001/**
002 *
003 * Copyright 2014 Florian Schmaus
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.jivesoftware.smack;
018
019import java.lang.ref.WeakReference;
020import java.util.concurrent.ScheduledFuture;
021import java.util.concurrent.TimeUnit;
022
023public abstract class Manager {
024
025    final WeakReference<XMPPConnection> weakConnection;
026
027    public Manager(XMPPConnection connection) {
028        weakConnection = new WeakReference<XMPPConnection>(connection);
029    }
030
031    protected final XMPPConnection connection() {
032        return weakConnection.get();
033    }
034
035    protected ScheduledFuture<?> schedule(Runnable command, long delay, TimeUnit unit) {
036        return connection().schedule(command, delay, unit);
037    }
038}