    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.Arrays;
    022    import java.util.Iterator;
    023
    024    /**
    025     * A configuration wrapper to read applet parameters. This configuration is
    026     * read only, adding or removing a property will throw an
    027     * UnsupportedOperationException.
    028     *
    029     * @author <a href="mailto:ebourg@apache.org">Emmanuel Bourg</a>
    030     * @version $Id: AppletConfiguration.java 1211124 2011-12-06 20:56:16Z oheger $
    031     * @since 1.1
    032     */
    033    public class AppletConfiguration extends BaseWebConfiguration
    034    {
    035        /** Stores the wrapped applet.*/
    036        protected Applet applet;
    037
    038        /**
    039         * Create an AppletConfiguration using the initialization parameters of
    040         * the specified Applet.
    041         *
    042         * @param applet the applet
    043         */
    044        public AppletConfiguration(Applet applet)
    045        {
    046            this.applet = applet;
    047        }
    048
    049        public Object getProperty(String key)
    050        {
    051            return handleDelimiters(applet.getParameter(key));
    052        }
    053
    054        public Iterator<String> getKeys()
    055        {
    056            String[][] paramsInfo = applet.getParameterInfo();
    057            String[] keys = new String[paramsInfo != null ? paramsInfo.length : 0];
    058            for (int i = 0; i < keys.length; i++)
    059            {
    060                keys[i] = paramsInfo[i][0];
    061            }
    062
    063            return Arrays.asList(keys).iterator();
    064        }
    065    }