/**
* Logback: the reliable, fast and flexible logging library for Java.
*
* Copyright (C) 1999-2006, QOS.ch
*
* This library is free software, you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation.
*/
package chapter3.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 chapter3.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 Güulcü
*/
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);
}
}
}