1 /* 2 * Copyright (C) 2021 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.server.wm.traces.common 18 19 private const val MILLISECOND_AS_NANOSECONDS: Long = 1000000 20 private const val SECOND_AS_NANOSECONDS: Long = 1000000000 21 private const val MINUTE_AS_NANOSECONDS: Long = 60000000000 22 private const val HOUR_AS_NANOSECONDS: Long = 3600000000000 23 private const val DAY_AS_NANOSECONDS: Long = 86400000000000 24 prettyTimestampnull25fun prettyTimestamp(timestampNs: Long): String { 26 // Necessary for compatibility with JS Number 27 var remainingNs = "$timestampNs".toLong() 28 val prettyTimestamp = StringBuilder() 29 30 val timeUnitToNanoSeconds = mapOf( 31 "d" to DAY_AS_NANOSECONDS, 32 "h" to HOUR_AS_NANOSECONDS, 33 "m" to MINUTE_AS_NANOSECONDS, 34 "s" to SECOND_AS_NANOSECONDS, 35 "ms" to MILLISECOND_AS_NANOSECONDS 36 ) 37 38 for ((timeUnit, ns) in timeUnitToNanoSeconds) { 39 val convertedTime = remainingNs / ns 40 remainingNs %= ns 41 prettyTimestamp.append("$convertedTime$timeUnit") 42 } 43 44 return prettyTimestamp.toString() 45 }