001    /**
002     * Copyright (c) 2000-2013 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.membershippolicy;
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 UserGroupMembershipPolicyFactoryImpl
029            implements UserGroupMembershipPolicyFactory {
030    
031            public void afterPropertiesSet() throws Exception {
032                    if (_log.isDebugEnabled()) {
033                            _log.debug(
034                                    "Instantiate " + PropsValues.MEMBERSHIP_POLICY_USER_GROUPS);
035                    }
036    
037                    ClassLoader classLoader = ClassLoaderUtil.getPortalClassLoader();
038    
039                    _originalUserGroupMembershipPolicy =
040                            (UserGroupMembershipPolicy)InstanceFactory.newInstance(
041                                    classLoader, PropsValues.MEMBERSHIP_POLICY_USER_GROUPS);
042    
043                    _userGroupMembershipPolicy = _originalUserGroupMembershipPolicy;
044            }
045    
046            public UserGroupMembershipPolicy getUserGroupMembershipPolicy() {
047                    return _userGroupMembershipPolicy;
048            }
049    
050            public void setUserGroupMembershipPolicy(
051                    UserGroupMembershipPolicy userGroupMembershipPolicy) {
052    
053                    if (_log.isDebugEnabled()) {
054                            _log.debug(
055                                    "Set " + ClassUtil.getClassName(userGroupMembershipPolicy));
056                    }
057    
058                    if (userGroupMembershipPolicy == null) {
059                            _userGroupMembershipPolicy = _originalUserGroupMembershipPolicy;
060                    }
061                    else {
062                            _userGroupMembershipPolicy = userGroupMembershipPolicy;
063                    }
064            }
065    
066            private static Log _log = LogFactoryUtil.getLog(
067                    UserGroupMembershipPolicyFactory.class);
068    
069            private static UserGroupMembershipPolicy _originalUserGroupMembershipPolicy;
070            private static volatile UserGroupMembershipPolicy
071                    _userGroupMembershipPolicy;
072    
073    }