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Posted to dev@tomcat.apache.org by "T. Park" <tp...@borland.com> on 2001/03/23 19:39:03 UTC
Catalina vs.preServletInit et. al.
Hello,
I'm a newbie to the Catalina code line and need some guidance (lots actually)...
I have a custom interceptor that works really well with Tomcat 3.x that does
some special setup work
in the preServletInit/postServletInit, preService/postService and
preServletDestroy/postServletDestroy methods of
the special RequestInterceptor.
My problem is determining functional equivalents to these in Catalina.
Can anyone give me any pointers - I sort of lost my way in the source code and
documentation
(primarily due to existing references to 'interceptors' in both comments and
docs.)
Is there still a way to do some pre/post processing for each corresponding
servlet call (init,destroy and service).
I looked at VavleBase and couldn't see any direct comparison.
-Thom
Re: trouble compiling mod_jk.so
Posted by Brian P Millett <bp...@ec-group.com>.
Pilho Kim wrote:
> Hi,
>
> Retry with Apache 1.3.14 or 1.3.17
>
> On Fri, 23 Mar 2001, Jim Yiu wrote:
>
> >
> > Hi,
> > I am trying to compile the Tomcat-Apache plugin for Solaris and am unsuccessful,, I
> > am trying
> > to follow the mod_jk faq but it does not explain what to do when there are compile
> > errors.
>
[snip]
> > apxs:Break: Command failed with rc=16711680
> >
> >
> > I am running the apxs script from within the apache directory [path to
> > apache]/apache/bin and I have Perl 5.004_04 installed, i am using
> > SunOS 5.7 with a SPARC station 20 ..
> >
> > Could someone point out the problem ? Any help is appreciated.
The real problem here is that the apache supplied apxs is not correct. You need to edit it and fix
the
$CFG_CFLAGS_SHLIB, $CFG_LD_SHLIB & $CFG_LDFLAGS_SHLIB variables as follows:
vlad: gdiff -Nu0 /var/tmp/bpm/apxs.~1~ /opt/apache/bin/apxs
--- /var/tmp/bpm/apxs.~1~ Fri Mar 16 09:29:33 2001
+++ /opt/apache/bin/apxs Fri Mar 16 15:44:42 2001
@@ -77,3 +77,3 @@
-my $CFG_CFLAGS_SHLIB = q(); # substituted via Makefile.tmpl
-my $CFG_LD_SHLIB = q(); # substituted via Makefile.tmpl
-my $CFG_LDFLAGS_SHLIB = q(); # substituted via Makefile.tmpl
+my $CFG_CFLAGS_SHLIB = q(-fPIC -DSHARED_MODULE); # substituted via Makefile.tmpl
+my $CFG_LD_SHLIB = q(ld); # substituted via Makefile.tmpl
+my $CFG_LDFLAGS_SHLIB = q(-G); # substituted via Makefile.tmpl
--
Brian Millett
Enterprise Consulting Group "Shifts in paradigms
(314) 205-9030 often cause nose bleeds."
bpm@ec-group.com Greg Glenn
Re: trouble compiling mod_jk.so
Posted by Pilho Kim <ph...@math.soongsil.ac.kr>.
Hi,
Retry with Apache 1.3.14 or 1.3.17
Regards,
Kim
On Fri, 23 Mar 2001, Jim Yiu wrote:
>
> Hi,
> I am trying to compile the Tomcat-Apache plugin for Solaris and am unsuccessful,, I
> am trying
> to follow the mod_jk faq but it does not explain what to do when there are compile
> errors.
> For Solaris, there is no binary available and we have to create our own shared
> object.
>
> Here is the problem:
> after running
> apxs -o mod_jk.so -DSOLARIS -I../jk -I/usr/java/include -I/usr/java/include/solaris
> -lposix4 -c *.c ../jk/*.c
>
> the object files seem to compile fine, and they exist in the directory after
> compiling, but there seems to be a link error and the ".so" file
> is never created..
>
> here is the error..
>
> [top snipped]
> gcc -DSOLARIS2=251 -DUSE_EXPAT -I../lib/expat-lite -DNO_DL_NEEDED
> -I/d/d1/apache_1.3.12/include -I../jk -I/usr/java/include -I/usr/java/include/solaris
> -DSOLARIS -c ../jk/jk_util.c
> gcc -DSOLARIS2=251 -DUSE_EXPAT -I../lib/expat-lite -DNO_DL_NEEDED
> -I/d/d1/apache_1.3.12/include -I../jk -I/usr/java/include -I/usr/java/include/solaris
> -DSOLARIS -c ../jk/jk_worker.c
> -o mod_jk.so jk_worker.o jk_util.o jk_uri_worker_map.o jk_sockbuf.o jk_pool.o
> jk_nwmain.o jk_msg_buff.o jk_map.o jk_lb_worker.o jk_jni_worker.o jk_connect.o
> jk_ajp13_worker.o jk_ajp13.o jk_ajp12_worker.o mod_jk.o
> apxs:Break: Command failed with rc=16711680
>
>
> I am running the apxs script from within the apache directory [path to
> apache]/apache/bin and I have Perl 5.004_04 installed, i am using
> SunOS 5.7 with a SPARC station 20 ..
>
> Could someone point out the problem ? Any help is appreciated.
>
> Jim
>
>
>
>
trouble compiling mod_jk.so
Posted by Jim Yiu <Ji...@msdw.com>.
Hi,
I am trying to compile the Tomcat-Apache plugin for Solaris and am unsuccessful,, I
am trying
to follow the mod_jk faq but it does not explain what to do when there are compile
errors.
For Solaris, there is no binary available and we have to create our own shared
object.
Here is the problem:
after running
apxs -o mod_jk.so -DSOLARIS -I../jk -I/usr/java/include -I/usr/java/include/solaris
-lposix4 -c *.c ../jk/*.c
the object files seem to compile fine, and they exist in the directory after
compiling, but there seems to be a link error and the ".so" file
is never created..
here is the error..
[top snipped]
gcc -DSOLARIS2=251 -DUSE_EXPAT -I../lib/expat-lite -DNO_DL_NEEDED
-I/d/d1/apache_1.3.12/include -I../jk -I/usr/java/include -I/usr/java/include/solaris
-DSOLARIS -c ../jk/jk_util.c
gcc -DSOLARIS2=251 -DUSE_EXPAT -I../lib/expat-lite -DNO_DL_NEEDED
-I/d/d1/apache_1.3.12/include -I../jk -I/usr/java/include -I/usr/java/include/solaris
-DSOLARIS -c ../jk/jk_worker.c
-o mod_jk.so jk_worker.o jk_util.o jk_uri_worker_map.o jk_sockbuf.o jk_pool.o
jk_nwmain.o jk_msg_buff.o jk_map.o jk_lb_worker.o jk_jni_worker.o jk_connect.o
jk_ajp13_worker.o jk_ajp13.o jk_ajp12_worker.o mod_jk.o
apxs:Break: Command failed with rc=16711680
I am running the apxs script from within the apache directory [path to
apache]/apache/bin and I have Perl 5.004_04 installed, i am using
SunOS 5.7 with a SPARC station 20 ..
Could someone point out the problem ? Any help is appreciated.
Jim
Re: Catalina vs.preServletInit et. al.
Posted by "Craig R. McClanahan" <cr...@apache.org>.
On Fri, 23 Mar 2001, T. Park wrote:
>
> Hello,
>
> I'm a newbie to the Catalina code line and need some guidance (lots actually)...
>
> I have a custom interceptor that works really well with Tomcat 3.x that does
> some special setup work
> in the preServletInit/postServletInit, preService/postService and
> preServletDestroy/postServletDestroy methods of
> the special RequestInterceptor.
>
> My problem is determining functional equivalents to these in Catalina.
>
The model for customized request processing in Catalina is quite a bit
different than Tomcat 3.x. Fundamentally, you use a Valve for most
processing. Valves implement the "chain of responsibility" pattern from
the GoF book -- and once you understand them, you will also understand how
Filters work in the servlet 2.3 spec :-). However, Valves don't directly
do what you're asking for here.
The Context element supports the registration of InstanceListener objects,
which receive InstanceEvent notifications of the six events you mentioned
above, plus beforeFilter and afterFilter (2.3 specific). This follows the
usual JavaBeans patterns for event notification.
>From server.xml, you can configure instance listeners by nesting a new
element inside the <Context>
<Context path="/..." ...>
<InstanceListener className="com.mycompany.MyListener/>
</Context>
> Can anyone give me any pointers - I sort of lost my way in the source code and
> documentation
> (primarily due to existing references to 'interceptors' in both comments and
> docs.)
>
> Is there still a way to do some pre/post processing for each corresponding
> servlet call (init,destroy and service).
>
> I looked at VavleBase and couldn't see any direct comparison.
>
> -Thom
>
>
>
>
Craig McClanahan