It would be nice if we could override the default settings provided within a
WAR file's web.xml via some upgraded version of the /manager webapp.
This would allow a WAR file to remain a "black box", but still allow an
administrator deploying the WAR file to override certain parameters, such as
file locations (as is the case in earlier postings in this thread) that vary
from system to system. As such, it avoids uncompressing WAR files and
meddling with settings and doing away with any signed WAR files (if there
isn't such a thing as a signed WAR file, it's a bit of a shame!).
Ideally, properties in web.xml could have an attribute such as
final="true|false" to indicate whether the init-param may be overridden in
such a way. But this probably requires updating the servlet spec...
-Chris
----- Original Message -----
From: "Craig R. McClanahan" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, September 25, 2001 3:52 AM
Subject: RE: Won't read existing file
>
>
> On Mon, 24 Sep 2001, Dennis Jay Dole wrote:
>
> > Date: Mon, 24 Sep 2001 21:31:21 -0400
> > From: Dennis Jay Dole <[EMAIL PROTECTED]>
> > Reply-To: [EMAIL PROTECTED]
> > To: [EMAIL PROTECTED]
> > Subject: RE: Won't read existing file
> >
> > Yes, good points,...and yet I still have no solution.
> > Any other ideas?
> >
>
> What's wrong with ServletContext.getResourceAsStream(), or configuring an
> absolute path to the directory for your config files? Both suggestions
> were explained in my response (quoted below).
>
> Craig
>
>
> > -----Original Message-----
> > From: Vel Periasamy [mailto:[EMAIL PROTECTED]]
> > Sent: Monday, September 24, 2001 6:28 PM
> > To: '[EMAIL PROTECTED]'
> > Subject: RE: Won't read existing file
> >
> >
> > Good points. Thanks Craig.
> > -Velmurugan Periasamy.
> > AEGIS.Net
> > http://www.aegis.net
> >
> >
> > -----Original Message-----
> > From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]]
> > Sent: Monday, September 24, 2001 6:27 PM
> > To: '[EMAIL PROTECTED]'
> > Subject: RE: Won't read existing file
> >
> >
> >
> >
> > On Mon, 24 Sep 2001, Vel Periasamy wrote:
> >
> > > Date: Mon, 24 Sep 2001 17:24:50 -0400
> > > From: Vel Periasamy <[EMAIL PROTECTED]>
> > > Reply-To: [EMAIL PROTECTED]
> > > To: "'[EMAIL PROTECTED]'"
<[EMAIL PROTECTED]>
> > > Subject: RE: Won't read existing file
> > >
> > > Try putting the file into TOMCAT_HOME\bin directory.
> > >
> >
> > This is *not* a portable solution, because it depends on the assumption
> > that the current working directory is set here. That's not true for all
> > servers (or even all versions of Tomcat).
> >
> > > BTW, you can create a separate folder to hold the data files and the
exact
> > > location of this folder can be specified in a properties file. Your
> > servlet
> > > should read the properties file to get the exact location of the data
> > file.
> > > This will give you more flexibility if you move the application
around.
> > >
> >
> > For read-only access to things in a portable manner, you should use
> > ServletContext.getResource() or ServletContext.getResourceAsStream().
> > This works, for example, even when your application is run directly from
a
> > WAR file and there is no such thing as a "real" file for that resource.
> >
> > For read-write access, the best thing to do is pass the path to a
> > configuration directory as a servlet init parameter (or a servlet
context
> > init parameter, if it is global), and use that to construct absolute
paths
> > to the required files.
> >
> > > Hope this helps.
> > > -Velmurugan Periasamy.
> > > AEGIS.Net
> > > http://www.aegis.net
> > >
> >
> > Craig McClanahan
> >
> >
> > >
> > >
> > > -----Original Message-----
> > > From: Dennis Jay Dole [mailto:[EMAIL PROTECTED]]
> > > Sent: Monday, September 24, 2001 5:24 PM
> > > To: [EMAIL PROTECTED]
> > > Subject: Won't read existing file
> > >
> > >
> > > Hi I have a problem...
> > > I have a servlet which reads opens a serialized file
> > > "File f = new File("Database.scat");"
> > > then I do a lot of things when "f.exists()",
> > > but since I upgraded my web server to Tomcat (from Sun's old java
> > > web-server)
> > > it f.exists() returns false even though I know the file is placed in
> > > the
> > > right
> > > directory Tomcat's root directory, and named correctly.
> > >
> > > Does anyone know why this Tomcat isn't allowing my servlet to open
this
> > > file? Does it have somthing to do with permissions, or security
> > settings?...
> > > If so, how do I go about giving permission to my servlet to see the
> > database
> > > file?
> > >
> > > Please help!!
> > >
> > > Dennis Jay Dole
> > >
> > > [EMAIL PROTECTED]
> > >
> >
> >
>
