I try a simall test using aspectj to capture the doFilter() execution of
TapestryFilter.java. The pointcut intends to caputre the doFilter method and
prints out some information in the e.g. catalina.out log file. The code
looks as below:
public aspect Test{
pointcut intercept(): execution(*
org.apache.tapestry5.services.TapestryFilter.doFilter(..));
void around() : intercept(){
System.out.println(" ...... test info ");
logger.debug(" ..... test info using slf4j"); // configure log
properties already.
proceed();
}
}
If I copy TapestryFilter.java to my own folder e.g. myproject/pkg/web/ and
rename it to e.g. MyTapestryFilter.java. When accessing from the brwoswer
http://localhost:8080/myproject. The log will show the debug information
printed in the catalina.out log file. However, if the web.xml filter class
switch back using TapestryFilter.java, then nothing happens.
I am just curious if Tapestry5 add any contract that prevents bytecode level
weaving? Or is there any source code as entry point I can start to have a
look (TapestryFilter.java looks like a normal Filter calss)?
I appreciate any help.
Thank you.
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