ChatService.java

/**
 *   GRANITE DATA SERVICES
 *   Copyright (C) 2006-2015 GRANITE DATA SERVICES S.A.S.
 *
 *   This file is part of the Granite Data Services Platform.
 *
 *                               ***
 *
 *   Community License: GPL 3.0
 *
 *   This file is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published
 *   by the Free Software Foundation, either version 3 of the License,
 *   or (at your option) any later version.
 *
 *   This file 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 General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program. If not, see <http://www.gnu.org/licenses/>.
 *
 *                               ***
 *
 *   Available Commercial License: GraniteDS SLA 1.0
 *
 *   This is the appropriate option if you are creating proprietary
 *   applications and you are not prepared to distribute and share the
 *   source code of your application under the GPL v3 license.
 *
 *   Please visit http://www.granitedataservices.com/license for more
 *   details.
 */
package org.granite.client.test.tide.server.chat;

import org.granite.context.GraniteContext;
import org.granite.gravity.Gravity;
import org.granite.gravity.GravityManager;
import org.granite.messaging.service.annotations.RemoteDestination;
import org.granite.messaging.webapp.HttpGraniteContext;

import java.security.Principal;
import java.util.HashSet;
import java.util.Set;

/**
 * Created by william on 13/02/14.
 */
@RemoteDestination(id="chatService")
public class ChatService {

    public Set<String> getConnectedUsers() {
        HttpGraniteContext graniteContext = (HttpGraniteContext)GraniteContext.getCurrentInstance();
        Gravity gravity = GravityManager.getGravity(graniteContext.getServletContext());
        Set<String> users = new HashSet<String>();
        for (Principal principal : gravity.getConnectedUsers())
            users.add(principal.getName());
        return users;
    }
}