Re: [birt-charting-dev] How to create Bar Chart using Chart API

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Re: [birt-charting-dev] How to create Bar Chart using Chart API

From: "saiful islam" <saiful.raju@xxxxxxxxx>
Date: Sat, 3 Jun 2006 11:37:03 +0600
Delivered-to: birt-charting-dev@xxxxxxxxxxx
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i have same porblem

On 6/3/06, saiful islam <rajumail.java@xxxxxxxxx> wrote:

i know it is possible create bar chart in programitacally, but couldnt do that i got some errors when try to generate report desing file programatically, any knows how to solve it . here is my class which create a bar chart

package report.chart;

import java.io.IOException;

import org.eclipse.birt.chart.model.ChartWithAxes;
import org.eclipse.birt.chart.model.attribute.Anchor;
import org.eclipse.birt.chart.model.attribute.AxisType;
import org.eclipse.birt.chart.model.attribute.IntersectionType ;
import org.eclipse.birt.chart.model.attribute.Position;
import org.eclipse.birt.chart.model.attribute.TickStyle;
import org.eclipse.birt.chart.model.attribute.impl.ColorDefinitionImpl;
import org.eclipse.birt.chart.model.attribute.impl.GradientImpl ;
import org.eclipse.birt.chart.model.component.Axis;
import org.eclipse.birt.chart.model.component.Series;
import org.eclipse.birt.chart.model.component.impl.SeriesImpl;
import org.eclipse.birt.chart.model.data.Query ;
import org.eclipse.birt.chart.model.data.SeriesDefinition;
import org.eclipse.birt.chart.model.data.impl.QueryImpl;
import org.eclipse.birt.chart.model.data.impl.SeriesDefinitionImpl;
import org.eclipse.birt.chart.model.impl.ChartWithAxesImpl ;
import org.eclipse.birt.chart.model.layout.Legend;
import org.eclipse.birt.chart.model.layout.Plot;
import org.eclipse.birt.chart.model.type.BarSeries;
import org.eclipse.birt.chart.model.type.impl.BarSeriesImpl ;
import org.eclipse.birt.chart.reportitem.ChartReportItemImpl;
import org.eclipse.birt.report.model.api.DesignElementHandle;
import org.eclipse.birt.report.model.api.DesignEngine;
import org.eclipse.birt.report.model.api.ElementFactory ;
import org.eclipse.birt.report.model.api.ExtendedItemHandle;
import org.eclipse.birt.report.model.api.OdaDataSetHandle;
import org.eclipse.birt.report.model.api.OdaDataSourceHandle;
import org.eclipse.birt.report.model.api.PropertyHandle ;
import org.eclipse.birt.report.model.api.ReportDesignHandle;
import org.eclipse.birt.report.model.api.SessionHandle;
import org.eclipse.birt.report.model.api.TableHandle;
import org.eclipse.birt.report.model.api.activity.SemanticException ;
import org.eclipse.birt.report.model.api.command.ContentException;
import org.eclipse.birt.report.model.api.command.NameException;
import org.eclipse.birt.report.model.api.elements.structures.DataSetParameter;
import org.eclipse.birt.report.model.api.extension.ExtendedElementException;
import org.eclipse.birt.report.model.metadata.MetaDataDictionary;

public class BarChart {
    private ReportDesignHandle reportDesignHandle = null;
    private ElementFactory elementFactory = null;
    private OdaDataSourceHandle customerDataSource = null;
    private String dataSourceName = "Customer";
    private String customerdataSetName = "Customer";
    private String query = "select amount,customerNumber from payments";
    MetaDataDictionary dict;

    public void createReport( ) throws SemanticException, IOException
    {
        init();
        createMasterPages( );
        createDataSources( );
        createDataSets();
        createBody( );
        String outputPath = "D:" ;
        reportDesignHandle.saveAs ( outputPath + "/" + "BarChart.rptdesign" );//$NON-NLS-1$//$NON-NLS-2$
    }
    private void createMasterPages( ) throws ContentException, NameException
    {
        DesignElementHandle simpleMasterPage = elementFactory.newSimpleMasterPage( "Master Page" );//$NON-NLS-1$
        reportDesignHandle.getMasterPages( ).add( simpleMasterPage );
    }
    private void init(){
        //we need a handle of session of design engine
        SessionHandle sessionHandle = DesignEngine.newSession(null);
        reportDesignHandle = sessionHandle.createDesign();
        elementFactory = reportDesignHandle.getElementFactory();

    }

        private void createDataSets() throws SemanticException{
            //type of the data set or extension ID
            String dataSetType = "org.eclipse.birt.report.data.oda.jdbc.JdbcSelectDataSet ";
            //name of the data source

            //query to be send to the database
            OdaDataSetHandle dataSetHandle = null;
            DataSetParameter theDataSetParameter = null;
            PropertyHandle propertyHandle = null;

            //customer dataset
             dataSetHandle = elementFactory.newOdaDataSet(customerdataSetName,dataSetType);
             dataSetHandle.setQueryText (query);
             dataSetHandle.setDataSource(dataSourceName);
             reportDesignHandle.getDataSets().add(dataSetHandle);
    }

    private void createDataSources( ) throws SemanticException
    {

        //name of the data source

        //type of the data source
        String extensionID = "org.eclipse.birt.report.data.oda.jdbc";
        //driver class name
        String driverClassName = "com.mysql.jdbc.Driver";
        //database url
        String driverURL = "jdbc:mysql://localhost:3306/classicmodels";
        //user name
        String userName = "root";
        //password
        String userPassword = "raju";

        //now make a data source with the dataSourceName and extensionID.
        customerDataSource = elementFactory.newOdaDataSource (dataSourceName,extensionID);
        //set the driver class name
        customerDataSource.setProperty("odaDriverClass",driverClassName);
        //set the database url
        customerDataSource.setProperty ("odaURL",driverURL);
        //set the user name
        customerDataSource.setProperty("odaUser",userName);
        //set the password
        customerDataSource.setProperty("odaPassword",userPassword);

        System.out.println("odaURL is " + customerDataSource.getProperty("odaURL"));
        System.out.println("odaUser is " + customerDataSource.getProperty("odaUser"));
        System.out.println("odaPassword is " + customerDataSource.getProperty("odaPassword"));


        //so far we have developed our data source DOM so now
        //lets give the handle to the reportDesignHandle .
        reportDesignHandle.getDataSources().add(customerDataSource);
    }
   private void createBody() throws SemanticException{

        TableHandle table = elementFactory.newTableItem(null,1,1,1,1);
        table.setWidth("100%");
        reportDesignHandle.getBody().add(createMulitYSeriesChart( ));
//        RowHandle rowHandle = (RowHandle)table.getDetail().get(0);
//        CellHandle cellHandle = (CellHandle)rowHandle.getCells().get(0);
//        cellHandle.getContent().add(createPieChart());
    }

    protected ExtendedItemHandle createMulitYSeriesChart( )
    {

        ExtendedItemHandle eih = elementFactory.newExtendedItem ( null, "Chart" );//$NON-NLS-1$
        try
        {
            eih.setHeight( "5.406in" );//$NON-NLS-1$
            eih.setWidth( "7.927in" );//$NON-NLS-1$
            eih.setProperty ( ExtendedItemHandle.DATA_SET_PROP, customerdataSetName );//$NON-NLS-1$
        }
        catch ( SemanticException e )
        {
            e.printStackTrace( );
        }

        ChartWithAxes cwaBar = ChartWithAxesImpl.create( );
        cwaBar.setType("Bar Chart");
        cwaBar.setSubType("Side-by-side");

        // Plot
        cwaBar.getBlock( ).setBackground( ColorDefinitionImpl.WHITE( ) );
        Plot p = cwaBar.getPlot( );
        p.getClientArea( )
                .setBackground( GradientImpl.create( ColorDefinitionImpl.create( 225,
                        225,
                        255 ),
                        ColorDefinitionImpl.create( 255, 255, 225 ),
                        -35,
                        false ) );
        p.getOutline( ).setVisible( true );

        // Title
        cwaBar.getTitle( )
                .getLabel( )
                .getCaption( )
                .setValue( "Bar Chart with Multiple Y Series" );//$NON-NLS-1$

        // Legend
        Legend lg = cwaBar.getLegend( );
        lg.getText( ).getFont( ).setSize( 16 );
        lg.getInsets( ).set( 10, 5, 0, 0 );
        lg.setAnchor( Anchor.NORTH_LITERAL );

        // X-Axis
        Axis xAxisPrimary = cwaBar.getPrimaryBaseAxes( )[0];
        xAxisPrimary.setType( AxisType.TEXT_LITERAL );
        xAxisPrimary.getMajorGrid( ).setTickStyle( TickStyle.BELOW_LITERAL );
        xAxisPrimary.getOrigin( ).setType( IntersectionType.VALUE_LITERAL );
        xAxisPrimary.getTitle( ).getCaption( ).setValue( "Regional Markets" ); //$NON-NLS-1$
        xAxisPrimary.setLabelPosition ( Position.BELOW_LITERAL );
        xAxisPrimary.setTitlePosition( Position.BELOW_LITERAL );

        // Y-Axis
        Axis yAxisPrimary = cwaBar.getPrimaryOrthogonalAxis( xAxisPrimary );
        yAxisPrimary.getMajorGrid( ).setTickStyle( TickStyle.LEFT_LITERAL );
        yAxisPrimary.getTitle( )
                .getCaption( )
                .setValue( "Sales vs. Net Profit ($Million)" );//$NON-NLS-1$

        // Data Set
//        TextDataSet categoryValues = TextDataSetImpl.create( new String[]{
//                "Europe", "Asia", "North America"} );//$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$
//        NumberDataSet orthoValues1 = NumberDataSetImpl.create( new double[]{
//                26.17, 34.21, 21.5
//        } );
//        NumberDataSet orthoValues2 = NumberDataSetImpl.create( new double[]{
//                4.81, 3.55, -5.26
//        } );

        // X-Series
        Series seCategory = SeriesImpl.create( );
        Query query = QueryImpl.create( "row[\"amount\"]" );//$NON-NLS-1$
        seCategory.getDataDefinition( ).add( query );

        //seCategory.setDataSet( dataset );

        SeriesDefinition sdX = SeriesDefinitionImpl.create( );
        xAxisPrimary.getSeriesDefinitions( ).add( sdX );
        sdX.getSeries( ).add( seCategory );

        // Y-Series (1)
        BarSeries bs = (BarSeries) BarSeriesImpl.create( );
        bs.setSeriesIdentifier( "Sales" );//$NON-NLS-1$
        Query query1 = QueryImpl.create( "row[\"customerNumber\"]" );//$NON-NLS-1$
        bs.getDataDefinition( ).add( query1 );

//        bs.setDataSet( query1 );
        bs.setRiserOutline( null );
        bs.getLabel( ).setVisible( true );
        bs.setLabelPosition( Position.INSIDE_LITERAL );

        SeriesDefinition sdY1 = SeriesDefinitionImpl.create( );
        sdY1.getSeriesPalette( ).update( -2 );
        yAxisPrimary.getSeriesDefinitions( ).add( sdY1 );
        sdY1.getSeries( ).add( bs );

        // Y-Series (2)
//        BarSeries bs2 = (BarSeries) BarSeriesImpl.create( );
//        bs2.setSeriesIdentifier( "Net Profit" );//$NON-NLS-1$
//        Query query2 = QueryImpl.create( "row[\"customerNumber\"]" );//$NON-NLS-1$
//        bs2.getDataDefinition( ).add( query2 );
//        bs2.setRiserOutline( null );
//        bs2.getLabel( ).setVisible( true );
//        bs2.setLabelPosition( Position.INSIDE_LITERAL );

//        SeriesDefinition sdY2 = SeriesDefinitionImpl.create( );
//        sdY2.getSeriesPalette( ).update( -3 );
//        yAxisPrimary.getSeriesDefinitions( ).add( sdY2 );
//        sdY2.getSeries( ).add( bs2 );

        ChartReportItemImpl crii;
        try
        {
            //Add ChartReportItemImpl to ExtendedItemHandle
            crii = (ChartReportItemImpl) eih.getReportItem( );
            //Add chart instance to ChartReportItemImpl
            crii.setProperty( "chart.instance", cwaBar );//$NON-NLS-1$
        }
        catch ( ExtendedElementException e )
        {
            e.printStackTrace( );
        }

        return eih;


    }
   }

Exception goes here

SEVERE: Exception
org.eclipse.birt.chart.exception.ChartException: A data definition _expression_ must be associated with the value (Y) series-0 defined by org.eclipse.birt.chart.model.type.impl.LineSeriesImpl@f27b6e (visible: true, seriesIdentifier: B Corp., labelPosition: Above, stacked: false, translucent: <unset>) (paletteLineColor: <unset>, curve: <unset>).
at org.eclipse.birt.chart.internal.factory.DataProcessor.getRowExpressions(DataProcessor.java:545)
at org.eclipse.birt.chart.internal.factory.DataProcessor.getRowExpressions(DataProcessor.java:237)
at org.eclipse.birt.chart.factory.Generator.getRowExpressions (Generator.java:489)
at org.eclipse.birt.chart.reportitem.QueryHelper.build(QueryHelper.java:131)
at org.eclipse.birt.chart.reportitem.ChartReportItemQueryImpl.getReportQueries(ChartReportItemQueryImpl.java:101)
at org.eclipse.birt.report.engine.data.dte.ReportQueryBuilder$QueryBuilderVisitor.visitExtendedItem(ReportQueryBuilder.java:339)
at org.eclipse.birt.report.engine.ir.ExtendedItemDesign.accept(ExtendedItemDesign.java:30)
at org.eclipse.birt.report.engine.data.dte.ReportQueryBuilder$QueryBuilderVisitor.buildQuery(ReportQueryBuilder.java:193)
at org.eclipse.birt.report.engine.data.dte.ReportQueryBuilder.build(ReportQueryBuilder.java :114)
at org.eclipse.birt.report.engine.data.dte.DteDataEngine.prepare(DteDataEngine.java:162)
at org.eclipse.birt.report.engine.executor.ReportExecutor.execute(ReportExecutor.java:107)
at org.eclipse.birt.report.engine.executor.ReportExecutor.execute (ReportExecutor.java:89)
at org.eclipse.birt.report.engine.api.impl.RunAndRenderTask.run(RunAndRenderTask.java:175)
at org.eclipse.birt.report.services.ReportEngineService.runAndRenderReport(Unknown Source)
at org.eclipse.birt.report.viewer.aggregation.layout.EngineFragment.doService(Unknown Source)
at org.eclipse.birt.report.viewer.aggregation.BaseFragment.service(Unknown Source)
at org.eclipse.birt.report.viewer.servlet.ViewerServlet.doGet (Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:327)
at javax.servlet.http.HttpServlet.service(HttpServlet.java :856)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:284)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204)
at org.apache.catalina.core.StandardWrapperValve.invoke (StandardWrapperValve.java:256)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
at org.apache.catalina.core.StandardContextValve.invokeInternal (StandardContextValve.java:245)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:199)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:195)
at org.apache.catalina.core.StandardValveContext.invokeNext (StandardValveContext.java:151)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:164)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:149)
at org.apache.catalina.core.StandardPipeline.invoke (StandardPipeline.java:564)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:156)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.core.StandardPipeline.invoke (StandardPipeline.java:564)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:972)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:211)
at org.apache.coyote.http11.Http11Processor.process (Http11Processor.java:805)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:696)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:605)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:677)
at java.lang.Thread.run(Thread.java:595)
Jun 1, 2006 7:17:42 PM org.eclipse.birt.chart.exception.ChartException logThis
SEVERE: Exception
org.eclipse.birt.chart.exception.ChartException: The DataSet bound to the chart returned no rows.
at org.eclipse.birt.chart.reportitem.ChartReportItemPresentationImpl.onRowSets(ChartReportItemPresentationImpl.java :371)
at org.eclipse.birt.report.engine.presentation.LocalizedEmitter.startExtendedContent(LocalizedEmitter.java:655)
at org.eclipse.birt.report.engine.presentation.LocalizedEmitter.startForeign(LocalizedEmitter.java :434)
at org.eclipse.birt.report.engine.presentation.WrappedEmitter.startForeign(WrappedEmitter.java:209)
at org.eclipse.birt.report.engine.presentation.DefaultPaginationEmitter.startForeign(DefaultPaginationEmitter.java :313)
at org.eclipse.birt.report.engine.executor.ExtendedItemExecutor.execute(ExtendedItemExecutor.java:100)
at org.eclipse.birt.report.engine.executor.ReportExecutorVisitor.visitExtendedItem(ReportExecutorVisitor.java :81)
at org.eclipse.birt.report.engine.ir.ExtendedItemDesign.accept(ExtendedItemDesign.java:30)
at org.eclipse.birt.report.engine.executor.ReportExecutor.execute(ReportExecutor.java:125)
at org.eclipse.birt.report.engine.executor.ReportExecutor.execute (ReportExecutor.java:89)
at org.eclipse.birt.report.engine.api.impl.RunAndRenderTask.run(RunAndRenderTask.java:175)
at org.eclipse.birt.report.services.ReportEngineService.runAndRenderReport(Unknown Source)
at org.eclipse.birt.report.viewer.aggregation.layout.EngineFragment.doService(Unknown Source)
at org.eclipse.birt.report.viewer.aggregation.BaseFragment.service(Unknown Source)
at org.eclipse.birt.report.viewer.servlet.ViewerServlet.doGet (Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:327)
at javax.servlet.http.HttpServlet.service(HttpServlet.java :856)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:284)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204)
at org.apache.catalina.core.StandardWrapperValve.invoke (StandardWrapperValve.java:256)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
at org.apache.catalina.core.StandardContextValve.invokeInternal (StandardContextValve.java:245)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:199)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:195)
at org.apache.catalina.core.StandardValveContext.invokeNext (StandardValveContext.java:151)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:164)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:149)
at org.apache.catalina.core.StandardPipeline.invoke (StandardPipeline.java:564)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:156)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.core.StandardPipeline.invoke (StandardPipeline.java:564)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:972)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:211)
at org.apache.coyote.http11.Http11Processor.process (Http11Processor.java:805)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:696)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:605)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:677)
at java.lang.Thread.run(Thread.java:595)
Jun 1, 2006 7:17:42 PM org.eclipse.birt.chart.reportitem.ChartReportItemPresentationImpl onRowSets
SEVERE: Exception
org.eclipse.birt.chart.exception.ChartException: The DataSet bound to the chart returned no rows.
at org.eclipse.birt.chart.reportitem.ChartReportItemPresentationImpl.onRowSets(ChartReportItemPresentationImpl.java :371)
at org.eclipse.birt.report.engine.presentation.LocalizedEmitter.startExtendedContent(LocalizedEmitter.java:655)
at org.eclipse.birt.report.engine.presentation.LocalizedEmitter.startForeign(LocalizedEmitter.java :434)
at org.eclipse.birt.report.engine.presentation.WrappedEmitter.startForeign(WrappedEmitter.java:209)
at org.eclipse.birt.report.engine.presentation.DefaultPaginationEmitter.startForeign(DefaultPaginationEmitter.java :313)
at org.eclipse.birt.report.engine.executor.ExtendedItemExecutor.execute(ExtendedItemExecutor.java:100)
at org.eclipse.birt.report.engine.executor.ReportExecutorVisitor.visitExtendedItem(ReportExecutorVisitor.java :81)
at org.eclipse.birt.report.engine.ir.ExtendedItemDesign.accept(ExtendedItemDesign.java:30)
at org.eclipse.birt.report.engine.executor.ReportExecutor.execute(ReportExecutor.java:125)
at org.eclipse.birt.report.engine.executor.ReportExecutor.execute (ReportExecutor.java:89)
at org.eclipse.birt.report.engine.api.impl.RunAndRenderTask.run(RunAndRenderTask.java:175)
at org.eclipse.birt.report.services.ReportEngineService.runAndRenderReport(Unknown Source)
at org.eclipse.birt.report.viewer.aggregation.layout.EngineFragment.doService(Unknown Source)
at org.eclipse.birt.report.viewer.aggregation.BaseFragment.service(Unknown Source)
at org.eclipse.birt.report.viewer.servlet.ViewerServlet.doGet (Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:327)
at javax.servlet.http.HttpServlet.service(HttpServlet.java :856)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:284)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204)
at org.apache.catalina.core.StandardWrapperValve.invoke (StandardWrapperValve.java:256)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
at org.apache.catalina.core.StandardContextValve.invokeInternal (StandardContextValve.java:245)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:199)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:195)
at org.apache.catalina.core.StandardValveContext.invokeNext (StandardValveContext.java:151)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:164)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:149)
at org.apache.catalina.core.StandardPipeline.invoke (StandardPipeline.java:564)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:156)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.core.StandardPipeline.invoke (StandardPipeline.java:564)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:972)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:211)
at org.apache.coyote.http11.Http11Processor.process (Http11Processor.java:805)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:696)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:605)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:677)
at java.lang.Thread.run(Thread.java:595)

--

References:
- [birt-charting-dev] How to create Bar Chart using Chart API
  - From: saiful islam

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