Java tutorial
/** * *************************************************************************** * Copyright (c) 2010 Qcadoo Limited * Project: Qcadoo Framework * Version: 1.4 * * This file is part of Qcadoo. * * Qcadoo is free software; you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published * by the Free Software Foundation; either version 3 of the License, * or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * *************************************************************************** */ package com.qcadoo.view.internal.components.ganttChart; import java.util.ArrayList; import java.util.Date; import java.util.List; import org.joda.time.DateTime; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import com.qcadoo.model.internal.types.DateType; import com.qcadoo.view.api.components.ganttChart.GanttChartItem; import com.qcadoo.view.api.components.ganttChart.GanttChartItemTooltip; import com.qcadoo.view.api.components.ganttChart.GanttChartItemTooltipBuilder; import com.qcadoo.view.api.components.ganttChart.GanttChartScale; public class GanttChartScaleImpl implements GanttChartScale { private final GanttChartComponentState ganttChartComponentState; private final GanttChartItemFactory ganttChartItemFactory; private static final DateType DATETYPE = new DateType(); private final ZoomLevel zoomLevel; private Date dateFrom; private Date dateTo; private Boolean isDatesSet; private static final String JSON_ELEMENTS_IN_CATEGORY = "elementsInCategory"; private static final String JSON_ELEMENT_LABELS_INTERVAL = "elementLabelsInterval"; private static final String JSON_ELEMENT_LABEL_INITIAL_NUMBER = "elementLabelInitialNumber"; private static final String JSON_CATEGORIES = "categories"; public enum ZoomLevel { H1(1, 1), H3(3, 3), H6(6, 6), D1(24, 24); private final int maxRangeInMonths; private final int hoursInterval; private ZoomLevel(final int maxRangeInMonths, final int hoursInterval) { this.maxRangeInMonths = maxRangeInMonths; this.hoursInterval = hoursInterval; } public int getHoursInterval() { return hoursInterval; } public int getMaxRangeInMonths() { return maxRangeInMonths; } } public GanttChartScaleImpl(final GanttChartComponentState ganttChartComponentState, final ZoomLevel zoomLevel, final Date dateFrom, final Date dateTo) { this.ganttChartComponentState = ganttChartComponentState; this.zoomLevel = zoomLevel; this.dateFrom = new Date(dateFrom.getTime()); this.dateTo = new DateTime(dateTo).withHourOfDay(23).withMinuteOfHour(59).withSecondOfMinute(59).toDate(); this.ganttChartItemFactory = new GanttChartItemFactory(zoomLevel.getHoursInterval()); } public JSONObject getAsJson() throws JSONException { JSONObject scaleObject = new JSONObject(); JSONArray categoriesArray = null; switch (zoomLevel) { case H1: categoriesArray = getDaysArray(); scaleObject.put(JSON_ELEMENTS_IN_CATEGORY, 24); scaleObject.put(JSON_ELEMENT_LABELS_INTERVAL, 1); scaleObject.put(JSON_ELEMENT_LABEL_INITIAL_NUMBER, 0); break; case H3: categoriesArray = getDaysArray(); scaleObject.put(JSON_ELEMENTS_IN_CATEGORY, 8); scaleObject.put(JSON_ELEMENT_LABELS_INTERVAL, 3); scaleObject.put(JSON_ELEMENT_LABEL_INITIAL_NUMBER, 0); break; case H6: categoriesArray = getDaysArray(); scaleObject.put(JSON_ELEMENTS_IN_CATEGORY, 4); scaleObject.put(JSON_ELEMENT_LABELS_INTERVAL, 6); scaleObject.put(JSON_ELEMENT_LABEL_INITIAL_NUMBER, 0); break; case D1: return getWeeksScale(); default: break; } scaleObject.put(JSON_CATEGORIES, categoriesArray); return scaleObject; } private JSONArray getDaysArray() { JSONArray daysArray = new JSONArray(); DateTime dateTimeFrom = new DateTime(dateFrom); DateTime dateTimeTo = new DateTime(dateTo); while (dateTimeFrom.compareTo(dateTimeTo) <= 0) { daysArray.put(DATETYPE.toString(dateTimeFrom.toDate(), ganttChartComponentState.getLocale())); dateTimeFrom = dateTimeFrom.plusDays(1); } return daysArray; } private JSONObject getWeeksScale() throws JSONException { DateTime dateTimeFrom = new DateTime(dateFrom); DateTime dateTimeTo = new DateTime(dateTo); int dateTimeFromDayOfWeek = dateTimeFrom.getDayOfWeek(); int dateTimeToDayOfWeek = dateTimeTo.getDayOfWeek(); List<Integer> weekNumbers = new ArrayList<Integer>(); int lastAddedWeekNumber = 0; while (dateTimeFrom.compareTo(dateTimeTo) < 0) { lastAddedWeekNumber = dateTimeFrom.getWeekOfWeekyear(); weekNumbers.add(lastAddedWeekNumber); dateTimeFrom = dateTimeFrom.plusWeeks(1); } if (dateTimeTo.getWeekOfWeekyear() > lastAddedWeekNumber) { lastAddedWeekNumber = dateTimeTo.getWeekOfWeekyear(); weekNumbers.add(lastAddedWeekNumber); } JSONArray weeksArray = new JSONArray(); for (int i = 0; i < weekNumbers.size(); i++) { if (i == 0 && dateTimeFromDayOfWeek > 5) { weeksArray.put(weekNumbers.get(i).toString()); } else if (i == weekNumbers.size() - 1 && dateTimeToDayOfWeek < 3) { weeksArray.put(weekNumbers.get(i).toString()); } else { weeksArray.put(ganttChartComponentState.translate("week") + " " + weekNumbers.get(i)); } } JSONObject scaleObject = new JSONObject(); JSONArray weekDays = new JSONArray(); weekDays.put(ganttChartComponentState.translate("weekDay.short.monday")); weekDays.put(ganttChartComponentState.translate("weekDay.short.tuesday")); weekDays.put(ganttChartComponentState.translate("weekDay.short.wensday")); weekDays.put(ganttChartComponentState.translate("weekDay.short.thursday")); weekDays.put(ganttChartComponentState.translate("weekDay.short.friday")); weekDays.put(ganttChartComponentState.translate("weekDay.short.saturday")); weekDays.put(ganttChartComponentState.translate("weekDay.short.sunday")); scaleObject.put(JSON_ELEMENTS_IN_CATEGORY, 7); scaleObject.put("elementLabelsValues", weekDays); scaleObject.put("firstCategoryFirstElement", dateTimeFromDayOfWeek); scaleObject.put("lastCategoryLastElement", dateTimeToDayOfWeek); scaleObject.put(JSON_CATEGORIES, weeksArray); return scaleObject; } public boolean isFromLargerThanTo() { return (dateFrom != null && dateTo != null && dateFrom.compareTo(dateTo) > 0); } public boolean isTooLargeRange() { DateTime dateTimeFrom = new DateTime(dateFrom); DateTime dateTimeTo = new DateTime(dateTo); return (dateTimeFrom.plusMonths(zoomLevel.getMaxRangeInMonths()).compareTo(dateTimeTo) < 0); } public int getMaxRangeInMonths() { return zoomLevel.getMaxRangeInMonths(); } public ZoomLevel getZoomLevel() { return zoomLevel; } @Override public Date getDateTo() { if (dateTo == null) { return null; } return new Date(dateTo.getTime()); } @Override public Date getDateFrom() { if (dateFrom == null) { return null; } return new Date(dateFrom.getTime()); } @Override public void setDateFrom(final Date dateFrom) { this.dateFrom = new DateTime(dateFrom).withHourOfDay(0).withMinuteOfHour(0).withSecondOfMinute(0) .withMillisOfSecond(0).toDate(); } @Override public void setDateTo(final Date dateTo) { this.dateTo = new DateTime(dateTo).withHourOfDay(0).withMinuteOfHour(0).withSecondOfMinute(0) .withMillisOfSecond(0).toDate(); } @Override public GanttChartItem createGanttChartItem(final String rowName, final String name, final Long entityId, final Date itemDateFrom, final Date itemDateTo) { return createGanttChartItem(rowName, name, new GanttChartItemTooltipBuilder().withHeader(name).build(), entityId, itemDateFrom, itemDateTo); } @Override public GanttChartItem createGanttChartItem(final String rowName, final String label, final GanttChartItemTooltip tooltip, final Long entityId, final Date itemDateFrom, final Date itemDateTo) { return ganttChartItemFactory.createGanttChartItem(rowName, label, tooltip, entityId, dateFrom, dateTo, itemDateFrom, itemDateTo); } public Boolean getIsDatesSet() { return isDatesSet; } public void setIsDatesSet(final Boolean isDatesSet) { this.isDatesSet = isDatesSet; } }