/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.samza.serializers;

import java.nio.ByteBuffer;

/**
 * A serializer for integers
 */
public class IntegerSerde implements Serde<Integer> {

  public byte[] toBytes(Integer obj) {
    if (obj != null) {
      return ByteBuffer.allocate(4).putInt(obj).array();
    } else {
      return null;
    }
  }

  // big-endian by default
  public Integer fromBytes(byte[] bytes) {
    if (bytes != null) {
      return ByteBuffer.wrap(bytes).getInt();
    } else {
      return null;
    }
  }
}