content: /*****************************************************************
   *   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
   *
   *    https://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.cayenne.crypto.transformer.value;
  
  /**
   * @since 4.0
   */
  public class ShortConverter implements BytesConverter<Short> {
  
      public static final BytesConverter<Short> INSTANCE = new ShortConverter();
      private static final int BYTES = 2;
  
      static short getShort(byte[] bytes) {
  
          if (bytes.length < BYTES) {
              return ByteConverter.getByte(bytes);
          }
  
          if (bytes.length > BYTES) {
              throw new IllegalArgumentException("byte[] is too large for a single short value: " + bytes.length);
          }
  
          return (short) ((bytes[0] & 0xFF) << 8 | (bytes[1] & 0xFF));
      }
  
      static byte[] getBytes(short k) {
  
          if (k >= Byte.MIN_VALUE && k <= Byte.MAX_VALUE) {
              return ByteConverter.getBytes((byte) k);
          }
  
          return new byte[]{
                  (byte) (k >> 8),
                  (byte) k};
      }
  
      @Override
      public Short fromBytes(byte[] bytes) {
          return getShort(bytes);
      }
  
      @Override
      public byte[] toBytes(Short value) {
          return getBytes(value);
      }
  }
  