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.portlet.usergroupsadmin.search;
016    
017    import com.liferay.portal.kernel.dao.search.RowChecker;
018    import com.liferay.portal.kernel.log.Log;
019    import com.liferay.portal.kernel.log.LogFactoryUtil;
020    import com.liferay.portal.model.Group;
021    import com.liferay.portal.model.User;
022    import com.liferay.portal.security.permission.PermissionChecker;
023    import com.liferay.portal.security.permission.PermissionThreadLocal;
024    import com.liferay.portal.service.UserLocalServiceUtil;
025    import com.liferay.portal.service.permission.UserPermissionUtil;
026    
027    import javax.portlet.RenderResponse;
028    
029    /**
030     * @author Brian Wing Shun Chan
031     */
032    public class UserGroupChecker extends RowChecker {
033    
034            public UserGroupChecker(RenderResponse renderResponse, Group group) {
035                    super(renderResponse);
036    
037                    _group = group;
038            }
039    
040            @Override
041            public boolean isChecked(Object obj) {
042                    User user = null;
043    
044                    if (obj instanceof User) {
045                            user = (User)obj;
046                    }
047                    else if (obj instanceof Object[]) {
048                            user = (User)((Object[])obj)[0];
049                    }
050                    else {
051                            throw new IllegalArgumentException(obj + " is not a User");
052                    }
053    
054                    try {
055                            return UserLocalServiceUtil.hasGroupUser(
056                                    _group.getGroupId(), user.getUserId());
057                    }
058                    catch (Exception e) {
059                            _log.error(e, e);
060    
061                            return false;
062                    }
063            }
064    
065            @Override
066            public boolean isDisabled(Object obj) {
067                    User user = (User)obj;
068    
069                    PermissionChecker permissionChecker =
070                            PermissionThreadLocal.getPermissionChecker();
071    
072                    try {
073                            if (UserPermissionUtil.hasMembershipProtected(
074                                            permissionChecker, _group, user)) {
075    
076                                    return true;
077                            }
078                    }
079                    catch (Exception e) {
080                            _log.error(e, e);
081                    }
082    
083                    return super.isDisabled(obj);
084            }
085    
086            private static Log _log = LogFactoryUtil.getLog(UserGroupChecker.class);
087    
088            private Group _group;
089    
090    }