/* * Licensed to Elasticsearch under one or more contributor * license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright * ownership. Elasticsearch 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. */ package org.elasticsearch.index.mapper; import java.util.Collection; enum MapperUtils { ; /** Split mapper and its descendants into object and field mappers. */ public static void collect(Mapper mapper, Collection<ObjectMapper> objectMappers, Collection<FieldMapper> fieldMappers) { if (mapper instanceof RootObjectMapper) { // root mapper isn't really an object mapper } else if (mapper instanceof ObjectMapper) { objectMappers.add((ObjectMapper)mapper); } else if (mapper instanceof FieldMapper) { fieldMappers.add((FieldMapper)mapper); } for (Mapper child : mapper) { collect(child, objectMappers, fieldMappers); } } }