Java tutorial
/* * Copyright (C) 2017 Aliaksei Pilko * * 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 com.aliakseipilko.flightdutytracker.view.adapter; import com.aliakseipilko.flightdutytracker.realm.model.Flight; import com.aliakseipilko.flightdutytracker.utils.DayAxisValueFormatter; import com.aliakseipilko.flightdutytracker.view.fragment.statsFragments.base.BaseStatsFragment; import com.github.mikephil.charting.data.BarData; import com.github.mikephil.charting.data.BarDataSet; import com.github.mikephil.charting.data.BarEntry; import com.github.mikephil.charting.formatter.DefaultAxisValueFormatter; import com.github.mikephil.charting.formatter.IAxisValueFormatter; import org.joda.time.DateTime; import org.joda.time.Seconds; import java.util.ArrayList; import java.util.List; import io.realm.RealmResults; public class DayBarChartAdapter extends BaseChartAdapter { RealmResults<Flight> flights; BaseStatsFragment view; public DayBarChartAdapter(BaseStatsFragment view) { this.view = view; } public void process(RealmResults<Flight> flights) { this.flights = flights; processDutyHours(); processFlightHours(); } private void processDutyHours() { List<BarEntry> barDutyEntries = new ArrayList<>(); float xValueCount = 0f; int maxDaysInMonth = 0; long startDay = new DateTime(flights.minDate("startDutyTime")).getDayOfMonth(); long currentYear = 0; long currentMonth = 0; long currentDay = 0; boolean isMonthWrapping = false; for (Flight flight : flights) { DateTime startDateTime = new DateTime(flight.getStartDutyTime()); DateTime endDateTime = new DateTime(flight.getEndDutyTime()); float decHoursDiff = (Seconds.secondsBetween(startDateTime, endDateTime).getSeconds() / 60f) / 60f; //Dont display stats for today as they will be malformed if (startDateTime.getDayOfYear() == DateTime.now().getDayOfYear() && startDateTime.getYear() == DateTime.now().getYear()) { continue; } if (currentYear == 0 && currentMonth == 0 && currentDay == 0) { currentYear = startDateTime.getYear(); currentMonth = startDateTime.getMonthOfYear(); currentDay = startDateTime.getDayOfMonth(); maxDaysInMonth = determineDaysInMonth((int) currentMonth, (int) currentYear); //Add new entry using day of month as x value BarEntry newEntry = new BarEntry(xValueCount, decHoursDiff); barDutyEntries.add(newEntry); xValueCount++; } else { //Check if month is wrapping if (currentDay + 1 >= maxDaysInMonth) { isMonthWrapping = true; } else { //Check if days are adjacent //Add skipped days onto xValueCount to display blank spaces in graph if (currentDay + 1 != startDateTime.getDayOfMonth()) { xValueCount += (startDateTime.getDayOfMonth() - currentDay) - 1; } } //Check if the date is the same as the previous flight // All flights are provided in an ordered list by the repo if (currentDay == startDateTime.getDayOfMonth() && currentMonth == startDateTime.getMonthOfYear() && currentYear == startDateTime.getYear()) { //Get last entry in list BarEntry lastEntry = barDutyEntries.get(barDutyEntries.size() - 1); //Add the additional hours in that day on, X value (the date) does not change lastEntry = new BarEntry(lastEntry.getX(), lastEntry.getY() + decHoursDiff); //Remove the last entry and add the modified entry instead of it barDutyEntries.remove(barDutyEntries.size() - 1); barDutyEntries.add(lastEntry); } else { //Check if days of month wrap around if (startDateTime.getMonthOfYear() != currentMonth) { isMonthWrapping = true; } //New day //Update these for the next iteration currentYear = startDateTime.getYear(); currentMonth = startDateTime.getMonthOfYear(); currentDay = startDateTime.getDayOfMonth(); //Add new entry using day of month as x value BarEntry newEntry = new BarEntry(xValueCount, decHoursDiff); barDutyEntries.add(newEntry); xValueCount++; } } } IAxisValueFormatter xAxisValueFormatter = new DayAxisValueFormatter((int) (startDay - 1), maxDaysInMonth); IAxisValueFormatter yAxisValueFormatter = new DefaultAxisValueFormatter(2); BarDataSet dataSet = new BarDataSet(barDutyEntries, "Duty Hours"); dataSet.setValueTextSize(16f); BarData barDutyData = new BarData(dataSet); barDutyData.setBarWidth(0.9f); barDutyData.setHighlightEnabled(false); view.setupDutyBarChart(barDutyData, xAxisValueFormatter, yAxisValueFormatter); } private void processFlightHours() { List<BarEntry> barFlightEntries = new ArrayList<>(); float xValueCount = 0f; int maxDaysInMonth = 0; long startDay = new DateTime(flights.minDate("startFlightTime")).getDayOfMonth(); long currentYear = 0; long currentMonth = 0; long currentDay = 0; boolean isMonthWrapping = false; for (Flight flight : flights) { DateTime startDateTime = new DateTime(flight.getStartFlightTime()); DateTime endDateTime = new DateTime(flight.getEndFlightTime()); float decHoursDiff = (Seconds.secondsBetween(startDateTime, endDateTime).getSeconds() / 60f) / 60f; //Dont display stats for today as they will be malformed if (startDateTime.getDayOfYear() == DateTime.now().getDayOfYear() && startDateTime.getYear() == DateTime.now().getYear()) { continue; } if (currentYear == 0 && currentMonth == 0 && currentDay == 0) { currentYear = startDateTime.getYear(); currentMonth = startDateTime.getMonthOfYear(); currentDay = startDateTime.getDayOfMonth(); maxDaysInMonth = determineDaysInMonth((int) currentMonth, (int) currentYear); //Add new entry using day of month as x value BarEntry newEntry = new BarEntry(xValueCount, decHoursDiff); barFlightEntries.add(newEntry); xValueCount++; } else { //Check if month is wrapping if (currentDay + 1 >= maxDaysInMonth) { isMonthWrapping = true; } else { //Check if days are adjacent //Add skipped days onto xValueCount to display blank spaces in graph if (currentDay + 1 != startDateTime.getDayOfMonth()) { xValueCount = xValueCount + (startDateTime.getDayOfMonth() - currentDay) - 1; } } //Check if the date is the same as the previous flight // All flights are provided in an ordered list by the repo if (currentDay == startDateTime.getDayOfMonth() && currentMonth == startDateTime.getMonthOfYear() && currentYear == startDateTime.getYear()) { //Get last entry in list BarEntry lastEntry = barFlightEntries.get(barFlightEntries.size() - 1); //Add the additional hours in that day on, X value (the date) does not change lastEntry = new BarEntry(lastEntry.getX(), lastEntry.getY() + decHoursDiff); //Remove the last entry and add the modified entry instead of it barFlightEntries.remove(barFlightEntries.size() - 1); barFlightEntries.add(lastEntry); } else { //Check if days of month wrap around if (startDateTime.getMonthOfYear() != currentMonth) { isMonthWrapping = true; } //New day //Update these for the next iteration currentYear = startDateTime.getYear(); currentMonth = startDateTime.getMonthOfYear(); currentDay = startDateTime.getDayOfMonth(); //Add new entry using day of month as x value BarEntry newEntry = new BarEntry(xValueCount, decHoursDiff); barFlightEntries.add(newEntry); xValueCount++; } } } IAxisValueFormatter xAxisValueFormatter = new DayAxisValueFormatter((int) (startDay - 1), maxDaysInMonth); IAxisValueFormatter yAxisValueFormatter = new DefaultAxisValueFormatter(2); BarDataSet dataSet = new BarDataSet(barFlightEntries, "Flight Hours"); dataSet.setValueTextSize(16f); BarData barFlightData = new BarData(dataSet); barFlightData.setBarWidth(0.9f); barFlightData.setHighlightEnabled(false); view.setupFlightBarChart(barFlightData, xAxisValueFormatter, yAxisValueFormatter); } int determineDaysInMonth(int month, int year) { switch (month) { case 2: return isLeapYear(year) ? 29 : 28; case 4: return 30; case 6: return 30; case 9: return 30; case 11: return 30; default: return 31; } } private boolean isLeapYear(int year) { if (year % 4 == 0) { if (year % 100 == 0) { if (year % 400 == 0) { return true; } } else { return true; } } return false; } }