Responses below. -----Original Message----- From: J.Pietschmann [mailto:[EMAIL PROTECTED]] Sent: Tuesday, October 15, 2002 3:05 PM To: [EMAIL PROTECTED] Subject: Re: fonts
>>Victor Mote wrote: > OK, here is a related question that does not appear to be an FAQ (per my > review of FOP, Batik, and Cocoon lists). If I try: > ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); > > in a headless environment, I get a runtime error that halts the JVM. This is interesting, but you'll probably get more and better answers on comp.lang.java or a more specialized Java forum.< I'm curious. What's the error and stacktrace for that error? Have you tried catching things of type Throwable? > There > does not seem to be a way to catch the error and skip the offending code > (which is all I really need to do). It looks like 1.4 will throw a > HeadlessException, and also gives a GraphicsEnvironment.isHeadless() method, > both of which are helpful. However, in 1.3, I don't see a clean way to > detect this -- I could probably do something klunky like looking at the > $TERM variable & trying to figure it out from there. I'd go for the DISPLAY environment variable: if it's not set, you are most probably running headless. There is a slight possibility you are on a system which would connect to a local X server anyway, so just to be really, really sure open a socket to localhost:6000, and perhaps emulate XOpenDisplay if there is something listening there.<< Sun has looked on environment variables with derision, and the 1.3 JDK deprecates the mechanisms by which you can extract them in Java. IIRC, the getenv mechanism was actually de-implmented in JDK 1.4. You might face similar trouble in 1.3. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
