1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache license, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the license for the specific language governing permissions and
15 * limitations under the license.
16 */
17 package org.apache.logging.log4j.audit.rest;
18
19 import java.text.DecimalFormat;
20
21 public class ElapsedUtil {
22
23 private static long NANO_PER_SECOND = 1000000000L;
24 private static long NANO_PER_MINUTE = NANO_PER_SECOND * 60;
25 private static long NANO_PER_HOUR = NANO_PER_MINUTE * 60;
26
27 static void addElapsed(long elapsed, StringBuilder msg) {
28 long nanoseconds = elapsed;
29 // Get elapsed hours
30 long hours = nanoseconds / NANO_PER_HOUR;
31 // Get remaining nanoseconds
32 nanoseconds = nanoseconds % NANO_PER_HOUR;
33 // Get minutes
34 long minutes = nanoseconds / NANO_PER_MINUTE;
35 // Get remaining nanoseconds
36 nanoseconds = nanoseconds % NANO_PER_MINUTE;
37 // Get seconds
38 long seconds = nanoseconds / NANO_PER_SECOND;
39 // Get remaining nanoseconds
40 nanoseconds = nanoseconds % NANO_PER_SECOND;
41
42 if (hours > 0) {
43 msg.append(hours).append(" hours ");
44 }
45 if (minutes > 0 || hours > 0) {
46 msg.append(minutes).append(" minutes ");
47 }
48
49 DecimalFormat numFormat = null;
50 numFormat = new DecimalFormat("#0");
51 msg.append(numFormat.format(seconds)).append('.');
52 numFormat = new DecimalFormat("000000000");
53 msg.append(numFormat.format(nanoseconds)).append(" seconds");
54 }
55 }