System wide configuration file

I have a number of EJBs and plain Java Objects that all share a common set of 'configuration
properties' that the business would like to configure in run-time to affect how
the EJBs work.
Hence, I think that defining the same properties per EJB deployment descriptor
is overkill and wouldn't allow the business to change all EJBs at once.
What I'm really looking for is a system wide configuration XML file. Has anyone
got any ideas for how to make this a true singleton across the whole application
(2 app server clusters)??
Database is the obvious choice but seems overkill - the EJBs will use the configuration
information very frequently leading to lots of database reads. Has anyone got
a good 'file' equivalent that does some temporary caching instead?
Long shot I know, but thought that I'd ask.

OK thanks.
I'm starting to get twitchy about using read only entity beans to represent what
is afterall a set of name/value pairs. So I either:
1) Have an Entity bean instance per name/value pair. So I use findByPrimaryKey
(the name of the property)
2) Have an Entity bean that stores the whole collection of properties internally
and provides a 'getProperty' business method. But I feel like this is bending
the use of Entity beans though (what would findByPrimaryKey do?!)
May just go for a caching POJO instead.
Rich
"Dimitri I. Rakitine" <[email protected]> wrote:
Ah - these were added in WebLogic 7.0. Anyway, readonly beans with multicast
invalidation should be able to do what you want.
Rich <[email protected]> wrote:
Thanks. I understand read-only entity beans but not optimistic. Canyou point
me at a 6.1 document?
"Dimitri I. Rakitine" <[email protected]> wrote:
You can use entity beans which cache data between transactions (RO
or
optimistic), or
you can use cluster products like JavaGroups (http://sourceforge.net/projects/javagroups/)
or Coherence (http://www.tangosol.com/products-clustering.jsp).
Rich <[email protected]> wrote:
I have a number of EJBs and plain Java Objects that all share a commonset of 'configuration
properties' that the business would like to configure in run-time
to
affect how
the EJBs work.
Hence, I think that defining the same properties per EJB deploymentdescriptor
is overkill and wouldn't allow the business to change all EJBs at
once.
What I'm really looking for is a system wide configuration XML file.Has anyone
got any ideas for how to make this a true singleton across the wholeapplication
(2 app server clusters)??
Database is the obvious choice but seems overkill - the EJBs will
use
the configuration
information very frequently leading to lots of database reads. Hasanyone got
a good 'file' equivalent that does some temporary caching instead?
Long shot I know, but thought that I'd ask.--
Dimitri
Dimitri

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A Chairde,
I'm developing an application that could be deployed on multiple platforms. I'm looking for a location to store per-user configuration files in a OS-integrated way.
I use a utility class to determine the OS of the users machine. I know from experience that Windows NT5+ likes to store per-user settings/configurations in the %APPDATA% path (which is usually C:\Users\<username>\Appdata\Roaming\<vendor>\<software> etc.) I'm using a call to the environment labels to determine it's location.
I'm a linux user myself, so I'm aware that most UNIX based Operating Systems like to store personal configurations in hidden folders in the user's home directory (ex /home/<username>/.<application> etc.), Obviously, I'm using a call to the system property user.home to determine that location.
My Question is in relation to Mac OS and Mac OS X, where would it be a safe location to store per-user configurations? I know OS X is BSD/UNIX based so is it safe to assume to store them as a hidden subfolder of the user.home directory? What about Mac OS classic? Where are per-user settings stored, or is it like Windows 9x and NT4 and lacks proper multi-user setups (although NT4 is somewhat more prepared then 9x) ?
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Seán Mac Aodha
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I've used databases in the past to store local files but clients have sometimes run into trouble when the database daemon goes down or doesnt start-up normally because of a "improper" shutdown etc.
In my own implementation of "Settings Files" i have serialized hashtables marked with appropriate metadata stored to the users "application data", a backup or original copy of those settings in the common directory shared by my application framework and then in a networked enviroment, the Settings can be hosted on a database server, so the user can travel between client machines and keep their settings (and files) with them.
I have, with a bit of googling, come across the most obvious page i should have looked at in regards to Apple Mac OS X
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[solved] trying to figure out BASH configuration files

I am trying to figure out where to properly place commands in the many stated/existing BASH configuration files —reading the wiki and the man page I see there are what at first glance are too many files:
from: http://www.gnu.org/software/bash/manual … rtup-Files
invoked as an interactive login shell or with --login:
1. executes /etc/profile
2. executes-first-one-of-the-following: ~/.bash_profile
2. executes-first-one-of-the-following: ~/.bash_login
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/etc/profile (indirectly) sources /etc/bash.bashrc
/etc/skel/.bash_profile (which users are encouraged to copy to ~/.bash_profile) sources ~/.bashrc
which means that /etc/bash.bashrc and ~/.bashrc will be executed for all interactive shells whether they are login shells or not
It isn't clear to me what exactly means file#1 "indirectly sources" file#2: including ? append target file ? use file#2 instead of file#1 ?
It isn't clear either if ~/.bash_login and/or ~/.bash_logout are ignored (or not) in arch
so /etc/profile should be the (preferred) system-wide configuration file ?
so ~/.bash_profile should be the (preferred) user-specific configuration file ?
If so, does it means I should delete /etc/bash.bashrc (this is where I currently have system-wide commands) in favor of (ie: moving the content to) /etc/profile ?
Last edited by ivanborodin (2014-06-10 16:28:21)

First and foremost: thanks for the replies.
Ziusudra wrote:As the Wiki states ...
I am fully aware of what the wiki is stating —I even included the link in my first post. The problem is not that I am not aware of what it is stating, it is just I don't understand it and thus my post to begin with. More precisely; this highlighted line:
Note: /etc/bash.bashrc is non-standard, only some distributions like Arch Linux have this included because packagers have added a -DSYS_BASHRC="/etc/bash.bashrc" flag at compilation time, in order to have a system bashrc file.
which clearly states /etc/bach.bashrc is non-standard was the first hint to me that these files were legacy/going-to-be-deprecated/something-like-this (my assumption) in favor of newer (my assumption) /etc/profile and ~/.bash_profile
Maybe I am asking some obvious question (this is why I am asking it in the newbie corner) but please, have in mind that for someone coming from the Windows world some things/concepts are totally alien at first sight, for eg: in Windows you start Powershell and you have one (only one) place to set your configuration options and the like. Here I am offered with:
• 2 possible system-wide files: /etc/profile and /etc/bash.bashrc
• 2 possible user-specific files: ~/.bash_profile and ~/.bashrc
• 1 possible user-specific files: ~/.bash_login (and ~/.bash_logout)
... so I have (at least) 5 different places to execute commands upon login.
I was carefully reading all the files present on my current installation and now I understand what "indirectly sourced" means: including (if the file is present just insert it here)
I still don't understand what commands should be placed in which file; for eg: system-wide aliases should be placed in /etc/profile or in /etc/bash.bashrc ?
One more time, I am not a rocket-scientist nor I am a dummy, but the wiki just states file precedence without offering any details as best practices or something like that and just figure out: that for such a basic-thing I am getting different answers from two users (someone with 6000+ posts) ... either one: or the wiki is not clear or this thing is a little more complex than it seems at first sight ... just my thought.
Anyway, needless to say, thank you both for your time and patience.

Set system wide default mailto url

I'm trying to configure system wide settings in linux so any new user will apply for this settings.
I want register my zimbra server with mailto links.
I've found some information here:
http://www.zimbra.com/forums/general-questions/48547-how-control-mailto-selection-firefox.html
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Type=Application
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