Loading beans from Grails Script - grails

Question

I'm running a grails script to load a bean from the grails application, however, it seems that I have a dependency problem. Here it's my code:
import grails.spring.BeanBuilder
import org.springframework.context.ApplicationContext
target(main: "Script to load location information into Solr") {
println "Hello script"
def bb = new BeanBuilder()
ApplicationContext appContext = bb.createApplicationContext()
def service = appContext.getBean("solrjService")
}
setDefaultTarget(main)
When I execute the script I get the following stacktrace:
main:
Hello script
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.groovy.tools.GroovyStarter.rootLoader(GroovyStarter.java:108)
at org.codehaus.groovy.tools.GroovyStarter.main(GroovyStarter.java:130)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Caused by: java.lang.IllegalAccessError: tried to access field org.slf4j.impl.StaticLoggerBinder.SINGLETON from class org.slf4j.LoggerFactory
at org.slf4j.LoggerFactory.staticInitialize(LoggerFactory.java:83)
at org.slf4j.LoggerFactory.<clinit>(LoggerFactory.java:73)
at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:155)
at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:131)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:272)
at grails.spring.BeanBuilder.<clinit>(BeanBuilder.java:84)
Any ideas ??
Thanks for your time

Answer 1

If your read the call stack, it's obviously a problem with SLF4J.
See http://slf4j.org/faq.html#IllegalAccessError
It looks like you may be mixing versions of the SLF4J jars, and getting a conflict.
But, of course, Burt is correct - once you get past this, you will find that you've initialized you BeanBuilder's ApplicationContext with no beans.

Answer 2

I had to include the target _GrailsBootstrap to be able to load my beans http://grails.org/doc/latest/guide/commandLine.html#creatingGantScripts
includeTargets << grailsScript("_GrailsBootstrap")
target ('default': "Load Location Information to Solr Server") {
depends(configureProxy, packageApp, classpath, loadApp, configureApp)
def service = appCtx.getBean('solrjService')
println service.getLocationSuggestion("Barcelona")
}
I run script his way (that's why I had a classpath problem)
grails run-script scripts/Myscript.groovy
Then now, I run it this way
grails Myscript.groovy
and I don't have any classpath problems :D
thanks for your help