I'm using iText to generate PDF on the fly in a servlet running
under Tomcat 4.0.3. The PDF document requires that an image file
and True Type font file be packaged with the class that creates
the PDF. In my development environment where the image and font
files are read directly from the file system, everything works just
fine. In my production environment (UNIX), where the PDF writing class,
font and image files are packaged in a jar, I get a division by zero
error as shown in the stack trace at the end of this message.
Here's the java code for creating the font:
BaseFont ocra = null;
ClassLoader cl = Thread.currentThread().getContextClassLoader();
URL ocraURL = cl.getResource("com/qec/util/fonts/OCRAN.TTF");
if (ocraURL != null) {
byte[] bytes = new byte[ocraURL.openConnection().getContentLength()];
ocraURL.openStream().read(bytes);
ocra = BaseFont.createFont("OCRAN.TTF", BaseFont.WINANSI,
BaseFont.EMBEDDED, BaseFont.CACHED, bytes, null);
}
Since my ultimate goal was to make this code reusable outside of
servlets, the class which contains the iText code and the required font
and image files are packaged with the servlet in a jar file which is
placed in the WEB-INF/lib directory of my web application.
I know that the ClassLoader.getResource() code works, because I load an
image file using the same technique. Am I incorrect in thinking that
embedded True Type fonts can be used in this fashion outside of the
Windows environment?
Any insight into this problem is greatly appreciated.
Jeff
Here's the previously mentioned stack trace:
ExceptionConverter: java.lang.ArithmeticException: / by zero
at com.lowagie.text.pdf.TrueTypeFont.getFontDescriptor(Unknown Source)
at com.lowagie.text.pdf.TrueTypeFont.writeFont(Unknown Source)
at com.lowagie.text.pdf.FontDetails.writeFont(Unknown Source)
at com.lowagie.text.pdf.PdfWriter.close(Unknown Source)
at com.lowagie.text.pdf.PdfDocument.close(Unknown Source)
at com.lowagie.text.Document.close(Unknown Source)
at com.qec.util.InvoiceWriter.writePdf(InvoiceWriter.java:103)
at com.qec.offsite.servlet.InvoiceServlet.doInvoiceAsPDF(InvoiceServlet.java:106)
at com.qec.offsite.servlet.InvoiceServlet.processRequest(InvoiceServlet.java:51)
at com.qec.offsite.servlet.InvoiceServlet.doGet(InvoiceServlet.java:39)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at
com.qec.offsite.servlet.AbstractOffsiteServlet.service(AbstractOffsiteServlet.java:60)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.ja
va:247)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2343)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.ajp.tomcat4.Ajp13Processor.process(Ajp13Processor.java:429)
at org.apache.ajp.tomcat4.Ajp13Processor.run(Ajp13Processor.java:495)
at java.lang.Thread.run(Thread.java:484)
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