/* *  Copyright (c) 2001 Sun Microsystems, Inc.  All rights *  reserved. * *  Redistribution and use in source and binary forms, with or without *  modification, are permitted provided that the following conditions *  are met: * *  1. Redistributions of source code must retain the above copyright *  notice, this list of conditions and the following disclaimer. * *  2. Redistributions in binary form must reproduce the above copyright *  notice, this list of conditions and the following disclaimer in *  the documentation and/or other materials provided with the *  distribution. * *  3. The end-user documentation included with the redistribution, *  if any, must include the following acknowledgment: *  "This product includes software developed by the *  Sun Microsystems, Inc. for Project JXTA." *  Alternately, this acknowledgment may appear in the software itself, *  if and wherever such third-party acknowledgments normally appear. * *  4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" *  must not be used to endorse or promote products derived from this *  software without prior written permission. For written *  permission, please contact Project JXTA at http://www.jxta.org. * *  5. Products derived from this software may not be called "JXTA", *  nor may "JXTA" appear in their name, without prior written *  permission of Sun. * *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES *  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE *  DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR *  ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF *  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, *  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT *  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF *  SUCH DAMAGE. *  ==================================================================== * *  This software consists of voluntary contributions made by many *  individuals on behalf of Project JXTA.  For more *  information on Project JXTA, please see *  <http://www.jxta.org/>. * *  This license is based on the BSD license adopted by the Apache Foundation. * *  $Id: BaseOptimizer.java,v 1.4 2005/12/14 22:33:20 gonzo Exp $ */package net.jxta.ext.config.optimizers;import net.jxta.ext.config.Optimizer;import java.util.ArrayList;import java.util.Collections;import java.util.HashMap;import java.util.List;import java.util.Map;/** * Abstract base {@link net.jxta.ext.config.Optimizer}. * * @author  james todd  [gonzo at jxta dot org] */public abstract class BaseOptimizerimplements Optimizer {       /**     * Properties container.     */        Map properties = null;        /**     * Specify a property value with the provided key.     *     * @param   key     property key     * @param   value   property value     */        public void addProperty(String key, String value) {        key = key != null ? key.trim() : null;        value = value != null ? value.trim() : null;                if (key != null &&            value != null) {            if (this.properties == null) {                this.properties = new HashMap();            }                        List v = (List)this.properties.get(key);                        if (v == null) {                this.properties.put(key, v = new ArrayList());            }                        v.add(value);        }    }        /**     * Accessor to a keyed property.     *     * @param       key     property key     * @return              property value for the specified key     */        public List getProperty(String key) {        return (this.properties != null ?            (List)this.properties.get(key) : Collections.EMPTY_LIST);    }}