content: /*
   * Copyright [2021-present] [ahoo wang <ahoowang@qq.com> (https://github.com/Ahoo-Wang)].
   * 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 me.ahoo.cosid.converter;
  
  import static me.ahoo.cosid.converter.RadixIdConverter.PAD_CHAR;
  
  import me.ahoo.cosid.IdConverter;
  import me.ahoo.cosid.stat.Stat;
  import me.ahoo.cosid.stat.converter.ToStringConverterStat;
  
  import jakarta.annotation.Nonnull;
  import com.google.common.base.Strings;
  
  
  /**
   * ToString ID Converter.
   *
   * @author ahoo wang
   */
  public class ToStringIdConverter implements IdConverter {
  
      public static final ToStringIdConverter INSTANCE = new ToStringIdConverter(false, 0);
      private final boolean padStart;
      private final int charSize;
  
      public ToStringIdConverter(boolean padStart, int charSize) {
          this.padStart = padStart;
          this.charSize = charSize;
      }
  
      @Nonnull
      @Override
      public String asString(long id) {
          String idStr = String.valueOf(id);
          if (!padStart) {
              return idStr;
          }
          return Strings.padStart(idStr, charSize, PAD_CHAR);
      }
  
      @Override
      public long asLong(@Nonnull String idString) {
          return Long.parseLong(idString);
      }
  
      @Override
      public Stat stat() {
          return new ToStringConverterStat(getClass().getSimpleName(), padStart, charSize);
      }
  }
  