Java tutorial
/* * Copyright (c) 2016 NECTEC * National Electronics and Computer Technology Center, Thailand * * 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 org.tanrabad.survey.utils.time; import org.joda.time.DateTime; import java.util.Locale; import java.util.Map; import java.util.concurrent.ConcurrentHashMap; class DateTimePrinter implements TimePrettyPrinter { private static final Map<Integer, String> monthNameMap = new ConcurrentHashMap<>(); static { monthNameMap.put(1, ".."); monthNameMap.put(2, "?.."); monthNameMap.put(3, ".."); monthNameMap.put(4, ".."); monthNameMap.put(5, ".."); monthNameMap.put(6, ".."); monthNameMap.put(7, "?.."); monthNameMap.put(8, ".."); monthNameMap.put(9, "?.."); monthNameMap.put(10, ".."); monthNameMap.put(11, ".."); monthNameMap.put(12, ".."); } private final CurrentTimer currentTimer; public DateTimePrinter(CurrentTimer currentTimer) { this.currentTimer = currentTimer; } @Override public String print(long referenceTime) { DateTime currentTimeInMills = new DateTime(currentTimer.getInMills()); DateTime agoDateTime = new DateTime(referenceTime); if (currentTimeInMills.getYear() == agoDateTime.getYear()) return String.format(Locale.US, "%d %s %02d:%02d", agoDateTime.getDayOfMonth(), monthNameMap.get(agoDateTime.getMonthOfYear()), agoDateTime.getHourOfDay(), agoDateTime.getMinuteOfHour()); else { return String.format(Locale.US, "%d %s %04d %02d:%02d", agoDateTime.getDayOfMonth(), monthNameMap.get(agoDateTime.getMonthOfYear()), agoDateTime.getYear() + 543, agoDateTime.getHourOfDay(), agoDateTime.getMinuteOfHour()); } } }