A fim de fazer testes com várias configurações diferentes e gerar um relatório com dados precisos, escrevi um script que executa o init script do JBoss, espera ele inicializar completamente, grava o tempo de inicialização e mata o processo. Faz isso 50 vezes.

Estou postando ele aqui na esperança de ser útil para mais alguém. Ele é bastante auto-explicativo:

#!/bin/bash
# Notes: all Java processes are going to the KILLED and
# previous probe.log ERASED!
 
JBOSS_LOG_FILE="/opt/jboss/server/default/log/server.log"
REPEAT=50
 
START_STRING="Started in"
RESULT_FILE="/root/probe.log-`date +%F`"
> $RESULT_FILE
 
for i in $(seq 1 $REPEAT); do
	# clean
	killall -9 java
	> $JBOSS_LOG_FILE
 
	# init and wait
	sh /etc/init.d/jboss start
	while [ "x$( grep "$START_STRING" $JBOSS_LOG_FILE )" == "x" ]; do
		sleep 1
	done
 
	# log
	cat $JBOSS_LOG_FILE | grep "$START_STRING" >> $RESULT_FILE
done
 
echo "Done"

#!/bin/bash
if [ "$1" = "" ]; then
	echo "Usage: jarfind REGEXP";
	exit;
fi
 
for d in `find . -name '*.jar'` ; do
	FILES=`unzip -l $d | cut -c 29- | egrep ''$1''`;
 
	if [ "$FILES" != "" ]; then
		echo "$d";
 
		for f in $FILES ; do
			echo " - $f"
		done
	fi
done

I’ve chose to use unzip instead of jar since it’s far more commonly seem. Move it to /usr/local/bin/jarfind (well, that’s a little personal) and chmod it to +x.

I works searching all jars under the current directory for a regular expression, most commonly a simple class name. It returns the jar’s names and all corresponding class matches.

I’m not a bash programmer, so it may not look that pretty to experienced bash programmers, but it looks beautiful to me, as it saves me a lot of time =). Feel free to make any comments.

EDIT:

first known bug: doesn’t escape special characters in paths =/