Hello,
I am tasked with generating various barcodes. The java class for this will be
called by a webservice to generate for example a barcode39 and a PDF417
barcode. My problem is, because it is a webservice I will be fulfilling, I
prefer to output a byte array instead of anything iText specific, as I can’t
predict what kind of client will access my WebService. Now all that seems fine
until I try to test what I have done by grabbing the byte array putting it into
an input stream and try to remake the image and write that image to a file to
view it.
So I have attempted to do something like the following, but I get a null object
when I read the byte Input Stream with the read method of javax.imageio. This
leads to an IllegalArgumentException when I try to write with the javax.imageio
.
I tried to then used the iText document object and grab the byte array and
write the result of it to a file, but got the “…The byte array is not a
recognized imageformat. “ so that approach yielded a pdf file with no image.
public byte [] makeBarcodeBytes39(BarcodeSpec bCdeSpec)
{
Barcode39 code39 = new Barcode39();
byte [] barCdeImg = null;
String inputStr = StrArrToStr(bCdeSpec.getPdfData(),
bCdeSpec.getDataDelimiter());
inputStr = inputStr.toUpperCase();
// code39.setCode(inputStr);
code39.setStartStopText(false);
code39.setExtended(true);
barCdeImg = code39.getBarsCode39("SDFASFAASDASDFAWDFERQWRTRTYE");
return barCdeImg;
}
Then in my main function which I am using to do a unitTest I have the following
byte [] myByteArr = null;
System.out.println("now about to call teh barcvodeBytes
39");
myByteArr = bCdeGen.makeBarcodeBytes39(bCdeSpec);
if(myByteArr != null)
System.out.println("The byte array is not null");
java.io.ByteArrayInputStream inputStr = new
ByteArrayInputStream(myByteArr);
if(inputStr == null)
System.out.println("The inputStr for
ByteArrayInputStream is null");
System.out.println("Now about to read the image " +
inputStr);
BufferedImage bi = javax.imageio.ImageIO.read(inputStr);
String readernames [] =
javax.imageio.ImageIO.getReaderFormatNames();
for (int c = 0; c < readernames.length; c++)
System.out.println("tje readers are " + readernames[c]);
if(bi == null)
System.out.println("The buffered image is null");
File outputfile = new File("c:/temp/savedbcde39.png");
javax.imageio.ImageIO.write(bi, "png", outputfile);
…..
_________________________________________________________________
Windows Live™: Keep your life in sync.
http://windowslive.com/explore?ocid=TXT_TAGLM_BR_life_in_synch_052009------------------------------------------------------------------------------
The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your
production scanning environment may not be a perfect world - but thanks to
Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700
Series Scanner you'll get full speed at 300 dpi even with all image
processing features enabled. http://p.sf.net/sfu/kodak-com
_______________________________________________
iText-questions mailing list
iText-questions@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/itext-questions
Buy the iText book: http://www.1t3xt.com/docs/book.php
Check the site with examples before you ask questions:
http://www.1t3xt.info/examples/
You can also search the keywords list: http://1t3xt.info/tutorials/keywords/
