Java tutorial
/* * Copyright (c) 2015 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; public class TimePrettyPrinterFactory implements TimePrettyPrinter { private final CurrentTimer currentTimer; public TimePrettyPrinterFactory(CurrentTimer currentTimer) { this.currentTimer = currentTimer; } @Override public String print(long referenceTime) { DateTime reference = new DateTime(referenceTime); DateTime current = new DateTime(currentTimer.getInMills()); long diffMills = current.getMillis() - reference.getMillis(); if (diffMills < MINITE_IN_MILLS) return new SecondsAgoPrinter(currentTimer).print(referenceTime); else if (diffMills < HOUR_IN_MILLS) return new MinuteAgoPrinter(currentTimer).print(referenceTime); else if (current.getYear() == reference.getYear() && current.getDayOfYear() - reference.getDayOfYear() == 0) return new HoursAgoPrinter(currentTimer).print(referenceTime); else if (current.getYear() == reference.getYear() && current.getDayOfYear() - reference.getDayOfYear() == 1) return new DaysAgoPrinter(currentTimer).print(referenceTime); else return new DateTimePrinter(currentTimer).print(referenceTime); } }