Acually I have to plot timeSeries using jasperReport . How to generate the time series graph for different data sets? I am able to generate the time series graph when i have one data set to plot over a period of time. However when i have multiple data set to plot then i am facing problem.
I am using List data source.
public class KpiReportPoints {
private String deviceDn;
private List<KpiReportPoint> kpiPoints;
}
public class KPiReportPoint{
private Date time;
private Double value;
public Date getTime() {
return time;
}
/**
* @param time the time to set
*/
public void setTime(Date time) {
this.time = time;
}
/**
* @return the value
*/
public Double getValue() {
return value;
}
/**
* @param value the value to set
*/
public void setValue(Double value) {
this.value = value;
}
@Override
public int hashCode() {
return time.hashCode();
}
@Override
public boolean equals(Object obj) {
boolean equal = false;
if (obj instanceof KPIReportPoint){
KPIReportPoint point = (KPIReportPoint) obj;
equal = time.equals(point.getTime())&& value.equals(point.getValue());
}
return equal;
}
@Override
public int compareTo(KPIReportPoint o) {
return this.time.compareTo(o.getTime());
}
}
Both the above classes have their getters and setters and all are public ,so no problem according to me is there in the definition of each. I am passing the populated List<KpiReportPoints> as JRBEanCollectionDataSource(kpiReportpointsList)
Now below is my jrxml:
<?xml version="1.0" encoding="UTF-8"?>
<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="KPI_Reports" pageWidth="842" pageHeight="595" orientation="Landscape" columnWidth="802" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20">
<property name="ireport.zoom" value="1.0"/>
<property name="ireport.x" value="0"/>
<property name="ireport.y" value="191"/>
<subDataset name="Dataset">
<field name="time" class="java.util.Date"/>
<field name="value" class="java.lang.Double"/>
</subDataset>
<parameter name="X_UNIT" class="java.lang.String">
<parameterDescription><![CDATA[]]></parameterDescription>
<defaultValueExpression><![CDATA["Date"]]></defaultValueExpression>
</parameter>
<parameter name="Y_UNIT" class="java.lang.String">
<parameterDescription><![CDATA[]]></parameterDescription>
<defaultValueExpression><![CDATA["%"]]></defaultValueExpression>
</parameter>
<parameter name="REPORT_NAME" class="java.lang.String">
<defaultValueExpression><![CDATA["KPI Report"]]></defaultValueExpression>
</parameter>
<parameter name="from" class="java.util.Date"/>
<parameter name="to" class="java.util.Date"/>
<field name="deviceDn" class="java.lang.String"/>
<field name="kpiPoints" class="java.util.List"/>
<background>
<band splitType="Stretch"/>
</background>
<title>
<band height="20" splitType="Stretch">
<textField pattern="EEE, d MMM yyyy HH:mm:ss Z" isBlankWhenNull="true">
<reportElement x="513" y="0" width="253" height="20"/>
<textElement/>
<textFieldExpression><![CDATA[new java.util.Date()]]></textFieldExpression>
</textField>
</band>
</title>
<summary>
<band height="443">
<timeSeriesChart>
<chart isShowLegend="true" customizerClass="com.ipaccess.nos.business.pm.impl.KPIChartCustomizer">
<reportElement mode="Opaque" x="0" y="0" width="766" height="443" isPrintInFirstWholeBand="true"/>
<chartTitle position="Top">
<font size="14" isBold="true" pdfFontName="Courier-Bold" isPdfEmbedded="true"/>
<titleExpression><![CDATA[$P{REPORT_NAME}]]></titleExpression>
</chartTitle>
<chartSubtitle/>
<chartLegend position="Bottom"/>
</chart>
<timeSeriesDataset timePeriod="Second">
<datasetRun subDataset="Dataset">
<dataSourceExpression><![CDATA[new net.sf.jasperreports.engine.data.JRBeanCollectionDataSource($F{kpiPoints})]]></dataSourceExpression>
</datasetRun>
<timeSeries>
<seriesExpression><![CDATA[$F{deviceDn}]]></seriesExpression>
<timePeriodExpression><![CDATA[$F{time}]]></timePeriodExpression>
<valueExpression><![CDATA[$F{value}]]></valueExpression>
</timeSeries>
</timeSeriesDataset>
<timeSeriesPlot isShowLines="true" isShowShapes="true">
<plot labelRotation="90.0"/>
<timeAxisLabelExpression><![CDATA[$P{X_UNIT}]]></timeAxisLabelExpression>
<valueAxisLabelExpression><![CDATA[$P{Y_UNIT}]]></valueAxisLabelExpression>
<valueAxisFormat>
<axisFormat>
<labelFont>
<font size="10"/>
</labelFont>
</axisFormat>
</valueAxisFormat>
<domainAxisMinValueExpression><![CDATA[$P{from}]]></domainAxisMinValueExpression>
<domainAxisMaxValueExpression><![CDATA[$P{to}]]></domainAxisMaxValueExpression>
</timeSeriesPlot>
</timeSeriesChart>
</band>
</summary>
</jasperReport>
This issue is jrxml compiles fine but on trying to generate a report it throws the exception :
[#|2014-10-10T09:59:05.769+0530|SEVERE|glassfish3.1.1|javax.enterprise.system.std.com.sun.enterprise.server.logging|_ThreadID=290;_ThreadName=Thread-3;|net.sf.jasperreports.engine.JRException: Error retrieving field value from bean : time
at net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getBeanProperty(JRAbstractBeanDataSource.java:127)
at net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getFieldValue(JRAbstractBeanDataSource.java:100)
at net.sf.jasperreports.engine.data.JRBeanCollectionDataSource.getFieldValue(JRBeanCollectionDataSource.java:104)
at net.sf.jasperreports.engine.fill.JRFillData
I have been completely mad with this issue and not able to find even a single problem in the above code which may cause this . If any of you is able to see that and have any time faced this error then please give me some clue as to what is wrong . Thanks a lot in advance
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