001/**
002 * Logback: the reliable, generic, fast and flexible logging framework.
003 * Copyright (C) 1999-2022, QOS.ch. All rights reserved.
004 *
005 * This program and the accompanying materials are dual-licensed under
006 * either the terms of the Eclipse Public License v1.0 as published by
007 * the Eclipse Foundation
008 *
009 *   or (per the licensee's choosing)
010 *
011 * under the terms of the GNU Lesser General Public License version 2.1
012 * as published by the Free Software Foundation.
013 */
014package ch.qos.logback.core.model.processor;
015
016import ch.qos.logback.core.Context;
017import ch.qos.logback.core.model.Model;
018
019@PhaseIndicator(phase = ProcessingPhase.DEPENDENCY_ANALYSIS)
020public class RefContainerDependencyAnalyser extends ModelHandlerBase {
021
022    final Class<?> modelClass;
023
024    public RefContainerDependencyAnalyser(Context context, Class<?> modelClass) {
025        super(context);
026        this.modelClass = modelClass;
027    }
028
029    @Override
030    protected boolean isSupportedModelType(Model model) {
031
032        if (modelClass.isInstance(model)) {
033            return true;
034        }
035
036        StringBuilder buf = new StringBuilder("This handler can only handle models of type ");
037        buf.append(modelClass.getName());
038        addError(buf.toString());
039        return false;
040    }
041
042    @Override
043    public void handle(ModelInterpretationContext mic, Model model) throws ModelHandlerException {
044        mic.pushModel(model);
045    }
046
047    @Override
048    public void postHandle(ModelInterpretationContext mic, Model model) throws ModelHandlerException {
049        Model poppedModel = mic.popModel();
050        if (model != poppedModel) {
051            addError("Popped model [" + poppedModel + "] different than expected [" + model + "]");
052        }
053    }
054}