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
018package org.apache.commons.configuration.web;
019
020import java.applet.Applet;
021import java.util.Arrays;
022import 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 */
033public 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}