I got the same exception as what Swapan got. I think the problem is just what Thomas mentioned: "Is it possible that you are mis-mapping the elements from FOP? the batik:flowText element needs to become a bati.extension.svg.FlowTextElement the others need to be mapped likewise. Just mapping them to generic elements won't work."
My question is how to map the element to batik.extension.svg.FlowTextElement. Once I set up the BatikBridgeExtension and BatikDomExtension, getBridge() should automatically map the DOM element to FlowTextElement. But through debug, I saw the element is generic element not FlowTextElement. Can you please tell me what I am missing?
The one thing I did notice is that above in Batik it's the ExtensibleSVGDOMImplementation that maps namespaces and localNames into DOM nodes. It uses the Service Provider Interface to locate DOM extensions, so you might want to look at:
http://java.sun.com/j2se/1.3/docs/guide/jar/jar.html
To understand what you need to do for it to know about the batik extensions, the bridge does something similar but they are different service classes so you need to provide two of them. Look at xml-batik/resources/META-INF/services to see what serivce files Batik Provides.
Thank you very much.
Jay
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Subject: RE: Batik Extension/FOP problem From: Thomas E Deweese <[EMAIL PROTECTED]> Date: Fri, 7 Mar 2003 08:57:39 -0500 To: [EMAIL PROTECTED]
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"SG" == Swapan Golla <[EMAIL PROTECTED]> writes:
SG> I am trying to use batik extensions through FOP. I added
SG> BatikElementMapping and BatikObj objects into my FOP src and
then
SG> registered them in the driver class but I am still getting
some
SG> exceptions. Can anybody help me out ?
I don't know, The error you are getting is indicative of passing a non Batik DOM node into Batik. Is it possible that you are mis-mapping the elements from FOP? the batik:flowText element needs to become a bati.extension.svg.FlowTextElement the others need to be mapped likewise. Just mapping them to generic elements won't work.
SG> I am trying to embed the flowText.svg ( provided by batik SG> distribution ) into a simple fo document and then trying to SG> convert into a pdf.
SG> Swapan.
SG> [ERROR] svg graphic could not be built: null SG> java.lang.ClassCastException at SG> org.apache.batik.bridge.CSSUtilities.getComputedStyle(CSSUtilities.java:96) SG> at SG> org.apache.batik.bridge.CSSUtilities.convertDisplay(CSSUtilities.java:509) SG> at SG> org.apache.batik.bridge.GVTBuilder.buildGraphicsNode(GVTBuilder.java:176) SG> at SG> org.apache.batik.bridge.GVTBuilder.buildComposite(GVTBuilder.java:148) SG> at SG> org.apache.batik.bridge.GVTBuilder.buildGraphicsNode(GVTBuilder.java:188) SG> at SG> org.apache.batik.bridge.GVTBuilder.buildComposite(GVTBuilder.java:148) SG> at org.apache.batik.bridge.GVTBuilder.build(GVTBuilder.java:76) at SG> org.apache.fop.render.pdf.PDFRenderer.renderSVGDocument(PDFRenderer.java:513) SG> at SG> org.apache.fop.render.pdf.PDFRenderer.renderSVGArea(PDFRenderer.java:472) SG> at org.apache.fop.svg.SVGArea.render(SVGArea.java:58) at SG> org.apache.fop.render.pdf.PDFRenderer.renderForeignObjectArea(PDFRenderer.java:456) SG> at SG> org.apache.fop.layout.inline.ForeignObjectArea.render(ForeignObjectArea.java:46) SG> at SG> org.apache.fop.render.AbstractRenderer.renderAreaContainer(AbstractRenderer.java:408) SG> at org.apache.fop.layout.ColumnArea.render(ColumnArea.java:29) at SG> org.apache.fop.render.AbstractRenderer.renderSpanArea(AbstractRenderer.java:57).....................
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