/**
    * Logback: the reliable, generic, fast and flexible logging framework.
    * Copyright (C) 1999-2022, QOS.ch. All rights reserved.
    *
    * This program and the accompanying materials are dual-licensed under
    * either the terms of the Eclipse Public License v1.0 as published by
    * the Eclipse Foundation
    *
    *   or (per the licensee's choosing)
   *
   * under the terms of the GNU Lesser General Public License version 2.1
   * as published by the Free Software Foundation.
   */
  package ch.qos.logback.core.model.processor;
  
  import ch.qos.logback.core.Context;
  import ch.qos.logback.core.model.AppenderRefModel;
  import ch.qos.logback.core.model.Model;
  
  @PhaseIndicator(phase = ProcessingPhase.DEPENDENCY_ANALYSIS)
  public class AppenderRefDependencyAnalyser extends ModelHandlerBase {
  
      public AppenderRefDependencyAnalyser(Context context) {
          super(context);
      }
  
      @Override
      protected Class<AppenderRefModel> getSupportedModelClass() {
          return AppenderRefModel.class;
      }
  
      @Override
      public void handle(ModelInterpretationContext mic, Model model) throws ModelHandlerException {
  
          AppenderRefModel appenderRefModel = (AppenderRefModel) model;
  
          String ref = mic.subst(appenderRefModel.getRef());
  
          Model depender;
          if (mic.isModelStackEmpty()) {
              // appenderRefModel maybe the dependent model. This is the case in logback-access
              depender = appenderRefModel;
          } else {
              Model parentModel = mic.peekModel();
              depender = parentModel;
          }
  
          DependencyDefinition dd = new DependencyDefinition(depender, ref);
          mic.addDependencyDefinition(dd);
          
      }
  
  }