On Oct 23, 2005, at 11:32 PM, Barry van Someren wrote:
David,
My experience with persistance in webapps has been with using
databases.
I recently ran into a JSP based Wiki that uses flat files (most likely
in the working directory) to persist data.
Now I remember that back at my old company we used Tomcat for a
project and it would let you add files to the working directory that
would persist between runs.
When you used JBoss, it wouldn't (and I reasoned that it's fair from a
security point of view)
So I'm kind of asking how Geronimo handles this and what is the best
way of persisting if you insist on flat files.
Well, I would avoid having your application save anything in its own
unpacked directory at all costs: this is just asking for trouble, for
instance, when you deploy the next upgrade :-).
I recommend creating a subdirectory under var (e.g. var/myAppData).
Unfortunately AFAIK finding this at runtime is a bit involved.
private static final ObjectName SERVER_INFO =
ObjectName.getInstance("geronimo.server:
J2EEApplication=null,J2EEModule=org/apache/geronimo/
System,J2EEServer=geronimo,j2eeType=GBean,name=ServerInfo");
Kernel kernel = KernelRegistry.getSingleKernel();
File dir = (FIle)kernel.invoke(SERVER_INFO, "resolve", new Object[]
{"var/myAppData"}, new String[] {String.class.getName()});
There might be an easier way to get this but I don't know what it is.
It would be nice to provide a better way :-) Perhaps we could write a
URLHandler that would resolve for us? serverinfo://var/myAppData Any
other ideas?
thanks
david jencks
Greetings,
Barry
On 10/24/05, David Jencks <[EMAIL PROTECTED]> wrote:
On Oct 23, 2005, at 1:16 PM, Barry van Someren wrote:
Hi there,
The deploy instructions show how to deploy WAR's only deals with
packed WAR's.
Can you also deploy exploded WAR's in Geronimo (just like you can do
with Tomcat)?
I think so. Note that any war or ear with a war inside will get
unpacked into the config-store. I think if you modify jsps or static
content there the changes will get picked up.
We've had a plan for a while to make it possible to deploy a war so
that jsps and static content are picked up from the original source
location rather than a deployed copy. This would let you work on your
jsps in your IDE in the location your SCM system knows about yet see
the changes immediately. I'm not sure if anyone has had the time to
expose this functionality yet. I would think this would be more
useful
than an "unpacked war" deploy feature.
And what about creating flat files? (writing in the deployed/work
directory)
Could you explain what you have in mind here in more detail?
I'm trying out some open source projects to see how well they work
under Geronimo (to add to the samples matrix)
Great!
I'm only learning here, sorry ;-)
Well, hopefully I'm learning here too :-)
thanks
david jencks
Greets,
Barry
