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 ItemFuncRepeat extends ItemStrFunc {
  
      public ItemFuncRepeat(List<Item> args, int charsetIndex) {
          super(args, charsetIndex);
      }
  
      @Override
      public final String funcName() {
          return "repeat";
      }
  
      @Override
      public String valStr() {
          String old = args.get(0).valStr();
          int count = args.get(1).valInt().intValue();
          if (args.get(0).isNull() || args.get(1).isNull()) {
              this.nullValue = true;
              return EMPTY;
          }
          if (count < 1)
              return EMPTY;
          StringBuilder sb = new StringBuilder();
          for (long l = 0; l < count; l++) {
              sb.append(old);
          }
          return sb.toString();
      }
  
      @Override
      public ItemFunc nativeConstruct(List<Item> realArgs) {
          return new ItemFuncRepeat(realArgs, charsetIndex);
      }
  }
  