    001    /*
    002     * Licensed to the Apache Software Foundation (ASF) under one or more
    003     * contributor license agreements.  See the NOTICE file distributed with
    004     * this work for additional information regarding copyright ownership.
    005     * The ASF licenses this file to You under the Apache License, Version 2.0
    006     * (the "License"); you may not use this file except in compliance with
    007     * the License.  You may obtain a copy of the License at
    008     *
    009     *     http://www.apache.org/licenses/LICENSE-2.0
    010     *
    011     * Unless required by applicable law or agreed to in writing, software
    012     * distributed under the License is distributed on an "AS IS" BASIS,
    013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014     * See the License for the specific language governing permissions and
    015     * limitations under the License.
    016     */
    017
    018    package org.apache.commons.configuration.web;
    019
    020    import java.applet.Applet;
    021    import java.util.Iterator;
    022
    023    import org.apache.commons.collections.iterators.ArrayIterator;
    024
    025    /**
    026     * A configuration wrapper to read applet parameters. This configuration is
    027     * read only, adding or removing a property will throw an
    028     * UnsupportedOperationException.
    029     *
    030     * @author <a href="mailto:ebourg@apache.org">Emmanuel Bourg</a>
    031     * @version $Revision: 515306 $, $Date: 2007-03-06 22:15:00 +0100 (Di, 06. Mrz 2007) $
    032     * @since 1.1
    033     */
    034    public class AppletConfiguration extends BaseWebConfiguration
    035    {
    036        /** Stores the wrapped applet.*/
    037        protected Applet applet;
    038
    039        /**
    040         * Create an AppletConfiguration using the initialization parameters of
    041         * the specified Applet.
    042         *
    043         * @param applet the applet
    044         */
    045        public AppletConfiguration(Applet applet)
    046        {
    047            this.applet = applet;
    048        }
    049
    050        public Object getProperty(String key)
    051        {
    052            return handleDelimiters(applet.getParameter(key));
    053        }
    054
    055        public Iterator getKeys()
    056        {
    057            String[][] paramsInfo = applet.getParameterInfo();
    058            String[] keys = new String[paramsInfo != null ? paramsInfo.length : 0];
    059            for (int i = 0; i < keys.length; i++)
    060            {
    061                keys[i] = paramsInfo[i][0];
    062            }
    063
    064            return new ArrayIterator(keys);
    065        }
    066    }