Java tutorial
/* * Copyright (c) 2015. Gary Harpaz * * Licensed 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.ppojo.data; import com.google.gson.JsonElement; import com.google.gson.JsonPrimitive; /** * Helper enum for classifying {@link JsonElement} types used in Gson library. */ public enum JsonElementTypes { Unknown, JsonObject, JsonArray, JsonNull, Boolean, Number, String; public static JsonElementTypes getType(JsonElement json) { if (json.isJsonObject()) return JsonElementTypes.JsonObject; if (json.isJsonArray()) return JsonElementTypes.JsonArray; if (json.isJsonNull()) return JsonElementTypes.JsonNull; if (json.isJsonPrimitive()) { JsonPrimitive jsonPrimitive = json.getAsJsonPrimitive(); if (jsonPrimitive.isBoolean()) return JsonElementTypes.Boolean; if (jsonPrimitive.isNumber()) return JsonElementTypes.Number; if (jsonPrimitive.isString()) return JsonElementTypes.String; } return JsonElementTypes.Unknown; } }