| /* |
| * 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. |
| */ |
| package org.apache.sling.nosql.generic.adapter; |
| |
| import java.lang.reflect.Array; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.commons.lang3.ArrayUtils; |
| |
| /** |
| * Transforms NoSqlData maps to a valid form for couchbase JSON document. |
| * All arrays have to be transformed to lists. |
| */ |
| final class MapConverter { |
| |
| private MapConverter() { |
| // static methods only |
| } |
| |
| /** |
| * @param map Map with multi-valued arrays |
| * @return Map with multi-valued lists |
| */ |
| public static Map<String, Object> mapArrayToList(Map<String, Object> map) { |
| for (Map.Entry<String, Object> entry : map.entrySet()) { |
| if (entry.getValue().getClass().isArray()) { |
| Class componentType = entry.getValue().getClass().getComponentType(); |
| if (componentType == int.class) { |
| entry.setValue(Arrays.asList(ArrayUtils.toObject((int[]) entry.getValue()))); |
| } |
| else if (componentType == long.class) { |
| entry.setValue(Arrays.asList(ArrayUtils.toObject((long[]) entry.getValue()))); |
| } |
| else if (componentType == double.class) { |
| entry.setValue(Arrays.asList(ArrayUtils.toObject((double[]) entry.getValue()))); |
| } |
| else if (componentType == boolean.class) { |
| entry.setValue(Arrays.asList(ArrayUtils.toObject((boolean[]) entry.getValue()))); |
| } |
| else { |
| entry.setValue(Arrays.asList((Object[]) entry.getValue())); |
| } |
| } |
| } |
| return map; |
| } |
| |
| /** |
| * @param map Map with multi-valued lists |
| * @return Map with multi-valued arrays |
| */ |
| @SuppressWarnings("unchecked") |
| public static Map<String, Object> mapListToArray(Map<String, Object> map) { |
| for (Map.Entry<String, Object> entry : map.entrySet()) { |
| if (entry.getValue() instanceof List) { |
| List list = (List) entry.getValue(); |
| if (list.size() == 0) { |
| entry.setValue(null); |
| } |
| else { |
| Class type = list.get(0).getClass(); |
| entry.setValue(list.toArray((Object[]) Array.newInstance(type, list.size()))); |
| } |
| } |
| } |
| return map; |
| } |
| |
| } |