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Posted to users@tomcat.apache.org by Tomás Tormo <tt...@indenova.com> on 2007/09/03 13:09:21 UTC
Noob needs help with a webservice wich uses resources located in
a folder
Hi
I'm quite noob about tomcat topic. I'm using tomcat 5.028 in Ubuntu
6.10 and I would like to find an anwer to my question about web services
because i'm not able to solve it. I've written a java applicattion wich
uses a wrapper to communicate with an applicattion written in C, wich is
the "core" of my applicattion. Both the wrapper and the core are third
party applicattions, and because of that i don't have the source code, I
just have the API.
The third party sent me an example application wich uses the core. And,
as I could see in the script wich lauches the application, this folder
should be added to the classpath in order to be able to be located by
the wrapper applicattion. The documentation of the wrapper just says
that this folder has to exist with an specific name.
My problem is that my applicattion works fine launched from shell (it
founds the folder and uses the core perfectly) but it doesn't work as a
webservice. It is not able to find the resource folder (let's call it
"cfg"). As I can see in the catalina log, the application tries to load
the resources (via ClassLoader I guess) and then launches an exception
saying that is not able to find it. The client gets a HTTPErrorCode0.
I've tried a lot of ways to solve it: I tried to launch tomcat with the
classpath modified from the shell itself(making it point to the folder),
tried to export the classpath from startup.sh script, tried to export
the classpath from catalina.sh script, tried to modify the CATALINA_OPTS
variable, tried to put the folder in both lib and classes folders of the
webservice folder... but nothing worked.
Please.. could you help me to solve this problem? I think I've tried all
the options that came to my mind (except declaring a resource in
server.xml file, altought I don't know If this wrapper uses JNDI to
access to the resource..).I hope I explained myself well. As I think
you can see, I'm quite noob with tomcat, so please don't be so hard with
your answers... :'-p
Thank you very much!
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Re: Noob needs help with a webservice wich uses resources located
in a folder
Posted by Tomás Tormo <tt...@indenova.com>.
Hello
First of all thank you for your answer. The owner of tomcat it's my
user, but the problem is that my system doesn't have the group (or user)
tomcat. I tried to launch tomcat as root (just as a test) moving the
folder to the same place as the .class is, and later the same moving the
folder to webapps/service/WEB-INF/lib folder... but nothing worked...
any other idea? I'll keep on trying.
Thank you!!
PTS escribió:
> If my quick read of your problem is correct, (only works when run from
> command line) then I would venture to say that you may have a rights
> issue. Who owns the app? By default Tomcat starts from the scripts as
> owner tomcat where as from the command line it is running as you (root
> or some admin level). Try chown and chgrp the app to tomcat and see if
> that helps.
>
> No even moving it into the folder does not give Tomcat the rights to
> access it. You could also change the access rights but I would be
> careful there as letting anyone execute code is not a good thing, but
> chgrp to tomcat and group executable would work. Just make sure you
> understand what the implications of the changes you make are, even on
> ownership and group membership.
>
> Doug
>
>
> ----- Original Message ----- From: "Tomás Tormo" <tt...@indenova.com>
> To: <us...@tomcat.apache.org>
> Sent: Monday, September 03, 2007 7:09 AM
> Subject: Noob needs help with a webservice wich uses resources located
> in a folder
>
>
>> Hi
>>
>> I'm quite noob about tomcat topic. I'm using tomcat 5.028 in Ubuntu
>> 6.10 and I would like to find an anwer to my question about web
>> services because i'm not able to solve it. I've written a java
>> applicattion wich uses a wrapper to communicate with an applicattion
>> written in C, wich is the "core" of my applicattion. Both the wrapper
>> and the core are third party applicattions, and because of that i
>> don't have the source code, I just have the API.
>>
>> The third party sent me an example application wich uses the core.
>> And, as I could see in the script wich lauches the application, this
>> folder should be added to the classpath in order to be able to be
>> located by the wrapper applicattion. The documentation of the wrapper
>> just says that this folder has to exist with an specific name.
>>
>> My problem is that my applicattion works fine launched from shell (it
>> founds the folder and uses the core perfectly) but it doesn't work as
>> a webservice. It is not able to find the resource folder (let's call
>> it "cfg"). As I can see in the catalina log, the application tries to
>> load the resources (via ClassLoader I guess) and then launches an
>> exception saying that is not able to find it. The client gets a
>> HTTPErrorCode0.
>>
>> I've tried a lot of ways to solve it: I tried to launch tomcat with
>> the classpath modified from the shell itself(making it point to the
>> folder), tried to export the classpath from startup.sh script, tried
>> to export the classpath from catalina.sh script, tried to modify the
>> CATALINA_OPTS variable, tried to put the folder in both lib and
>> classes folders of the webservice folder... but nothing worked.
>>
>> Please.. could you help me to solve this problem? I think I've tried
>> all the options that came to my mind (except declaring a resource in
>> server.xml file, altought I don't know If this wrapper uses JNDI to
>> access to the resource..).I hope I explained myself well. As I think
>> you can see, I'm quite noob with tomcat, so please don't be so hard
>> with your answers... :'-p
>>
>> Thank you very much!
>>
>> ---------------------------------------------------------------------
>> To start a new topic, e-mail: users@tomcat.apache.org
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>>
>
>
> ---------------------------------------------------------------------
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>
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Re: Noob needs help with a webservice wich uses resources located in a folder
Posted by PTS <pa...@gmail.com>.
If my quick read of your problem is correct, (only works when run from
command line) then I would venture to say that you may have a rights issue.
Who owns the app? By default Tomcat starts from the scripts as owner tomcat
where as from the command line it is running as you (root or some admin
level). Try chown and chgrp the app to tomcat and see if that helps.
No even moving it into the folder does not give Tomcat the rights to access
it. You could also change the access rights but I would be careful there as
letting anyone execute code is not a good thing, but chgrp to tomcat and
group executable would work. Just make sure you understand what the
implications of the changes you make are, even on ownership and group
membership.
Doug
----- Original Message -----
From: "Tomás Tormo" <tt...@indenova.com>
To: <us...@tomcat.apache.org>
Sent: Monday, September 03, 2007 7:09 AM
Subject: Noob needs help with a webservice wich uses resources located in a
folder
> Hi
>
> I'm quite noob about tomcat topic. I'm using tomcat 5.028 in Ubuntu 6.10
> and I would like to find an anwer to my question about web services
> because i'm not able to solve it. I've written a java applicattion wich
> uses a wrapper to communicate with an applicattion written in C, wich is
> the "core" of my applicattion. Both the wrapper and the core are third
> party applicattions, and because of that i don't have the source code, I
> just have the API.
>
> The third party sent me an example application wich uses the core. And, as
> I could see in the script wich lauches the application, this folder should
> be added to the classpath in order to be able to be located by the wrapper
> applicattion. The documentation of the wrapper just says that this folder
> has to exist with an specific name.
>
> My problem is that my applicattion works fine launched from shell (it
> founds the folder and uses the core perfectly) but it doesn't work as a
> webservice. It is not able to find the resource folder (let's call it
> "cfg"). As I can see in the catalina log, the application tries to load
> the resources (via ClassLoader I guess) and then launches an exception
> saying that is not able to find it. The client gets a HTTPErrorCode0.
>
> I've tried a lot of ways to solve it: I tried to launch tomcat with the
> classpath modified from the shell itself(making it point to the folder),
> tried to export the classpath from startup.sh script, tried to export the
> classpath from catalina.sh script, tried to modify the CATALINA_OPTS
> variable, tried to put the folder in both lib and classes folders of the
> webservice folder... but nothing worked.
>
> Please.. could you help me to solve this problem? I think I've tried all
> the options that came to my mind (except declaring a resource in
> server.xml file, altought I don't know If this wrapper uses JNDI to access
> to the resource..).I hope I explained myself well. As I think you can
> see, I'm quite noob with tomcat, so please don't be so hard with your
> answers... :'-p
>
> Thank you very much!
>
> ---------------------------------------------------------------------
> To start a new topic, e-mail: users@tomcat.apache.org
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
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