/// <summary>
/// Constructor.
/// </summary>
/// <exception cref="ArgumentNullException"><paramref name="strategy"/> or <paramref name="from"/> is <c>null</c>.</exception>
public DistanceValueSource(PointVectorStrategy strategy, IPoint from, double multiplier)
{
// LUCENENET specific - added guard clauses
this.strategy = strategy ?? throw new ArgumentNullException(nameof(strategy));
this.from = from ?? throw new ArgumentNullException(nameof(from));
this.multiplier = multiplier;
}
public DistanceReverseValueSource(PointVectorStrategy strategy, Point from, double max)
: base(strategy, from)
{
this.strategy = strategy;
this.from = from;
this.max = max;
}
private List<IFieldable> AddPoint(Item item)
{
List<IFieldable> pointFields = new List<IFieldable>();
var setting = spatialConfigurations.LocationSettings.Where(i => i.TemplateId.Equals(item.TemplateID)).FirstOrDefault();
if (setting == null)
return pointFields;
SpatialContext ctx = SpatialContext.GEO;
SpatialPrefixTree grid = new GeohashPrefixTree(ctx, 11);
var strategy = new PointVectorStrategy(ctx, Sitecore.ContentSearch.Spatial.Common.Constants.LocationFieldName);
double lng = 0;
double lat = 0;
bool parsedLat = false;
bool parsedLong = false;
if (!string.IsNullOrEmpty(item[setting.LatitudeField]))
{
parsedLat = Double.TryParse(item[setting.LatitudeField], out lat);
}
if (!string.IsNullOrEmpty(item[setting.LongitudeField]))
{
parsedLong = Double.TryParse(item[setting.LongitudeField], out lng);
}
if (!parsedLat && !parsedLong)
return pointFields;
pointFields = AddPoint( lng, lat);
return pointFields;
}
protected virtual Lucene.Net.Search.Query VisitWithinRadius(WithinRadiusNode node, LuceneQueryMapperState mappingState)
{
SpatialContext ctx = SpatialContext.GEO;
var strategy = new PointVectorStrategy(ctx, Sitecore.ContentSearch.Spatial.Common.Constants.LocationFieldName);
if (node.Latitude is double && node.Longitude is double && node.Radius is double)
{
var distance = DistanceUtils.Dist2Degrees((double)node.Radius, DistanceUtils.EARTH_MEAN_RADIUS_MI);
Circle circle = ctx.MakeCircle((double)node.Longitude,(double)node.Latitude, distance);
var spatialArgs = new SpatialArgs(SpatialOperation.IsWithin, circle);
var dq = strategy.MakeQuery(spatialArgs);
DistanceReverseValueSource valueSource = new DistanceReverseValueSource(strategy, circle.GetCenter(), distance);
ValueSourceFilter vsf = new ValueSourceFilter(new QueryWrapperFilter(dq), valueSource, 0, distance);
var filteredSpatial = new FilteredQuery(new MatchAllDocsQuery(), vsf);
mappingState.FilterQuery = filteredSpatial;
Lucene.Net.Search.Query spatialRankingQuery = new FunctionQuery(valueSource);
Random r = new Random(DateTime.Now.Millisecond);
var randomNumber = r.Next(10000101,11000101);
Lucene.Net.Search.Query dummyQuery = Lucene.Net.Search.NumericRangeQuery.NewIntRange("__smallcreateddate", randomNumber, Int32.Parse(DateTime.Now.ToString("yyyyMMdd")), true, true);
BooleanQuery bq = new BooleanQuery();
bq.Add(filteredSpatial, Occur.MUST);
bq.Add(spatialRankingQuery, Occur.MUST);
bq.Add(dummyQuery, Occur.SHOULD);
return bq;
}
throw new NotSupportedException("Wrong parameters type, Radius, latitude and longitude must be of type double");
}
public IEnumerable<Param> ParamsProvider()
{
var ctorArgs = new List<Param>();
SpatialContext ctx = SpatialContext.GEO;
SpatialPrefixTree grid = new GeohashPrefixTree(ctx, 12);
SpatialStrategy strategy = new RecursivePrefixTreeStrategy(grid, "recursive_geohash");
ctorArgs.Add(new Param(strategy));
grid = new QuadPrefixTree(ctx, 25);
strategy = new RecursivePrefixTreeStrategy(grid, "recursive_quad");
ctorArgs.Add(new Param(strategy));
grid = new GeohashPrefixTree(ctx, 12);
strategy = new TermQueryPrefixTreeStrategy(grid, "termquery_geohash");
ctorArgs.Add(new Param(strategy));
strategy = new PointVectorStrategy(ctx, "pointvector");
ctorArgs.Add(new Param(strategy));
return ctorArgs;
}
//@ParametersFactory
public static IList<Object[]> Parameters()
{
List<Object[]> ctorArgs = new List<object[]>();
SpatialContext ctx = SpatialContext.GEO;
SpatialPrefixTree grid;
SpatialStrategy strategy;
grid = new QuadPrefixTree(ctx, 25);
strategy = new RecursivePrefixTreeStrategy(grid, "recursive_quad");
ctorArgs.Add(new Object[] { new Param(strategy) });
grid = new GeohashPrefixTree(ctx, 12);
strategy = new TermQueryPrefixTreeStrategy(grid, "termquery_geohash");
ctorArgs.Add(new Object[] { new Param(strategy) });
strategy = new PointVectorStrategy(ctx, "pointvector");
ctorArgs.Add(new Object[] { new Param(strategy) });
strategy = new SerializedDVStrategy(ctx, "serialized");
ctorArgs.Add(new Object[] { new Param(strategy) });
return ctorArgs;
}
/// <summary>
/// Constructor.
/// </summary>
public DistanceValueSource(PointVectorStrategy strategy, IPoint from, double multiplier)
{
this.strategy = strategy;
this.from = from;
this.multiplier = multiplier;
}
/// <summary>
/// Constructor.
/// </summary>
public DistanceValueSource(PointVectorStrategy strategy, IPoint from, double multiplier)
{
this.strategy = strategy;
this.from = from;
this.multiplier = multiplier;
}
public DistanceValueSource(PointVectorStrategy strategy, Point from)
{
this.strategy = strategy;
this.from = from;
}
public DistanceValueSource(PointVectorStrategy strategy, Point from)
{
this.strategy = strategy;
this.from = from;
}
private static List<IFieldable> AddPoint(double lng, double lat)
{
SpatialContext ctx = SpatialContext.GEO;
var strategy = new PointVectorStrategy(ctx, Sitecore.ContentSearch.Spatial.Common.Constants.LocationFieldName);//var strategy = new PrefixTreeStrategy(ctx, Sitecore.ContentSearch.Spatial.Common.Constants.LocationFieldName);
List<IFieldable> pointFields = new List<IFieldable>();
Point shape = ctx.MakePoint(lng, lat);
foreach (var f in strategy.CreateIndexableFields(shape))
{
if (f != null)
{
pointFields.Add(f);
}
}
return pointFields;
}
