@GrabConfig(systemClassLoader=true)

@Grab('com.oracle.database.jdbc:ojdbc8:19.3.0.0')

import groovy.sql.Sql

if (args.length != 4) {

println "Usage: groovy OracleConnectionCheck.groovy <url> <user> <password> <driver>"

System.exit(1)

}

def url = args[0]

def user = args[1]

def password = args[2]

def driver = args[3]

try {

def sql = Sql.newInstance(url, user, password, driver)

println 'Connection successful!'

sql.close()

} catch (Exception e) {

println "Connection failed: ${e.message}"

}