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def methodMissing(String methodName, Object args) {
  FinderMethod method = gormDynamicFinders.find { 
    FinderMethod f -> f.isMethodMatch(methodName) 
  }
  if (!method) {
    throw new MissingMethodException(methodName, persistentClass, args)
  }

  def mc = persistentClass.getMetaClass()
  

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AnnotatedNode targetClass = (AnnotatedNode) nodes[1];
            
if (!(targetClass instanceof ClassNode))
  sourceUnit.addError(
          new SyntaxException("@Logger anotado fora de uma Classe",
          logAnnotation.getLineNumber(),
          logAnnotation.getLastColumnNumber()));
 
final ClassNode classNode = (ClassNode) targetClass;

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@Logger 
class Controller {
        
}

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@Override
public void visit(ASTNode[] nodes, SourceUnit sourceUnit) {

  AnnotationNode logAnnotation = (AnnotationNode) nodes[0];
  ClassNode targetClass = (ClassNode) nodes[1];
      
  final ClassNode LOGGER_CLASSNODE = ClassHelper.make(
                       java.util.logging.Logger.class);
   
   classNode.addField("log",

luksrn

package transformacoes;
 
import org.codehaus.groovy.ast.ASTNode;
import org.codehaus.groovy.control.CompilePhase;
import org.codehaus.groovy.control.SourceUnit;
import org.codehaus.groovy.transform.ASTTransformation;
import org.codehaus.groovy.transform.GroovyASTTransformation;

@GroovyASTTransformation(phase=CompilePhase.SEMANTIC_ANALYSIS)
public class LoggerTransformation implements ASTTransformation {

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 package transformacoes;
 import ...
 @Retention(RetentionPolicy.SOURCE)
 @Target({ElementType.TYPE})
 @GroovyASTTransformationClass("transformacoes.LoggerTransformation")
 public @interface Logger {
 }

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  @Test
  public void testarTransformacaoQueIncluiAtributoLog() {
    def existeCampo = Controller.declaredFields.any { it.name == 'log' }
    assert existeCampo
  }

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class Controller {
        
}

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public class Controller {
   private static final Logger log = Logger.getLogger(‘Controller’)
   public java.lang.Object index() {
        if (log.isLoggable(Level.INFO)) {
            log.info 'Entrando no Index...'
        }
      return null
  }
}

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 @groovy.util.logging.Log
 class Controller {
    def index(){
      log.info "Entrando no Index..."
    }
 }