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/*
 * Copyright 2013 Nicolas Morel
 *
 * 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 org.dominokit.jacksonapt.ser.array;

import org.dominokit.jacksonapt.JsonSerializationContext;
import org.dominokit.jacksonapt.JsonSerializer;
import org.dominokit.jacksonapt.JsonSerializerParameters;
import org.dominokit.jacksonapt.stream.JsonWriter;
import org.dominokit.jacksonapt.utils.Base64Utils;

/**
 * Default {@link org.dominokit.jacksonapt.JsonSerializer} implementation for array of byte.
 *
 * @author Nicolas Morel
 * @version $Id: $Id
 */
public class PrimitiveByteArrayJsonSerializer extends JsonSerializer {

    private static final PrimitiveByteArrayJsonSerializer INSTANCE = new PrimitiveByteArrayJsonSerializer();

    /**
     * getInstance.
     *
     * @return an instance of {@link org.dominokit.jacksonapt.ser.array.PrimitiveByteArrayJsonSerializer}
     */
    public static PrimitiveByteArrayJsonSerializer getInstance() {
        return INSTANCE;
    }

    private PrimitiveByteArrayJsonSerializer() {
    }

    /** {@inheritDoc} */
    @Override
    protected boolean isEmpty(byte[] value) {
        return null == value || value.length == 0;
    }

    /** {@inheritDoc} */
    @Override
    public void doSerialize(JsonWriter writer, byte[] values, JsonSerializationContext ctx, JsonSerializerParameters params) {
        if (!ctx.isWriteEmptyJsonArrays() && values.length == 0) {
            writer.cancelName();
            return;
        }

        writer.unescapeValue(Base64Utils.toBase64(values));
    }
}