/// <summary>
/// Create a spatial filter parameter
/// </summary>
/// <param name="functionType">Function used in the spatial filter</param>
/// <param name="expression">Expression used to find the property name</param>
/// <param name="centerPoint">Center point to spatial filter</param>
/// <param name="distance">Distance from the center point</param>
public Spatial(SolrSpatialFunctionType functionType, Expression <Func <TDocument, object> > expression, GeoCoordinate centerPoint, decimal distance)
{
Checker.IsNull(expression);
this.FunctionType = functionType;
this.Expression = expression;
this.CenterPoint = centerPoint;
this.Distance = distance;
}
/// <summary>
/// Get spatial formule
/// </summary>
/// <param name="functionType">Spatial function to use</param>
/// <param name="fieldName">Field name</param>
/// <param name="centerPoint">Center point information</param>
/// <param name="distance">Distance</param>
/// <returns></returns>
public static string GetSolrSpatialFormule(SolrSpatialFunctionType functionType, string fieldName, GeoCoordinate centerPoint, decimal distance)
{
return(string.Format(
"{{!{0} sfield={1} pt={2} d={3}}}",
functionType.ToString().ToLower(),
fieldName,
$"{centerPoint.Latitude.ToString("G", CultureInfo.InvariantCulture)},{centerPoint.Longitude.ToString("G", CultureInfo.InvariantCulture)}",
distance.ToString("G", CultureInfo.InvariantCulture)));
}
/// <summary>
/// Configure current instance
/// </summary>
/// <param name="aliasName">Name of the alias added in the query</param>
/// <param name="functionType">Function used in the spatial filter</param>
/// <param name="expression">Expression used to find the property name</param>
/// <param name="centerPoint">Center point to spatial filter</param>
/// <param name="distance">Distance from the center point</param>
/// <param name="sortType">Sort type of the result of the facet</param>
/// <param name="excludes">List of tags to exclude in facet calculation</param>
public IFacetSpatialParameter <TDocument> Configure(string aliasName, SolrSpatialFunctionType functionType, Expression <Func <TDocument, object> > expression, GeoCoordinate centerPoint, decimal distance, FacetSortType?sortType = null, params string[] excludes)
{
this.AliasName = aliasName;
this.FunctionType = functionType;
this.Expression = expression;
this.CenterPoint = centerPoint;
this.Distance = distance;
this.SortType = sortType;
this.Excludes = excludes;
return(this);
}
ISpatialFilterParameter <TDocument> ISearchParameterBuilder <TDocument> .SpatialFilter(Expression <Func <TDocument, object> > expression, SolrSpatialFunctionType functionType, GeoCoordinate centerPoint, decimal distance)
{
throw new NotImplementedException();
}
/// <summary>
/// Create a query field parameter
/// </summary>
/// <param name="expression">Expression used to find the property name</param>
/// <param name="functionType">Function used in the spatial filter</param>
/// <param name="centerPoint">Center point to spatial filter</param>
/// <param name="distance">Distance from the center point</param>
public ISpatialFilterParameter <TDocument> SpatialFilter(Expression <Func <TDocument, object> > expression, SolrSpatialFunctionType functionType, GeoCoordinate centerPoint, decimal distance)
{
return(this
.Engine
.GetService <ISpatialFilterParameter <TDocument> >()
.Configure(expression, functionType, centerPoint, distance));
}
/// <summary>
/// Configure current instance
/// </summary>
/// <param name="expression">Expression used to find the property name</param>
/// <param name="functionType">Function used in the spatial filter</param>
/// <param name="centerPoint">Center point to spatial filter</param>
/// <param name="distance">Distance from the center point</param>
public ISpatialFilterParameter <TDocument> Configure(Expression <Func <TDocument, object> > expression, SolrSpatialFunctionType functionType, GeoCoordinate centerPoint, decimal distance)
{
Checker.IsNull(expression);
this.FunctionType = functionType;
this.Expression = expression;
this.CenterPoint = centerPoint;
this.Distance = distance;
return(this);
}
/// <summary>
/// Create a query field parameter
/// </summary>
/// <param name="expression">Expression used to find the property name</param>
/// <param name="functionType">Function used in the spatial filter</param>
/// <param name="centerPoint">Center point to spatial filter</param>
/// <param name="distance">Distance from the center point</param>
public static ISolrSearch <TDocument> SpatialFilter <TDocument>(this ISolrSearch <TDocument> search, Expression <Func <TDocument, object> > expression, SolrSpatialFunctionType functionType, GeoCoordinate centerPoint, decimal distance)
where TDocument : IDocument
{
search.Add(search.GetBuilder().SpatialFilter(expression, functionType, centerPoint, distance));
return(search);
}
