey,
FileKey = d.Source.FileKey
},
Name = d.Source.Name,
Extension = d.Source.Extension,
MimeType = d.Source.MimeType,
Metadata = d.Source.Metadata,
Created = d.Source.Created,
Modified = d.Source.Modified,
Highlights = d.Highlights.SelectMany(h => h.Value.Highlights).ToArray(),
Fields = d.Source.Fields
}),
TotalMatches = results.Total,
DebugQuery = debugQuery
};
var facetModels = new List <FacetModel>();
if ((results.Aggregations.FirstOrDefault(a => a.Key == "facet_strings")
.Value as SingleBucketAggregate)
?.FirstOrDefault()
.Value is BucketAggregate facets)
{
foreach (var facet in facets.Items.OfType <KeyedBucket <object> >())
{
var model = new FacetModel
{
Name = facet.Key.ToString()
};
var values = new List <FacetValue>();
model.Values = values;
foreach (var container in facet.Values.OfType <BucketAggregate>())
{
foreach (var facetValue in container.Items.OfType <KeyedBucket <object> >())
{
values.Add(new FacetValue
{
Value = facetValue.Key.ToString(),
Count = facetValue.DocCount
});
}
if (model.Values.Any() && container.SumOtherDocCount == 0)
{
if (model.Values.Count() == 1 &&
model.Values.First().Count == results.Total)
{
// this is a single facet describing all
// results. it doesn't further differentiate the resultset.
// skip it
}
else
{
facetModels.Add(model);
}
}
}
}
}
searchResults.Facets = facetModels;
return(searchResults);
}
async Task <ISearchResults> ISearch.Search(
string[] securityIdentifiers,
API.Common.Models.SearchRequest searchRequest)
{
var query = new
{
from = searchRequest.Paging.PageIndex * searchRequest.Paging.PageSize,
size = searchRequest.Paging.PageSize,
sort = new[]
{
new { _score = new { order = "desc" } }
},
highlight = new
{
pre_tags = new[] { "<em>" },
post_tags = new[] { "</em>" },
fields = new
{
content = new
{
number_of_fragments = 3,
boundary_max_scan = 50,
type = "fvh"
}
}
},
aggs = new
{
facet_strings = new
{
nested = new { path = "facets" },
aggs = new
{
facet_name = new
{
terms = new { field = "facets.name" },
aggs = new
{
facet_value = new { terms = new { field = "facets.value", size = 10 } }
}
}
}
}
},
_source = new[] {
"uniqueKey",
"indexed",
"organizationKey",
"folderKey",
"fileKey",
"type",
"name",
"extension",
"mimeType",
"created",
"modified",
"mimeType",
"fields",
"metadata",
"facets"
},
query = new
{
@bool = new
{
should = UserQuery(searchRequest),
filter = OrganizationAndFolderFilter(searchRequest.OrganizationIdentifier, searchRequest.FolderIdentifier)
.Append(SecurityFilters(securityIdentifiers))
.Append(NestedFacetFilters(searchRequest)),
minimum_should_match = 1
}
}
};
var queryJSON = JsonConvert.SerializeObject(query);
var searchResponse = await lowLevelClient.SearchAsync <StringResponse>(IndexName, PostData.String(queryJSON));
var deserialized = JsonConvert.DeserializeObject <SearchResposne>(searchResponse.Body);
var searchResults = new SearchResults
{
Rows = deserialized.Hits.Hits.Select(d => new SearchResult
{
FileIdentifier = new FileIdentifier
{
OrganizationKey = d._Source.OrganizationKey,
FolderKey = d._Source.FolderKey,
FileKey = d._Source.FileKey
},
Name = d._Source.Name,
Extension = d._Source.Extension,
MimeType = d._Source.MimeType,
Metadata = d._Source.Metadata,
Created = d._Source.Created,
Modified = d._Source.Modified,
Highlights = d.Highlight?.SelectMany(h => h.Value).ToArray(),
Fields = d._Source.Fields.Where(f => !String.IsNullOrWhiteSpace(f.Value)).ToDictionary(f => f.Key, f => f.Value)
}),
TotalMatches = deserialized.Hits.Total,
DebugQuery = queryJSON
};
var facetModels = new List <FacetModel>();
foreach (var facet in deserialized.Aggregations.Facet_Strings.Facet_Name.Buckets)
{
var model = new FacetModel
{
Name = facet.Key.ToString()
};
var values = new List <FacetValue>();
model.Values = values;
foreach (var facetValue in facet.Facet_Value.Buckets)
{
values.Add(new FacetValue
{
Value = facetValue.Key.ToString(),
Count = facetValue.Doc_Count
});
}
if (model.Values.Any() && facet.Facet_Value.Sum_Other_Doc_Count == 0)
{
if (model.Values.Count() == 1 &&
model.Values.First().Count == deserialized.Hits.Total)
{
// this is a single facet describing all
// results. it doesn't further differentiate the resultset.
// skip it
}
else
{
facetModels.Add(model);
}
}
}
searchResults.Facets = facetModels;
return(searchResults);
}