PDFBox COSStream closed before use
We're getting intermittent exceptions from our pdf generator that runs in a docker container in the cloud. One portion of the generator handles taking an SVG document and loading it into a pdf. Every 100ish calls it throws the following exception from
importPageAsForm(tmpSVGPdf, 0).
java.io.IOException: COSStream has been closed and cannot be read. Perhaps its enclosing PDDocument has been closed?
We haven't been able to reproduce this issue locally.
First we build the pdf that will contain the loaded svg:
PDDocument pdf = new PDDocument();
PDPage page = new PDPage(new PDRectangle(width, height));
pdf.addPage(page);
Then we open a PDF stream & an output stream for the svg transcoder.
try(PDPageContentStream stream = new PDPageContentStream(pdf, page, PDPageContentStream.AppendMode.APPEND,false, true))
try (ByteArrayOutputStream byteStream = new ByteArrayOutputStream())
When we hit importPageAsForm below we pass in the temporary SVG document and somewhere within that function it hits a COSStream that is closed. We run the function locally with the same data and it always works fine.
TranscoderInput input = new TranscoderInput(new ByteArrayInputStream(element.getEncodedData().getBytes()));
TranscoderOutput output = new TranscoderOutput(byteStream);
pdfTranscoder.transcode(input, output);
PDDocument tmpSVGPdf = PDDocument.load(byteStream.toByteArray());
LayerUtility layerUtil = new LayerUtility(pdf);
PDFormXObject svgObj = layerUtil.importPageAsForm(tmpSVGPdf, 0);
stream.drawForm(svgObj);
return Optional.of(pdf);
java svg pdfbox
asked Nov 14 '18 at 3:49
LiamLiam
376
add a comment |
We're getting intermittent exceptions from our pdf generator that runs in a docker container in the cloud. One portion of the generator handles taking an SVG document and loading it into a pdf. Every 100ish calls it throws the following exception from
importPageAsForm(tmpSVGPdf, 0).
java.io.IOException: COSStream has been closed and cannot be read. Perhaps its enclosing PDDocument has been closed?
We haven't been able to reproduce this issue locally.
First we build the pdf that will contain the loaded svg:
PDDocument pdf = new PDDocument();
PDPage page = new PDPage(new PDRectangle(width, height));
pdf.addPage(page);
Then we open a PDF stream & an output stream for the svg transcoder.
try(PDPageContentStream stream = new PDPageContentStream(pdf, page, PDPageContentStream.AppendMode.APPEND,false, true))
try (ByteArrayOutputStream byteStream = new ByteArrayOutputStream())
When we hit importPageAsForm below we pass in the temporary SVG document and somewhere within that function it hits a COSStream that is closed. We run the function locally with the same data and it always works fine.
TranscoderInput input = new TranscoderInput(new ByteArrayInputStream(element.getEncodedData().getBytes()));
TranscoderOutput output = new TranscoderOutput(byteStream);
pdfTranscoder.transcode(input, output);
PDDocument tmpSVGPdf = PDDocument.load(byteStream.toByteArray());
LayerUtility layerUtil = new LayerUtility(pdf);
PDFormXObject svgObj = layerUtil.importPageAsForm(tmpSVGPdf, 0);
stream.drawForm(svgObj);
return Optional.of(pdf);
java svg pdfbox
asked Nov 14 '18 at 3:49
LiamLiam
376
2
I suspect you're closing tmpSVGPdf too early, maybe some objects are used in the destination doc, althoughimportPageAsFormshould make a proper clone. Also make sure you're using the latest PDFBox version, which one were you using?
– Tilman Hausherr
Nov 14 '18 at 5:11
add a comment |
We're getting intermittent exceptions from our pdf generator that runs in a docker container in the cloud. One portion of the generator handles taking an SVG document and loading it into a pdf. Every 100ish calls it throws the following exception from
importPageAsForm(tmpSVGPdf, 0).
java.io.IOException: COSStream has been closed and cannot be read. Perhaps its enclosing PDDocument has been closed?
We haven't been able to reproduce this issue locally.
First we build the pdf that will contain the loaded svg:
PDDocument pdf = new PDDocument();
PDPage page = new PDPage(new PDRectangle(width, height));
pdf.addPage(page);
Then we open a PDF stream & an output stream for the svg transcoder.
try(PDPageContentStream stream = new PDPageContentStream(pdf, page, PDPageContentStream.AppendMode.APPEND,false, true))
try (ByteArrayOutputStream byteStream = new ByteArrayOutputStream())
When we hit importPageAsForm below we pass in the temporary SVG document and somewhere within that function it hits a COSStream that is closed. We run the function locally with the same data and it always works fine.
TranscoderInput input = new TranscoderInput(new ByteArrayInputStream(element.getEncodedData().getBytes()));
TranscoderOutput output = new TranscoderOutput(byteStream);
pdfTranscoder.transcode(input, output);
PDDocument tmpSVGPdf = PDDocument.load(byteStream.toByteArray());
LayerUtility layerUtil = new LayerUtility(pdf);
PDFormXObject svgObj = layerUtil.importPageAsForm(tmpSVGPdf, 0);
stream.drawForm(svgObj);
return Optional.of(pdf);
java svg pdfbox
asked Nov 14 '18 at 3:49
LiamLiam
376
We're getting intermittent exceptions from our pdf generator that runs in a docker container in the cloud. One portion of the generator handles taking an SVG document and loading it into a pdf. Every 100ish calls it throws the following exception from
importPageAsForm(tmpSVGPdf, 0).
java.io.IOException: COSStream has been closed and cannot be read. Perhaps its enclosing PDDocument has been closed?
We haven't been able to reproduce this issue locally.
First we build the pdf that will contain the loaded svg:
PDDocument pdf = new PDDocument();
PDPage page = new PDPage(new PDRectangle(width, height));
pdf.addPage(page);
Then we open a PDF stream & an output stream for the svg transcoder.
try(PDPageContentStream stream = new PDPageContentStream(pdf, page, PDPageContentStream.AppendMode.APPEND,false, true))
try (ByteArrayOutputStream byteStream = new ByteArrayOutputStream())
When we hit importPageAsForm below we pass in the temporary SVG document and somewhere within that function it hits a COSStream that is closed. We run the function locally with the same data and it always works fine.
TranscoderInput input = new TranscoderInput(new ByteArrayInputStream(element.getEncodedData().getBytes()));
TranscoderOutput output = new TranscoderOutput(byteStream);
pdfTranscoder.transcode(input, output);
PDDocument tmpSVGPdf = PDDocument.load(byteStream.toByteArray());
LayerUtility layerUtil = new LayerUtility(pdf);
PDFormXObject svgObj = layerUtil.importPageAsForm(tmpSVGPdf, 0);
stream.drawForm(svgObj);
return Optional.of(pdf);
java svg pdfbox
java svg pdfbox
asked Nov 14 '18 at 3:49
LiamLiam
376
asked Nov 14 '18 at 3:49
LiamLiam
376
edited Nov 23 '18 at 22:51
Liam
asked Nov 14 '18 at 3:49
LiamLiam
376
asked Nov 14 '18 at 3:49
LiamLiam
376
asked Nov 14 '18 at 3:49
LiamLiam
376
376
2
I suspect you're closing tmpSVGPdf too early, maybe some objects are used in the destination doc, althoughimportPageAsFormshould make a proper clone. Also make sure you're using the latest PDFBox version, which one were you using?
– Tilman Hausherr
Nov 14 '18 at 5:11
add a comment |
2
I suspect you're closing tmpSVGPdf too early, maybe some objects are used in the destination doc, althoughimportPageAsFormshould make a proper clone. Also make sure you're using the latest PDFBox version, which one were you using?
– Tilman Hausherr
Nov 14 '18 at 5:11
2
2
I suspect you're closing tmpSVGPdf too early, maybe some objects are used in the destination doc, although
importPageAsForm should make a proper clone. Also make sure you're using the latest PDFBox version, which one were you using?– Tilman Hausherr
Nov 14 '18 at 5:11
I suspect you're closing tmpSVGPdf too early, maybe some objects are used in the destination doc, although
importPageAsForm should make a proper clone. Also make sure you're using the latest PDFBox version, which one were you using?– Tilman Hausherr
Nov 14 '18 at 5:11
add a comment |
1 Answer
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Ok, so in my initial post I actual had 'tmpSVGPdf.close()' This particular line was untested at time of posting which is my fault. It turns out that this was the issue. We weren't closing the tempSVG and for some reason that was causing the problem, despite the fact the close comes after where the exception throws. We inserted close() after the importPageAsForm() call & the issue no longer presents itself. Go figure!
answered Nov 23 '18 at 22:55
LiamLiam
376
add a comment |
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Ok, so in my initial post I actual had 'tmpSVGPdf.close()' This particular line was untested at time of posting which is my fault. It turns out that this was the issue. We weren't closing the tempSVG and for some reason that was causing the problem, despite the fact the close comes after where the exception throws. We inserted close() after the importPageAsForm() call & the issue no longer presents itself. Go figure!
answered Nov 23 '18 at 22:55
LiamLiam
376
add a comment |
Ok, so in my initial post I actual had 'tmpSVGPdf.close()' This particular line was untested at time of posting which is my fault. It turns out that this was the issue. We weren't closing the tempSVG and for some reason that was causing the problem, despite the fact the close comes after where the exception throws. We inserted close() after the importPageAsForm() call & the issue no longer presents itself. Go figure!
answered Nov 23 '18 at 22:55
LiamLiam
376
add a comment |
Ok, so in my initial post I actual had 'tmpSVGPdf.close()' This particular line was untested at time of posting which is my fault. It turns out that this was the issue. We weren't closing the tempSVG and for some reason that was causing the problem, despite the fact the close comes after where the exception throws. We inserted close() after the importPageAsForm() call & the issue no longer presents itself. Go figure!
answered Nov 23 '18 at 22:55
LiamLiam
376
Ok, so in my initial post I actual had 'tmpSVGPdf.close()' This particular line was untested at time of posting which is my fault. It turns out that this was the issue. We weren't closing the tempSVG and for some reason that was causing the problem, despite the fact the close comes after where the exception throws. We inserted close() after the importPageAsForm() call & the issue no longer presents itself. Go figure!
answered Nov 23 '18 at 22:55
LiamLiam
376
answered Nov 23 '18 at 22:55
LiamLiam
376
answered Nov 23 '18 at 22:55
LiamLiam
376
answered Nov 23 '18 at 22:55
LiamLiam
376
376
add a comment |
add a comment |
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2
I suspect you're closing tmpSVGPdf too early, maybe some objects are used in the destination doc, although
importPageAsFormshould make a proper clone. Also make sure you're using the latest PDFBox version, which one were you using?– Tilman Hausherr
Nov 14 '18 at 5:11