ExceptionInfoAdapter.java

package com.alipay.demo.trade.model.hb;


import com.alipay.demo.trade.utils.Utils;
import com.google.gson.JsonElement;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;

import java.lang.reflect.Type;
import java.util.List;

import org.apache.commons.lang.StringUtils;


public class ExceptionInfoAdapter
        implements JsonSerializer<List<ExceptionInfo>> {
    public JsonElement serialize(List<ExceptionInfo> exceptionInfos, Type type, JsonSerializationContext jsonSerializationContext) {

        if (Utils.isListEmpty(exceptionInfos)) {

            return null;

        }


        return new JsonPrimitive(StringUtils.join(exceptionInfos, "|"));

    }

}