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 2010–2011 ApexIdentity Inc.
015 * Portions Copyright 2011-2014 ForgeRock AS.
016 */
017
018package org.forgerock.openig.resolver;
019
020import java.util.Map;
021
022import org.forgerock.openig.util.UnmodifiableCollection;
023
024/**
025 * Resolves {@link Map} objects.
026 */
027@SuppressWarnings("rawtypes")
028public class MapResolver implements Resolver {
029
030    @Override
031    public Class<?> getKey() {
032        return Map.class;
033    }
034
035    @Override
036    public Object get(Object object, Object element) {
037        if (object instanceof Map) {
038            Map<?, ?> map = (Map<?, ?>) object;
039            if (map.containsKey(element)) {
040                return map.get(element);
041            }
042        }
043        return Resolver.UNRESOLVED;
044    }
045
046    @SuppressWarnings("unchecked")
047    @Override
048    public Object put(Object object, Object element, Object value) {
049        if (object instanceof Map && !(object instanceof UnmodifiableCollection)) {
050            Map map = (Map) object;
051            try {
052                return map.put(element, value);
053            } catch (UnsupportedOperationException uoe) {
054                // ignore failed attempts to write to read-only map
055            }
056        }
057        return Resolver.UNRESOLVED;
058    }
059}