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
%����
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
%����
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:
INFO 10058 [foRender] (): building formatting object tree
DEBUG 10058 [fop ] (): setting up fonts
INFO 10058 [foRender] (): [1]
Any help you can offer is much appreciated. Thanks in advance
---
Paul Smith
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