Unable to query a db from gradle build script

Question

I am trying to query a db from within a gradle script task. I started with a groovy script to verify the code

import groovy.sql.Sql

this.class.classLoader.r         


        

Answer 1

Due to groovy dynamic nature, classloading within gradle is quite complex. I would like to thank @cptwonton that pointed me to a great explanation here

I had to modify the gradle script a little and this is the working version. The jdts-1.2.2.jar is in the lib directory referred by flatDir.

import groovy.sql.Sql

defaultTasks 'queryTest'

task queryTest () {
    repositories {
        flatDir {
            dirs 'lib'
        }
    }
    configurations {
        jdbc
    }
    dependencies {
        jdbc 'net.sourceforge.jtds:jtds:1.2.2'
    }

    doLast {
        def sqlClassLoader = Sql.classLoader
        configurations.jdbc.each { sqlClassLoader.addURL it.toURI().toURL() }

        def driver = 'net.sourceforge.jtds.jdbc.Driver'
        def dburl = "jdbc:jtds:sqlserver://ITSVIL:1433/APPDB"
        def first
        Sql.withInstance(dburl, '<..>', '<..>', driver) {
            sql ->
                first = sql.firstRow( "SELECT * FROM PROJECT" )
        }
    }
}