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   /*
    * Copyright 2016 The Netty Project
    *
    * The Netty Project 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 io.netty.handler.codec.redis;
  
  import io.netty.util.CharsetUtil;
  import io.netty.util.internal.PlatformDependent;
  
  /**
   * Utilities for codec-redis.
   */
  final class RedisCodecUtil {
  
      private RedisCodecUtil() {
      }
  
      static byte[] longToAsciiBytes(long value) {
          return Long.toString(value).getBytes(CharsetUtil.US_ASCII);
      }
  
      /**
       * Returns a {@code short} value using endian order.
       */
      static short makeShort(char first, char second) {
          return PlatformDependent.BIG_ENDIAN_NATIVE_ORDER ?
                  (short) ((second << 8) | first) : (short) ((first << 8) | second);
      }
  
      /**
       * Returns a {@code byte[]} of {@code short} value. This is opposite of {@code makeShort()}.
       */
      static byte[] shortToBytes(short value) {
          byte[] bytes = new byte[2];
          if (PlatformDependent.BIG_ENDIAN_NATIVE_ORDER) {
              bytes[1] = (byte) ((value >> 8) & 0xff);
              bytes[0] = (byte) (value & 0xff);
          } else {
              bytes[0] = (byte) ((value >> 8) & 0xff);
              bytes[1] = (byte) (value & 0xff);
          }
          return bytes;
      }
  }