private void ProcessFacetFieldBuckets(string root, IFacetParameter <TDocument> facetParameter, string facetName, IFacetItem facetItem)
{
this._jsonReader.Read();// Starts array
while (this._jsonReader.Path.StartsWith($"{root}.{facetName}.buckets["))
{
var initialPath = this._jsonReader.Path;
this._jsonReader.Read();// "val" property
var key = this._jsonReader.ReadAsString();
this._jsonReader.Read();// "count" property
var count = this._jsonReader.ReadAsInt32();
var value = new FacetItemFieldValue
{
Key = key,
Quantity = (long)count
};
// Go to next token to verify subfacet
this._jsonReader.Read();
// Subfacets
if (this._jsonReader.TokenType != JsonToken.EndObject)
{
this.GetFacetItems(
initialPath,
facetParameter.Facets,
out var facetItems);
value.Facets = facetItems;
}
((List <FacetItemFieldValue>)((FacetItemField)facetItem).Values).Add(value);
// Try closes bucket object
while (this._jsonReader.TokenType != JsonToken.EndObject)
{
this._jsonReader.Read();
}
this._jsonReader.Read();// Starts next bucket object
}
}
/// <summary>
/// Create a facet field parameter
/// </summary>
/// <param name="facetParameter">Facet parameter</param>
/// <param name="fieldExpression">Expression used to find field name</param>
/// <param name="instance">Instance of facet ready to configure</param>
/// <returns>Document search engine</returns>
public static IFacetFieldParameter <TDocument> FacetField <TDocument>(this IFacetParameter <TDocument> facetParameter, Expression <Func <TDocument, object> > fieldExpression, Action <IFacetFieldParameter <TDocument> > instance = null)
where TDocument : Document
{
Checker.IsNull(fieldExpression);
var subFacetParameter = facetParameter.ServiceProvider.GetService <IFacetFieldParameter <TDocument> >();
subFacetParameter.FieldExpression(fieldExpression);
instance?.Invoke(subFacetParameter);
if (facetParameter.Facets == null)
{
facetParameter.Facets = new List <IFacetParameter <TDocument> >();
}
facetParameter.Facets.Add(subFacetParameter);
return(subFacetParameter);
}
/// <summary>
/// Create a facet range parameter
/// </summary>
/// <param name="facetParameter">Facet parameter</param>
/// <param name="aliasName">Name of alias added in query</param>
/// <param name="fieldExpression">Expression used to find field name</param>
/// <param name="gap">Size of each range bucket to make facet</param>
/// <param name="start">Lower bound to make facet</param>
/// <param name="end">Upper bound to make facet</param>
/// <param name="instance">Instance of parameter ready to configure</param>
/// <returns>Document search engine</returns>
public static IFacetRangeParameter <TDocument> FacetRange <TDocument>(this IFacetParameter <TDocument> facetParameter, string aliasName, Expression <Func <TDocument, object> > fieldExpression, string gap, string start, string end, Action <IFacetRangeParameter <TDocument> > instance = null)
where TDocument : Document
{
var subFacetParameter = facetParameter.ServiceProvider.GetService <IFacetRangeParameter <TDocument> >();
subFacetParameter.AliasName(aliasName);
subFacetParameter.FieldExpression(fieldExpression);
subFacetParameter.Gap(gap);
subFacetParameter.Start(start);
subFacetParameter.End(end);
instance?.Invoke(subFacetParameter);
if (facetParameter.Facets == null)
{
facetParameter.Facets = new List <IFacetParameter <TDocument> >();
}
facetParameter.Facets.Add(subFacetParameter);
return(subFacetParameter);
}
/// <summary>
/// Create a facet query parameter
/// </summary>
/// <param name="facetParameter">Facet parameter</param>
/// <param name="aliasName">Name of alias added in query</param>
/// <param name="query">Query used to make facet</param>
/// <param name="instance">Instance of facet ready to configure</param>
/// <returns>Document search engine</returns>
public static IFacetQueryParameter <TDocument> FacetQuery <TDocument>(this IFacetParameter <TDocument> facetParameter, string aliasName, Action <SearchQuery <TDocument> > query, Action <IFacetQueryParameter <TDocument> > instance = null)
where TDocument : Document
{
Checker.IsNull(query);
var subFacetParameter = facetParameter.ServiceProvider.GetService <IFacetQueryParameter <TDocument> >();
subFacetParameter.AliasName(aliasName);
var search = facetParameter.ServiceProvider.GetService <SearchQuery <TDocument> >();
query.Invoke(search);
subFacetParameter.Query(search);
instance?.Invoke(subFacetParameter);
if (facetParameter.Facets == null)
{
facetParameter.Facets = new List <IFacetParameter <TDocument> >();
}
facetParameter.Facets.Add(subFacetParameter);
return(subFacetParameter);
}
