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 */
014
015package ch.qos.logback.core.joran.conditional;
016
017import org.xml.sax.Attributes;
018
019import ch.qos.logback.core.joran.action.BaseModelAction;
020import ch.qos.logback.core.joran.action.PreconditionValidator;
021import ch.qos.logback.core.joran.spi.SaxEventInterpretationContext;
022import ch.qos.logback.core.model.conditional.IfModel;
023import ch.qos.logback.core.model.Model;
024
025public class IfAction extends BaseModelAction  {
026    
027    public static final String CONDITION_ATTRIBUTE = "condition"; 
028    
029    @Override
030    protected boolean validPreconditions(SaxEventInterpretationContext interpcont, String name, Attributes attributes) {
031        PreconditionValidator pv = new PreconditionValidator(this, interpcont, name, attributes);
032        pv.generic(CONDITION_ATTRIBUTE);
033        return pv.isValid();
034    }
035    
036    @Override
037    protected Model buildCurrentModel(SaxEventInterpretationContext interpretationContext, String name,
038            Attributes attributes) {
039        IfModel ifModel = new IfModel();
040        
041        String condition = attributes.getValue(CONDITION_ATTRIBUTE);
042        ifModel.setCondition(condition);
043        
044        return ifModel;
045    }
046
047}