Re: Problems loading an SVG file to Document

Robert Marcano Thu, 22 Aug 2013 12:29:54 -0700

On 08/22/2013 01:44 PM, Mark Riley wrote:

I don't get any generated crash files nor a stack trace.


With your provided code it fails at the same spot


            String parser = XMLResourceDescriptor.getXMLParserClassName();

             SAXSVGDocumentFactory f = new SAXSVGDocumentFactory(parser);  
//Fails here, Drops into a FINALLY statement in the application.

You must have some code in those multiple layer of your applcation thatmust be eating the Exception (do a try/catch and not print/, log orre/throw exception)


try this


SAXSVGDocumentFactory f = null;
try {
        f = new SAXSVGDocumentFactory(parser);
} catch (Throwable e) {
        // Notice that it is Throwable and not Exception,
        // it catches Error too
        e.printStackTrace();
        throw e;
}


             String uri = image.getFilename();
             System.out.println(uri);
             File file = new File("myFile.svg");
             FileUtils.copyInputStreamToFile(image.getStream(), file);
             System.out.println("File saved");

             InputStream is = new BufferedInputStream(new 
FileInputStream(file));
             Document doc = f.createDocument(uri, is);
             is.close();

The code that calls it looks like

      try {
             setProgress(1);
             ship.mash();
         } catch (Exception ex) {
             StatusDisplayer.getDefault().setStatusText("Project verify 
failed!");
             LOGGER.log(Level.SEVERE, "\nVerify failed!\n");
             Exceptions.printStackTrace(ex);
         } finally {
         }
         return ship;

ship.mash() starts a long process of verifying the users information which in 
turn calls the SVG code. When the SVG code 'Fails' it falls into the finally 
statement.

Thanks
Mark

-----Original Message-----
From: Robert Marcano [mailto:rob...@marcanoonline.com]
Sent: Thursday, August 22, 2013 6:03 AM
To: batik-users@xmlgraphics.apache.org
Subject: Re: Problems loading an SVG file to Document

On 08/21/2013 06:17 PM, Mark Riley wrote:

I can't seem to get it to generate a stack trace. It's being run in a thread 
and the thread just dies.

I put a break point at SAXSVGDocumentFactory and when I try to step
into it the thread dies. This code is surrounded by a try-catch so I'm
not too sure what's going on. Sorry, I know that info is not too
helpful. I just seem to lose the paper trail right at
SAXSVGDocumentFactory f = new SAXSVGDocumentFactory(parser);

Thanks,
Mark



Ummm a crash instead of stack trace!

If it is a JVM crash check the directory where the application is running, you 
should find a crash dump file there. You can force a location with the JVM 
option  -XX:ErrorFile=path_to_file/java_error.log
or any file name you want, do not run it under a debugger and check for the 
generated file

try something like (this is a test no pretty code), lets see if you get printed 
if the contents if read and saved to a file, probably the crash happens reading 
the stream and not parsing it:

=========================
String parser = XMLResourceDescriptor.getXMLParserClassName();

SAXSVGDocumentFactory f = new SAXSVGDocumentFactory(parser);

String uri = image.getFilename();
System.out.println(uri);
File file = new File("myFile.svg");
FileUtils.copyTofile(image.getStream(), file); System.out.println("File saved");

InputStream is = new BufferedInputStream(new FileInputStream(file)); Document 
doc = f.createDocument(uri, is); is.close(); =========================


-----Original Message-----
From: Robert Marcano [mailto:rob...@marcanoonline.com]
Sent: Wednesday, August 21, 2013 3:35 PM
To: batik-users@xmlgraphics.apache.org
Subject: Re: Problems loading an SVG file to Document

On 08/21/2013 12:27 PM, Mark Riley wrote:

Im using the code:

String parser = XMLResourceDescriptor.getXMLParserClassName();

SAXSVGDocumentFactory f = new SAXSVGDocumentFactory(parser);

Document doc = f.createDocument(image.getFilename(),
image.getStream());

It seems parser returns null and my application crashes out.


Can you copy the stacktrace, because it is normal for
getXMLParserClassName() to returns null, the default parser is the JRE included 
parser.

See:

http://svn.apache.org/viewvc/xmlgraphics/batik/tags/batik-1_7/sources/
org/apache/batik/dom/util/SAXDocumentFactory.java?revision=608260&view
=markup

Line 404


Thanks,

Mark


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