IdleElement.java
- /**
- *
- * Copyright © 2018 Paul Schaub
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- package org.jivesoftware.smackx.last_interaction.element;
- import java.util.Date;
- import javax.xml.namespace.QName;
- import org.jivesoftware.smack.packet.ExtensionElement;
- import org.jivesoftware.smack.packet.Presence;
- import org.jivesoftware.smack.util.Objects;
- import org.jivesoftware.smack.util.XmlStringBuilder;
- public class IdleElement implements ExtensionElement {
- public static final String NAMESPACE = "urn:xmpp:idle:1";
- public static final String ELEMENT = "idle";
- public static final QName QNAME = new QName(NAMESPACE, ELEMENT);
- public static final String ATTR_SINCE = "since";
- private final Date since;
- /**
- * Create a new IdleElement with the current date as date of last user interaction.
- */
- public IdleElement() {
- this(new Date());
- }
- /**
- * Create a new IdleElement.
- * @param since date of last user interaction
- */
- public IdleElement(Date since) {
- this.since = Objects.requireNonNull(since);
- }
- /**
- * Return the value of last user interaction.
- * @return date of last interaction
- */
- public Date getSince() {
- return since;
- }
- /**
- * Add an Idle element with current date to the presence.
- * @param presence presence
- */
- public static void addToPresence(Presence presence) {
- presence.addExtension(new IdleElement());
- }
- /**
- * Return the IdleElement from a presence.
- * Returns null, if no IdleElement found.
- *
- * @param presence presence
- * @return idleElement from presence or null
- */
- public static IdleElement fromPresence(Presence presence) {
- return presence.getExtension(IdleElement.class);
- }
- /**
- * {@inheritDoc}
- */
- @Override
- public String getNamespace() {
- return NAMESPACE;
- }
- /**
- * {@inheritDoc}
- */
- @Override
- public String getElementName() {
- return ELEMENT;
- }
- /**
- * {@inheritDoc}
- */
- @Override
- public XmlStringBuilder toXML(org.jivesoftware.smack.packet.XmlEnvironment enclosingNamespace) {
- return new XmlStringBuilder(this)
- .attribute(ATTR_SINCE, since)
- .closeEmptyElement();
- }
- }