| /* |
| * 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.drill.exec.server.rest.profile; |
| |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * Representation of a millisecond duration in a human-readable format |
| */ |
| public class SimpleDurationFormat { |
| private long days; |
| private long hours; |
| private long minutes; |
| private long seconds; |
| private long milliSeconds; |
| private long durationInMillis; |
| |
| //Block creation of any default objects |
| @SuppressWarnings("unused") |
| private SimpleDurationFormat() {} |
| |
| /** |
| * If end time is less than the start time, current epoch time is assumed as the end time. |
| * @param startTimeMillis |
| * @param endTimeMillis |
| */ |
| public SimpleDurationFormat(long startTimeMillis, long endTimeMillis) { |
| durationInMillis = (startTimeMillis > endTimeMillis ? System.currentTimeMillis() : endTimeMillis) - startTimeMillis; |
| days = TimeUnit.MILLISECONDS.toDays(durationInMillis); |
| hours = TimeUnit.MILLISECONDS.toHours(durationInMillis) - TimeUnit.DAYS.toHours(TimeUnit.MILLISECONDS.toDays(durationInMillis)); |
| minutes = TimeUnit.MILLISECONDS.toMinutes(durationInMillis) - TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(durationInMillis)); |
| seconds = TimeUnit.MILLISECONDS.toSeconds(durationInMillis) - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(durationInMillis)); |
| milliSeconds = durationInMillis - TimeUnit.SECONDS.toMillis(TimeUnit.MILLISECONDS.toSeconds(durationInMillis)); |
| } |
| |
| /** |
| * Return a compact representation of elapsed time with only the most significant time units and no spaces |
| * @return duration |
| */ |
| public String compact() { |
| if (days >= 1) { |
| return days + "d" + hours + "h" + minutes + "m"; |
| } else if (hours >= 1) { |
| return hours + "h" + minutes + "m"; |
| } else if (minutes >= 1) { |
| return minutes + "m" + seconds + "s"; |
| } else { |
| return String.format("%.3fs", seconds + milliSeconds/1000.0); |
| } |
| } |
| |
| /** |
| * Return a verbose representation of elapsed time down to millisecond granularity |
| * @return duration |
| */ |
| public String verbose() { |
| return (days > 0 ? days + " day " : "") + |
| ((hours + days) > 0 ? hours + " hr " : "") + |
| ((minutes + hours + days) > 0 ? String.format("%02d min ", minutes) : "") + |
| seconds + "." + String.format("%03d sec", milliSeconds); |
| } |
| } |