| /* |
| * 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.jms.impl; |
| |
| import com.google.gson.Gson; |
| import com.google.gson.JsonArray; |
| import com.google.gson.JsonElement; |
| import com.google.gson.JsonObject; |
| import com.google.gson.JsonParser; |
| import com.google.gson.JsonPrimitive; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| */ |
| public class Json { |
| |
| public static Map<String, Object> toMap(String text) { |
| JsonElement root = new JsonParser().parse(text); |
| return toMapValue(root); |
| } |
| |
| private static <T> T toMapValue(JsonElement element) { |
| if (element.isJsonObject()) { |
| return (T) toMapValue(element.getAsJsonObject()); |
| } else if (element.isJsonArray()) { |
| return (T) toMapValue(element.getAsJsonArray()); |
| } else if (element.isJsonNull()) { |
| return null; |
| } else if (element.isJsonPrimitive()) { |
| return (T) toMapValue(element.getAsJsonPrimitive()); |
| } |
| throw new IllegalArgumentException("Encountered JsonElement that is not an object, array, primitive or null: "+element); |
| } |
| private static <T> T toMapValue(JsonArray array) { |
| List<Object> list = new ArrayList<Object>(); |
| for( JsonElement e : array) { |
| list.add(toMapValue(e)); |
| } |
| return (T) list; |
| } |
| |
| private static <T> T toMapValue(JsonObject obj) { |
| Map<String, Object> m = new HashMap<String, Object>(); |
| for (Map.Entry<String, JsonElement> e : obj.entrySet()) { |
| m.put(e.getKey(), toMapValue(e.getValue())); |
| } |
| return (T) m; |
| } |
| |
| private static <T> T toMapValue(JsonPrimitive p) { |
| if (p.isString()) { |
| return (T) p.getAsString(); |
| } else if (p.isBoolean()) { |
| return (T) ((Boolean)p.getAsBoolean()); |
| } else if (p.isNumber()) { |
| double d = p.getAsDouble(); |
| if (Math.floor(d) == d) { |
| return (T)((Long)p.getAsLong()); |
| } |
| return (T)((Double)d); |
| } else { |
| return null; |
| } |
| } |
| |
| public static String toJson(Map<String, Object> message) { |
| return new Gson().toJson(message); |
| } |
| |
| |
| } |