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Merging BIRT .rptdesign [message #686276]

Tue, 21 June 2011 19:49

Eclipse User

I'm a newb to BIRT and I'm goofing around with manipulating the actual .rptdesign files seeing if I can create some kind of FrankenBIRT implementation.

I am attempting to merge/append 2 .rptdesign file bodies into one, and the basic methodology is similar to this (simplified version):

SlotHandle reportSourceBodyHandle = reportHandleSource.getBody();
SlotHandle reportDestinationBodyHandle = reportHandleDestination.getBody();

Iterator iter = reportSourceBodyHandle.iterator();
while(iter.hasNext()){
   DesignElementHandle item = (DesignElementHandle)iter.next();
   reportDestinationBodyHandle.add(item);
}

It gives me an error stating:
'Element "report.Body[0]" is not allowed to be added into the (Body) of "Report Design", for it is already in the design.'

The destination doc doesn't have anything in the body, so I'm assuming it's talking about the reportDestinationBodyHandle object having that already defined, but I'm not sure how to get around this.

Re: Merging BIRT .rptdesign [message #686652 is a reply to message #686276]

Wed, 22 June 2011 13:00

Eclipse User

Make a copy of the item.

package DEAPI;

import java.io.IOException;
import java.util.Iterator;

import org.eclipse.birt.core.framework.Platform;
import org.eclipse.birt.report.model.api.DesignConfig;
import org.eclipse.birt.report.model.api.DesignElementHandle;
import org.eclipse.birt.report.model.api.IDesignEngine;
import org.eclipse.birt.report.model.api.IDesignEngineFactory;
import org.eclipse.birt.report.model.api.ReportDesignHandle;
import org.eclipse.birt.report.model.api.SessionHandle;
import org.eclipse.birt.report.model.api.SlotHandle;
import org.eclipse.birt.report.model.api.activity.SemanticException;

import com.ibm.icu.util.ULocale;

/**
* Simple BIRT Design Engine API (DEAPI) demo.
*/

public class MergeReports
{

public static void main( String[] args )
{
try
{
buildReport( );
}
catch ( IOException e )
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch ( SemanticException e )
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}

static void buildReport( ) throws IOException, SemanticException
{
// Create a session handle. This is used to manage all open designs.
// Your app need create the session only once.

DesignConfig config = new DesignConfig( );
config.setBIRTHome("C:/birt/birt-runtime-2_6_1/birt-runtime-2_6_1/ReportEngine");
IDesignEngine engine = null;
try{

Platform.startup( config );
IDesignEngineFactory factory = (IDesignEngineFactory) Platform
.createFactoryObject( IDesignEngineFactory.EXTENSION_DESIGN_ENGINE_FACTORY );
engine = factory.createDesignEngine( config );

}catch( Exception ex){
ex.printStackTrace();
}

SessionHandle session = engine.newSessionHandle( ULocale.ENGLISH ) ;

ReportDesignHandle design1 = null;
ReportDesignHandle design2 = null;

try{
design1 = session.openDesign("Reports/customers.rptdesign" );
design2 = session.openDesign("Reports/empty.rptdesign" );

SlotHandle reportSourceBodyHandle = design1.getBody();
SlotHandle reportDestinationBodyHandle = design2.getBody();

Iterator iter = reportSourceBodyHandle.iterator();
while(iter.hasNext()){
DesignElementHandle item = (DesignElementHandle)iter.next();
DesignElementHandle cpy = item.copy().getHandle(null);
reportDestinationBodyHandle.add(cpy);
}

design2.saveAs("Reports/merged.rptdesign");
design2.close();
design1.close( );
Platform.shutdown();

}catch(Exception e){
e.printStackTrace();
}
System.out.println("Finished");

// We're done!
}
}

This code does not handle parameters, styles, cubes etc.

Jason

Re: Merging BIRT .rptdesign [message #689557 is a reply to message #686652]

Mon, 27 June 2011 16:31

Eclipse User

Thank you. That worked for what I needed it to do.

It seems it's similar to the DOM (where you have to import nodes into a document before you can add them to other nodes) and I was actually looking for something like an import method. I guess this is ROM's process of doing so.

Your answer is greatly appreciated!

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