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/*
 * Copyright (c) 2016 Uber Technologies, Inc. ([email protected])
 *
 * 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 com.uber.hoodie.common.util;

public class NumericUtils {

  public static String humanReadableByteCount(double bytes) {
    if (bytes < 1024) {
      return String.format("%.1f B", bytes);
    }
    int exp = (int) (Math.log(bytes) / Math.log(1024));
    String pre = "KMGTPE".charAt(exp - 1) + "";
    return String.format("%.1f %sB", bytes / Math.pow(1024, exp), pre);
  }
}