com.liferay.portlet.usergroupsadmin.action.EditUserGroupAssignmentsAction.java Source code

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Here is the source code for com.liferay.portlet.usergroupsadmin.action.EditUserGroupAssignmentsAction.java

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/**
 * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.portlet.usergroupsadmin.action;

import com.liferay.portal.NoSuchUserGroupException;
import com.liferay.portal.kernel.servlet.SessionErrors;
import com.liferay.portal.kernel.util.Constants;
import com.liferay.portal.kernel.util.ParamUtil;
import com.liferay.portal.kernel.util.StringUtil;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.portal.security.auth.PrincipalException;
import com.liferay.portal.service.UserServiceUtil;
import com.liferay.portal.struts.PortletAction;

import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.PortletConfig;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

/**
 * @author Charles May
 */
public class EditUserGroupAssignmentsAction extends PortletAction {

    @Override
    public void processAction(ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
            ActionRequest actionRequest, ActionResponse actionResponse) throws Exception {

        String cmd = ParamUtil.getString(actionRequest, Constants.CMD);

        try {
            if (cmd.equals("user_group_users")) {
                updateUserGroupUsers(actionRequest);
            }

            if (Validator.isNotNull(cmd)) {
                String redirect = ParamUtil.getString(actionRequest, "assignmentsRedirect");

                sendRedirect(actionRequest, actionResponse, redirect);
            }
        } catch (Exception e) {
            if (e instanceof NoSuchUserGroupException || e instanceof PrincipalException) {

                SessionErrors.add(actionRequest, e.getClass().getName());

                setForward(actionRequest, "portlet.user_groups_admin.error");
            } else {
                throw e;
            }
        }
    }

    @Override
    public ActionForward render(ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
            RenderRequest renderRequest, RenderResponse renderResponse) throws Exception {

        try {
            ActionUtil.getUserGroup(renderRequest);
        } catch (Exception e) {
            if (e instanceof NoSuchUserGroupException || e instanceof PrincipalException) {

                SessionErrors.add(renderRequest, e.getClass().getName());

                return mapping.findForward("portlet.user_groups_admin.error");
            } else {
                throw e;
            }
        }

        return mapping
                .findForward(getForward(renderRequest, "portlet.user_groups_admin.edit_user_group_assignments"));
    }

    protected void updateUserGroupUsers(ActionRequest actionRequest) throws Exception {

        long userGroupId = ParamUtil.getLong(actionRequest, "userGroupId");

        long[] addUserIds = StringUtil.split(ParamUtil.getString(actionRequest, "addUserIds"), 0L);
        long[] removeUserIds = StringUtil.split(ParamUtil.getString(actionRequest, "removeUserIds"), 0L);

        UserServiceUtil.addUserGroupUsers(userGroupId, addUserIds);
        UserServiceUtil.unsetUserGroupUsers(userGroupId, removeUserIds);
    }

}