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Subject: RE: JNDI / pooling
Date: Fri, 9 Jul 2004 08:13:04 -0600
Message-ID: <F652CC948658F645A9BAA35EA5A4FC860F7B56@eagle.ada.net.gov>
Thread-Topic: JNDI / pooling
Thread-Index: AcRlsIGnyP3PMreNTQOpnEoM5oYMGAADXELw
From: "Randall Svancara" <rsvancara@adaweb.net>
To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>

Most ftp connections time out, so you would have to have an =
auto-reconnect feature right?  This sounds like a kewl idea.   =20

-----Original Message-----
From: Ryan Lissack [mailto:rlissack@buildonline.com]
Sent: Friday, July 09, 2004 6:30 AM
To: 'Tomcat Users List'
Subject: RE: JNDI / pooling


http://jakarta.apache.org/tomcat/tomcat-5.0-doc/jndi-resources-howto.html=


See the 'Adding Custom Resource Factories' section.

Ryan.

-----Original Message-----
From: Viorel Dragomir [mailto:bc@vio.ro]
Sent: 09 July 2004 13:12
To: Tomcat Users List
Subject: JNDI / pooling


Hi,

I can't describe exactly the problem because I'm not familiar with all =
the
terms... But the big picture is that I want to create a pool of ftp
connections to work like a database connection and I want to get the
connection from JNDI.


So far I extended BaseKeyedPoolableObjectFactory and =
StackKeyedObjectPool
and it works fine like this:

        FTPConnectionPool pool =3D new FTPConnectionPool();
        String key =3D "key";
        try{
        FTPClient ftp =3D pool.borrowClient(key);
        if( ftp.sendNoOp() ){
            System.out.println("OK");
        }else{
            System.out.println("NOPE");
        }
       =20
        pool.returnClient( key, ftp );
        }catch(Exception ex){
            ex.printStackTrace();
        }

But I want to make it work from "JNDI" almost like a datasource
            InitialContext ctx =3D new InitialContext();
            DataSource ds =3D (DataSource)
ctx.lookup("java:comp/env/jdbc/backup");

Anyway I am completely lost if it can be done or not.
So far I get an exception when I try to start Tomcat:

GlobalResourcesLifecycleListener: Exception processing Global JNDI =
Resources
javax.naming.NamingException: Could not create resource factory =
instance,
null
        at
org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFacto=
ry.
java:146)
        at
javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:301)
        at =
org.apache.naming.NamingContext.lookup(NamingContext.java:834)
        at =
org.apache.naming.NamingContext.lookup(NamingContext.java:194)
=20

regards,
viorel

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