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https://issues.apache.org/jira/browse/LUCENENET-448?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Digy resolved LUCENENET-448.
----------------------------
Resolution: Fixed
Hi Jeff,
Your fix is for 2.9.4g branch and I committed it.
(Although I was hard to compare your code with the current code).
Thank you.
> GeoHashFilteredDocIdSet does not work at all
> --------------------------------------------
>
> Key: LUCENENET-448
> URL: https://issues.apache.org/jira/browse/LUCENENET-448
> Project: Lucene.Net
> Issue Type: Bug
> Components: Lucene.Net Contrib
> Affects Versions: Lucene.Net 2.9.4g
> Environment: Windows 7 x64
> Reporter: Jeff Johnson
> Labels: contrib, spatial
> Fix For: Lucene.Net 2.9.4g
>
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> The GeoHashFilteredDocIdSet is assuming the values are always in the cache
> which is wrong. A proposed fix for the method is listed here for
> GeoHashDistanceFilter.cs:
> public GeoHashFilteredDocIdSet(DocIdSet innerSet, string[] geoHashValues,
> Dictionary<string, double> distanceLookupCache, double lat, double lng, int
> docBase, double distance, Dictionary<int, double> distances)
> : base(innerSet , (docid) => /* was: public override Match */
> {
> String geoHash = geoHashValues[docid];
> double[] coords = GeoHashUtils.Decode(geoHash);
> double x = coords[0];
> double y = coords[1];
> double cachedDistance;
> distanceLookupCache.TryGetValue(geoHash, out cachedDistance);
> double d;
> if (cachedDistance > 0)
> {
> d = cachedDistance;
> }
> else
> {
> d =
> DistanceUtils.GetInstance().GetDistanceMi(lat, lng, x, y);
> distanceLookupCache[geoHash] = d;
> }
> if (d < distance)
> {
> distances[docid + docBase] = d;
> return true;
> }
>
> return false;
> })
> {
> _geoHashValues = geoHashValues;
> _distances = distances;
> _distance = distance;
> _docBase = docBase;
> _lng = lng;
> _lat = lat;
> _distanceLookupCache = distanceLookupCache;
> }
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