Exporter un rapport en xls (MSExcel)

[tiboudchou]

Bonjour tout le monde,

Je génère des rapports avec le BIRT Engine (API BIRT). Donc je me sers de task, etc...
J'exporte en pdf, en html, nickel.

Je m'intérèsse maintenant au xls. Problème, BIRT, en natif, ne propose pas ça.
Je me tourne donc vers Tribix et son exportateur excel :
http://qauck.blogspot.com/
http://qauck.wordpress.com/
http://sourceforge.net/projects/tribix/

Bien que j'arrive à visualiser des rapports en xls sous Eclipse avec la fonction "preview" (cela veut donc dire que je l'ai bien installé), je n'arrive pas à générer un xls avec le Report Engine.

Quelqu'un y est-il arrivé ?
Avez-vous une solution ?

Merci

[BiM]

Si tu trouves la solution, fais moi signe s'il te plait

[tiboudchou]

lol ah ben super, j'suis pas arrivé
En fait, dans le patch pour l'ermitter Excel, on voit que RenderTask est mis à jour pour supporter les formats xls et ppt.
Le problème, c'est que le format est également "checké" par la classe "ExtensionManager", qui elle, n'est PAS patchée ... Donc, quand je mets le format xls, je me fais jeter avec un joli

org.eclipse.birt.report.engine.api.EngineException: The output format xls is not supported.

:'(

[BiM]

Je pense qu'il faut que tu reprennes les sources de org.eclipse.birt.report.engine.emitter.fo ou html ou pdf (essayes d'abord avec FO) et que tu les recompiles dans un JAR nommé : org.eclipse.birt.report.engine.emitter.xls

Ou un truc approchant de ça...

[tiboudchou]

J'ai déjà ce .jar : xls-emitter.jar
dans le plugin pour faire marcher les rapports xls
C'est pour ça, logiquement j'ai toutes les cartes en main mais je n'y arrive pas

[BiM]

Moi j'ai pas compris ce qu'on fait avec ce qu'il y a dans patch.

Ce truc m'interesse vraiment !

[tiboudchou]

4. Download and apply the designer/viewer/engine patch file so to make the xls plugin work correctly both in the designer and viewer. If you are building BIRT from a CVS source tree, override the soure file; if you are just using the binary BIRT sdk, replace the class files in related plugin jar. Here is the list:

org.eclipse.birt.report.designer.ui org\eclipse\birt\report\designer\ui\actions\PreviewToolbarMenuAction in plugins/org.eclipse.birt.report.designer.ui.preview_2.1.0.*.jar

org.eclipse.birt.report.viewer org\eclipse\birt\report\presentation\aggregation\layout\EngineFragment in plugins/org.eclipse.birt.report.viewer_2.1.0.*/birt/WEB-INF/lib/viewservlets.jar

(*This time we need to patch the engine too, looks it doesn't much like the extended emitters now, all other emitters than PDF will be thought as the HTML one)

org.eclipse.birt.report.engine org\eclipse\birt\report\engine\api\impl\RenderTask in plugins/org.eclipse.birt.report.engine_2.1.0.*.jar
org.eclipse.birt.report.engine org\eclipse\birt\report\engine\layout\LayoutEngineFactory in plugins/org.eclipse.birt.report.engine_2.1.0.*.jar

En fait, dans le patch, tu trouveras des .class qu'il faut copier dans les .jar cités ci-dessus.
Par exemple, dans :
plugins/org.eclipse.birt.report.engine_2.1.0.*.jar
Tu remplaces RenderTask.class par celui fournit dans le patch

[BiM]

Tu as fait un diff avec les anciens fichiers pour voir ce qu'il y avait en plus et en moins s'il te plait ?

[tiboudchou]

L'original :

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public class RenderTask extends EngineTask implements IRenderTask
{
	IReportDocument reportDoc;
	String emitterID;
	boolean bodyOnly;
 
	private InnerRender innerRender;
 
	/**
	 * @param engine
	 *            the report engine
	 * @param runnable
	 *            the report runnable object
	 * @param reportDoc
	 *            the report document instance
	 */
	public RenderTask( IReportEngine engine, IReportRunnable runnable,
			IReportDocument reportDoc )
	{
		super( engine, runnable );
 
		executionContext.setFactoryMode( false );
		executionContext.setPresentationMode( true );
 
		// open the report document
		openReportDocument( reportDoc );
 
		// load report design
		loadDesign( );
 
		innerRender = new PageRangeRender( new long[]{1, this.reportDoc.getPageCount( )} );
	}
 
	protected void openReportDocument( IReportDocument reportDoc )
	{
		this.reportDoc = reportDoc;
		executionContext.setReportDocument( reportDoc );
 
		// load the informationf rom the report document
		setParameterValues( reportDoc.getParameterValues( ) );
		usingParameterValues( );
		executionContext.registerGlobalBeans( reportDoc
				.getGlobalVariables( null ) );
	}
 
	protected void closeReportDocument( )
	{
		//the report document is shared by mutiple render task, 
		//it is open by the caller, it should be closed by the caller.
		//reportDoc.close( );
	}
 
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.api.IRenderTask#render(long)
	 */
	public void render( long pageNumber ) throws EngineException
	{
		setPageNumber( pageNumber );
		render( );
	}
 
	protected IContentEmitter createContentEmitter( )
			throws EngineException
	{
		String format = executionContext.getOutputFormat( );
 
		if ("html".equalsIgnoreCase( format ))
		{
			bodyOnly = false;
		}
		else
		{
			bodyOnly = true;
		}
 
		ExtensionManager extManager = ExtensionManager.getInstance( );
		boolean supported = false;
		Collection supportedFormats = extManager.getSupportedFormat( );
		Iterator iter = supportedFormats.iterator( );
		while ( iter.hasNext( ) )
		{
			String supportedFormat = (String) iter.next( );
			if ( supportedFormat != null
					&& supportedFormat.equalsIgnoreCase( format ) )
			{
				supported = true;
				break;
			}
		}
 
		if ( !supported )
		{
			log.log( Level.SEVERE,
					MessageConstants.FORMAT_NOT_SUPPORTED_EXCEPTION, format );
			throw new EngineException(
					MessageConstants.FORMAT_NOT_SUPPORTED_EXCEPTION, format );
		}
 
		IContentEmitter emitter = extManager.createEmitter( format, emitterID );
		if ( emitter == null )
		{
			log.log( Level.SEVERE, "Report engine can not create {0} emitter.", //$NON-NLS-1$
					format ); // $NON-NLS-1$
			throw new EngineException(
					MessageConstants.CANNOT_CREATE_EMITTER_EXCEPTION );
		}
 
		//the output will be paginate.
		if ( !bodyOnly )
		{
			emitter = new HTMLTableLayoutEmitter( emitter, true );
		}
 
		return emitter;
	}
 
	private void initializeContentEmitter( IContentEmitter emitter,
			IReportExecutor executor )
	{
		// create the emitter services object that is needed in the emitters.
		EngineEmitterServices services = new EngineEmitterServices( this );
 
		EngineConfig config = engine.getConfig( );
		if ( config != null )
		{
			services.setEmitterConfig( config.getEmitterConfigs( ) );
		}
		services.setRenderOption( renderOptions );
		services.setExecutor( executor );
		services.setRenderContext( appContext );
		services.setReportRunnable( runnable );
 
		// emitter is not null
		emitter.initialize( services );
	}
 
	/**
	 * @param pageNumber
	 *            the page to be rendered
	 * @throws EngineException
	 *             throws exception if there is a rendering error
	 */
	protected void doRender( long pageNumber ) throws EngineException
	{
		try
		{
			IContentEmitter emitter = createContentEmitter( );
			ReportDesignHandle reportDesign = executionContext.getDesign( );
			String format = executionContext.getOutputFormat( );
			if ( "pdf".equalsIgnoreCase( format ) ) //$NON-NLS-1$
			{
				IReportExecutor executor = new ReportPageReader(
						executionContext, pageNumber, false );
				executor = new LocalizedReportExecutor( executionContext,
						executor );
				executionContext.setExecutor( executor );
				initializeContentEmitter( emitter, executor );
				IReportLayoutEngine layoutEngine = LayoutEngineFactory
						.createLayoutEngine( format );
				OnPageBreakLayoutPageHandle handle = new OnPageBreakLayoutPageHandle( executionContext );
				layoutEngine.setPageHandler( handle );
				startRender( );
				layoutEngine.layout( executor, emitter, false );
				closeRender( );
				executor.close( );
			}
			else
			{
				IReportExecutor executor = new ReportExecutor(
						executionContext, reportDesign, null );
				executor = new LocalizedReportExecutor( executionContext,
						executor );
				executionContext.setExecutor( executor );
				initializeContentEmitter( emitter, executor );
				// start the render
				ReportContentLoader loader = new ReportContentLoader(
						executionContext );
				startRender( );
				loader.loadPage( pageNumber, bodyOnly, emitter );
				closeRender( );
				executor.close( );
			}
		}
		catch ( Exception ex )
		{
			log.log( Level.SEVERE,
					"An error happened while running the report. Cause:", ex ); //$NON-NLS-1$
		}
		catch ( OutOfMemoryError err )
		{
			log.log( Level.SEVERE,
					"An OutOfMemory error happened while running the report." ); //$NON-NLS-1$
			throw err;
		}
	}
 
	/**
	 * @param pageNumber
	 *            the page to be rendered
	 * @throws EngineException
	 *             throws exception if there is a rendering error
	 */
	protected void doRender( List pageSequences ) throws EngineException
	{
		if ( pageSequences.size( ) == 0 )
		{
			return;
		}
		try
		{
			// start the render
			ReportDesignHandle reportDesign = executionContext.getDesign( );
			IContentEmitter emitter = createContentEmitter( );
			String format = executionContext.getOutputFormat( );
			if ( "pdf".equalsIgnoreCase( format ) ) //$NON-NLS-1$
			{
				IReportExecutor executor = new ReportPageReader(
						executionContext, pageSequences, false );
				executor = new LocalizedReportExecutor( executionContext,
						executor );
				executionContext.setExecutor( executor );
				initializeContentEmitter( emitter, executor );
				IReportLayoutEngine layoutEngine = LayoutEngineFactory
						.createLayoutEngine( format );
				OnPageBreakLayoutPageHandle handle = new OnPageBreakLayoutPageHandle( executionContext );
				layoutEngine.setPageHandler( handle );
				startRender( );
				layoutEngine.layout( executor, emitter, true );
				closeRender( );
				executor.close( );
			}
			else
			{
				IReportExecutor executor = new ReportExecutor(
						executionContext, reportDesign, null );
				executor = new LocalizedReportExecutor( executionContext,
						executor );
				executionContext.setExecutor( executor );
				initializeContentEmitter( emitter, executor );
				ReportContentLoader loader = new ReportContentLoader(
						executionContext );
				startRender( );
				loader.loadPageRange( pageSequences, bodyOnly, emitter );
				closeRender( );
				executor.close( );
			}
 
 
 
		}
		catch ( Exception ex )
		{
			log.log( Level.SEVERE,
					"An error happened while running the report. Cause:", ex ); //$NON-NLS-1$
		}
		catch ( OutOfMemoryError err )
		{
			log.log( Level.SEVERE,
					"An OutOfMemory error happened while running the report." ); //$NON-NLS-1$
			throw err;
		}
	}
 
	/**
	 * @param offset
	 *            the offset of the reportlet to be rendered
	 * @throws EngineException
	 *             throws exception if there is a rendering error
	 */
	protected void doRenderReportlet( long offset ) throws OutOfMemoryError
	{
		try
		{
			if (offset != -1)
			{
				// start the render
 
				IContentEmitter emitter = createContentEmitter( );
				ReportDesignHandle reportDesign = executionContext.getDesign( );
				String format = executionContext.getOutputFormat( );
				if ( "pdf".equalsIgnoreCase( format ) ) //$NON-NLS-1$
				{
					IReportExecutor executor = new ReportletReader(
							executionContext, offset );
					executor = new LocalizedReportExecutor( executionContext,
							executor );
					executionContext.setExecutor( executor );
					initializeContentEmitter( emitter, executor );
					IReportLayoutEngine layoutEngine = LayoutEngineFactory
							.createLayoutEngine( format );
					OnPageBreakLayoutPageHandle handle = new OnPageBreakLayoutPageHandle( executionContext );
					layoutEngine.setPageHandler( handle );
					startRender( );
					layoutEngine.layout( executor, emitter, false );
					closeRender( );
					executor.close( );
				}
				else
				{
					ReportContentLoader loader = new ReportContentLoader(
							executionContext );
					IReportExecutor executor = new ReportExecutor(
							executionContext, reportDesign, null );
					executor = new LocalizedReportExecutor( executionContext,
							executor );
					executionContext.setExecutor( executor );
 
					initializeContentEmitter( emitter, executor );
					startRender( );
					loader.loadReportlet( offset, emitter );
					closeRender( );
					executor.close( );
				}
			}
		}
		catch ( Exception ex )
		{
			log.log( Level.SEVERE,
					"An error happened while running the report. Cause:", ex ); //$NON-NLS-1$
		}
		catch ( OutOfMemoryError err )
		{
			log.log( Level.SEVERE,
					"An OutOfMemory error happened while running the report." ); //$NON-NLS-1$
			throw err;
		}
	}	
 
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.api.IRenderTask#setEmitterID(java.lang.String)
	 */
	public void setEmitterID( String id )
	{
		this.emitterID = id;
	}
 
	/**
	 * @return the emitter ID to be used to render this report. Could be null,
	 *         in which case the engine will choose one emitter that matches the
	 *         requested output format.
	 */
	public String getEmitterID( )
	{
		return this.emitterID;
	}
 
	public void close( )
	{
		closeReportDocument( );
		super.close( );
	}
 
	public void render( String pageRange ) throws EngineException
	{
		setPageRange( pageRange );
		render( );
	}
 
	private List parsePageSequence( String pageRange, long totalPage )
	{
		ArrayList list = new ArrayList( );
		if ( null == pageRange
				|| "".equals( pageRange ) || pageRange.toUpperCase( ).indexOf( "ALL" ) >= 0 ) //$NON-NLS-1$ //$NON-NLS-2$
		{
			list.add( new long[]{1, totalPage} );
			return list;
		}
		String[] ps = pageRange.split( "," ); //$NON-NLS-1$
		for ( int i = 0; i < ps.length; i++ )
		{
			try
			{
				if ( ps[i].indexOf( "-" ) > 0 ) //$NON-NLS-1$
				{
					String[] psi = ps[i].split( "-" ); //$NON-NLS-1$
					if ( psi.length == 2 )
					{
						long start = Long.parseLong( psi[0].trim( ) );
						long end = Long.parseLong( psi[1].trim( ) );
						if ( end > start )
						{
							list.add( new long[]{Math.max( start, 1 ),
									Math.min( end, totalPage )} );
						}
					}
					else
					{
						log.log( Level.SEVERE,
								"error page number range: {0}", ps[i] ); //$NON-NLS-1$
					}
				}
				else
				{
					long number = Long.parseLong( ps[i].trim( ) );
					if ( number > 0 && number <= totalPage )
					{
						list.add( new long[]{number, number} );
					}
					else
					{
						log.log( Level.SEVERE,
								"error page number range: {0}", ps[i] ); //$NON-NLS-1$
					}
 
				}
			}
			catch ( NumberFormatException ex )
			{
				log.log( Level.SEVERE, "error page number rang:", ps[i] ); //$NON-NLS-1$
			}
		}
		return sort( list );
	}
 
	private List sort( List list )
	{
		for ( int i = 0; i < list.size( ); i++ )
		{
			long[] currentI = (long[]) list.get( i );
			int minIndex = i;
			long[] min = currentI;
			for ( int j = i + 1; j < list.size( ); j++ )
			{
				long[] currentJ = (long[]) list.get( j );
				if ( currentJ[0] < min[0] )
				{
					minIndex = j;
					min = currentJ;
				}
			}
			if ( minIndex != i )
			{
				// swap
				list.set( i, min );
				list.set( minIndex, currentI );
			}
		}
		long[] current = null;
		long[] last = null;
		ArrayList ret = new ArrayList( );
		for ( int i = 0; i < list.size( ); i++ )
		{
			current = (long[]) list.get( i );
			if ( last != null )
			{
				if ( current[1] <= last[1] )
					continue;
				if ( current[0] <= last[1] )
					current[0] = last[1];
					ret.add( current );
			}
			else
			{
				ret.add( current );
			}
			last = current;
		}
		return ret;
	}
 
	/* (non-Javadoc)
	 * @see org.eclipse.birt.report.engine.api.IRenderTask#render(org.eclipse.birt.report.engine.api.InstanceID)
	 */
	public void render(InstanceID iid) throws EngineException {
		setInstanceID( iid );
		render( );
	}
 
	/* (non-Javadoc)
	 * @see org.eclipse.birt.report.engine.api.IRenderTask#render()
	 */
	public void render() throws EngineException {
		if ( renderOptions == null )
		{
			throw new EngineException(
					"Render options have to be specified to render a report." ); //$NON-NLS-1$
		}
		innerRender.render( );
	}
 
	/* (non-Javadoc)
	 * @see org.eclipse.birt.report.engine.api.IRenderTask#render()
	 */
	public void setPageNumber( long pageNumber ) throws EngineException
	{
		long totalPage = reportDoc.getPageCount( );
		if ( pageNumber <= 0 || pageNumber > totalPage )
		{
			throw new EngineException( "Can't find page hints :{0}", new Long( //$NON-NLS-1$
					pageNumber ) );
		}
		innerRender = new PageRender( pageNumber);
	}
 
	/* (non-Javadoc)
	 * @see org.eclipse.birt.report.engine.api.IRenderTask#setInstanceID( InstanceID iid )
	 */
	public void setInstanceID( InstanceID iid ) throws EngineException
	{
		innerRender = new ReportletRender( iid );
	}
 
	/* (non-Javadoc)
	 * @see org.eclipse.birt.report.engine.api.IRenderTask#setPageRange( String pageRange )
	 */
	public void setPageRange( String pageRange ) throws EngineException
	{
		innerRender = new PageRangeRender( parsePageSequence( pageRange, reportDoc.getPageCount( )) );
	}
 
	/* (non-Javadoc)
	 * @see org.eclipse.birt.report.engine.api.IRenderTask#setBookmark( String bookmark )
	 */
	public void setBookmark( String bookmark ) throws EngineException
	{
		long pageNumber = reportDoc.getPageNumber( bookmark );
		if ( pageNumber <= 0 ) {
			throw new EngineException( "Can't find bookmark :{0}", bookmark ); //$NON-NLS-1$
		}
		innerRender = new PageRender( pageNumber );
	}
 
	public void setReportlet( String bookmark ) throws EngineException
	{
		innerRender = new ReportletRender( bookmark ); 
	}
 
	private interface InnerRender
	{
		void render() throws EngineException;
	}
 
	/**
	 * Renders a page with a page number. 
	 */
	private class PageRender implements InnerRender
	{
		private long pageNumber;
 
		public PageRender( long pageNumber )
		{
			this.pageNumber = pageNumber;
		}
 
		public void render( ) throws EngineException
		{
			RenderTask.this.doRender( pageNumber );
		}
	}
 
	/**
	 * Renders a range of pages. 
	 */
	private class PageRangeRender implements InnerRender
	{
		private List pageRange;
 
		public PageRangeRender( long[] arrayRange )
		{
			this.pageRange = new ArrayList();
			pageRange.add( arrayRange );
		}
 
		public PageRangeRender( List pageRange )
		{
			this.pageRange = pageRange;
		}
 
		public void render( ) throws EngineException
		{
			RenderTask.this.doRender( pageRange );
		}
	}
 
	private class ReportletRender implements InnerRender
	{
		private long offset;
 
		ReportletRender(InstanceID iid) throws EngineException
		{
			this.offset = reportDoc.getInstanceOffset( iid );
			if ( offset == -1 )
			{
				throw new EngineException(
					"Invalid instance id :" + iid ); //$NON-NLS-1$
			}
		}
 
		ReportletRender( String bookmark ) throws EngineException
		{
			this.offset = reportDoc.getBookmarkOffset( bookmark );
			if ( offset == -1 )
			{
				throw new EngineException(
					"Invalid bookmark :" + bookmark ); //$NON-NLS-1$
			}
		}
 
		public void render( ) throws EngineException
		{
			RenderTask.this.doRenderReportlet( offset );
		}
	}
 
	public void setInstanceID( String iid ) throws EngineException
	{
		setInstanceID( InstanceID.parse( iid ));
	}
}

[tiboudchou]

Le patché :

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public class RenderTask extends EngineTask implements IRenderTask
{
	IReportDocument reportDoc;
	String emitterID;
	boolean bodyOnly;
 
	private InnerRender innerRender;
 
	/**
	 * @param engine
	 *            the report engine
	 * @param runnable
	 *            the report runnable object
	 * @param reportDoc
	 *            the report document instance
	 */
	public RenderTask( IReportEngine engine, IReportRunnable runnable,
			IReportDocument reportDoc )
	{
		super( engine, runnable );
 
		executionContext.setFactoryMode( false );
		executionContext.setPresentationMode( true );
 
		// open the report document
		openReportDocument( reportDoc );
 
		// load report design
		loadDesign( );
 
		innerRender = new PageRangeRender( new long[]{1, this.reportDoc.getPageCount( )} );
	}
 
	protected void openReportDocument( IReportDocument reportDoc )
	{
		this.reportDoc = reportDoc;
		executionContext.setReportDocument( reportDoc );
 
		// load the informationf rom the report document
		setParameterValues( reportDoc.getParameterValues( ) );
		usingParameterValues( );
		executionContext.registerGlobalBeans( reportDoc
				.getGlobalVariables( null ) );
	}
 
	protected void closeReportDocument( )
	{
		//the report document is shared by mutiple render task, 
		//it is open by the caller, it should be closed by the caller.
		//reportDoc.close( );
	}
 
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.api.IRenderTask#render(long)
	 */
	public void render( long pageNumber ) throws EngineException
	{
		setPageNumber( pageNumber );
		render( );
	}
 
	protected IContentEmitter createContentEmitter( )
			throws EngineException
	{
		String format = executionContext.getOutputFormat( );
 
		if ("html".equalsIgnoreCase( format ))
		{
			bodyOnly = false;
		}
		else
		{
			bodyOnly = true;
		}
 
		ExtensionManager extManager = ExtensionManager.getInstance( );
		boolean supported = false;
		Collection supportedFormats = extManager.getSupportedFormat( );
		Iterator iter = supportedFormats.iterator( );
		while ( iter.hasNext( ) )
		{
			String supportedFormat = (String) iter.next( );
			if ( supportedFormat != null
					&& supportedFormat.equalsIgnoreCase( format ) )
			{
				supported = true;
				break;
			}
		}
 
		if ( !supported )
		{
			log.log( Level.SEVERE,
					MessageConstants.FORMAT_NOT_SUPPORTED_EXCEPTION, format );
			throw new EngineException(
					MessageConstants.FORMAT_NOT_SUPPORTED_EXCEPTION, format );
		}
 
		IContentEmitter emitter = extManager.createEmitter( format, emitterID );
		if ( emitter == null )
		{
			log.log( Level.SEVERE, "Report engine can not create {0} emitter.", //$NON-NLS-1$
					format ); // $NON-NLS-1$
			throw new EngineException(
					MessageConstants.CANNOT_CREATE_EMITTER_EXCEPTION );
		}
 
		//the output will be paginate.
		if (!bodyOnly)
		{
			emitter = new HTMLTableLayoutEmitter(emitter);
		}
 
		return emitter;
	}
 
	private void initializeContentEmitter( IContentEmitter emitter,
			IReportExecutor executor )
	{
		// create the emitter services object that is needed in the emitters.
		EngineEmitterServices services = new EngineEmitterServices( this );
 
		EngineConfig config = engine.getConfig( );
		if ( config != null )
		{
			services.setEmitterConfig( config.getEmitterConfigs( ) );
		}
		services.setRenderOption( renderOptions );
		services.setExecutor( executor );
		services.setRenderContext( appContext );
		services.setReportRunnable( runnable );
 
		// emitter is not null
		emitter.initialize( services );
	}
 
	/**
	 * @param pageNumber
	 *            the page to be rendered
	 * @throws EngineException
	 *             throws exception if there is a rendering error
	 */
	protected void doRender( long pageNumber ) throws EngineException
	{
		try
		{
			IContentEmitter emitter = createContentEmitter( );
			ReportDesignHandle reportDesign = executionContext.getDesign( );
			String format = executionContext.getOutputFormat( );
			if ( "pdf".equalsIgnoreCase( format ) || "xls".equalsIgnoreCase( format ) || "ppt".equalsIgnoreCase( format ) ) //$NON-NLS-1$
			{
				IReportExecutor executor = new ReportPageReader(
						executionContext, pageNumber, false );
				executor = new LocalizedReportExecutor( executionContext,
						executor );
				executionContext.setExecutor( executor );
				initializeContentEmitter( emitter, executor );
				IReportLayoutEngine layoutEngine = LayoutEngineFactory
						.createLayoutEngine( format );
				startRender( );
				layoutEngine.layout( executor, emitter );
				closeRender( );
				executor.close( );
			}
			else
			{
				IReportExecutor executor = new ReportExecutor(
						executionContext, reportDesign, null );
				executor = new LocalizedReportExecutor( executionContext,
						executor );
				executionContext.setExecutor( executor );
				initializeContentEmitter( emitter, executor );
				// start the render
				ReportContentLoader loader = new ReportContentLoader(
						executionContext );
				startRender( );
				loader.loadPage( pageNumber, bodyOnly, emitter );
				closeRender( );
				executor.close( );
			}
		}
		catch ( Exception ex )
		{
			log.log( Level.SEVERE,
					"An error happened while running the report. Cause:", ex ); //$NON-NLS-1$
		}
		catch ( OutOfMemoryError err )
		{
			log.log( Level.SEVERE,
					"An OutOfMemory error happened while running the report." ); //$NON-NLS-1$
			throw err;
		}
	}
 
	/**
	 * @param pageNumber
	 *            the page to be rendered
	 * @throws EngineException
	 *             throws exception if there is a rendering error
	 */
	protected void doRender( List pageSequences ) throws EngineException
	{
		if ( pageSequences.size( ) == 0 )
		{
			return;
		}
		try
		{
			// start the render
			ReportDesignHandle reportDesign = executionContext.getDesign( );
			IContentEmitter emitter = createContentEmitter( );
			String format = executionContext.getOutputFormat( );
			if ( "pdf".equalsIgnoreCase( format ) || "xls".equalsIgnoreCase( format ) || "ppt".equalsIgnoreCase( format ) ) //$NON-NLS-1$
			{
				IReportExecutor executor = new ReportPageReader(
						executionContext, pageSequences, false );
				executor = new LocalizedReportExecutor( executionContext,
						executor );
				executionContext.setExecutor( executor );
				initializeContentEmitter( emitter, executor );
				IReportLayoutEngine layoutEngine = LayoutEngineFactory
						.createLayoutEngine( format );
				startRender( );
				layoutEngine.layout( executor, emitter );
				closeRender( );
				executor.close( );
			}
			else
			{
				IReportExecutor executor = new ReportExecutor(
						executionContext, reportDesign, null );
				executor = new LocalizedReportExecutor( executionContext,
						executor );
				executionContext.setExecutor( executor );
				initializeContentEmitter( emitter, executor );
				ReportContentLoader loader = new ReportContentLoader(
						executionContext );
				startRender( );
				loader.loadPageRange( pageSequences, bodyOnly, emitter );
				closeRender( );
				executor.close( );
			}
 
 
 
		}
		catch ( Exception ex )
		{
			log.log( Level.SEVERE,
					"An error happened while running the report. Cause:", ex ); //$NON-NLS-1$
		}
		catch ( OutOfMemoryError err )
		{
			log.log( Level.SEVERE,
					"An OutOfMemory error happened while running the report." ); //$NON-NLS-1$
			throw err;
		}
	}
 
	/**
	 * @param offset
	 *            the offset of the reportlet to be rendered
	 * @throws EngineException
	 *             throws exception if there is a rendering error
	 */
	protected void doRenderReportlet( long offset ) throws OutOfMemoryError
	{
		try
		{
			if (offset != -1)
			{
				// start the render
 
				IContentEmitter emitter = createContentEmitter( );
				ReportDesignHandle reportDesign = executionContext.getDesign( );
				String format = executionContext.getOutputFormat( );
				if ( "pdf".equalsIgnoreCase( format ) || "xls".equalsIgnoreCase( format ) || "ppt".equalsIgnoreCase( format ) ) //$NON-NLS-1$
				{
					IReportExecutor executor = new ReportletReader(
							executionContext, offset );
					executor = new LocalizedReportExecutor( executionContext,
							executor );
					executionContext.setExecutor( executor );
					initializeContentEmitter( emitter, executor );
					IReportLayoutEngine layoutEngine = LayoutEngineFactory
							.createLayoutEngine( format );
					startRender( );
					layoutEngine.layout( executor, emitter );
					closeRender( );
					executor.close( );
				}
				else
				{
					ReportContentLoader loader = new ReportContentLoader(
							executionContext );
					IReportExecutor executor = new ReportExecutor(
							executionContext, reportDesign, null );
					executor = new LocalizedReportExecutor( executionContext,
							executor );
					executionContext.setExecutor( executor );
 
					initializeContentEmitter( emitter, executor );
					startRender( );
					loader.loadReportlet( offset, emitter );
					closeRender( );
					executor.close( );
				}
			}
		}
		catch ( Exception ex )
		{
			log.log( Level.SEVERE,
					"An error happened while running the report. Cause:", ex ); //$NON-NLS-1$
		}
		catch ( OutOfMemoryError err )
		{
			log.log( Level.SEVERE,
					"An OutOfMemory error happened while running the report." ); //$NON-NLS-1$
			throw err;
		}
	}	
 
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.api.IRenderTask#setEmitterID(java.lang.String)
	 */
	public void setEmitterID( String id )
	{
		this.emitterID = id;
	}
 
	/**
	 * @return the emitter ID to be used to render this report. Could be null,
	 *         in which case the engine will choose one emitter that matches the
	 *         requested output format.
	 */
	public String getEmitterID( )
	{
		return this.emitterID;
	}
 
	public void close( )
	{
		closeReportDocument( );
		super.close( );
	}
 
	public void render( String pageRange ) throws EngineException
	{
		setPageRange( pageRange );
		render( );
	}
 
	private List parsePageSequence( String pageRange, long totalPage )
	{
		ArrayList list = new ArrayList( );
		if ( null == pageRange
				|| "".equals( pageRange ) || pageRange.toUpperCase( ).indexOf( "ALL" ) >= 0 ) //$NON-NLS-1$ //$NON-NLS-2$
		{
			list.add( new long[]{1, totalPage} );
			return list;
		}
		String[] ps = pageRange.split( "," ); //$NON-NLS-1$
		for ( int i = 0; i < ps.length; i++ )
		{
			try
			{
				if ( ps[i].indexOf( "-" ) > 0 ) //$NON-NLS-1$
				{
					String[] psi = ps[i].split( "-" ); //$NON-NLS-1$
					if ( psi.length == 2 )
					{
						long start = Long.parseLong( psi[0].trim( ) );
						long end = Long.parseLong( psi[1].trim( ) );
						if ( end > start )
						{
							list.add( new long[]{Math.max( start, 1 ),
									Math.min( end, totalPage )} );
						}
					}
					else
					{
						log.log( Level.SEVERE,
								"error page number range: {0}", ps[i] ); //$NON-NLS-1$
					}
				}
				else
				{
					long number = Long.parseLong( ps[i].trim( ) );
					if ( number > 0 && number <= totalPage )
					{
						list.add( new long[]{number, number} );
					}
					else
					{
						log.log( Level.SEVERE,
								"error page number range: {0}", ps[i] ); //$NON-NLS-1$
					}
 
				}
			}
			catch ( NumberFormatException ex )
			{
				log.log( Level.SEVERE, "error page number rang:", ps[i] ); //$NON-NLS-1$
			}
		}
		return sort( list );
	}
 
	private List sort( List list )
	{
		for ( int i = 0; i < list.size( ); i++ )
		{
			long[] currentI = (long[]) list.get( i );
			int minIndex = i;
			long[] min = currentI;
			for ( int j = i + 1; j < list.size( ); j++ )
			{
				long[] currentJ = (long[]) list.get( j );
				if ( currentJ[0] < min[0] )
				{
					minIndex = j;
					min = currentJ;
				}
			}
			if ( minIndex != i )
			{
				// swap
				list.set( i, min );
				list.set( minIndex, currentI );
			}
		}
		long[] current = null;
		long[] last = null;
		ArrayList ret = new ArrayList( );
		for ( int i = 0; i < list.size( ); i++ )
		{
			current = (long[]) list.get( i );
			if ( last != null )
			{
				if ( current[1] <= last[1] )
					continue;
				if ( current[0] <= last[1] )
					current[0] = last[1];
					ret.add( current );
			}
			else
			{
				ret.add( current );
			}
			last = current;
		}
		return ret;
	}
 
	/* (non-Javadoc)
	 * @see org.eclipse.birt.report.engine.api.IRenderTask#render(org.eclipse.birt.report.engine.api.InstanceID)
	 */
	public void render(InstanceID iid) throws EngineException {
		setInstanceID( iid );
		render( );
	}
 
	/* (non-Javadoc)
	 * @see org.eclipse.birt.report.engine.api.IRenderTask#render()
	 */
	public void render() throws EngineException {
		if ( renderOptions == null )
		{
			throw new EngineException(
					"Render options have to be specified to render a report." ); //$NON-NLS-1$
		}
		innerRender.render( );
	}
 
	/* (non-Javadoc)
	 * @see org.eclipse.birt.report.engine.api.IRenderTask#render()
	 */
	public void setPageNumber( long pageNumber ) throws EngineException
	{
		long totalPage = reportDoc.getPageCount( );
		if ( pageNumber <= 0 || pageNumber > totalPage )
		{
			throw new EngineException( "Can't find page hints :{0}", new Long( //$NON-NLS-1$
					pageNumber ) );
		}
		innerRender = new PageRender( pageNumber);
	}
 
	/* (non-Javadoc)
	 * @see org.eclipse.birt.report.engine.api.IRenderTask#setInstanceID( InstanceID iid )
	 */
	public void setInstanceID( InstanceID iid ) throws EngineException
	{
		innerRender = new ReportletRender( iid );
	}
 
	/* (non-Javadoc)
	 * @see org.eclipse.birt.report.engine.api.IRenderTask#setPageRange( String pageRange )
	 */
	public void setPageRange( String pageRange ) throws EngineException
	{
		innerRender = new PageRangeRender( parsePageSequence( pageRange, reportDoc.getPageCount( )) );
	}
 
	/* (non-Javadoc)
	 * @see org.eclipse.birt.report.engine.api.IRenderTask#setBookmark( String bookmark )
	 */
	public void setBookmark( String bookmark ) throws EngineException
	{
		long pageNumber = reportDoc.getPageNumber( bookmark );
		if ( pageNumber <= 0 ) {
			throw new EngineException( "Can't find bookmark :{0}", bookmark ); //$NON-NLS-1$
		}
		innerRender = new PageRender( pageNumber );
	}
 
	public void setReportlet( String bookmark ) throws EngineException
	{
		innerRender = new ReportletRender( bookmark ); 
	}
 
	private interface InnerRender
	{
		void render() throws EngineException;
	}
 
	/**
	 * Renders a page with a page number. 
	 */
	private class PageRender implements InnerRender
	{
		private long pageNumber;
 
		public PageRender( long pageNumber )
		{
			this.pageNumber = pageNumber;
		}
 
		public void render( ) throws EngineException
		{
			RenderTask.this.doRender( pageNumber );
		}
	}
 
	/**
	 * Renders a range of pages. 
	 */
	private class PageRangeRender implements InnerRender
	{
		private List pageRange;
 
		public PageRangeRender( long[] arrayRange )
		{
			this.pageRange = new ArrayList();
			pageRange.add( arrayRange );
		}
 
		public PageRangeRender( List pageRange )
		{
			this.pageRange = pageRange;
		}
 
		public void render( ) throws EngineException
		{
			RenderTask.this.doRender( pageRange );
		}
	}
 
	private class ReportletRender implements InnerRender
	{
		private long offset;
 
		ReportletRender(InstanceID iid) throws EngineException
		{
			this.offset = reportDoc.getInstanceOffset( iid );
			if ( offset == -1 )
			{
				throw new EngineException(
					"Invalid instance id :" + iid ); //$NON-NLS-1$
			}
		}
 
		ReportletRender( String bookmark ) throws EngineException
		{
			this.offset = reportDoc.getBookmarkOffset( bookmark );
			if ( offset == -1 )
			{
				throw new EngineException(
					"Invalid bookmark :" + bookmark ); //$NON-NLS-1$
			}
		}
 
		public void render( ) throws EngineException
		{
			RenderTask.this.doRenderReportlet( offset );
		}
	}
 
	public void setInstanceID( String iid ) throws EngineException
	{
		setInstanceID( InstanceID.parse( iid ));
	}
}

On notera notamment dans la méthode doRender qu'il accepte en plus du pdf : le xls et le ppt.

[moritan]

Voici la solution que j'ai utilisé pour avoir un format excel.

Je passe par un fichier iqy(fichier de 3 lignes), c'est fait pour çà.

Code :

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WEB
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http://monserveur/run?report=truc&__format=html

Car en fait dans le fichier IQY, il suffit de lui mettre une URL (celle du format html). Et excel le digère très bien.

[tiboudchou]

En fait, je ne parle pas du BIRT Viewer mais bien du Birt Engine.
Bref du Java quoi, je n'arrive pas à générer un fichier Excel en utilisant l'API.

Avec le run + format ça marche très bien Mais là n'est pas la question

[moritan]

Envoyé par tiboudchou

En fait, je ne parle pas du BIRT Viewer mais bien du Birt Engine.
Bref du Java quoi, je n'arrive pas à générer un fichier Excel en utilisant l'API.

Avec le run + format ça marche très bien Mais là n'est pas la question

OK je n'avais pas compris que tu publiais à partir d'un client lourd.

[BiM]

Tu peux publier à partir d'un client léger sans passer par le viewer...

[tiboudchou]

Non non le client est léger
En fait c'est une application J2EE mais les possibilités du BIRT Viewer sont trop limitées, alors pour publier les rapports, je le fais en Java + saisie de paramètres via JSP pour le client. Bref mon code Java est donc sur le serveur

EDIT : ahh, BiM m'a devancé :p

[moritan]

Envoyé par tiboudchou

Non non le client est léger
En fait c'est une application J2EE mais les possibilités du BIRT Viewer sont trop limitées, alors pour publier les rapports, je le fais en Java + saisie de paramètres via JSP pour le client. Bref mon code Java est donc sur le serveur

EDIT : ahh, BiM m'a devancé :p

Donc tu as plus ou moins la même archi que moi.
Effectivement le viewer standard est limité et vaux mieux le refaire mais ce n'était qu'un exemple.

Quesqu'y t'enpèche dans ta jsp de rajouter un format XLS, qui en fait renvoie vers un fichier iqy généré à la volé qui contient l'url de consultation du rapport au format HTML ?

Après c'est juste une solution alternative pour ne pas rajouter d'emitter.

Comme dirais un grand philosofe poilu : C'est vous qui voyait...

[BiM]

Je fais la même chose alors forcément...

[moritan]

Envoyé par BiM

Je fais la même chose alors forcément...

Je crois qu'on fait tous la même chose.

Enfin plus maintenant, j'ai livré donc je suis parti sur autre chose.

[tiboudchou]

J'ai appliqué la solution du petit fichier intermédiaire temporairement, merci à toi
Cela dit, le fichier Excel généré est très laid, le bleu pastel est devenu bleu turquoise fluo et des cases sont décalées ... une idée ?

[moritan]

Envoyé par tiboudchou

J'ai appliqué la solution du petit fichier intermédiaire temporairement, merci à toi
Cela dit, le fichier Excel généré est très laid, le bleu pastel est devenu bleu turquoise fluo et des cases sont décalées ... une idée ?

Moi j'avais retenu cette solution car je trouvé le fichier excel plus propre...
Pour les couleurs, ça doit venir de la palette de couleur excel, ç voir si elle est modifiable. ou alors voir comment sont défini les couleurs dans le rapport pour voir si elle sont en code hexa ou pas, le code pour blue est peut-être différent entre IE et Excel.

Pour les cases c'est bizarre, serait-ce des cases de tableau vides masquer dans IE?
Car IE met les cellules vide à 0%, mais Excel les mets à la taille par défaut donc visible.


PS: un avantage de cette méthode c'est qu'on peut rafraichier le rapport en direct dans Excel avec F5.