001    /**
002     * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.security.auth;
016    
017    import com.liferay.portal.kernel.log.Log;
018    import com.liferay.portal.kernel.log.LogFactoryUtil;
019    import com.liferay.portal.kernel.util.ClassUtil;
020    import com.liferay.portal.kernel.util.InstanceFactory;
021    import com.liferay.portal.util.ClassLoaderUtil;
022    import com.liferay.portal.util.PropsValues;
023    
024    /**
025     * @author Sergio González
026     * @author Shuyang Zhou
027     */
028    public class MembershipPolicyFactoryImpl implements MembershipPolicyFactory {
029    
030            public void afterPropertiesSet() throws Exception {
031                    if (_log.isDebugEnabled()) {
032                            _log.debug("Instantiate " + PropsValues.USERS_MEMBERSHIP_POLICY);
033                    }
034    
035                    ClassLoader classLoader = ClassLoaderUtil.getPortalClassLoader();
036    
037                    _originalMembershipPolicy =
038                            (MembershipPolicy)InstanceFactory.newInstance(
039                                    classLoader, PropsValues.USERS_MEMBERSHIP_POLICY);
040    
041                    _membershipPolicy = _originalMembershipPolicy;
042            }
043    
044            public MembershipPolicy getMembershipPolicy() {
045                    return _membershipPolicy;
046            }
047    
048            public void setMembershipPolicy(MembershipPolicy membershipPolicy) {
049                    if (_log.isDebugEnabled()) {
050                            _log.debug("Set " + ClassUtil.getClassName(membershipPolicy));
051                    }
052    
053                    if (membershipPolicy == null) {
054                            _membershipPolicy = _originalMembershipPolicy;
055                    }
056                    else {
057                            _membershipPolicy = membershipPolicy;
058                    }
059            }
060    
061            private static Log _log = LogFactoryUtil.getLog(
062                    MembershipPolicyFactory.class);
063    
064            private static volatile MembershipPolicy _membershipPolicy;
065            private static MembershipPolicy _originalMembershipPolicy;
066    
067    }