001/**
002 * Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
003 * <p>
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 * <p>
008 * http://www.apache.org/licenses/LICENSE-2.0
009 * <p>
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package com.mybatisflex.core.handler;
017
018import com.fasterxml.jackson.core.JsonProcessingException;
019import com.fasterxml.jackson.databind.ObjectMapper;
020import com.mybatisflex.core.exception.FlexExceptions;
021
022import java.io.IOException;
023
024public class JacksonTypeHandler extends BaseJsonTypeHandler<Object> {
025
026    private static ObjectMapper objectMapper;
027    private final Class<?> propertyType;
028
029    public JacksonTypeHandler(Class<?> propertyType) {
030        this.propertyType = propertyType;
031    }
032
033    @Override
034    protected Object parseJson(String json) {
035        try {
036            return getObjectMapper().readValue(json, propertyType);
037        } catch (IOException e) {
038            throw FlexExceptions.wrap(e, "Can not parseJson by JacksonTypeHandler: " + json);
039        }
040    }
041
042    @Override
043    protected String toJson(Object object) {
044        try {
045            return getObjectMapper().writeValueAsString(object);
046        } catch (JsonProcessingException e) {
047            throw FlexExceptions.wrap(e, "Can not convert object to Json by JacksonTypeHandler: " + object);
048        }
049    }
050
051    public static ObjectMapper getObjectMapper() {
052        if (null == objectMapper) {
053            objectMapper = new ObjectMapper();
054        }
055        return objectMapper;
056    }
057
058    public static void setObjectMapper(ObjectMapper objectMapper) {
059        JacksonTypeHandler.objectMapper = objectMapper;
060    }
061}