A template for creating an Xtend based CodeGenerator using the Ecore implementation of the IFML metamodel and a sample model.

IFMLCodeGenerator-Main.xtend

package generator

// This code is based on this stackoverflow answer:http://stackoverflow.com/questions/12458852/load-emf-model-instance-in-xtend

import org.eclipse.emf.common.util.URI
import org.eclipse.emf.ecore.resource.Resource
import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl
import org.eclipse.emf.ecore.xmi.impl.XMIResourceFactoryImpl
import org.eclipse.emf.ecore.EPackage

class CodeGenerator {

  def static void main(String[] args) {
    
    // The model.xmi should be located at the project root.
    new CodeGenerator().generate("model.xmi")
  }

  def generate(String file) {
    doEMFSetup
    val resourceSet = new ResourceSetImpl
    val resource = resourceSet.getResource(URI::createURI(file), true)
    
    for (content : resource.contents) {
      // <- Entry Point
    }
  }

  def doEMFSetup() {
    // All the EPackages of the metamodel should be registered. 
    // In this example they are declared as extensions of the IFMLEditor jar [Available at: https://github.com/ifml/ifml-editor]
    EPackage$Registry::INSTANCE.put("'http://www.omg.org/spec/20130218/core'", IFML.Core.CorePackage::eINSTANCE)
    EPackage$Registry::INSTANCE.put("'http://www.omg.org/spec/20130218/ext'", IFML.Extensions.ExtensionsPackage::eINSTANCE)
    EPackage$Registry::INSTANCE.put("'http://www.omg.org/spec/20130218/data'", IFML.DataTypes.DataTypesPackage::eINSTANCE)
    Resource.Factory.Registry::INSTANCE.extensionToFactoryMap.put("xmi", new XMIResourceFactoryImpl);
  }

}