com.lzhpo.chatgpt.utils.JsonUtils Maven / Gradle / Ivy
/*
* Copyright 2023 lzhpo
*
* 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 com.lzhpo.chatgpt.utils;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import java.util.List;
import lombok.SneakyThrows;
import lombok.experimental.UtilityClass;
/**
* @author lzhpo
*/
@UtilityClass
public class JsonUtils {
private static ObjectMapper mapper = new ObjectMapper();
static {
mapper.registerModule(new JavaTimeModule());
mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
mapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
}
/**
* Replace the default {@link JsonUtils#mapper}.
*
* @param mapper {@link ObjectMapper}
*/
public static void setMapper(ObjectMapper mapper) {
JsonUtils.mapper = mapper;
}
/**
* Object to json string and format and beautify
*
* @param obj the object for which Json representation is to be created setting for Gson
* @return the pretty json text of object.
*/
@SneakyThrows
public static String toJsonPrettyString(T obj) {
return mapper.writerWithDefaultPrettyPrinter().writeValueAsString(obj);
}
/**
* Parses the specified JSON string to a JsonNode
*
* @param json JSON content to parse to build the JSON tree.
* @return a JsonNode, if valid JSON content found; null if input has no content to bind
*/
@SneakyThrows
public static JsonNode toJsonNode(String json) {
return mapper.readTree(json);
}
/**
* Serializes the specified object to Json text.
*
* @param object the object for which Json representation is to be created setting for Gson
* @return the json text of object.
*/
@SneakyThrows
public static String toJsonString(Object object) {
return mapper.writeValueAsString(object);
}
/**
* Parse the JsonNode into an object of the specified type.
*
* @param jsonNode the JsonNode object
* @param valueType the class of the desired object
* @param the type of the desired object
* @return an object of type T
*/
@SneakyThrows
public static T parse(JsonNode jsonNode, Class valueType) {
return mapper.treeToValue(jsonNode, valueType);
}
/**
* Parse the json string into an object of the specified type.
*
* @param content the json string
* @param valueType the class of the desired object
* @param the type of the desired object
* @return an object of type T
*/
@SneakyThrows
public static T parse(String content, Class valueType) {
return mapper.readValue(content, valueType);
}
/**
* Convert json {@code content} into a collection of required objects
*
* @param content the json string
* @param valueType the class of the desired object
* @param the type of the desired object
* @return List of type T
*/
@SneakyThrows
public static List parseArray(String content, Class valueType) {
return mapper.readValue(content, mapper.getTypeFactory().constructCollectionType(List.class, valueType));
}
}
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