Grails script call my own java classes

Question

I have just created a grails script to create database, but the code is in Java and I thought I could use that in grails script.

This is my script

import com.test.database.*
import com.test.constant.*
import org.neo4j.kernel.*

target(main: "The description of the script goes here!") {
    db = DataRepository.getInstance(new EmbeddedGraphDatabase(
        Constant.PROJECT_PATH + "/web-app/WEB-INF/resources/db"))

}

setDefaultTarget(main)

And my java classes are in src/java, but when I run the script I got this error

Error executing script DbCreate: No such property: DataRepository for class: DbCreate
No such property: DataRepository for class: DbCreate
    at gant.Gant$_dispatch_closure5.doCall(Gant.groovy:387)
    at gant.Gant$_dispatch_closure7.doCall(Gant.groovy:415)
    at gant.Gant$_dispatch_closure7.doCall(Gant.groovy)
    at gant.Gant.withBuildListeners(Gant.groovy:427)
    at gant.Gant.this$2$withBuildListeners(Gant.groovy)
    at gant.Gant$this$2$withBuildListeners.callCurrent(Unknown Source)
    at gant.Gant.dispatch(Gant.groovy:415)
    at gant.Gant.this$2$dispatch(Gant.groovy)
    at gant.Gant.invokeMethod(Gant.groovy)
    at gant.Gant.executeTargets(Gant.groovy:590)
    at gant.Gant.executeTargets(Gant.groovy:589)
Caused by: groovy.lang.MissingPropertyException: No such property: DataRepository for class: DbCreate
    at DbCreate$_run_closure1.doCall(DbCreate:11)
    at gant.Gant$_dispatch_closure5.doCall(Gant.groovy:381)

My question would be could I call user-defined java classes in grails script?

Can we assume that DataRepository.java is in one of the imports you have listed? — Michael J. Lee, Jul 08 '11 at 12:14
I'm not sure that I import it right in Gant script. Is there other way to ensure that it's in the classpath? — toy, Jul 08 '11 at 12:28

score 1 · Accepted Answer · answered Jul 08 '11 at 12:56

1

You could load the class directly using the classLoader like this...

def dataRepo = classLoader.loadClass('path.to.DataRepository')

Or you could also use...

includeTargets << grailsScript('_GrailsBootstrap')

Which should load all you members.

answered Jul 08 '11 at 12:56

Michael J. Lee

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Unfortunately this does not do a full bootstrap. Try to access e.g. org.codehaus.groovy.grails.commons.ConfigurationHolder.config.dataSource.url from the script. – Sergey Orshanskiy Oct 09 '13 at 03:05

score 0 · Answer 2 · answered Jul 08 '11 at 12:58

If you're using 1.3.6 or greater you can use http://grails.org/doc/latest/ref/Command%20Line/run-script.html and if you're using an older version of Grails you can get the script from http://naleid.com/blog/2010/12/03/grails-run-script-updated-for-grails-1-3-5/

Grails script call my own java classes

2 Answers2