RE: Difficulties embedding FOP by firing SAX events myself
That is a much more sensible than messing about with pretend XMLReaders.
Cheers
---
Paul Smith
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Sent: 15 November 2001 13:55
> To: [EMAIL PROTECTED]
> Subject: Re: Difficulties embedding FOP by firing SAX events myself
>
>
>
> This is the code I use to get the handler. I don't set the
> input stream at
> all. The setup order is hightly dependent. This works on 0.20.2.
>
> // THIS IS JUST SOME SET UP CODE
> // set up Logger
> Hierarchy hierarchy = Hierarchy.getDefaultHierarchy();
> PatternFormatter formatter = new PatternFormatter( "
> [%{priority}]:%{message}\n%{throwable}" );
> LogTarget target = new StreamTarget(System.out, formatter);
> hierarchy.setDefaultLogTarget(target);
> Logger log = hierarchy.getLoggerFor("fop");
> // get output stream one way or
> FileOutputStream out = new FileOutputStream( "filename.pdf" );
>
> // HERE's THE CODE YOU NEED
> Driver driver = new Driver();
> driver.setOutputStream(out);
> driver.setLogger( log );
> driver.setRenderer( driver.RENDER_PDF );
> DefaultHandler handler = (DefaultHandler)
> driver.getContentHandler() );
> handler.startDocument();
> ...
> handler.endDocument();
> out.close();
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Re: Difficulties embedding FOP by firing SAX events myself
This is the code I use to get the handler. I don't set the input stream at
all. The setup order is hightly dependent. This works on 0.20.2.
// THIS IS JUST SOME SET UP CODE
// set up Logger
Hierarchy hierarchy = Hierarchy.getDefaultHierarchy();
PatternFormatter formatter = new PatternFormatter( "
[%{priority}]:%{message}\n%{throwable}" );
LogTarget target = new StreamTarget(System.out, formatter);
hierarchy.setDefaultLogTarget(target);
Logger log = hierarchy.getLoggerFor("fop");
// get output stream one way or
FileOutputStream out = new FileOutputStream( "filename.pdf" );
// HERE's THE CODE YOU NEED
Driver driver = new Driver();
driver.setOutputStream(out);
driver.setLogger( log );
driver.setRenderer( driver.RENDER_PDF );
DefaultHandler handler = (DefaultHandler) driver.getContentHandler() );
handler.startDocument();
...
handler.endDocument();
out.close();
fop-dev-return-11540-jthaemlitz=oreillyauto.com@XML.
APACHE.ORG To:
"Fop-Dev (E-mail)" <[EMAIL PROTECTED]>
cc:
"Smith, Paul" <[EMAIL PROTECTED]>
11/15/01 06:10 AM
Subject: Difficulties embedding FOP by firing SAX
Please respond to fop-dev events
myself
Hi,
I am trying to embed FOP within my own Java application as described in
http://xml.apache.org/fop/embedding.html, specifically the third method:
"calling getContentHandler() and firing the SAX events yourself" and I am
running into difficulties!
I have a class called MyParser which fires the required events (it
implements XMLReader). Its parse method that calls SAX events on
ContentHandler and ignores the InputStream. If I do:
(I have simplifed the code samples so their maybe a few typos)
MyParser parser = new MyParser();
XMLSerializer serializer = new XMLSerializer(new
FileOutputStream("output.fo"), new OutputFormat(method, encoding,
indenting));
ContentHandler handler = serializer.asContentHandler();
parser.setContentHandler(handler);
parser.parse(new InputStream());
Then I can produce a well formed XSL-FO file that validates against the DTD
provided by N. Grigoriev from RenderX. Running fop on this file eg. "fop
output.fo output.pdf", generates output.pdf successfully.
HOWEVER, If I try and embed FOP by doing:
Driver driver = new Driver();
driver.setOutputStream(new FileOutputStream("output.pdf");
driver.setInputSource(new InputSource());
Logger logger =
Hierarchy.getDefaultHierarchy().getLoggerFor("foRender");
logger.setPriority(Priority.INFO);
driver.setLogger(logger);
MyParser parser = new MyParser();
driver.render(parser, new InputSource());
FOP generates output.pdf but when opened in Acrobat Reader I get "There was
an error opening this document. Could not repair file."
Closer inspection shows that the PDF has not been correctly generated at
all. The first 9 lines look like:
%PDF-1.3
%ª«¬
4 0 obj
<< /Type /Info
/Producer (null) >>
endobj
5 0 obj
<< /Length 235 /Filter /FlateDecode
>>
where as the first 9 lines of the PDF generated by running FOP from the
command line look like:
%PDF-1.3
%ª«¬
4 0 obj
<< /Type /Info
/Producer (FOP 0.20.1) >>
endobj
5 0 obj
<< /Length 296 /Filter [ /ASCII85Decode /FlateDecode ]
>>
During driver.render the logger prints out:
INFO10058 [foRender] (): building formatting object tree
DEBUG 10058 [fop ] (): setting up fonts
INFO10058 [foRender] (): [1]
Any help you can offer is much appreciated. Thanks in advance
---
Paul Smith
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RE: Difficulties embedding FOP by firing SAX events myself
Unfortunately I am using Java 1.3.1, javax.xml.* doesn't make an appearance
until 1.4 so I can't use TransformerFactory.
---
Paul Smith
> -Original Message-
> From: Beer, Christian [mailto:[EMAIL PROTECTED]]
> Sent: 15 November 2001 13:14
> To: '[EMAIL PROTECTED]'
> Subject: AW: Difficulties embedding FOP by firing SAX events myself
>
>
> I did it this way:
>
>
> // FO --> PDF
> driver.reset();
> driver.setOutputStream(pdf);
> driver.setRenderer(org.apache.fop.apps.Driver.RENDER_PDF);
>
> TransformerFactory tFactory = TransformerFactory.newInstance();
> if (tFactory.getFeature(SAXSource.FEATURE) &&
> tFactory.getFeature(SAXResult.FEATURE)) {
> SAXTransformerFactory saxTFactory =
> ((SAXTransformerFactory)tFactory);
>
> TransformerHandler th = saxTFactory.newTransformerHandler(new
> StreamSource(xsl));
>
> // Create SAXResult based on FOP Driver content handler
> which will accept
> // SAX events and build FOP tree
> SAXResult saxResult = new SAXResult(driver.getContentHandler());
>
> th.setResult(saxResult);
>
>
> Now you can use th as a ContentHandler and fire the events on it!
>
>
> pdf.close();
> }
>
>
> Christian
>
> -Ursprüngliche Nachricht-
> Von: Smith, Paul [mailto:[EMAIL PROTECTED]]
> Gesendet: Donnerstag, 15. November 2001 13:11
> An: Fop-Dev (E-mail)
> Cc: Smith, Paul
> Betreff: Difficulties embedding FOP by firing SAX events myself
>
>
> Hi,
>
> I am trying to embed FOP within my own Java application as
> described in
> http://xml.apache.org/fop/embedding.html, specifically the
> third method:
> "calling getContentHandler() and firing the SAX events
> yourself" and I am
> running into difficulties!
>
> I have a class called MyParser which fires the required events (it
> implements XMLReader). Its parse method that calls SAX events on
> ContentHandler and ignores the InputStream. If I do:
> (I have simplifed the code samples so their maybe a few typos)
>
> MyParser parser = new MyParser();
> XMLSerializer serializer = new XMLSerializer(new
> FileOutputStream("output.fo"), new OutputFormat(method, encoding,
> indenting));
> ContentHandler handler = serializer.asContentHandler();
> parser.setContentHandler(handler);
> parser.parse(new InputStream());
>
> Then I can produce a well formed XSL-FO file that validates
> against the DTD
> provided by N. Grigoriev from RenderX. Running fop on this
> file eg. "fop
> output.fo output.pdf", generates output.pdf successfully.
>
> HOWEVER, If I try and embed FOP by doing:
>
> Driver driver = new Driver();
> driver.setOutputStream(new FileOutputStream("output.pdf");
> driver.setInputSource(new InputSource());
> Logger logger =
> Hierarchy.getDefaultHierarchy().getLoggerFor("foRender");
> logger.setPriority(Priority.INFO);
> driver.setLogger(logger);
>
> MyParser parser = new MyParser();
> driver.render(parser, new InputSource());
>
> FOP generates output.pdf but when opened in Acrobat Reader I
> get "There was
> an error opening this document. Could not repair file."
> Closer inspection shows that the PDF has not been correctly
> generated at
> all. The first 9 lines look like:
>
> %PDF-1.3
> %ª«¬
> 4 0 obj
> << /Type /Info
> /Producer (null) >>
> endobj
> 5 0 obj
> << /Length 235 /Filter /FlateDecode
> >>
>
> where as the first 9 lines of the PDF generated by running
> FOP from the
> command line look like:
>
> %PDF-1.3
> %ª«¬
> 4 0 obj
> << /Type /Info
> /Producer (FOP 0.20.1) >>
> endobj
> 5 0 obj
> << /Length 296 /Filter [ /ASCII85Decode /FlateDecode ]
> >>
>
> During driver.render the logger prints out:
>
> INFO10058 [foRender] (): building formatting object tree
> DEBUG 10058 [fop ] (): setting up fonts
> INFO10058 [foRender] (): [1]
>
>
> Any help you can offer is much appreciated. Thanks in advance
>
> ---
> Paul Smith
>
>
> ***
> DISCLAIMER: The information contained in this email
> is confidential and is intended solely for the use of the
> named addressee. Access, copying or re-use of the
> information in it by any other person is not authorised.
>
>
>
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> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, email: [EMAIL PROTECTED]
>
> -
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, email: [EMAIL PROTECTED]
>
***
DISCLAIMER: The information contained in this email
is confidential and is intended solely for the use of the
named addressee. Access, copying or re-use of the
information in it by any other person is not authorised.
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