2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
20 package org.onap.aai.transforms;
23 import joptsimple.internal.Objects;
25 import java.util.ArrayList;
26 import java.util.HashMap;
27 import java.util.List;
30 public class MapTraverser {
32 private Converter converter;
34 public MapTraverser(Converter converter){
35 this.converter = converter;
38 public Map<String, Object> convertKeys(Map<String, Object> map){
40 Objects.ensureNotNull(map);
42 Map<String, Object> modifiedMap = new HashMap<>();
43 convertKeys(map, modifiedMap);
48 private Map<String, Object> convertKeys(Map<String, Object> original, Map<String, Object> modified){
50 for(Map.Entry<String, Object> entry : original.entrySet()){
51 String key = entry.getKey();
52 key = converter.convert(key);
53 Object value = entry.getValue();
54 if(value instanceof Map){
55 modified.put(key, convertKeys((Map<String, Object>) value, new HashMap<>()));
56 } else if(value instanceof List){
57 modified.put(key, convertKeys((List<Object>) value));
59 modified.put(key, value);
66 public List<Object> convertKeys(List<Object> list){
68 List<Object> modifiedList = new ArrayList<>();
69 if(list != null && !list.isEmpty()){
73 Map<String, Object> map = (Map<String, Object>) o;
74 modifiedList.add(convertKeys(map));
75 } else if(o instanceof List){
76 List<Object> l = (List<Object>) o;
77 modifiedList.add(convertKeys(l));