changing tomcat configuration on the fly
Hello, I am interested in changing the server.xml and web.xml files through servlets and then reload them. So for example I can add JNDI entries in server.xml without the nedd to stop/start tomcat again. Something very similar is done in the admin app ( shipped with tomcat ). Does anybody have a code example or some tips on how to do it ?? Thanks, Adi - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: changing tomcat configuration on the fly
you can find it in the Tomcat source. Just look in the source for the admin app. - Original Message - From: Adi Katz To: [EMAIL PROTECTED] Sent: Wednesday, June 04, 2003 4:08 PM Subject: changing tomcat configuration on the fly Hello, I am interested in changing the server.xml and web.xml files through servlets and then reload them. So for example I can add JNDI entries in server.xml without the nedd to stop/start tomcat again. Something very similar is done in the admin app ( shipped with tomcat ). Does anybody have a code example or some tips on how to do it ?? Thanks, Adi - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: changing tomcat configuration on the fly
There is no way to change web.xml on the fly. Except by - - putting a new web.xml in its place - stop the app - start the app As for changes to server.xml. This can be done via JMX. See the code to the admin app on how make changes. -Tim Adi Katz wrote: Hello, I am interested in changing the server.xml and web.xml files through servlets and then reload them. So for example I can add JNDI entries in server.xml without the nedd to stop/start tomcat again. Something very similar is done in the admin app ( shipped with tomcat ). Does anybody have a code example or some tips on how to do it ?? Thanks, Adi - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: changing tomcat configuration on the fly
I wonder whether you actually want this approach at all. Depending on why you want to modify JNDI entries, and whether this is for the entire server or just a specific web-app ... If I need to change my JNDI entries (generally values and additions during development), I modify the context.xml file for the app (in the META-INF directory) and redeploy the app. This seems to automagically modify the server.xml file for me, and I can keep the changes in my web app CVS. Perhaps your needs are more complex ... G'luck tim Tim Funk wrote: There is no way to change web.xml on the fly. Except by - - putting a new web.xml in its place - stop the app - start the app As for changes to server.xml. This can be done via JMX. See the code to the admin app on how make changes. -Tim Adi Katz wrote: Hello, I am interested in changing the server.xml and web.xml files through servlets and then reload them. So for example I can add JNDI entries in server.xml without the nedd to stop/start tomcat again. Something very similar is done in the admin app ( shipped with tomcat ). Does anybody have a code example or some tips on how to do it ?? Thanks, Adi - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: changing tomcat configuration on the fly
Hello Tim, I have only one app and users should be able to register a database with the app. so: 1) I dont know in advance what kind of data base it will be 2) data supplied by the end user regarding the database / url etc. should be written to the right files ( server.xml ). 3) In order for tomcat to update according to the changes made... the all thing need to restart and I cant relay on somebodey going to the server and stop-start tomcat. Would like to hear any ideas /examples. Adi -Original Message- From: Tim Shaw [mailto:[EMAIL PROTECTED] Sent: 04 June 2003 18:48 To: Tomcat Users List Subject: Re: changing tomcat configuration on the fly I wonder whether you actually want this approach at all. Depending on why you want to modify JNDI entries, and whether this is for the entire server or just a specific web-app ... If I need to change my JNDI entries (generally values and additions during development), I modify the context.xml file for the app (in the META-INF directory) and redeploy the app. This seems to automagically modify the server.xml file for me, and I can keep the changes in my web app CVS. Perhaps your needs are more complex ... G'luck tim Tim Funk wrote: > There is no way to change web.xml on the fly. Except by - > - putting a new web.xml in its place > - stop the app > - start the app > > As for changes to server.xml. This can be done via JMX. See the code to > the admin app on how make changes. > > -Tim > > Adi Katz wrote: > >> Hello, >> >> I am interested in changing the server.xml and web.xml files through >> servlets and then reload them. >> So for example I can add JNDI entries in server.xml without the nedd to >> stop/start tomcat again. >> Something very similar is done in the admin app ( shipped with tomcat ). >> Does anybody have a code example or some tips on how to do it ?? >> >> Thanks, >> Adi >> > > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: changing tomcat configuration on the fly
Depending on the functionality of your app, what you need to do with these databases, and your comfort level in coding this stuff, why not role your own? It may be possible to tweak Tomcat to do something like this, but in odd-ball situations like this one, I tend to trust my own ability to code something rather than relying on someone else's app to do something it wasn't designed to do. Others may disagree on that point, but it's worth considering. You're gonna be coding/configuring with Tomcat-specific stuff here, so you're opening up to future compatibility problems (with other Tomcat versions). You may even be able to use some of Tomcat's codebase to help with the db organization. ... Some thoughts wafting through the virtual air ... justin At 11:13 AM 6/4/2003, you wrote: Hello Tim, I have only one app and users should be able to register a database with the app. so: 1) I dont know in advance what kind of data base it will be 2) data supplied by the end user regarding the database / url etc. should be written to the right files ( server.xml ). 3) In order for tomcat to update according to the changes made... the all thing need to restart and I cant relay on somebodey going to the server and stop-start tomcat. Would like to hear any ideas /examples. Adi -Original Message- From: Tim Shaw [mailto:[EMAIL PROTECTED] Sent: 04 June 2003 18:48 To: Tomcat Users List Subject: Re: changing tomcat configuration on the fly I wonder whether you actually want this approach at all. Depending on why you want to modify JNDI entries, and whether this is for the entire server or just a specific web-app ... If I need to change my JNDI entries (generally values and additions during development), I modify the context.xml file for the app (in the META-INF directory) and redeploy the app. This seems to automagically modify the server.xml file for me, and I can keep the changes in my web app CVS. Perhaps your needs are more complex ... G'luck tim Tim Funk wrote: > There is no way to change web.xml on the fly. Except by - > - putting a new web.xml in its place > - stop the app > - start the app > > As for changes to server.xml. This can be done via JMX. See the code to > the admin app on how make changes. > > -Tim > > Adi Katz wrote: > >> Hello, >> >> I am interested in changing the server.xml and web.xml files through >> servlets and then reload them. >> So for example I can add JNDI entries in server.xml without the nedd to >> stop/start tomcat again. >> Something very similar is done in the admin app ( shipped with tomcat ). >> Does anybody have a code example or some tips on how to do it ?? >> >> Thanks, >> Adi >> > > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Justin Ruthenbeck Software Engineer, NextEngine Inc. justinr - AT - nextengine DOT com Confidential See http://www.nextengine.com/confidentiality.php - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: changing tomcat configuration on the fly
If it's a 'single-shot' user accessing a DB known to them (and for many you could configure) I'd probably take request parameters and set up a DataSource in-session. This could be made 'longer lasting' by loading/storing the data entered - but users would still have to select the configuration they want If it's an admin task for a single DB (and not frequent or when users are working!) I'd probably script an update/redeploy of the app itself. Others may not ... ;-) tim Adi Katz wrote: Hello Tim, I have only one app and users should be able to register a database with the app. so: 1) I dont know in advance what kind of data base it will be 2) data supplied by the end user regarding the database / url etc. should be written to the right files ( server.xml ). 3) In order for tomcat to update according to the changes made... the all thing need to restart and I cant relay on somebodey going to the server and stop-start tomcat. Would like to hear any ideas /examples. Adi -Original Message- From: Tim Shaw [mailto:[EMAIL PROTECTED] Sent: 04 June 2003 18:48 To: Tomcat Users List Subject: Re: changing tomcat configuration on the fly I wonder whether you actually want this approach at all. Depending on why you want to modify JNDI entries, and whether this is for the entire server or just a specific web-app ... If I need to change my JNDI entries (generally values and additions during development), I modify the context.xml file for the app (in the META-INF directory) and redeploy the app. This seems to automagically modify the server.xml file for me, and I can keep the changes in my web app CVS. Perhaps your needs are more complex ... G'luck tim Tim Funk wrote: There is no way to change web.xml on the fly. Except by - - putting a new web.xml in its place - stop the app - start the app As for changes to server.xml. This can be done via JMX. See the code to the admin app on how make changes. -Tim Adi Katz wrote: Hello, I am interested in changing the server.xml and web.xml files through servlets and then reload them. So for example I can add JNDI entries in server.xml without the nedd to stop/start tomcat again. Something very similar is done in the admin app ( shipped with tomcat ). Does anybody have a code example or some tips on how to do it ?? Thanks, Adi - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
