001/*
002 * The contents of this file are subject to the terms of the Common Development and
003 * Distribution License (the License). You may not use this file except in compliance with the
004 * License.
005 *
006 * You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
007 * specific language governing permission and limitations under the License.
008 *
009 * When distributing Covered Software, include this CDDL Header Notice in each file and include
010 * the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
011 * Header, with the fields enclosed by brackets [] replaced by your own identifying
012 * information: "Portions copyright [year] [name of copyright owner]".
013 *
014 * Copyright 2014-2015 ForgeRock AS.
015 */
016
017package org.forgerock.openig.el.plugins;
018
019import java.util.Collections;
020
021import org.forgerock.openig.el.ExpressionPlugin;
022
023/**
024 * An ELContext node plugin that provides read-only access to environment variables.
025 */
026public class EnvironmentVariablesPlugin implements ExpressionPlugin {
027    @Override
028    public Object getObject() {
029        return Collections.unmodifiableMap(System.getenv());
030    }
031
032    @Override
033    public String getKey() {
034        return "env";
035    }
036}