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package de.otto.flummi;

import static java.util.function.Function.identity;

import java.util.function.BiConsumer;
import java.util.function.BinaryOperator;
import java.util.function.Supplier;
import java.util.stream.Collector;

import com.google.gson.JsonArray;
import com.google.gson.JsonElement;

public class GsonCollectors {
    public static Collector toJsonArray() {
        Supplier supplier = JsonArray::new;
        BiConsumer accumulator = JsonArray::add;
        BinaryOperator combiner = (array1, array2) -> {
            array1.addAll(array2);
            return array1;
        };
        return Collector.of(supplier, accumulator, combiner, identity());
    }
}