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From "Tim Lucia" <timlu...@yahoo.com>
Subject RE: Properties file problem
Date Tue, 25 Apr 2006 16:22:21 GMT
Hardwiring a directory inside a war's web.xml will likely get you into
portability problems.  If you must do this, at least make it a JNDI lookup
so that the JNDI provider (Tomcat, other app server) can manage this
resource -- that is, the person deploying the app has some flexibility in
where to put the file(s).

Tim
 

-----Original Message-----
From: VIKASS NAGPAL [mailto:vikassn@yahoo.com] 
Sent: Tuesday, April 25, 2006 12:07 PM
To: Tomcat Users List; hadrabap@bluetone.cz
Subject: Re: Properties file problem

Hi All,

I think the problem can be resolved by creating the temporary directory,
anyother directory which location can be "hard-wired as initial parameter in
the web.xml file". But where in my application's web.xml I have to
"hard-wire" this directory. Can you please let me exactly where should I
"hard-wire" this directory so that my application can dynamically create the
"properties file" inside this directory.

Thanks,
Vikas Nagpal.


--- Hadraba Petr <hadrabap@bluetone.cz> wrote:

> Hi Vikas,
> 
> some details:
> 
> I see you're correctly using the
> getClass.getResource() (I'm using
> getServletContext().getResourceAsStream() or 
> getServletContext().getResource()). But, Why are you creating 
> resources? You see all the war content in the host OS filesystem 
> because of unpackWars="true". This is because of performance (I hope) 
> and if you set this to "false", Tomcat will *read* resources (also 
> classes and anything else) from the WAR file directly! You are mixing 
> two things together: one are resources (they are using URL instead of
> File) and on the other side Host OS FileSystem (the File objects).
> 
> So, you store database connection parameters in the property file. I 
> see two options to solve your problem:
> 1. Move the property file outside the resources if you want dynamic 
> creation. For example: temporary directory, any other directory which 
> location can be "hard-wired as initial parameter in the web.xml file".
> 2. Use Tomcat's database pooler. You give more performence (if you're 
> not using "your own" database connection pooler)!
> 
> 
> Please explain what you want to do, what's your goal...
> 
> Have a nice day
> 
> PETR
> 
> 
> On 4/21/06, VIKASS NAGPAL <vikassn@yahoo.com> wrote:
> > Hi All,
> >
> > I have a problem here. I have Pproperties file.
> > It has the following code:
> >
> > File f = new File(propertyFolder);
> >
> > if (!f.exists()) f.mkdir();
> >
> > f = new File(propertyFolder +
> > System.getProperty("file.separator") + propertyFileName);
> >
> > if (!f.exists())
> > {
> > String s = ((this.getClass().getResource("/" + 
> > propertyFileName)).toString());
> >
> > File pf = new File(s.substring(6));
> >
> > This code creates a folder with the name propertiespaydir and file 
> > with the name pdr.properties. In order to connect to the
> database i
> > have to read the Servername, Database name,
> Username
> > and password from this file or creates a file with
> the
> > name pdr.properties file. But If i rename this pdr.properties file 
> > to something else then my code does not create the file with the 
> > name
> pdr.properties.
> > So I cannot connect to the database. So anyone of
> you
> > knows what change should i make into my existing
> code
> > in order for me to create the file with the name pdr.properties in 
> > case it does not exist. I would really be thankful for any help in 
> > this matter.
> >
> > Thanks,
> > With regards,
> > Vikas Nagpal.
> >
> >
> > __________________________________________________
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> >
> >
>
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> >
> 
> 
> --
> Petr Hadraba
> graphic artist and software designer
> http://people.hadraba-soft.com/~petr
> hadrabap AT bluetone DOT cz
> 


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