Finding a JAR that contains a class
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From: markspace on 22 Apr 2010 14:54 Lew wrote: > > $ find /cygdrive/c/java/jdk1.6.0_20/ /cygdrive/c/java/glassfish/ -name > \*.jar \ > | xargs grep ValidatorFactory Great mind think alike, I suppose. I was having a hard time getting the class name and the jar name together: Brenden(a)Homer /cygdrive/c/Program Files/glassfish-v3-b68 $ find . -name "*.jar" -print0 | xargs -0 -I {} jar -tf {} | grep ValidatorFactory will find something, but it's not clear where it's finding it. So a bit of bash shell scripting worked it out. $ cat findit #!/bin/bash jars=`find . -name "*.jar"` for i in $jars; do # echo JAR: $i jar -tf $i | grep ValidatorFactory if [ $? == 0 ] ; then echo JAR: $i fi done The output of this script is: $ ./findit com/sun/messaging/jmq/jmsclient/validation/ValidatorFactory.class JAR: ./glassfish/lib/install/applications/jmsra/imqjmsra.jar javax/validation/ConstraintValidatorFactory.class javax/validation/ValidatorFactory.class org/hibernate/validation/engine/ConstraintValidatorFactoryImpl.class org/hibernate/validation/engine/ValidatorFactoryImpl.class org/hibernate/validation/util/LazyValidatorFactory.class JAR: ./glassfish/modules/bean-validator.jar com/sun/jsftemplating/component/factory/ri/ValidatorFactory.class JAR: ./glassfish/modules/jsftemplating.jar org/jboss/webbeans/bean/builtin/DefaultValidatorFactoryBean.class JAR: ./glassfish/modules/webbeans-osgi-bundle.jar com/sun/messaging/jmq/jmsclient/validation/ValidatorFactory.class JAR: ./mq/lib/imq.jar So yes it's in glassfish/modules/bean-validator.jar for me too. I think this implies that other containers might use a different .jar however. JBoss, Weblogic, etc. might supply their own implementation elsewhere, so the script above might be handy for the OP.
From: Tom Anderson on 22 Apr 2010 18:27 On Thu, 22 Apr 2010, markspace wrote: > Lew wrote: > >> $ find /cygdrive/c/java/jdk1.6.0_20/ /cygdrive/c/java/glassfish/ -name >> \*.jar \ >> | xargs grep ValidatorFactory > > Great mind think alike, I suppose. I was having a hard time getting the > class name and the jar name together: The handy fact you're missing is that jar files store filenames uncompressed. You don't need to do jar -tf - you can just grep over the file. So: find $SOMEWHERE -name \*.jar -print0 | xargs -0 grep -l ValidatorFactory Will give you the names of the matching jars. No script needed! If you wanted jar names and filenames, probably the easiest thing (IMHO) is a while-read loop: find $SOMEWHERE -name \*.jar -print0 | xargs -0 grep -l ValidatorFactory | while read jarfile; do echo $jarfile $(jar tf $jarfile | grep ValidatorFactory); done Saves having to put all the jar names into a variable. But does read each jar twice. > So a bit of bash shell scripting worked it out. > > $ cat findit > #!/bin/bash > > jars=`find . -name "*.jar"` > > for i in $jars; do > # echo JAR: $i > jar -tf $i | grep ValidatorFactory > if [ $? == 0 ] ; then Kids today! Nobody remembers that the original use of if was directly on exit statuses: if jar -tf $i | grep ValidatorFactory then whatever fi > I think this implies that other containers might use a different .jar > however. JBoss, Weblogic, etc. might supply their own implementation > elsewhere For JBoss 6.0.0.M2, it's $JBOSS_HOME/common/lib/validation-api.jar. Which is actually exactly what i hypothesised earlier - christ, you know you've been in the game too long when you can guess the name of the jar just by looking at the class name. tom -- The world belongs to the mathematics and engineering. The world is as it is. -- Luis Filipe Silva vs Babelfish
From: Tom Anderson on 23 Apr 2010 13:03 On Thu, 22 Apr 2010, John B. Matthews wrote: > In article <alpine.DEB.1.10.1004222312580.7087(a)urchin.earth.li>, > Tom Anderson <twic(a)urchin.earth.li> wrote: > >>> So a bit of bash shell scripting worked it out. >>> >>> $ cat findit >>> #!/bin/bash >>> >>> jars=`find . -name "*.jar"` >>> >>> for i in $jars; do >>> # echo JAR: $i >>> jar -tf $i | grep ValidatorFactory >>> if [ $? == 0 ] ; then >> >> Kids today! Nobody remembers that the original use of if was directly on >> exit statuses: >> >> if jar -tf $i | grep ValidatorFactory >> then >> whatever >> fi > > Now, with more parameters! > > #!/bin/sh > > if [ $# != 2 ]; then > echo "Usage: `basename $0` path string" > exit 1 > fi > > jars=`find $1 -name \*.jar` > > for i in $jars; do > if jar -tf $i | grep $2; then > echo JAR: $i > fi > done What i really want is a script which searches the contents of jars. So if i know i have a resource bundle somewhere in the hojillions of jars which make up my app that has a key 'crucialMessage', i can find it without having to know what the file it's in is called. I think i wrote such a thing as a script at some point; it's not exactly rocket science. But i don't know where i put it, and i'd like something that's a bit more efficient than unzipping every jar in turn and then grepping the results. tom -- No man ever steps in the same river twice, for it's not the same river and he's not the same man. -- Heraclitus
From: Tom Anderson on 23 Apr 2010 13:04 On Thu, 22 Apr 2010, markspace wrote: > Tom Anderson wrote: > >> find $SOMEWHERE -name \*.jar -print0 | xargs -0 grep -l >> ValidatorFactory | while read jarfile; do echo $jarfile $(jar tf >> $jarfile | grep ValidatorFactory); done > > Nice one! > >> Kids today! Nobody remembers that the original use of if was directly >> on exit statuses: > > Thanks for pointing that out. I admit I did that script while reading > the bash scripting How-To. Overall I think it wasn't bad for five > minutes of study and trial and error. I so seldom write shell scripts, > nothing sticks in my brain. Oh, certainly, there was nothing wrong with your script at all, and for someone who's not in the groove of regular shell scripting to write something that works at all in five minutes is pretty good! I only got into read-while loops quite recently myself, so i still like to pimp them to people who perhaps could benefit from them. tom -- No man ever steps in the same river twice, for it's not the same river and he's not the same man. -- Heraclitus
From: markspace on 23 Apr 2010 15:41
Tom Anderson wrote: > > What i really want is a script which searches the contents of jars. So > if i know i have a resource bundle somewhere in the hojillions of jars > which make up my app that has a key 'crucialMessage', i can find it > without having to know what the file it's in is called. I had to use "unzip" to get a pipe for grep, but unzip is available on Cygwin and is part of the GNU packages, so it should be available to most folks, so try this, renamed to "jargrep": $ cat jargrep #!/bin/bash if [ $# != 2 ]; then echo "Usage: `basename $0` path search-string" exit 1 fi jars=`find $1 -name \*.jar` for jar in $jars; do files=`unzip -Z -1 $jar` for content in $files; do if unzip -p $jar $content | grep --binary --label=$jar "$2"; then echo JAR: $jar RESOURCE: $content fi done done |