+++ /dev/null
-package org.apache.lucene.facet.index.categorypolicy;
-
-import org.apache.lucene.facet.taxonomy.TaxonomyReader;
-import org.apache.lucene.facet.taxonomy.TaxonomyWriter;
-
-/**
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * Filter out any "top level" category ordinals. <br> {@link #shouldAdd(int)}.
- *
- * @lucene.experimental
- */
-public class NonTopLevelOrdinalPolicy implements OrdinalPolicy {
-
- /**
- * The taxonomyWriter with which the given ordinals' parent is determined.
- */
- private TaxonomyWriter taxonomyWriter;
-
- /**
- * Constructs a new non-top-level-ordinal-filter. With a given
- * taxonomyWriter.
- *
- */
- public NonTopLevelOrdinalPolicy() {
- this.taxonomyWriter = null;
- }
-
- /**
- * @param taxonomyWriter
- * A relevant taxonomyWriter object, with which ordinals sent to
- * {@link #shouldAdd(int)} are examined.
- */
- public void init(TaxonomyWriter taxonomyWriter) {
- this.taxonomyWriter = taxonomyWriter;
- }
-
- /**
- * Filters out ordinal which are ROOT or who's parent is ROOT. In order to
- * determine if a parent is root, there's a need for
- * {@link TaxonomyWriter#getParent(int)}.
- */
- public boolean shouldAdd(int ordinal) {
- if (ordinal > TaxonomyReader.ROOT_ORDINAL) {
- try {
- if (this.taxonomyWriter.getParent(ordinal) > TaxonomyReader.ROOT_ORDINAL) {
- return true;
- }
- } catch (Exception e) {
- return false;
- }
- }
- return false;
- }
-
-}