Re: targetrenderer set to MIME_PNG fails in fop >=1.0 but succeeds in 0.95

[Luis Bernardo <lm...@gmail.com>]

Can you start with the embedding.ExampleFO2PDF.java example (in 
examples/embedding/java), change the mime type to MIME_PNG (and rename 
all the PDFs to PNGs) and confirm that the new example does generate a 
PNG file? I just tested that with trunk and it worked.

On 12/27/12 3:02 PM, Milo van der Zee wrote:
> Dear FOP users,
>
> I'm using FOP for a couple of years now and thought it was time to 
> upgrade to version 1.1. Problem is that the rendering to PNG stopped 
> functioning. It all still works with version 0.95.
>
> PDF generation is still fine. The difference between PNG and PDF 
> generation is the mime type of fop generated with the factory.
> Strange thing is that the call to '*userAgent.getRendererOverride()*' 
> returns 'null' in version 1.1 and returned the expected PNGRenderer in 
> version 0.95. Is this a bug or is something changed between versions 
> in relation to PNG rendering?
> From the debug info I see that the renderer does create a page. It 
> seems like the link between the rendererImpl and the mime-type is not 
> found. But where can I force that?
>
> See code fragments below.
>
> Thank you very much for any help.,
> Milo van der Zee
>
> some relevant code:
> ---------------------------------------
> FopFactory fopFactory = FopFactory.newInstance();
> FOUserAgent foUserAgent = fopFactory.newFOUserAgent();
> foUserAgent.setTargetResolution(document.getPreviewDPI());
> ByteArrayOutputStream out = new ByteArrayOutputStream();
> Fop fop = fopFactory.newFop(*MimeConstants.MIME_PNG*, foUserAgent, out);
> TransformerFactory factory = TransformerFactory.newInstance();
> Source xslfo = DocumentGenerator.generateXslFo(document);
> Transformer transformer = factory.newTransformer(xslfo);
>
> SAXBuilder saxBuilder = new SAXBuilder();
> saxBuilder.setErrorHandler(new SaxParserErrorListener());
> org.jdom.Document dataDocument = saxBuilder.build(new 
> StringReader(dataString));
> DOMSource src = new DOMSource((new DOMOutputter()).output(dataDocument));
> Result res = new SAXResult(fop.getDefaultHandler());
> transformer.transform(src, res);
>
> FOUserAgent userAgent = fop.getUserAgent();
> *PNGRenderer renderer = (PNGRenderer)userAgent.getRendererOverride();*
> ---------------------------------------
>
> ---------------------------------------
> I added this to my pom.xml:
> ---------------------------------------
> <dependency>
> <groupId>org.apache.xmlgraphics</groupId>
> <artifactId>fop</artifactId>
> <version>${fop-version}</version>
> <exclusions>
> <!-- FOP has wrong dependancies on the avalon framework -->
> <exclusion>
> <groupId>org.apache.avalon.framework</groupId>
> <artifactId>avalon-framework-api</artifactId>
> </exclusion>
> <exclusion>
> <groupId>org.apache.avalon.framework</groupId>
> <artifactId>avalon-framework-impl</artifactId>
> </exclusion>
> </exclusions>
> </dependency>
> <!-- these two are to correct issues in fop dependency -->
> <dependency>
> <groupId>avalon-framework</groupId>
> <artifactId>avalon-framework-api</artifactId>
> <version>4.2.0</version>
> </dependency>
> <dependency>
> <groupId>avalon-framework</groupId>
> <artifactId>avalon-framework-impl</artifactId>
> <version>4.2.0</version>
> </dependency>
> ---------------------------------------
>
> ---------------------------------------
> Some debug info:
> ---------------------------------------
> DEBUG org.apache.fop.util.ContentHandlerFactoryRegistry - Dynamically 
> adding ContentHandlerFactory: 
> org.apache.fop.render.afp.extensions.AFPExtensionHandlerFactory
> DEBUG org.apache.fop.util.ContentHandlerFactoryRegistry - Dynamically 
> adding ContentHandlerFactory: 
> org.apache.fop.render.ps.extensions.PSExtensionHandlerFactory
> DEBUG org.apache.fop.util.ContentHandlerFactoryRegistry - Dynamically 
> adding ContentHandlerFactory: 
> org.apache.fop.fo.extensions.xmp.XMPContentHandlerFactory
> DEBUG org.apache.fop.render.RendererFactory - Dynamically adding maker 
> for Renderer: org.apache.fop.render.txt.TXTRendererMaker
> DEBUG org.apache.fop.render.RendererFactory - *Dynamically adding 
> maker for Renderer: org.apache.fop.render.bitmap.PNGRendererMaker*
> DEBUG org.apache.fop.render.RendererFactory - Dynamically adding maker 
> for Renderer: org.apache.fop.render.bitmap.TIFFRendererMaker
> DEBUG org.apache.fop.render.RendererFactory - Dynamically adding maker 
> for Renderer: org.apache.fop.render.xml.XMLRendererMaker
> DEBUG org.apache.fop.render.RendererFactory - Dynamically adding maker 
> for Renderer: org.apache.fop.render.awt.AWTRendererMaker
> DEBUG org.apache.fop.render.RendererFactory - Dynamically adding maker 
> for Renderer: org.apache.fop.render.print.PrintRendererMaker
> DEBUG org.apache.fop.render.RendererFactory - Dynamically adding maker 
> for FOEventHandler: org.apache.fop.render.rtf.RTFFOEventHandlerMaker
> DEBUG org.apache.fop.render.RendererFactory - Dynamically adding maker 
> for IFDocumentHandler: org.apache.fop.render.pdf.PDFDocumentHandlerMaker
> DEBUG org.apache.fop.render.RendererFactory - Dynamically adding maker 
> for IFDocumentHandler: org.apache.fop.render.pcl.PCLDocumentHandlerMaker
> DEBUG org.apache.fop.render.RendererFactory - Dynamically adding maker 
> for IFDocumentHandler: 
> org.apache.fop.render.bitmap.TIFFDocumentHandlerMaker
> DEBUG org.apache.fop.render.RendererFactory - Dynamically adding maker 
> for IFDocumentHandler: 
> org.apache.fop.render.bitmap.PNGDocumentHandlerMaker
> DEBUG org.apache.fop.render.RendererFactory - Dynamically adding maker 
> for IFDocumentHandler: org.apache.fop.render.ps.PSDocumentHandlerMaker
> DEBUG org.apache.fop.render.RendererFactory - Dynamically adding maker 
> for IFDocumentHandler: org.apache.fop.render.afp.AFPDocumentHandlerMaker
> DEBUG org.apache.fop.render.RendererFactory - Dynamically adding maker 
> for IFDocumentHandler: 
> org.apache.fop.render.intermediate.IFSerializerMaker
> DEBUG org.apache.fop.render.XMLHandlerRegistry - Dynamically adding 
> XMLHandler: org.apache.fop.render.pdf.PDFSVGHandler
> DEBUG org.apache.fop.render.XMLHandlerRegistry - Dynamically adding 
> XMLHandler: org.apache.fop.render.ps.PSSVGHandler
> DEBUG org.apache.fop.render.XMLHandlerRegistry - Dynamically adding 
> XMLHandler: org.apache.fop.render.java2d.Java2DSVGHandler
> DEBUG org.apache.fop.render.XMLHandlerRegistry - Dynamically adding 
> XMLHandler: org.apache.fop.render.pcl.PCLSVGHandler
> DEBUG org.apache.fop.render.XMLHandlerRegistry - Dynamically adding 
> XMLHandler: org.apache.fop.render.afp.AFPSVGHandler
> DEBUG org.apache.fop.render.ImageHandlerRegistry - Dynamically adding 
> ImageHandler: org.apache.fop.render.pdf.PDFImageHandlerGraphics2D
> DEBUG org.apache.fop.render.ImageHandlerRegistry - Dynamically adding 
> ImageHandler: org.apache.fop.render.pdf.PDFImageHandlerRenderedImage
> ...
> DEBUG org.apache.fop.render.ImageHandlerRegistry - Dynamically adding 
> ImageHandler: org.apache.fop.render.afp.AFPImageHandlerSVG
> DEBUG org.apache.fop.render.AbstractConfigurator - userconfig is null
> DEBUG org.apache.fop.render.AbstractConfigurator - userconfig is null
> DEBUG org.apache.fop.fonts.FontInfo - Registering: any,normal,400 under F5
> ...
> DEBUG org.apache.fop.fonts.FontInfo - Registering: Webdings,normal,400 
> under F170
> DEBUG org.apache.fop.render.intermediate.IFRenderer - *Rendering areas 
> via IF document handler* 
> (org.apache.fop.render.intermediate.EventProducingFilter)...
> DEBUG org.apache.fop.fo.FOTreeBuilder - Building formatting object tree
> DEBUG org.apache.fop.image.loader.batik.PreloaderSVG - Error while 
> trying to load stream as an SVG file: Invalid byte 1 of 1-byte UTF-8 
> sequence.
> DEBUG org.apache.fop.image.loader.batik.PreloaderSVG - Error while 
> trying to load stream as an SVG file: Invalid byte 1 of 1-byte UTF-8 
> sequence.
> DEBUG org.apache.fop.area.AreaTreeHandler - Current heap size: 171055KB
> DEBUG org.apache.fop.complexscripts.bidi.BidiResolver - BD: RESOLVE: 
> org.apache.fop.fo.pagination.PageSequence@bc454f 
> <ma...@bc454f>[@id=]
> ...
> DEBUG org.apache.fop.layoutmgr.PageSequenceLayoutManager - Starting layout
> ...
> DEBUG org.apache.fop.area.IDTracker - signalIDProcessed()
> DEBUG org.apache.fop.render.bitmap.AbstractBitmapDocumentHandler - 
> Don't know how to handle extension object. Ignoring: 
> org.apache.xmlgraphics.xmp.Metadata@4ada6e 
> <ma...@4ada6e> 
> (org.apache.xmlgraphics.xmp.Metadata)
> INFO  org.apache.fop.apps.FOUserAgent - Rendered page #1.
> DEBUG org.apache.fop.layoutmgr.AbstractPageSequenceLayoutManager - 
> page finished: 1, current num: 1
> ...
> DEBUG org.apache.fop.area.AreaTreeHandler - *Pages rendered: 1*
> DEBUG org.apache.fop.area.AreaTreeHandler - Avg render time: 
> 11734ms/page (5pages/min)
>
>
>