FOP in tomcat servlet - path to fonts

[Ondra Nekola <on...@twin.jikos.cz>]

I'm using FOP in a home-written tomcat servlet.
The core of my java code looks like this:

InputStream in = 
getClass().getResourceAsStream("/component/resources/fopconfig.xml");
try {
	Options options = new Options(in);
			
} catch (Exception e1) {
	...
}
Driver driver = new Driver(new InputSource(new StringReader(myXmlString)), 
response.getOutputStream());
...
driver.setRenderer(Driver.RENDER_PDF);
		
try {
	driver.run();
} catch (Exception e) {
	...
}

I have a custom fopconfig.xml, because I need to use local fonts. This 
configuration is placed in the ..myApp\WEB-INF\classes\component\resources 
directory. In the same directory there is myFont.xml - xml metrics of my 
font.
The only change to the configuration is this:
<font 
metrics-file="file:///projekty/projekt/WEB-INF/classes/component/resources/timescs.xml" 
		kerning="yes" embed-file="C:\WINNT\Fonts\times.ttf">
	 <font-triplet name="TimesCS" style="normal" weight="normal" />
	 <font-triplet name="TimesCS" style="normal" weight="bold" />
 </font>

This configuration works ok. But it seems impossible to change 
filesystem paths to relative ones - the font metrics aren't found.

I use 1.4.2_04-b05, Apache Tomcat/5.0.24, Windows 2000 x86, and FOP 
0.20.5. I have found the same problem in the history of this conference 
several years ago - it was said to be bug of FOP. Is this still bug in FOP 
or do I do something wrong? 
 -- 
   S pozdravem
       Ondrej Nekola
       ondra@matfyz.cz
       http://www.matfyz.cz/ondra
       ICQ# 160692888

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Partial solution: FOP in tomcat servlet - path to fonts

[Ondra Nekola <on...@twin.jikos.cz>]

The problem seems to be caused mainly by the fact, that working direcory 
is set to some obscure directory ($CATALINA_HOME/bin/ in
my case) in the container, so relative paths are relative to the middle of 
nowhere and not to a well defined point inside the application.

OK, I have found a partial solution. I have changed code for the
org.apache.fop.tools.URLBuilder.buildURL(String s), so it can use a
special format of URL in form resource:/my/direcory/file. The method now
looks like this:

if (spec == null)
	throw new NullPointerException("spec must not be null");
	File f = new File(spec);
	if (f.exists()) {
		return f.toURL();
	}

if (spec.startsWith("resource:")) {
	URL result = URLBuilder.class.getResource(spec.replaceFirst("resource:", ""));
	if (result != null)
		return result;
	}

URL u1 = new URL(spec);
return u1;

This "solution" isn't perfect, but someone other can find it usefull for 
purpose of his own.

> I'm using FOP in a home-written tomcat servlet.
....
> 
> <font 
> metrics-file="file:///projekty/projekt/WEB-INF/classes/component/resources/timescs.xml" 
> 		kerning="yes" embed-file="C:\WINNT\Fonts\times.ttf">
> 	 <font-triplet name="TimesCS" style="normal" weight="normal" />
> 	 <font-triplet name="TimesCS" style="normal" weight="bold" />
>  </font>
> 
...
> This configuration works ok. But it seems impossible to change 
> filesystem paths to relative ones - the font metrics aren't found.
> 
-- 
   S pozdravem
       Ondrej Nekola
       ondra@matfyz.cz
       http://www.matfyz.cz/ondra
       ICQ# 160692888

PS: The font configuration now looks like this:

 <font metrics-file="resource:/module/resources/timescs.xml"  
	kerning="yes" embed-file="resource:/module/resources/times.ttf">
	 <font-triplet name="TimesCS" style="normal" weight="normal" />
	 <font-triplet name="TimesCS" style="normal" weight="bold" />
 </font> 

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Re: FOP in tomcat servlet - path to fonts

["J.Pietschmann" <j3...@yahoo.de>]

Ondra Nekola wrote:
> This configuration works ok. But it seems impossible to change 
> filesystem paths to relative ones - the font metrics aren't found.

There is a fontBaseURL for setting a base URL for
resolving relative paths to font metrics files.
I think it should be possible to create an Options
object, then set the fontBaseURL to whatever
"/" resolves in your servlet.

J.Pietschmann

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