Reading out all actions in a Grails-Controller

Question

I need to read out all available actions from any controller in my web-app. The reason for this is an authorization system where I need to give users a list of allowed actio

Answer 1

Here's an example that works with Grails 2, i.e it will capture actions defined as either methods or closures

import org.codehaus.groovy.grails.commons.DefaultGrailsControllerClass
import java.lang.reflect.Method
import grails.web.Action

// keys are logical controller names, values are list of action names  
// that belong to that controller
def controllerActionNames = [:]

grailsApplication.controllerClasses.each { DefaultGrailsControllerClass controller ->

    Class controllerClass = controller.clazz

    // skip controllers in plugins
    if (controllerClass.name.startsWith('com.mycompany')) {
        String logicalControllerName = controller.logicalPropertyName

        // get the actions defined as methods (Grails 2)
        controllerClass.methods.each { Method method ->

            if (method.getAnnotation(Action)) {
                def actions = controllerActionNames[logicalControllerName] ?: []
                actions << method.name

                controllerActionNames[logicalControllerName] = actions
            }
        }
    }
}