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
   *
   *     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.bookkeeper.common.coder;
  
  import static java.nio.charset.StandardCharsets.UTF_8;
  
  import com.google.common.base.Utf8;
  import io.netty.buffer.ByteBuf;
  import io.netty.buffer.ByteBufUtil;
  import java.nio.charset.StandardCharsets;
  import lombok.AccessLevel;
  import lombok.NoArgsConstructor;
  
  /**
   * A coder that encodes strings in utf-8 format.
   */
  @NoArgsConstructor(access = AccessLevel.PRIVATE)
  public final class StringUtf8Coder implements Coder<String> {
  
      /**
       * Get the coder to encode strings in utf-8.
       *
       * @return string coder.
       */
      public static StringUtf8Coder of() {
          return INSTANCE;
      }
  
      private static final StringUtf8Coder INSTANCE = new StringUtf8Coder();
  
      @Override
      public void encode(String value, ByteBuf destBuf) {
          destBuf.writeBytes(value.getBytes(UTF_8));
      }
  
      @Override
      public int getSerializedSize(String value) {
          return Utf8.encodedLength(value);
      }
  
      @Override
      public String decode(byte[] data) {
          return new String(data, StandardCharsets.UTF_8);
      }
  
      @Override
      public String decode(ByteBuf data) {
          byte[] bytes = ByteBufUtil.getBytes(data);
          return decode(bytes);
      }
  }
  