CODEWITHSUNDEEP
javabashshellmaven
sensitive_piece_of_horseflesh
sensitive_piece_of_horseflesh

Reputation: 977

sh - running a class file in maven project using shell script

I am new to writing shell scripts and was trying to write a small script to run a class file in a maven project using following shell script :

function cleanup() {
   kill ${SERVER_PID} ${CLIENT_PID}
   rm -f cp.txt
}

trap cleanup EXIT

mvn test dependency:build-classpath -Dmdep.outputFile=cp.txt
CLASSPATH=$(cat cp.txt):target/classes
java -classpath ${CLASSPATH} com.practice.Server &
SERVER_PID=$$

while ! nc localhost 1111 > /dev/null 2>&1 < /dev/null; do
    echo "$(date) - waiting for server at localhost:1111..."
    sleep 1
done

java -classpath ${CLASSPATH} com.practice.Client
CLIENT_PID=$$
cleanup

But I keep getting

waiting for server at localhost:1111

with error : 

Error: Could not find or load main class com.paractice.Server

Note : This sh file is present in project folder i.e. parallel to src and target folder.

Please help !!!

Upvotes: 3

Views: 1415

Answers (1)

Daniel
Daniel

Reputation: 4221

You could use the exec plugin.

Instead of:

mvn test dependency:build-classpath -Dmdep.outputFile=cp.txt
CLASSPATH=$(cat cp.txt):target/classes
java -classpath ${CLASSPATH} com.practice.Server &

you can do:

mvn test exec:java -Dexec.mainClass=com.practice.Server

This will run your program synchronously.

You can change that by either adding the ampersand (&) at the end

or

use mvn exec:exec, which can run asynchronously:

mvn test exec:exec -Dexec.async=true -Dexec.executable="java" -Dexec.args="-classpath %classpath com.practice.Server"

Full description of the plugin is available at http://www.mojohaus.org/exec-maven-plugin/index.html

Upvotes: 2

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