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.configuration2.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 read only, adding or removing a property 026 * will throw an UnsupportedOperationException. 027 * 028 * @since 1.1 029 */ 030public class AppletConfiguration extends BaseWebConfiguration { 031 /** Stores the wrapped applet. */ 032 protected Applet applet; 033 034 /** 035 * Create an AppletConfiguration using the initialization parameters of the specified Applet. 036 * 037 * @param applet the applet 038 */ 039 public AppletConfiguration(final Applet applet) { 040 this.applet = applet; 041 } 042 043 @Override 044 protected Object getPropertyInternal(final String key) { 045 return handleDelimiters(applet.getParameter(key)); 046 } 047 048 @Override 049 protected Iterator<String> getKeysInternal() { 050 final String[][] paramsInfo = applet.getParameterInfo(); 051 final String[] keys = new String[paramsInfo != null ? paramsInfo.length : 0]; 052 if (paramsInfo != null) { 053 for (int i = 0; i < keys.length; i++) { 054 keys[i] = paramsInfo[i][0]; 055 } 056 } 057 return Arrays.asList(keys).iterator(); 058 } 059}