Deployment of BIRT report in simple java application.

Hiiii......

I am new to BIRT report and its deployment.
Can any help me in deploying BIRT report in simple java application.
I tried using servlets also but i'm getting a lot of error...

This is the code i tried to execute.
package report;

import org.eclipse.birt.report.engine.api.*;
import org.eclipse.birt.report.engine.api.EngineConfig;
import org.eclipse.birt.report.engine.api.IReportEngine;
import org.eclipse.birt.report.engine.api.IReportEngineFactory;

import org.eclipse.birt.core.framework.Platform;

/**
*
* @author training
*/
public class rpt {
public void execute(){
try{

EngineConfig config = new EngineConfig();

config.setEngineHome( " F:/report/birt-runtime-2_5_0/ReportEngine" );

Platform.startup( config );
IReportEngineFactory factory = (IReportEngineFactory) Platform.createFactoryObject( IReportEngineFactory.EXTENSION_REPORT_ENGINE_FACTORY );

IReportEngine engine = factory.createReportEngine( config );
IReportRunnable design = engine.openReportDesign("F:/report/rpt2.rptdesign");

IRunAndRenderTask task = engine.createRunAndRenderTask(design);

task.getAppContext().put(EngineConstants.APPCONTEXT_CLASSLOADER_KEY, rpt.class.getClassLoader());

task.setParameterValue("Top Percentage", (new Integer(3)));;
task.setParameterValue("Top Count", (new Integer(5)));
task.validateParameters();

HTMLRenderOption options = new HTMLRenderOption();
options.setOutputFileName("F:/report/TopNPercent.html");
options.setOutputFormat("html");

options.setEmbeddable(false);

task.setRenderOption(options);
task.run();
task.close();
}catch(Exception e)
{
System.out.println("excepton : "+e);
}
}
}

but i'm getting the error
"excepton : org.eclipse.birt.core.exception.BirtException: Cant startup the OSGI framework"

Can any one guide me....
Thanks for your help in advance

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Comments

johnw

Your code looks fine (I wouldnt put the class loader in the context, but thats just me).

Check your BIRT runtime folder. Also, move the platform startup and report engine creation to either the constructor or init function, you only need to load this once, not for every report execute.

hisurya

hi ...
first of all thanks for the suggestion ....
As you suggested i wrote sperate function for platform startup and engine creation.
also i made a function name runAndRenderReport( )

protected int runAndRenderReport( )
{
try
{
// parse the source to get the report runnable
IReportRunnable runnable = engine.openReportDesign( "F:reportrpt2.rptdesign");
// validate the input paramter values
HashMap inputValues = evaluateParameterValues( runnable );
//
IRunAndRenderTask task = engine.createRunAndRenderTask( runnable );
// task.setParameterValues( inputValues );

// set report render options
IRenderOption options = new RenderOption();

options.setOutputFormat( "html");

// setup the output file
options.setOutputFileName( "F:reportreport.html" );

// setup the application context
if ( format.equalsIgnoreCase( "html" ) )
{
HTMLRenderOption htmlOptions = new HTMLRenderOption( options );
if ( "ReportletNoCSS".equals( htmlType ) )
htmlOptions.setEmbeddable( true );
// setup the output encoding
htmlOptions.setUrlEncoding( encoding );
htmlOptions.setHtmlPagination( true );
htmlOptions.setImageDirectory( "image" ); //$NON-NLS-1$
}

// set the render options
task.setRenderOption( options );

// setup the locale
task.setLocale( getLocale( locale ) );

task.run( );
return 0;
}
catch ( EngineException e )
{
logger.log( Level.SEVERE, e.getMessage( ), e );
return -1;
}
}

But now i'm getting the error.

"Exception in thread "main" java.lang.NullPointerException
at report.ReportRunner.runAndRenderReport(ReportRunner.java:208)"

I had already made a report named rpt2.rptdesign and is there in the folder "F:/report/rpt2.rptdesign"

I dont knw where i am getting wrong.
Please help

Virgil Dodson

There is a similar thread at <a class='bbc_url' href='http://www.birt-exchange.org/forum/deploying-integrating-birt-report-engine-applications/13290-platform-createfactoryobject-returns-null.html'>http://www.birt-exchange.org/forum/deploying-integrating-birt-report-engine-applications/13290-platform-createfactoryobject-returns-null.html</a> that seems to talk about some of the same problems. There are several tips that seems to help others there.