001/*
002 * Logback: the reliable, generic, fast and flexible logging framework.
003 * Copyright (C) 1999-2026, 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 v2.0 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 */
014
015package ch.qos.logback.core.joran;
016
017import ch.qos.logback.core.Context;
018import ch.qos.logback.core.joran.util.PropertySetter;
019import ch.qos.logback.core.joran.util.beans.BeanDescriptionCache;
020import ch.qos.logback.core.model.Model;
021import ch.qos.logback.core.model.ParamModel;
022import ch.qos.logback.core.model.processor.ModelHandlerBase;
023import ch.qos.logback.core.model.processor.ModelHandlerException;
024import ch.qos.logback.core.model.processor.ModelInterpretationContext;
025
026public class ParamModelHandler extends ModelHandlerBase {
027
028    private final BeanDescriptionCache beanDescriptionCache;
029
030    public ParamModelHandler(Context context, BeanDescriptionCache beanDescriptionCache) {
031        super(context);
032        this.beanDescriptionCache = beanDescriptionCache;
033    }
034
035    static public ModelHandlerBase makeInstance(Context context, ModelInterpretationContext ic) {
036        return new ParamModelHandler(context, ic.getBeanDescriptionCache());
037    }
038
039    @Override
040    protected Class<ParamModel> getSupportedModelClass() {
041        return ParamModel.class;
042    }
043
044    @Override
045    public void handle(ModelInterpretationContext mic, Model model) throws ModelHandlerException {
046
047        ParamModel paramModel = (ParamModel) model;
048
049        String valueStr = mic.subst(paramModel.getValue());
050
051        Object o = mic.peekObject();
052
053        PropertySetter propSetter = new PropertySetter(beanDescriptionCache, o);
054        propSetter.setContext(context);
055
056        // allow for variable substitution for name as well
057        String finalName = mic.subst(paramModel.getName());
058        propSetter.setProperty(finalName, valueStr);
059    }
060
061}