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Posted to dev@pdfbox.apache.org by "Konstantin Kakunin (JIRA)" <ji...@apache.org> on 2015/06/02 08:09:21 UTC

[jira] [Updated] (PDFBOX-2822) infinite loop of searching for a key in PDResources

     [ https://issues.apache.org/jira/browse/PDFBOX-2822?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Konstantin Kakunin updated PDFBOX-2822:
---------------------------------------
    Description: 
error in code of class - org.apache.pdfbox.pdmodel.PDResources
{code}
    private COSName createKey(COSName kind, String prefix)
    {
        COSDictionary dict = (COSDictionary)resources.getDictionaryObject(kind);
        if (dict == null)
        {
            return COSName.getPDFName(prefix + 1);
        }

        // find a unique key
        String key;
        do
        {
            key = prefix + (dict.keySet().size() + 1);
        }
        while (dict.containsKey(key));    <--------------- infinite loop of searching for a key
        return COSName.getPDFName(key);
    }
{code}
my test code:
{code}
public class pdfmain_svg {

	public static void main(String[] args) throws Exception {
		System.out.println("hello");
		PDDocument document = PDDocument.load(new File(
				"d:\\Project\\pdfbox-image\\Acro6JSGuide.pdf"));

		float fontSize = 10f;

		PDFont font = PDType0Font.load(document, new File(
				"c:\\Windows\\Fonts\\Arial.TTF"));

		for (int pageIndex = 0; pageIndex < document.getNumberOfPages(); pageIndex++) {
			System.out.println("page index = " + pageIndex);
			PDPage page = document.getPage(pageIndex);  
			PDPageContentStream contentStream = new PDPageContentStream(
					document, page, true, true);
			contentStream.setFont(font, fontSize); <---------------- hang on page 6
			contentStream.setNonStrokingColor(Color.LIGHT_GRAY);
			contentStream.beginText();
			contentStream.newLineAtOffset(100, 100);
			contentStream.showText("Test printing");
			contentStream.endText();
			contentStream.close();
		}
		File f = new File("d:\\work\\kostya.pdf");
		document.save(f);
		document.close();
		System.out.println("f=" + f.getAbsolutePath() + ": " + f.exists());
	}

}

{code}

  was:
error in code of class - org.apache.pdfbox.pdmodel.PDResources
{code}
    private COSName createKey(COSName kind, String prefix)
    {
        COSDictionary dict = (COSDictionary)resources.getDictionaryObject(kind);
        if (dict == null)
        {
            return COSName.getPDFName(prefix + 1);
        }

        // find a unique key
        String key;
        do
        {
            key = prefix + (dict.keySet().size() + 1);
        }
        while (dict.containsKey(key));    <--------------- infinite loop of searching for a key
        return COSName.getPDFName(key);
    }
my test code:
{code}
public class pdfmain_svg {

	public static void main(String[] args) throws Exception {
		System.out.println("hello");
		PDDocument document = PDDocument.load(new File(
				"d:\\Project\\pdfbox-image\\Acro6JSGuide.pdf"));

		float fontSize = 10f;

		PDFont font = PDType0Font.load(document, new File(
				"c:\\Windows\\Fonts\\Arial.TTF"));

		for (int pageIndex = 0; pageIndex < document.getNumberOfPages(); pageIndex++) {
			System.out.println("page index = " + pageIndex);
			PDPage page = document.getPage(pageIndex);  
			PDPageContentStream contentStream = new PDPageContentStream(
					document, page, true, true);
			contentStream.setFont(font, fontSize); <---------------- hang on page 6
			contentStream.setNonStrokingColor(Color.LIGHT_GRAY);
			contentStream.beginText();
			contentStream.newLineAtOffset(100, 100);
			contentStream.showText("Test printing");
			contentStream.endText();
			contentStream.close();
		}
		File f = new File("d:\\work\\kostya.pdf");
		document.save(f);
		document.close();
		System.out.println("f=" + f.getAbsolutePath() + ": " + f.exists());
	}

}

{code}


> infinite loop of searching for a key in PDResources
> ---------------------------------------------------
>
>                 Key: PDFBOX-2822
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-2822
>             Project: PDFBox
>          Issue Type: Bug
>          Components: PDModel
>    Affects Versions: 2.0.0
>            Reporter: Konstantin Kakunin
>
> error in code of class - org.apache.pdfbox.pdmodel.PDResources
> {code}
>     private COSName createKey(COSName kind, String prefix)
>     {
>         COSDictionary dict = (COSDictionary)resources.getDictionaryObject(kind);
>         if (dict == null)
>         {
>             return COSName.getPDFName(prefix + 1);
>         }
>         // find a unique key
>         String key;
>         do
>         {
>             key = prefix + (dict.keySet().size() + 1);
>         }
>         while (dict.containsKey(key));    <--------------- infinite loop of searching for a key
>         return COSName.getPDFName(key);
>     }
> {code}
> my test code:
> {code}
> public class pdfmain_svg {
> 	public static void main(String[] args) throws Exception {
> 		System.out.println("hello");
> 		PDDocument document = PDDocument.load(new File(
> 				"d:\\Project\\pdfbox-image\\Acro6JSGuide.pdf"));
> 		float fontSize = 10f;
> 		PDFont font = PDType0Font.load(document, new File(
> 				"c:\\Windows\\Fonts\\Arial.TTF"));
> 		for (int pageIndex = 0; pageIndex < document.getNumberOfPages(); pageIndex++) {
> 			System.out.println("page index = " + pageIndex);
> 			PDPage page = document.getPage(pageIndex);  
> 			PDPageContentStream contentStream = new PDPageContentStream(
> 					document, page, true, true);
> 			contentStream.setFont(font, fontSize); <---------------- hang on page 6
> 			contentStream.setNonStrokingColor(Color.LIGHT_GRAY);
> 			contentStream.beginText();
> 			contentStream.newLineAtOffset(100, 100);
> 			contentStream.showText("Test printing");
> 			contentStream.endText();
> 			contentStream.close();
> 		}
> 		File f = new File("d:\\work\\kostya.pdf");
> 		document.save(f);
> 		document.close();
> 		System.out.println("f=" + f.getAbsolutePath() + ": " + f.exists());
> 	}
> }
> {code}



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