001/** 002 * 003 * Copyright © 2016 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.iot.provisioning.element; 018 019import org.jivesoftware.smack.packet.ExtensionElement; 020import org.jivesoftware.smack.packet.Message; 021import org.jivesoftware.smack.util.Objects; 022import org.jivesoftware.smack.util.XmlStringBuilder; 023 024import org.jxmpp.jid.BareJid; 025 026public class Friend implements ExtensionElement { 027 028 public static final String ELEMENT = "friend"; 029 public static final String NAMESPACE = Constants.IOT_PROVISIONING_NAMESPACE; 030 031 private final BareJid friend; 032 033 public Friend(BareJid friend) { 034 this.friend = Objects.requireNonNull(friend, "Friend must not be null"); 035 } 036 037 @Override 038 public String getElementName() { 039 return ELEMENT; 040 } 041 042 @Override 043 public String getNamespace() { 044 return NAMESPACE; 045 } 046 047 @Override 048 public XmlStringBuilder toXML(String enclosingNamespace) { 049 XmlStringBuilder xml = new XmlStringBuilder(this); 050 xml.attribute("jid", friend); 051 xml.closeEmptyElement(); 052 return xml; 053 } 054 055 public BareJid getFriend() { 056 return friend; 057 } 058 059 public static Friend from(Message message) { 060 return message.getExtension(ELEMENT, NAMESPACE); 061 } 062}