I have a servlet that generates PDF reports based on some data in a
database. I am using the Arial font (c:/windows/fonts/arial.ttf). While
stress-testing this servlet (>10 simultaneous connections), I am
occasionally getting a java.io.IOException: Bad file descriptor.
To alleviate this problem, I was trying to pre-load the font in the init
method of the servlet (see below) but I am still getting this exception when
closing the PDF document. Any suggestions on how to change the code to
avoid this problem would be very welcome!
Here is the init method:
private static final String FONT = "c:/windows/fonts/arial.ttf";
/** Arial arialPlain - plain. */
private Font arialPlain;
/** Arial arialPlain - bold. */
private Font arialBold;
public void init() {
try {
BaseFont bf =
BaseFont.createFont(FONT, BaseFont.IDENTITY_H,
BaseFont.EMBEDDED);
arialPlain = new Font(bf , FONT_SIZE);
arialBold = new Font(bf, FONT_SIZE, Font.BOLD);
} catch (IOException e) {
e.printStackTrace(System.err);
} catch (DocumentException e) {
e.printStackTrace(System.err);
}
}
And the main method is fairly straight forward as in:
ByteArrayOutputStream ba = new ByteArrayOutputStream();
// Set document margins
Document document = new Document(PageSize.A4,
PDFDOC_MARGIN, PDFDOC_MARGIN, PDFDOC_MARGIN, PDFDOC_MARGIN);
// Use the Arial arialPlain and embedd it
// Should give us basic UTF-8 support for most characters
PdfWriter.getInstance(document, ba);
document.open();
...
Paragraph para = new Paragraph(
new Chunk("Assessment/�valuation:", arialBold));
document.add(para);
...
document.close();
--
Tomas Hansson
mailto:[EMAIL PROTECTED]
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