content: /*
   * Copyright (C) 2016-2023 ActionTech.
   * License: http://www.gnu.org/licenses/gpl.html GPL version 2 or higher.
   */
  
  package com.actiontech.dble.plan.common.item.function.strfunc;
  
  import com.actiontech.dble.plan.common.item.Item;
  import com.actiontech.dble.plan.common.item.function.ItemFunc;
  
  import java.util.List;
  
  public class ItemFuncSpace extends ItemStrFunc {
  
      public ItemFuncSpace(List<Item> args, int charsetIndex) {
          super(args, charsetIndex);
      }
  
      @Override
      public final String funcName() {
          return "SPACE";
      }
  
      @Override
      public String valStr() {
          int count = args.get(0).valInt().intValue();
          if (this.nullValue = args.get(0).isNull())
              return EMPTY;
          if (count <= 0)
              return EMPTY;
          StringBuilder sb = new StringBuilder();
          for (long i = 0; i < count; i++) {
              sb.append(' ');
          }
          return sb.toString();
      }
  
      @Override
      public ItemFunc nativeConstruct(List<Item> realArgs) {
          return new ItemFuncSpace(realArgs, charsetIndex);
      }
  }
  