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From: "Caldarale, Charles R" <Chuck.Caldarale@unisys.com>
To: Tomcat Users List <users@tomcat.apache.org>
Date: Fri, 22 Nov 2013 16:07:01 -0600
Subject: RE: parallel deployment question
Thread-Topic: parallel deployment question
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> From: Leo Donahue - OETX [mailto:LeoDonahue@mail.maricopa.gov]=20
> Subject: parallel deployment question

> When I parallel deploy demo##001.war, in my servlet, when I use: =20
> servletContext.getContextPath();  it prints:  /demo

> Why doesn't it print /demo##001 ?

Because the context path is the same for all versions - that's the whole po=
int.  If the context path were different, the *client* would have to know t=
hat to reach the new version.

> If I do:  servletContext.getRealPath(getServletName());  it prints: =20
> C:\ApacheTomcat\apache-tomcat-7.0.42\webapps\demo##001\servlet-mapping-na=
me

The getRealPath() API is an abomination and should never be used.  Some ser=
vlet deployments are on platforms without file systems, which is why it's a=
llowed to return null.

> I wanted to grab the demo##001 name and stick in the corner of my web=20
> apps running in development, so users can see which version is deployed.

Your webapp should have a build or version number included as part of your =
build mechanism.  That number should not be associated with the deployment =
mechanism.

 - Chuck


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