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barcode.fo Example Errors in FOP
What are those errors when using "barcode.fo" example in FOP to generated a PDF file?
✍: FYIcenter.com
FOP comes with an example XSL-FO file, barcode.fo,
which shows how to generate barcodes in PDF.
But it has a number errors, if you use the "fop" command to convert it into a PDF file:
fyicenter> cd \local\fop-2.x\fop fyicenter> fop examples\fo\advanced\barcode.fo \temp\barcode.pdf ... ... org.apache.fop.events.LoggingEventListener processEvent WARNING: Font "Barcode,normal,400" not found. Substituting with "any,normal,400". ...
This is not really a warning. It is an error. FOP could not find the "Barcode" font. We need to provide the FOP configuration file that specify where the font file is:
fyicenter> fop -c examples\fo\advanced\bar.conf.xml examples\fo\advanced\barcode.fo \temp\carcode.pdf ... java.lang.RuntimeException: java.io.FileNotFoundException: \local\fop-2.x\examples\fo\advanced\examples\fo\advanced\K3.xml (The system cannot find the path specified) at org.apache.fop.fonts.LazyFont.load(LazyFont.java:130) at org.apache.fop.fonts.LazyFont.getAscender(LazyFont.java:233) at org.apache.fop.fonts.Font.getAscender(Font.java:118) at org.apache.fop.layoutmgr.BlockLayoutManager.initialize (BlockLayoutManager.java:82) at org.apache.fop.layoutmgr.AbstractLayoutManager.getChildLM (AbstractLayoutManager.java:118) at org.apache.fop.layoutmgr.FlowLayoutManager.getNextKnuthElements (FlowLayoutManager.java:128) at org.apache.fop.layoutmgr.FlowLayoutManager.getNextKnuthElements (FlowLayoutManager.java:69) at org.apache.fop.layoutmgr.PageBreaker.getNextKnuthElements (PageBreaker.java:252) at org.apache.fop.layoutmgr.AbstractBreaker.getNextBlockList (AbstractBreaker.java:643) at org.apache.fop.layoutmgr.PageBreaker.getNextBlockList (PageBreaker.java:178) at org.apache.fop.layoutmgr.PageBreaker.getNextBlockList (PageBreaker.java:158) at org.apache.fop.layoutmgr.AbstractBreaker.doLayout (AbstractBreaker.java:384) at org.apache.fop.layoutmgr.PageBreaker.doLayout(PageBreaker.java:112) ...
Now the path name of metrics file, \local\fop-2.x\examples\fo\advanced\examples\fo\advanced\K3.xml, is wrong. We need to modify the FOP configuration file and try it again:
fyicenter> copy examples\fo\advanced\bar.conf.xml examples\fo\advanced\bar-original.conf.xml fyicenter> edit examples\fo\advanced\bar.conf.xml ... <fonts> <font metrics-url="K3.xml" kerning="no" embed-url="K3.ttf"> ... fyicenter> fop -c examples\fo\advanced\bar.conf.xml examples\fo\advanced\barcode.fo \temp\carcode.pdf ... java.lang.RuntimeException: org.apache.fop.apps.FOPException: Missing metrics-version attribute - please regenerate the font metrics file with a more recent version of FOP. org.xml.sax.SAXException: Missing metrics-version attribute - please regenerate the font metrics file with a more recent version of FOP. at org.apache.fop.fonts.LazyFont.load(LazyFont.java:125) at org.apache.fop.fonts.LazyFont.getAscender(LazyFont.java:233) at org.apache.fop.fonts.Font.getAscender(Font.java:118) at org.apache.fop.layoutmgr.BlockLayoutManager.initialize (BlockLayoutManager.java:82) at org.apache.fop.layoutmgr.AbstractLayoutManager.getChildLM (AbstractLayoutManager.java:118) at org.apache.fop.layoutmgr.FlowLayoutManager.getNextKnuthElements (FlowLayoutManager.java:128) at org.apache.fop.layoutmgr.FlowLayoutManager.getNextKnuthElements (FlowLayoutManager.java:69) ...
The metrics file located properly now. But it is outdated. See the next tutorial on how to regenerate the metrics file.
⇒ Generate K3.xml Metrics File in FOP
2016-07-02, 3592👍, 0💬
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