org.dominokit.jacksonapt.deser.array.PrimitiveByteArrayJsonDeserializer Maven / Gradle / Ivy

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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.deser.array;

import java.util.List;
import org.dominokit.jacksonapt.JsonDeserializationContext;
import org.dominokit.jacksonapt.JsonDeserializerParameters;
import org.dominokit.jacksonapt.deser.BaseNumberJsonDeserializer;
import org.dominokit.jacksonapt.stream.JsonReader;
import org.dominokit.jacksonapt.stream.JsonToken;
import org.dominokit.jacksonapt.utils.Base64Utils;

/** Default {@link org.dominokit.jacksonapt.JsonDeserializer} implementation for array of byte. */
public class PrimitiveByteArrayJsonDeserializer extends AbstractArrayJsonDeserializer {

  private static final PrimitiveByteArrayJsonDeserializer INSTANCE =
      new PrimitiveByteArrayJsonDeserializer();

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

  private PrimitiveByteArrayJsonDeserializer() {}

  /** {@inheritDoc} */
  @Override
  public byte[] doDeserializeArray(
      JsonReader reader, JsonDeserializationContext ctx, JsonDeserializerParameters params) {
    List list =
        deserializeIntoList(
            reader, ctx, BaseNumberJsonDeserializer.ByteJsonDeserializer.getInstance(), params);

    byte[] result = new byte[list.size()];
    int i = 0;
    for (Byte value : list) {
      if (null != value) {
        result[i] = value;
      }
      i++;
    }
    return result;
  }

  /** {@inheritDoc} */
  @Override
  protected byte[] doDeserializeNonArray(
      JsonReader reader, JsonDeserializationContext ctx, JsonDeserializerParameters params) {
    if (JsonToken.STRING == reader.peek()) {
      return Base64Utils.fromBase64(reader.nextString());
    } else if (ctx.isAcceptSingleValueAsArray()) {
      return doDeserializeSingleArray(reader, ctx, params);
    } else {
      throw ctx.traceError(
          "Cannot deserialize a byte[] out of " + reader.peek() + " token", reader);
    }
  }

  /** {@inheritDoc} */
  @Override
  protected byte[] doDeserializeSingleArray(
      JsonReader reader, JsonDeserializationContext ctx, JsonDeserializerParameters params) {
    return new byte[] {
      BaseNumberJsonDeserializer.ByteJsonDeserializer.getInstance().deserialize(reader, ctx, params)
    };
  }
}