001/** 002 * 003 * Copyright 2018 Paul Schaub 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.smackx.spoiler; 018 019import java.util.Map; 020import java.util.WeakHashMap; 021 022import org.jivesoftware.smack.Manager; 023import org.jivesoftware.smack.XMPPConnection; 024import org.jivesoftware.smackx.disco.ServiceDiscoveryManager; 025 026public final class SpoilerManager extends Manager { 027 028 public static final String NAMESPACE_0 = "urn:xmpp:spoiler:0"; 029 030 private static final Map<XMPPConnection, SpoilerManager> INSTANCES = new WeakHashMap<>(); 031 032 private final ServiceDiscoveryManager serviceDiscoveryManager; 033 034 /** 035 * Create a new SpoilerManager and add Spoiler to disco features. 036 * 037 * @param connection xmpp connection 038 */ 039 private SpoilerManager(XMPPConnection connection) { 040 super(connection); 041 serviceDiscoveryManager = ServiceDiscoveryManager.getInstanceFor(connection); 042 } 043 044 /** 045 * Begin announcing support for Spoiler messages. 046 */ 047 public void startAnnounceSupport() { 048 serviceDiscoveryManager.addFeature(NAMESPACE_0); 049 } 050 051 /** 052 * End announcing support for Spoiler messages. 053 */ 054 public void stopAnnounceSupport() { 055 serviceDiscoveryManager.removeFeature(NAMESPACE_0); 056 } 057 058 /** 059 * Return the connections instance of the SpoilerManager. 060 * 061 * @param connection xmpp connection 062 * @return SpoilerManager 063 */ 064 public static SpoilerManager getInstanceFor(XMPPConnection connection) { 065 SpoilerManager manager = INSTANCES.get(connection); 066 if (manager == null) { 067 manager = new SpoilerManager(connection); 068 INSTANCES.put(connection, manager); 069 } 070 return manager; 071 } 072}