content: // Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
  //  This source code is licensed under both the GPLv2 (found in the
  //  COPYING file in the root directory) and Apache 2.0 License
  //  (found in the LICENSE.Apache file in the root directory).
  
  package org.rocksdb;
  
  /**
   * Simple type conversion methods
   * for use in tests
   */
  public class Types {
  
    /**
     * Convert first 4 bytes of a byte array to an int
     *
     * @param data The byte array
     *
     * @return An integer
     */
    public static int byteToInt(final byte data[]) {
      return (data[0] & 0xff) |
          ((data[1] & 0xff) << 8) |
          ((data[2] & 0xff) << 16) |
          ((data[3] & 0xff) << 24);
    }
  
    /**
     * Convert an int to 4 bytes
     *
     * @param v The int
     *
     * @return A byte array containing 4 bytes
     */
    public static byte[] intToByte(final int v) {
      return new byte[] {
          (byte)((v >>> 0) & 0xff),
          (byte)((v >>> 8) & 0xff),
          (byte)((v >>> 16) & 0xff),
          (byte)((v >>> 24) & 0xff)
      };
    }
  }
  