code: /*
   * Copyright 2012-2018 Chronicle Map Contributors
   *
   * Licensed 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 net.openhft.chronicle.hash.serialization.impl;
  
  import net.openhft.chronicle.hash.serialization.DataAccess;
  import org.jetbrains.annotations.Nullable;
  
  import static net.openhft.chronicle.hash.serialization.impl.DefaultElasticBytes.DEFAULT_BYTES_CAPACITY;
  
  public final class StringBuilderUtf8DataAccess
          extends AbstractCharSequenceUtf8DataAccess<StringBuilder> {
  
      public StringBuilderUtf8DataAccess() {
          this(DEFAULT_BYTES_CAPACITY);
      }
  
      private StringBuilderUtf8DataAccess(long bytesCapacity) {
          super(bytesCapacity);
      }
  
      @Override
      public StringBuilder getUsing(@Nullable StringBuilder using) {
          if (using != null) {
              using.setLength(0);
          } else {
              using = new StringBuilder(cs.length());
          }
          using.append(cs);
          return using;
      }
  
      @Override
      public DataAccess<StringBuilder> copy() {
          return new StringBuilderUtf8DataAccess(bytes().realCapacity());
      }
  }
  