コード例 #1
0
 public static Filter reformatFilter(Filter filter, SimpleFeatureType ft) throws Exception {
   FilterFactory2 ff = CommonFactoryFinder.getFilterFactory2();
   if (Filter.INCLUDE.equals(filter) || Filter.EXCLUDE.equals(filter)) {
     return filter;
   }
   for (FeatureTypeRelation rel : ft.getRelations()) {
     if (FeatureTypeRelation.JOIN.equals(rel.getType())) {
       filter = reformatFilter(filter, rel.getForeignFeatureType());
       filter = (Filter) filter.accept(new ValidFilterExtractor(rel), filter);
     }
   }
   filter = (Filter) filter.accept(new SimplifyingFilterVisitor(), null);
   return filter;
 }
コード例 #2
0
 /** Populate the json object with related featues */
 private JSONObject populateWithRelatedFeatures(
     JSONObject j, SimpleFeature feature, SimpleFeatureType ft, ApplicationLayer al, int index)
     throws Exception {
   if (ft.hasRelations()) {
     JSONArray related_featuretypes = new JSONArray();
     for (FeatureTypeRelation rel : ft.getRelations()) {
       boolean isJoin = rel.getType().equals(FeatureTypeRelation.JOIN);
       if (isJoin) {
         FeatureSource foreignFs = rel.getForeignFeatureType().openGeoToolsFeatureSource(TIMEOUT);
         FeatureIterator<SimpleFeature> foreignIt = null;
         try {
           Query foreignQ = new Query(foreignFs.getName().toString());
           // create filter
           Filter filter = createFilter(feature, rel);
           if (filter == null) {
             continue;
           }
           // if join only get 1 feature
           foreignQ.setMaxFeatures(1);
           foreignQ.setFilter(filter);
           // set propertynames
           List<String> propertyNames;
           if (al != null) {
             propertyNames = setPropertyNames(al, foreignQ, rel.getForeignFeatureType(), edit);
           } else {
             propertyNames = new ArrayList<String>();
             for (AttributeDescriptor ad : rel.getForeignFeatureType().getAttributes()) {
               propertyNames.add(ad.getName());
             }
           }
           if (propertyNames.isEmpty()) {
             // if there are no properties to retrieve just get out
             continue;
           }
           // get aliases
           Map<String, String> attributeAliases = new HashMap<String, String>();
           if (!edit) {
             for (AttributeDescriptor ad : rel.getForeignFeatureType().getAttributes()) {
               if (ad.getAlias() != null) {
                 attributeAliases.put(ad.getName(), ad.getAlias());
               }
             }
           }
           // Get Feature and populate JSON object with the values.
           foreignIt = foreignFs.getFeatures(foreignQ).features();
           while (foreignIt.hasNext()) {
             SimpleFeature foreignFeature = foreignIt.next();
             // join it in the same json
             j =
                 toJSONFeature(
                     j,
                     foreignFeature,
                     rel.getForeignFeatureType(),
                     al,
                     propertyNames,
                     attributeAliases,
                     index);
           }
         } finally {
           if (foreignIt != null) {
             foreignIt.close();
           }
           foreignFs.getDataStore().dispose();
         }
       } else {
         Filter filter = createFilter(feature, rel);
         if (filter == null) {
           continue;
         }
         JSONObject related_ft = new JSONObject();
         related_ft.put("filter", CQL.toCQL(filter));
         related_ft.put("id", rel.getForeignFeatureType().getId());
         related_ft.put("foreignFeatureTypeName", rel.getForeignFeatureType().getTypeName());
         related_featuretypes.put(related_ft);
       }
     }
     if (related_featuretypes.length() > 0) {
       j.put("related_featuretypes", related_featuretypes);
     }
   }
   return j;
 }