JsonPacketExtension.java

  1. /**
  2.  *
  3.  * Copyright © 2014-2020 Florian Schmaus
  4.  *
  5.  * Licensed under the Apache License, Version 2.0 (the "License");
  6.  * you may not use this file except in compliance with the License.
  7.  * You may obtain a copy of the License at
  8.  *
  9.  *     http://www.apache.org/licenses/LICENSE-2.0
  10.  *
  11.  * Unless required by applicable law or agreed to in writing, software
  12.  * distributed under the License is distributed on an "AS IS" BASIS,
  13.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14.  * See the License for the specific language governing permissions and
  15.  * limitations under the License.
  16.  */
  17. package org.jivesoftware.smackx.json.packet;

  18. import javax.xml.namespace.QName;

  19. import org.jivesoftware.smack.packet.Stanza;

  20. /**
  21.  * XMPP JSON Containers as defined in XEP-0335.
  22.  *
  23.  * @see <a href="http://xmpp.org/extensions/xep-0335.html">XEP-0335: JSON Containers</a>
  24.  */
  25. public class JsonPacketExtension extends AbstractJsonPacketExtension {

  26.     public static final String ELEMENT = "json";
  27.     public static final String NAMESPACE = "urn:xmpp:json:0";
  28.     public static final QName QNAME = new QName(NAMESPACE, ELEMENT);

  29.     public JsonPacketExtension(String json) {
  30.         super(json);
  31.     }

  32.     @Override
  33.     public String getNamespace() {
  34.         return NAMESPACE;
  35.     }

  36.     @Override
  37.     public String getElementName() {
  38.         return ELEMENT;
  39.     }

  40.     /**
  41.      * Retrieve the JSON stanza extension from the packet.
  42.      *
  43.      * @param packet TODO javadoc me please
  44.      * @return the JSON stanza extension or null.
  45.      */
  46.     public static JsonPacketExtension from(Stanza packet) {
  47.         return packet.getExtension(JsonPacketExtension.class);
  48.     }
  49. }