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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.Model;
18  
19  @PhaseIndicator(phase = ProcessingPhase.DEPENDENCY_ANALYSIS)
20  public class RefContainerDependencyAnalyser extends ModelHandlerBase {
21  
22      final Class<?> modelClass;
23  
24      public RefContainerDependencyAnalyser(Context context, Class<?> modelClass) {
25          super(context);
26          this.modelClass = modelClass;
27      }
28  
29      @Override
30      protected boolean isSupportedModelType(Model model) {
31  
32          if (modelClass.isInstance(model)) {
33              return true;
34          }
35  
36          StringBuilder buf = new StringBuilder("This handler can only handle models of type ");
37          buf.append(modelClass.getName());
38          addError(buf.toString());
39          return false;
40      }
41  
42      @Override
43      public void handle(ModelInterpretationContext mic, Model model) throws ModelHandlerException {
44          mic.pushModel(model);
45      }
46  
47      @Override
48      public void postHandle(ModelInterpretationContext mic, Model model) throws ModelHandlerException {
49          Model poppedModel = mic.popModel();
50          if (model != poppedModel) {
51              addError("Popped model [" + poppedModel + "] different than expected [" + model + "]");
52          }
53      }
54  }