001/** 002 * 003 * Copyright 2020 Aditya Borikar 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.softwareinfo; 018 019import java.util.Map; 020import java.util.WeakHashMap; 021 022import org.jivesoftware.smack.Manager; 023import org.jivesoftware.smack.SmackException.NoResponseException; 024import org.jivesoftware.smack.SmackException.NotConnectedException; 025import org.jivesoftware.smack.XMPPConnection; 026import org.jivesoftware.smack.XMPPException.XMPPErrorException; 027 028import org.jivesoftware.smackx.disco.ServiceDiscoveryManager; 029import org.jivesoftware.smackx.disco.packet.DiscoverInfo; 030import org.jivesoftware.smackx.softwareinfo.form.SoftwareInfoForm; 031import org.jivesoftware.smackx.xdata.packet.DataForm; 032 033import org.jxmpp.jid.Jid; 034 035/** 036* Entry point for Smack's API for XEP-0232: Software Information. 037* <br> 038* @see <a href="https://xmpp.org/extensions/xep-0232.html"> 039* XEP-0232 : Software Information. 040* </a> 041*/ 042public final class SoftwareInfoManager extends Manager { 043 044 private static final Map<XMPPConnection, SoftwareInfoManager> INSTANCES = new WeakHashMap<>(); 045 046 private final ServiceDiscoveryManager serviceDiscoveryManager; 047 048 public static synchronized SoftwareInfoManager getInstanceFor (XMPPConnection connection) { 049 SoftwareInfoManager manager = INSTANCES.get(connection); 050 if (manager == null) { 051 manager = new SoftwareInfoManager(connection); 052 INSTANCES.put(connection, manager); 053 } 054 return manager; 055 } 056 057 private SoftwareInfoManager(XMPPConnection connection) { 058 super(connection); 059 serviceDiscoveryManager = ServiceDiscoveryManager.getInstanceFor(connection); 060 } 061 062 /** 063 * Publishes the provided {@link SoftwareInfoForm} as an extended info. 064 * <br> 065 * @param softwareInfoForm form to be added as an extended info 066 */ 067 public void publishSoftwareInformationForm(SoftwareInfoForm softwareInfoForm) { 068 serviceDiscoveryManager.addExtendedInfo(softwareInfoForm.getDataForm()); 069 } 070 071 /** 072 * Get Software Information from the provided XMPP address. Returns <code>null</code> in case the queried entity does not announce that information. 073 * 074 * @param jid jid to get software information from 075 * @return {@link SoftwareInfoForm} Form containing software information or <code>null</code>. 076 * @throws NoResponseException if there was no response from the remote entity 077 * @throws XMPPErrorException if there was an XMPP error returned 078 * @throws NotConnectedException if the XMPP connection is not connected 079 * @throws InterruptedException if the calling thread was interrupted 080 */ 081 public SoftwareInfoForm fromJid(Jid jid) throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException { 082 DiscoverInfo discoverInfo = serviceDiscoveryManager.discoverInfo(jid); 083 DataForm dataForm = DataForm.from(discoverInfo, SoftwareInfoForm.FORM_TYPE); 084 if (dataForm == null) { 085 return null; 086 } 087 return SoftwareInfoForm.getBuilder() 088 .setDataForm(dataForm) 089 .build(); 090 } 091}