DefaultValues.java

/*
 * DefaultValues.java
 *
 * Created on den 20 oktober 2005, 13:18
 *
 * To change this template, choose Tools | Options and locate the template under
 * the Source Creation and Management node. Right-click the template and choose
 * Open. You can then make changes to the template in the Source Editor.
 */

package net.sf.microlog.util.properties;

import java.util.Hashtable;

/**
 * A property source that contains the default values. This is the lowest level
 * from which properties originate.
 * 
 * @author Darius Katz
 * @author Johan Karlsson (johan.karlsson@jayway.se)
 */
public class DefaultValues implements PropertySource {

	private static final String defaultValues[][] = {
			{ "microlog.level", "INFO" },
			{ "microlog.appender", "mobscrob.logging.microlog.appender.ConsoleAppender" },
			{ "microlog.formatter", "net.sf.microlog.format.SimpleFormatter" }, };

	/** Creates a new instance of DefaultValues */
	public DefaultValues() {
	}

	/**
	 * Insert the values taken from a property source into the Hashtable. This
	 * is the lowest level from which properties originate.
	 * 
	 * @param properties
	 *            the Hashtable in which the properties are stored
	 * 
	 */
	public void insertProperties(Hashtable properties) {
		for (int i = 0; i < defaultValues.length; i++) {
			properties.put(defaultValues[i][0], defaultValues[i][1]);
		}
	}

	/**
	 * Returns the Object to which the specified key is mapped, directly from
	 * the source of the default values (that is not from the Hashtable).
	 * 
	 * @param key
	 *            the key associated to the stored Object
	 * 
	 * @return the Object to which the key is mapped; null if the key is not
	 *         mapped to any Object
	 */
	public Object get(String key) {
		boolean notFound = true;
		for (int i = 0; i < defaultValues.length && notFound; i++) {
			if (key.compareTo(defaultValues[i][0]) == 0) {
				return defaultValues[i][1];
			}
		}

		return null;
	}
}