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From Avi Deitcher <...@deitcher.net>
Subject Re: Shared code but different pages on different virtual hosts? WAS: RE: BOOBIES!
Date Fri, 21 Jul 2006 18:43:39 GMT
Ah, you are concerned about updates, a not-unreasonable concern.

Well, you could get *really* fancy with classloaders and checking
versions, then store the single jar, versionized, in /shared/lib, then
declare your version in web.xml as a context param or within JNDI for
that context.

Another option, probably easier, is to store the entire set in JNDI
(either internal or external), and lookup the classes dynamically from
JNDI. You would declare the JNDI context address in the web.xml, with
the version part of the path.

Harris, Thomas wrote:

>That means that for each change of the core code, I have to copy a jar
>to each of 40 web apps. That's what I've been trying to avoid... A
>maintenance nightmare. I want a single copy of each version of the core
>code (in a WAR file, or something) sitting on it's own, and each of the
>web apps refers to it. The web apps need to have their own JSP and tag
>file folders, since they are different sites.
>
>Tom
>
>-----Original Message-----
>From: Sharma, Siddharth [mailto:Siddharth.Sharma@Staples.com] 
>Sent: Friday, July 21, 2006 2:32 PM
>To: Tomcat Users List
>Subject: RE: Shared code but different pages on different virtual hosts?
>WAS: RE: BOOBIES!
>
>Jar up the common code into one or more libraries.
>Put them somewhere (possibly at the enterprise app level) and add each
>jar in each webapp's MANIFEST file.
>
>
>-----Original Message-----
>From: Harris, Thomas [mailto:Thomas.Harris@sourcemedia.com]
>Sent: Friday, July 21, 2006 2:19 PM
>To: Tomcat Users List
>Subject: Shared code but different pages on different virtual hosts?
>WAS:
>RE: BOOBIES!
>
>
>I wanted to have multiple web applications defined, all using the same
>core Java code, but each having different JSP and tag file folders. I
>tried following the example in the Tomcat Wiki at
>http://wiki.apache.org/tomcat/CreateVirtualHosts, but it assumes all the
>web apps have the same JSP and tag files, inside a WAR. I would like to
>package up all of the common code for all the sites in a WAR file, then
>point each separate web app to private JSP and tag file folders. What I
>was trying to determine is:
>
>1. Is it even possible?
>2. If so, how could it be done?
>
>As for the subject line, my previous email sat with the subject "Shared
>code but different pages on different virtual hosts?" for two weeks
>without a single response, and I'm still waiting so that my project can
>continue down it's path. No offense is meant, and it should be pretty
>obvious, I think, that I just wanted a little attention for my issue.
>Sorry for any offense it may have caused.
>
>Tom
>
>-----Original Message-----
>From: Mike Wannamaker [mailto:Mike.Wannamaker@KINGSTON.Hummingbird.com] 
>Sent: Friday, July 21, 2006 2:09 PM
>To: 'Tomcat Users List'
>Subject: RE: BOOBIES!
>
>I believe the subject was posted under different subject heading with no
>response and he's trying to get people looking at it, which I'm sure he
>will now.
>
>That said, some proper netiquette is appreciated in forums.
>
>I believe that I'm doing something similar, but using a different
>approach.
>I too want to have some common resources that all webapps use.  To do
>this I'm installing my own FileDirContext for web apps which I inject
>what we call aliases.
>
>IE:  /basefiles = /home/tomcat/basefiles
>
>Thus when someone in the webapp makes a request for
>/basefiles/common.css it looks it up in /home/tomcat/basefiles, which is
>outside of any web app context.
>
>Is this what you want to do?
>
>Mike Wannamaker
>
>-----Original Message-----
>From: Mead, Jennifer L - VSCM [mailto:Mead.Jennifer@vectorscm.com]
>Sent: July 21, 2006 2:01 PM
>To: Tomcat Users List
>Subject: RE: BOOBIES!
>
>Could this person (inject other undesirable word) please consider the
>fact that women are in the user's group also.  
>
>Jennifer 
>
>-----Original Message-----
>From: Harris, Thomas [mailto:Thomas.Harris@sourcemedia.com]
>Sent: Friday, July 21, 2006 10:59 AM
>To: users@tomcat.apache.org
>Subject: BOOBIES!
>
>
>I have been trying to determine how to configure Tomcat 5.5.17 to have a
>shared appBase on multiple webapps, but have a different set of JSPs for
>each web app. I've followed the Wiki's CreateVirtualHosts page to
>configure multiple webapps that use exactly the same WAR file. But, I
>would like to share the Java, but supply a different docBase for each
>site. Is this possible?
>
>Reference:
>http://wiki.apache.org/tomcat/CreateVirtualHosts
>
>Thanks!
>
>Tom Harris
>
>"This communication is intended solely for the addressee and is
>confidential and not for third party unauthorized distribution"
>
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>and not for third party unauthorized distribution"
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>"This communication is intended solely for the addressee and is confidential and not for
third party unauthorized distribution"
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>  
>

-- 
______________________________
Avi Deitcher
avi@deitcher.net



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