Jasper Calendar started

7 years ago · 50a0324756
parent 858d342960
commit 50a0324756
5 changed files with 478 additions and 2 deletions
--- a/pom.xml
+++ b/pom.xml
@ -197,6 +197,11 @@
 			<version>3.23.1-GA</version>
 		</dependency>

+		<dependency>
+			<groupId>net.sf.jasperreports</groupId>
+			<artifactId>jasperreports</artifactId>
+			<version>6.7.0</version>
+		</dependency>
 	</dependencies>

 	<dependencyManagement>
--- a/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/components/CalendarComponent.java
+++ b/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/components/CalendarComponent.java
@ -1,11 +1,19 @@
 package de.kreth.vaadin.clubhelper.vaadinclubhelper.ui.components;

+import java.io.IOException;
+import java.io.PipedInputStream;
+import java.io.PipedOutputStream;
 import java.time.LocalDateTime;
 import java.time.Month;
 import java.time.ZonedDateTime;
 import java.time.format.DateTimeFormatter;
 import java.util.Collection;
+import java.util.Date;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;

+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.vaadin.addon.calendar.Calendar;
 import org.vaadin.addon.calendar.item.BasicItemProvider;
 import org.vaadin.addon.calendar.ui.CalendarComponentEvents.BackwardHandler;
@ -15,7 +23,10 @@ import org.vaadin.addon.calendar.ui.CalendarComponentEvents.ItemClickHandler;

 import com.vaadin.contextmenu.ContextMenu;
 import com.vaadin.contextmenu.MenuItem;
+import com.vaadin.server.StreamResource;
 import com.vaadin.shared.Registration;
+import com.vaadin.ui.AbstractComponent;
+import com.vaadin.ui.BrowserFrame;
 import com.vaadin.ui.Button;
 import com.vaadin.ui.Button.ClickEvent;
 import com.vaadin.ui.CustomComponent;
@ -23,14 +34,19 @@ import com.vaadin.ui.HorizontalLayout;
 import com.vaadin.ui.Label;
 import com.vaadin.ui.Notification;
 import com.vaadin.ui.VerticalLayout;
+import com.vaadin.ui.Window;

 import de.kreth.vaadin.clubhelper.vaadinclubhelper.data.ClubEvent;
+import net.sf.jasperreports.engine.JRException;
+import net.sf.jasperreports.engine.JasperExportManager;
+import net.sf.jasperreports.engine.JasperPrint;

 public class CalendarComponent extends CustomComponent {

 	private static final long serialVersionUID = -9152173211931554059L;
+	private transient final Logger log = LoggerFactory.getLogger(getClass()); 

-	private transient DateTimeFormatter dfMonth = DateTimeFormatter.ofPattern("MMMM uu");
+	private transient DateTimeFormatter dfMonth = DateTimeFormatter.ofPattern("MMMM uuuu");

 	private Label monthName;

@ -67,7 +83,48 @@ public class CalendarComponent extends CustomComponent {
 	}

 	private void calendarExport(MenuItem ev1) {
-		Notification.show("Do Export");
+
+		try {
+			JasperPrint print = CalendarCreator.createCalendar(new Date());
+		    Window window = new Window();
+		    window.setCaption("View PDF");
+		    AbstractComponent e = createEmbedded(print);
+		    window.setContent(e);
+		    window.setModal(true);
+		    window.setWidth("50%");
+		    window.setHeight("90%");
+		    monthName.getUI().addWindow(window);
+		} catch (JRException e) {
+			log.error("Error Creating Jasper Report.", e);
+			Notification.show("Fehler bei PDF: " + e);
+		} catch (IOException e1) {
+			log.error("Error Creating Jasper Report.", e1);
+			Notification.show("Fehler bei PDF: " + e1);
+		}
+	}
+
+	private AbstractComponent createEmbedded(JasperPrint print) throws IOException, JRException {
+
+		PipedInputStream in = new PipedInputStream();
+		final PipedOutputStream out = new PipedOutputStream(in);
+
+		final StreamResource resource = new StreamResource(() -> in, "invoice.pdf");
+	    resource.setMIMEType("application/pdf");
+	    
+		BrowserFrame c = new BrowserFrame("PDF invoice", resource);
+	    c.setSizeFull();
+	    
+	    ExecutorService exec = Executors.newSingleThreadExecutor();
+	    exec.execute(() -> {
+	    	try {
+				JasperExportManager.exportReportToPdfStream(print, out);
+			} catch (JRException e) {
+				log.error("Error on Export to Pdf.", e);
+				throw new RuntimeException(e);
+			}
+	    });
+	    exec.shutdown();
+	    return c;
 	}

 	private void updateMonthText(ZonedDateTime startDate) {
--- a/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/components/CalendarCreator.java
+++ b/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/components/CalendarCreator.java
@ -0,0 +1,187 @@
+package de.kreth.vaadin.clubhelper.vaadinclubhelper.ui.components;
+
+import java.io.InputStream;
+import java.sql.Timestamp;
+import java.time.YearMonth;
+import java.time.ZoneId;
+import java.util.ArrayList;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.GregorianCalendar;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+
+import net.sf.jasperreports.engine.JRDataSource;
+import net.sf.jasperreports.engine.JRException;
+import net.sf.jasperreports.engine.JRField;
+import net.sf.jasperreports.engine.JasperCompileManager;
+import net.sf.jasperreports.engine.JasperFillManager;
+import net.sf.jasperreports.engine.JasperPrint;
+import net.sf.jasperreports.engine.JasperReport;
+import net.sf.jasperreports.view.JasperViewer;
+
+public class CalendarCreator {
+
+	private Date date;
+	private YearMonth yearMonthObject;
+	private int daysInMonth;
+
+	public static JasperPrint createCalendar(Date date) throws JRException {
+		return new CalendarCreator(date).createCalendar();
+	}
+	
+	CalendarCreator(Date date) {
+		this.date = date;
+		
+		yearMonthObject = YearMonth.from(date.toInstant()
+                .atZone(ZoneId.systemDefault())
+                .toLocalDate());
+		
+		daysInMonth = yearMonthObject.lengthOfMonth();
+	}
+
+	JasperPrint createCalendar() throws JRException {
+
+		Map<String, Object> parameters = new HashMap<>();
+		Timestamp timestamp = new Timestamp(date.getTime());
+		parameters.put("Date", timestamp);
+	
+		InputStream jrxmlResource = CalendarCreator.class.getResourceAsStream("/jasper/calendar_month.jrxml");
+		JasperReport report = JasperCompileManager
+				.compileReport(jrxmlResource);
+		JasperPrint print = JasperFillManager.fillReport(report,
+				parameters, new CalendarSource(yearMonthObject.atDay(1).getDayOfWeek().getValue() -1, daysInMonth));
+
+		return print;
+	}
+
+	private static class CalendarSource implements JRDataSource {
+		
+		private final List<Integer> days;
+		private int index = -1;
+		
+		public CalendarSource(int prefix, int daysInMonth) {
+			days = new ArrayList<>();
+			for (int i=0, limit = daysInMonth + prefix; i<limit; i++) {
+				days.add(i+1);
+			}
+		}
+		
+		@Override
+		public boolean next() throws JRException {
+
+			if (index+1>=days.size()) {
+				return false;
+			}
+			index++;
+			return true;
+		}
+
+		@Override
+		public Object getFieldValue(JRField jrField) throws JRException {
+			System.err.println(String.format("name=%s, type=%s, value=%d, parentProps=%s", jrField.getName(), jrField.getValueClass(), days.get(index), jrField.getParentProperties()));
+			return days.get(index);
+		}
+		
+	}
+	
+	public static void main(String[] args) throws JRException {
+		
+		Locale.setDefault(Locale.GERMANY);
+		
+		Calendar cal = new GregorianCalendar(2018, Calendar.AUGUST, 1);
+		JasperViewer v1 = new JasperViewer(createCalendar(cal.getTime()));
+		v1.setVisible(true);
+
+		cal = new GregorianCalendar(2018, Calendar.SEPTEMBER, 1);
+		JasperViewer v2 = new JasperViewer(createCalendar(cal.getTime()));
+		v2.setVisible(true);
+		
+		cal = new GregorianCalendar(2018, Calendar.FEBRUARY, 1);
+		JasperViewer v3 = new JasperViewer(createCalendar(cal.getTime()));
+		v3.setVisible(true);
+	}
+	
+	/**
+	 * 
+	 * @author markus
+	 *
+	 */
+	public static class DateMetadata {
+		
+		private Calendar date;
+		private int dow;
+		private int dom;
+		private int doy;
+		private int days;
+		private int cells;
+		private int limit;
+
+		public DateMetadata(java.sql.Date date) {
+			this(toCalendar(date.getTime()));
+		}
+
+		public DateMetadata(long date) {
+			this(toCalendar(date));
+		}
+
+		public DateMetadata(Calendar date) {
+			this.date = (Calendar) date.clone();
+			date.set(Calendar.DAY_OF_MONTH, 1);
+			dow = date.get(Calendar.DAY_OF_WEEK);
+			
+//			dow =new Date(date.getYear(), date.getMonth(), 1).getDay();
+			dom = date.get(Calendar.MONTH) + 1;
+			doy = date.get(Calendar.YEAR);
+			days = YearMonth.of(doy, dom).lengthOfMonth();
+			cells = dow-1+days;
+			limit = cells>28?(cells>35?42:35):28;
+		}
+		
+		/**
+		 * 
+		 * @param date
+		 */
+		public DateMetadata(Date date) {
+			this(toCalendar(date.getTime()));
+		}
+
+		public Date getDate() {
+			return date.getTime();
+		}
+
+		public int getDow() {
+			return dow;
+		}
+
+		public int getDom() {
+			return dom;
+		}
+
+		public int getDoy() {
+			return doy;
+		}
+
+		public int getDays() {
+			return days;
+		}
+
+		public int getCells() {
+			return cells;
+		}
+
+		public int getLimit() {
+			return limit;
+		}
+		
+		
+	}
+	
+	private static Calendar toCalendar(long time) {
+		Calendar cal = Calendar.getInstance();
+		cal.setTimeInMillis(time);
+		return cal;
+	}
+}
--- a/src/main/resources/jasper/calendar_month.jrxml
+++ b/src/main/resources/jasper/calendar_month.jrxml
@ -0,0 +1,188 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Created with Jaspersoft Studio version 6.6.0.final using JasperReports Library version 6.6.0  -->
+<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="clubhelper_calendar" columnCount="7" printOrder="Horizontal" pageWidth="792" pageHeight="612" orientation="Landscape" whenNoDataType="AllSectionsNoDetail" columnWidth="110" leftMargin="11" rightMargin="11" topMargin="6" bottomMargin="6" uuid="32abf871-39b8-4cc7-b03c-d950a55e2bfb">
+	<property name="com.jaspersoft.studio.data.sql.tables" value=""/>
+	<property name="com.jaspersoft.studio.data.defaultdataadapter" value="JRSrepo"/>
+	<property name="com.jaspersoft.studio.unit." value="pixel"/>
+	<style name="Style1" forecolor="#050505">
+		<conditionalStyle>
+			<conditionExpression><![CDATA[$F{id}.intValue()%7==0]]></conditionExpression>
+			<style forecolor="#FA0702"/>
+		</conditionalStyle>
+	</style>
+	<parameter name="Date" class="java.sql.Timestamp">
+		<defaultValueExpression><![CDATA[new Date()]]></defaultValueExpression>
+	</parameter>
+	<parameter name="DOW" class="java.lang.Integer" isForPrompting="false">
+		<defaultValueExpression><![CDATA[new Date($P{Date}.getYear(),$P{Date}.getMonth(),1).getDay()]]></defaultValueExpression>
+	</parameter>
+	<parameter name="DOM" class="java.lang.Integer" isForPrompting="false">
+		<defaultValueExpression><![CDATA[$P{Date}.getMonth()+1]]></defaultValueExpression>
+	</parameter>
+	<parameter name="DOY" class="java.lang.Integer" isForPrompting="false">
+		<defaultValueExpression><![CDATA[$P{Date}.getYear()+1900]]></defaultValueExpression>
+	</parameter>
+	<parameter name="Days" class="java.lang.Integer" isForPrompting="false">
+		<defaultValueExpression><![CDATA[java.time.YearMonth.of($P{DOY}.intValue(), $P{DOM}.intValue()).lengthOfMonth()]]></defaultValueExpression>
+	</parameter>
+	<parameter name="Cells" class="java.lang.Integer" isForPrompting="false">
+		<defaultValueExpression><![CDATA[$P{DOW}.intValue()-1+$P{Days}.intValue()]]></defaultValueExpression>
+	</parameter>
+	<parameter name="Limit" class="java.lang.Integer" isForPrompting="false">
+		<defaultValueExpression><![CDATA[$P{Cells}.intValue()>28?($P{Cells}.intValue()>35?42:35):28]]></defaultValueExpression>
+	</parameter>
+	<queryString>
+		<![CDATA[SELECT i as id FROM generate_series(1, $P!{Limit} ) i]]>
+	</queryString>
+	<field name="id" class="java.lang.Integer"/>
+	<field name="Field_Value" class="java.lang.String"/>
+	<variable name="Date" class="java.lang.Integer">
+		<variableExpression><![CDATA[$F{id}.intValue()-$P{DOW}.intValue()+1]]></variableExpression>
+	</variable>
+	<title>
+		<band height="60">
+			<textField pattern="yyyy MMMM">
+				<reportElement x="0" y="0" width="770" height="30" uuid="21293131-3839-43aa-b449-b19867eee2da"/>
+				<textElement textAlignment="Center">
+					<font size="16" isBold="true"/>
+				</textElement>
+				<textFieldExpression><![CDATA[$P{Date}]]></textFieldExpression>
+			</textField>
+			<textField pattern="EEEE">
+				<reportElement mode="Opaque" x="0" y="30" width="110" height="30" forecolor="#FFFCFC" backcolor="#403D3D" uuid="1b600f02-858c-4f32-b65e-d3796aeafcf9">
+					<property name="com.jaspersoft.studio.unit.y" value="pixel"/>
+				</reportElement>
+				<box>
+					<topPen lineWidth="0.0" lineStyle="Solid"/>
+					<leftPen lineWidth="0.0" lineStyle="Solid"/>
+					<bottomPen lineWidth="0.0" lineStyle="Solid"/>
+					<rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#FFFCFC"/>
+				</box>
+				<textElement textAlignment="Center">
+					<font size="14" isBold="true"/>
+				</textElement>
+				<textFieldExpression><![CDATA[new java.util.GregorianCalendar(2018, Calendar.OCTOBER, 1).getTime()]]></textFieldExpression>
+			</textField>
+			<textField pattern="EEEE">
+				<reportElement mode="Opaque" x="110" y="30" width="110" height="30" forecolor="#FFFCFC" backcolor="#403D3D" uuid="2dab9c59-9860-4414-afb1-d3237c6ee8c8">
+					<property name="com.jaspersoft.studio.unit.y" value="pixel"/>
+				</reportElement>
+				<box>
+					<topPen lineWidth="1.0" lineStyle="Solid"/>
+					<leftPen lineWidth="1.0" lineStyle="Solid"/>
+					<bottomPen lineWidth="1.0" lineStyle="Solid"/>
+					<rightPen lineWidth="1.0" lineStyle="Solid"/>
+				</box>
+				<textElement textAlignment="Center">
+					<font size="14" isBold="true"/>
+				</textElement>
+				<textFieldExpression><![CDATA[new java.util.GregorianCalendar(2018, Calendar.OCTOBER, 2).getTime()]]></textFieldExpression>
+			</textField>
+			<textField pattern="EEEE">
+				<reportElement mode="Opaque" x="220" y="30" width="110" height="30" forecolor="#FFFCFC" backcolor="#403D3D" uuid="39d4a93c-d2d6-4c1c-b572-4bcb18ef01aa">
+					<property name="com.jaspersoft.studio.unit.y" value="pixel"/>
+				</reportElement>
+				<box>
+					<topPen lineWidth="1.0" lineStyle="Solid"/>
+					<leftPen lineWidth="1.0" lineStyle="Solid"/>
+					<bottomPen lineWidth="1.0" lineStyle="Solid"/>
+					<rightPen lineWidth="1.0" lineStyle="Solid"/>
+				</box>
+				<textElement textAlignment="Center">
+					<font size="14" isBold="true"/>
+				</textElement>
+				<textFieldExpression><![CDATA[new java.util.GregorianCalendar(2018, Calendar.OCTOBER, 3).getTime()]]></textFieldExpression>
+			</textField>
+			<textField pattern="EEEE">
+				<reportElement mode="Opaque" x="330" y="30" width="110" height="30" forecolor="#FFFCFC" backcolor="#403D3D" uuid="cec2cdaa-3eee-4cd0-9691-d69410726991">
+					<property name="com.jaspersoft.studio.unit.y" value="pixel"/>
+				</reportElement>
+				<box>
+					<topPen lineWidth="1.0" lineStyle="Solid"/>
+					<leftPen lineWidth="1.0" lineStyle="Solid"/>
+					<bottomPen lineWidth="1.0" lineStyle="Solid"/>
+					<rightPen lineWidth="1.0" lineStyle="Solid"/>
+				</box>
+				<textElement textAlignment="Center">
+					<font size="14" isBold="true"/>
+				</textElement>
+				<textFieldExpression><![CDATA[new java.util.GregorianCalendar(2018, Calendar.OCTOBER, 4).getTime()]]></textFieldExpression>
+			</textField>
+			<textField pattern="EEEE">
+				<reportElement mode="Opaque" x="440" y="30" width="110" height="30" forecolor="#FFFCFC" backcolor="#403D3D" uuid="3ecffb41-397a-4243-b12e-e8f5738341b1">
+					<property name="com.jaspersoft.studio.unit.y" value="pixel"/>
+				</reportElement>
+				<box>
+					<topPen lineWidth="1.0" lineStyle="Solid"/>
+					<leftPen lineWidth="1.0" lineStyle="Solid"/>
+					<bottomPen lineWidth="1.0" lineStyle="Solid"/>
+					<rightPen lineWidth="1.0" lineStyle="Solid"/>
+				</box>
+				<textElement textAlignment="Center">
+					<font size="14" isBold="true"/>
+				</textElement>
+				<textFieldExpression><![CDATA[new java.util.GregorianCalendar(2018, Calendar.OCTOBER, 5).getTime()]]></textFieldExpression>
+			</textField>
+			<textField pattern="EEEE">
+				<reportElement mode="Opaque" x="550" y="30" width="110" height="30" forecolor="#FFFCFC" backcolor="#C20802" uuid="f2f2c473-7afb-4177-81a0-280f32264894">
+					<property name="com.jaspersoft.studio.unit.y" value="pixel"/>
+				</reportElement>
+				<box>
+					<topPen lineWidth="1.0" lineStyle="Solid"/>
+					<leftPen lineWidth="1.0" lineStyle="Solid"/>
+					<bottomPen lineWidth="1.0" lineStyle="Solid"/>
+					<rightPen lineWidth="1.0" lineStyle="Solid"/>
+				</box>
+				<textElement textAlignment="Center">
+					<font size="14" isBold="true"/>
+				</textElement>
+				<textFieldExpression><![CDATA[new java.util.GregorianCalendar(2018, Calendar.OCTOBER, 6).getTime()]]></textFieldExpression>
+			</textField>
+			<textField pattern="EEEE">
+				<reportElement mode="Opaque" x="660" y="30" width="110" height="30" forecolor="#FFFCFC" backcolor="#FC0703" uuid="00bc94f5-abd4-40ef-845a-0d9a5fa6fba0">
+					<property name="com.jaspersoft.studio.unit.y" value="pixel"/>
+				</reportElement>
+				<box>
+					<topPen lineWidth="1.0" lineStyle="Solid"/>
+					<leftPen lineWidth="1.0" lineStyle="Solid"/>
+					<bottomPen lineWidth="1.0" lineStyle="Solid"/>
+					<rightPen lineWidth="1.0" lineStyle="Solid"/>
+				</box>
+				<textElement textAlignment="Center">
+					<font size="14" isBold="true"/>
+				</textElement>
+				<textFieldExpression><![CDATA[new java.util.GregorianCalendar(2018, Calendar.OCTOBER, 7).getTime()]]></textFieldExpression>
+			</textField>
+		</band>
+	</title>
+	<detail>
+		<band height="90" splitType="Stretch">
+			<frame>
+				<reportElement mode="Transparent" x="0" y="0" width="110" height="90" backcolor="#F7C86F" uuid="75440275-c439-4c3e-bb77-f9f4d8f48415">
+					<property name="com.jaspersoft.studio.unit.x" value="pixel"/>
+					<property name="com.jaspersoft.studio.unit.y" value="pixel"/>
+					<property name="com.jaspersoft.studio.unit.width" value="pixel"/>
+				</reportElement>
+				<box>
+					<topPen lineWidth="1.0" lineStyle="Solid"/>
+					<leftPen lineWidth="1.0" lineStyle="Solid"/>
+					<bottomPen lineWidth="1.0" lineStyle="Solid"/>
+					<rightPen lineWidth="1.0" lineStyle="Solid"/>
+				</box>
+				<textField>
+					<reportElement style="Style1" mode="Transparent" x="60" y="0" width="50" height="25" isRemoveLineWhenBlank="true" backcolor="#C6EDBB" uuid="733ff549-0109-4f55-b9de-476f0ad9fbeb">
+						<printWhenExpression><![CDATA[$V{Date}.intValue()>0&&$V{Date}.intValue()<=$P{Days}.intValue()]]></printWhenExpression>
+					</reportElement>
+					<textElement textAlignment="Right">
+						<font size="16" isBold="true"/>
+					</textElement>
+					<textFieldExpression><![CDATA[$V{Date}]]></textFieldExpression>
+				</textField>
+				<textField>
+					<reportElement x="0" y="25" width="110" height="65" uuid="52fccbc5-19e8-40be-b02c-3d23afa55a7d"/>
+					<textFieldExpression><![CDATA[$F{Field_Value}]]></textFieldExpression>
+				</textField>
+			</frame>
+		</band>
+	</detail>
+</jasperReport>
--- a/src/test/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/components/CalendarCreatorTest.java
+++ b/src/test/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/components/CalendarCreatorTest.java
@ -0,0 +1,39 @@
+package de.kreth.vaadin.clubhelper.vaadinclubhelper.ui.components;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.util.GregorianCalendar;
+
+import org.junit.jupiter.api.Test;
+
+import com.ibm.icu.util.Calendar;
+
+import de.kreth.vaadin.clubhelper.vaadinclubhelper.ui.components.CalendarCreator.DateMetadata;
+
+class CalendarCreatorTest {
+
+	@Test
+	void testMetadataDays() {
+		DateMetadata meta = new DateMetadata(new GregorianCalendar(2018, Calendar.AUGUST, 21, 17, 11, 13).getTimeInMillis());
+		assertEquals(31, meta.getDays());
+
+		meta = new DateMetadata(new GregorianCalendar(2018, Calendar.SEPTEMBER, 21, 17, 11, 13).getTimeInMillis());
+		assertEquals(30, meta.getDays());
+		
+		meta = new DateMetadata(new GregorianCalendar(2018, Calendar.FEBRUARY, 21, 17, 11, 13).getTimeInMillis());
+		assertEquals(28, meta.getDays());
+	}
+
+	@Test
+	void testMetadataCells() {
+		DateMetadata meta = new DateMetadata(new GregorianCalendar(2018, Calendar.AUGUST, 21, 17, 11, 13).getTimeInMillis());
+		assertEquals(34, meta.getCells());
+
+		meta = new DateMetadata(new GregorianCalendar(2018, Calendar.SEPTEMBER, 21, 17, 11, 13).getTimeInMillis());
+		assertEquals(36, meta.getCells());
+		
+		meta = new DateMetadata(new GregorianCalendar(2018, Calendar.FEBRUARY, 21, 17, 11, 13).getTimeInMillis());
+		assertEquals(32, meta.getCells());
+	}
+
+}