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1   /**
2    * Logback: the reliable, generic, fast and flexible logging framework.
3    * Copyright (C) 1999-2022, QOS.ch. All rights reserved.
4    *
5    * This program and the accompanying materials are dual-licensed under
6    * either the terms of the Eclipse Public License v1.0 as published by
7    * the Eclipse Foundation
8    *
9    *   or (per the licensee's choosing)
10   *
11   * under the terms of the GNU Lesser General Public License version 2.1
12   * as published by the Free Software Foundation.
13   */
14  package ch.qos.logback.core.model.processor;
15  
16  import ch.qos.logback.core.Context;
17  import ch.qos.logback.core.model.AppenderRefModel;
18  import ch.qos.logback.core.model.Model;
19  
20  @PhaseIndicator(phase = ProcessingPhase.DEPENDENCY_ANALYSIS)
21  public class AppenderRefDependencyAnalyser extends ModelHandlerBase {
22  
23      public AppenderRefDependencyAnalyser(Context context) {
24          super(context);
25      }
26  
27      @Override
28      protected Class<AppenderRefModel> getSupportedModelClass() {
29          return AppenderRefModel.class;
30      }
31  
32      @Override
33      public void handle(ModelInterpretationContext mic, Model model) throws ModelHandlerException {
34  
35          AppenderRefModel appenderRefModel = (AppenderRefModel) model;
36  
37          String ref = mic.subst(appenderRefModel.getRef());
38  
39          Model depender;
40          if (mic.isModelStackEmpty()) {
41              // appenderRefModel maybe the dependent model. This is the case in logback-access
42              depender = appenderRefModel;
43          } else {
44              Model parentModel = mic.peekModel();
45              depender = parentModel;
46          }
47  
48          DependencyDefinition dd = new DependencyDefinition(depender, ref);
49          mic.addDependencyDefinition(dd);
50          
51      }
52  
53  }