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.arrow.memory.util;
  
  import java.util.Arrays;
  
  /** Utilities and static methods needed for arrow-memory. */
  public final class CommonUtil {
  
    private CommonUtil() {}
  
    /**
     * Rounds up the provided value to the nearest power of two.
     *
     * @param val An integer value.
     * @return The closest power of two of that value.
     */
    public static int nextPowerOfTwo(int val) {
      if (val == 0 || val == 1) {
        return val + 1;
      }
      int highestBit = Integer.highestOneBit(val);
      if (highestBit == val) {
        return val;
      } else {
        return highestBit << 1;
      }
    }
  
    /**
     * Rounds up the provided value to the nearest power of two.
     *
     * @param val A long value.
     * @return The closest power of two of that value.
     */
    public static long nextPowerOfTwo(long val) {
      if (val == 0 || val == 1) {
        return val + 1;
      }
      long highestBit = Long.highestOneBit(val);
      if (highestBit == val) {
        return val;
      } else {
        return highestBit << 1;
      }
    }
  
    /**
     * Specify an indentation amount when using a StringBuilder.
     *
     * @param sb StringBuilder to use
     * @param indent Indentation amount
     * @return the StringBuilder object with indentation applied
     */
    public static StringBuilder indent(StringBuilder sb, int indent) {
      final char[] indentation = new char[indent * 2];
      Arrays.fill(indentation, ' ');
      sb.append(indentation);
      return sb;
    }
  }
  