-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Chuck,
On 7/7/2010 3:48 PM, Caldarale, Charles R wrote: >> From: Christopher Schultz [mailto:ch...@christopherschultz.net] >> Subject: Re: How to call an external class from a webapp (i.e. - >> implement a plugin) >> >> Another option is to implement your own ClassLoader that scans a >> directory (such as /my/great/plugins) for JAR files and will load >> them alongside your webapp's classes. > > Tomcat already has a form of this capability: > org.apache.catalina.loader.VirtualWebappLoader > > If you declare this in the className attribute of a <Loader> element > nested inside the <Context> of interest, you can specify additional > directories to search for class references. It exists in all > supported Tomcat levels, but is only documented in Tomcat 7: > > http://tomcat.apache.org/tomcat-7.0-doc/config/loader.html#VirtualWebappLoader_Implementation Good to know. I didn't know it was available before TC 7.0 or without compiling it yourself... I did know that it existed, at least somewhere. I would tend to favor a ClassLoader that was explicitly used for only plug-in class loading. I thought you could set a SecurityManager on a ClassLoader, but my mind must be remembering something else, 'cause it certainly not in the documentation. :( - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkw04rEACgkQ9CaO5/Lv0PA39QCfVO+whzxqUmTyhJ0/z8dU8IEw 0/UAn3G3FA4sNIkX7m7Jd+A39ZB97+Qa =aS5e -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
