107 lines
3.7 KiB
Java
107 lines
3.7 KiB
Java
/*
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* Copyright 2015 Synced Synapse. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.xbmc.kore.utils;
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import com.fasterxml.jackson.databind.JsonNode;
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import com.fasterxml.jackson.databind.node.ArrayNode;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* Misc util methods for use with JSON
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*/
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public class JsonUtils {
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public static String stringFromJsonNode(JsonNode node, String key) {
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// Duplicate code for performance resons
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if (node == null) return null;
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JsonNode value = node.get(key);
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if (value == null) return null;
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return value.textValue();
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}
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public static String stringFromJsonNode(JsonNode node, String key, String defaultValue) {
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if (node == null) return defaultValue;
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JsonNode value = node.get(key);
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if (value == null) return defaultValue;
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return value.textValue();
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}
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public static double doubleFromJsonNode(JsonNode node, String key) {
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return doubleFromJsonNode(node, key, 0);
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}
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public static double doubleFromJsonNode(JsonNode node, String key, double defaultValue) {
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if (node == null) return defaultValue;
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JsonNode value = node.get(key);
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if (value == null) return defaultValue;
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return value.asDouble();
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}
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public static int intFromJsonNode(JsonNode node, String key) {
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// Duplicate code for performance resons
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if (node == null) return 0;
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JsonNode value = node.get(key);
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if (value == null) return 0;
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return value.asInt();
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}
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public static int intFromJsonNode(JsonNode node, String key, int defaultValue) {
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if (node == null) return defaultValue;
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JsonNode value = node.get(key);
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if (value == null) return defaultValue;
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return value.asInt();
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}
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public static boolean booleanFromJsonNode(JsonNode node, String key) {
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return booleanFromJsonNode(node, key, false);
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}
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public static boolean booleanFromJsonNode(JsonNode node, String key, boolean defaultValue) {
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if (node == null) return defaultValue;
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JsonNode value = node.get(key);
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if (value == null) return defaultValue;
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return value.asBoolean();
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}
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public static List<String> stringListFromJsonNode(JsonNode node, String key) {
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if (node == null) return new ArrayList<String>(0);
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JsonNode value = node.get(key);
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if (value == null) return new ArrayList<String>(0);
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ArrayNode arrayNode = (ArrayNode)value;
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ArrayList<String> result = new ArrayList<String>(arrayNode.size());
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for (JsonNode innerNode : arrayNode) {
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result.add(innerNode.textValue());
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}
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return result;
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}
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public static List<Integer> integerListFromJsonNode(JsonNode node, String key) {
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if (node == null) return new ArrayList<Integer>(0);
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JsonNode value = node.get(key);
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if (value == null) return new ArrayList<Integer>(0);
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ArrayNode arrayNode = (ArrayNode)value;
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ArrayList<Integer> result = new ArrayList<Integer>(arrayNode.size());
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for (JsonNode innerNode : arrayNode) {
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result.add(innerNode.asInt());
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}
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return result;
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}
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}
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