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