com.github.yongchristophertang.engine.web.request.JsonStringConverter.java Source code

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Here is the source code for com.github.yongchristophertang.engine.web.request.JsonStringConverter.java

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/*
 * Copyright 2014-2015 the original author or authors.
 *
 * 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.github.yongchristophertang.engine.web.request;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;

/**
 * Converter for transferring a Java object into a json string without any formats.
 *
 * @author Yong Tang
 * @since 1.0
 */
public class JsonStringConverter implements StringConverter<Object> {
    @Override
    public String convert(Object obj) {
        ObjectMapper mapper = new ObjectMapper();
        try {
            return mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL).writeValueAsString(obj);
        } catch (JsonProcessingException e) {
            e.printStackTrace();
            return null;
        }
    }
}