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/*
 * The MIT License
 *
 * Copyright 2016 Jong Soft.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.jongsoft.highchart.serializer;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;

import java.io.IOException;
import java.util.List;

/**
 * 
 *  The ListSerializer will verify if any implementation of {@link List} is null or empty. If either is
 *  true then the item will not be added to the JSON.
 * 
 * 
 *  The empty check is done by calling {@link List#isEmpty()}
 * 
 */
public class ListSerializer extends JsonSerializer> {

    @Override
    public void serialize(List value, JsonGenerator gen, SerializerProvider serializers) throws IOException, JsonProcessingException {
        if (!value.isEmpty()) {
            gen.writeObject(value.toArray());
        } else {
            gen.writeNull();
        }
    }

    @Override
    public boolean isEmpty(SerializerProvider provider, List value) {
        return value == null || value.isEmpty();
    }

    @Override
    @SuppressWarnings("unchecked")
    public Class> handledType() {
        return (Class) List.class;
    }
    
}