001 /** 002 * Copyright (c) 2000-2011 Liferay, Inc. All rights reserved. 003 * 004 * The contents of this file are subject to the terms of the Liferay Enterprise 005 * Subscription License ("License"). You may not use this file except in 006 * compliance with the License. You can obtain a copy of the License by 007 * contacting Liferay, Inc. See the License for the specific language governing 008 * permissions and limitations under the License, including but not limited to 009 * distribution rights of the Software. 010 * 011 * 012 * 013 */ 014 015 package com.liferay.portal.tools; 016 017 import com.liferay.portal.kernel.util.Validator; 018 019 import java.util.HashMap; 020 021 /** 022 * @author Raymond Augé 023 */ 024 public class ArgumentsMap extends HashMap<String, String> { 025 026 @Override 027 public String get(Object key) { 028 String value = super.get(key); 029 030 if (Validator.isNull(value)) { 031 value = System.getProperty((String)key); 032 } 033 034 return value; 035 } 036 037 }