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.smackx.csi; 018 019import org.jivesoftware.smack.SmackException.NotConnectedException; 020import org.jivesoftware.smack.XMPPConnection; 021import org.jivesoftware.smackx.csi.packet.ClientStateIndication; 022 023/** 024 * Manager for Client State Indication. 025 * 026 * @see <a href="http://xmpp.org/extensions/xep-0352.html">XEP-0352: Client State Indication</a> 027 * 028 */ 029public class ClientStateIndicationManager { 030 031 public static void active(XMPPConnection connection) throws NotConnectedException, InterruptedException { 032 throwIaeIfNotSupported(connection); 033 connection.sendNonza(ClientStateIndication.Active.INSTANCE); 034 } 035 036 public static void inactive(XMPPConnection connection) throws NotConnectedException, InterruptedException { 037 throwIaeIfNotSupported(connection); 038 connection.sendNonza(ClientStateIndication.Inactive.INSTANCE); 039 } 040 041 public static boolean isSupported(XMPPConnection connection) { 042 return connection.hasFeature(ClientStateIndication.Feature.ELEMENT, ClientStateIndication.NAMESPACE); 043 } 044 045 private static void throwIaeIfNotSupported(XMPPConnection connection) { 046 if (!isSupported(connection)) { 047 throw new IllegalArgumentException("Client State Indication not supported by server"); 048 } 049 } 050}