/**
    * Logback: the reliable, generic, fast and flexible logging framework.
    * Copyright (C) 1999-2011, QOS.ch. All rights reserved.
    *
    * This program and the accompanying materials are dual-licensed under
    * either the terms of the Eclipse Public License v1.0 as published by
    * the Eclipse Foundation
    *
    *   or (per the licensee's choosing)
   *
   * under the terms of the GNU Lesser General Public License version 2.1
   * as published by the Free Software Foundation.
   */
  package chapters.onJoran.calculator;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import ch.qos.logback.core.Context;
  import ch.qos.logback.core.ContextBase;
  import ch.qos.logback.core.joran.action.Action;
  import ch.qos.logback.core.joran.spi.JoranException;
  import ch.qos.logback.core.joran.spi.Pattern;
  import ch.qos.logback.core.util.StatusPrinter;
  import chapters.onJoran.SimpleConfigurator;
  
  
  /**
   * This examples illustrates collaboration between multiple actions through the
   * common execution context stack.
   * 
   * It differs from Calculator1 in that it supports arbitrary nesting of 
   * computation elements.
   * 
   * You can test this application with the sample XML file <em>calculator3.xml</em>.
   * 
   * @author Ceki G&uuml;ulc&uuml;
   */
  public class Calculator2 {
    public static void main(String[] args) throws Exception {
      Map<Pattern, Action> ruleMap = new HashMap<Pattern, Action>();
     
      
      // Note the wild card character '*', in the paterns, signifying any level 
      // of nesting.
      ruleMap.put(new Pattern("*/computation"), new ComputationAction2());
  
      ruleMap.put(new Pattern("*/computation/literal"), new LiteralAction());
      ruleMap.put(new Pattern("*/computation/add"), new AddAction());
      ruleMap.put(new Pattern("*/computation/multiply"), new MultiplyAction());
      
      Context context = new ContextBase();
      SimpleConfigurator simpleConfigurator = new SimpleConfigurator(ruleMap);
      // link the configurator with its context
      simpleConfigurator.setContext(context);
  
      try {
        simpleConfigurator.doConfigure(args[0]);
      } catch (JoranException e) {
        // Print any errors that might have occured.
        StatusPrinter.print(context);
      }
    }
  }