public FeatureCollection getFeatures(
org.deegree.protocol.wms.ops.GetFeatureInfo gfi, List<String> headers) throws OWSException {
List<LayerQuery> queries = prepareGetFeatures(gfi);
List<LayerData> list = new ArrayList<LayerData>();
double scale =
calcScaleWMS130(
gfi.getWidth(),
gfi.getHeight(),
gfi.getEnvelope(),
gfi.getCoordinateSystem(),
DEFAULT_PIXEL_SIZE);
ListIterator<LayerQuery> queryIter = queries.listIterator();
for (LayerRef n : gfi.getQueryLayers()) {
LayerQuery query = queryIter.next();
for (org.deegree.layer.Layer l : Themes.getAllLayers(themeMap.get(n.getName()))) {
if (l.getMetadata().getScaleDenominators().first > scale
|| l.getMetadata().getScaleDenominators().second < scale) {
continue;
}
if (!l.getMetadata().isQueryable()) {
continue;
}
list.add(l.infoQuery(query, headers));
}
}
List<Feature> feats = new ArrayList<Feature>(gfi.getFeatureCount());
for (LayerData d : list) {
FeatureCollection col = d.info();
if (col != null) {
feats.addAll(col);
}
}
feats = Features.clearDuplicates(feats);
if (feats.size() > gfi.getFeatureCount()) {
feats = feats.subList(0, gfi.getFeatureCount());
}
GenericFeatureCollection col = new GenericFeatureCollection();
col.addAll(feats);
return col;
}
private List<LayerQuery> prepareGetFeatures(org.deegree.protocol.wms.ops.GetFeatureInfo gfi) {
List<LayerQuery> queries = new ArrayList<LayerQuery>();
Iterator<LayerRef> layerItr = gfi.getQueryLayers().iterator();
Iterator<StyleRef> styleItr = gfi.getStyles().iterator();
List<OperatorFilter> filters = gfi.getFilters();
Iterator<OperatorFilter> filterItr = filters == null ? null : filters.iterator();
while (layerItr.hasNext()) {
LayerRef lr = layerItr.next();
StyleRef sr = styleItr.next();
OperatorFilter f = filterItr == null ? null : filterItr.next();
final int layerRadius = defaultLayerOptions.getFeatureInfoRadius();
LayerQuery query =
new LayerQuery(
gfi.getEnvelope(),
gfi.getWidth(),
gfi.getHeight(),
gfi.getX(),
gfi.getY(),
gfi.getFeatureCount(),
f,
sr,
gfi.getParameterMap(),
gfi.getDimensions(),
new MapOptionsMaps(),
gfi.getEnvelope(),
layerRadius);
queries.add(query);
}
return queries;
}
