| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.vysper.xmpp.stanza; |
| |
| import java.util.Map; |
| |
| import org.apache.vysper.xml.fragment.XMLElement; |
| import org.apache.vysper.xml.fragment.XMLSemanticError; |
| |
| /** |
| * presence stanza (publish/subscribe [aka "pub/sub"] or broadcast) |
| * |
| * @author The Apache MINA Project (dev@mina.apache.org) |
| */ |
| public class PresenceStanza extends XMPPCoreStanza { |
| public static final String NAME = "presence"; |
| |
| public static boolean isOfType(Stanza stanza) { |
| return isOfType(stanza, NAME); |
| } |
| |
| public PresenceStanza(Stanza stanza) { |
| super(stanza); |
| if (!PresenceStanza.isOfType(stanza)) |
| throw new IllegalArgumentException("only 'presence' stanza is allowed here"); |
| } |
| |
| @Override |
| public String getName() { |
| return NAME; |
| } |
| |
| public PresenceStanzaType getPresenceType() { |
| String type = getType(); |
| if (type == null) |
| return null; |
| return PresenceStanzaType.valueOfOrNull(type); |
| } |
| |
| /** |
| * show text must be from set {away, chat, dnd, xa} for not-extended namespaces |
| * @return |
| * @throws XMLSemanticError |
| */ |
| public String getShow() throws XMLSemanticError { |
| XMLElement element = getSingleInnerElementsNamed("show"); |
| if (element == null) |
| return null; // show is optional, see RFC3921/2.2.2.1 |
| return element.getSingleInnerText().getText(); |
| } |
| |
| /** |
| * |
| * @param lang |
| * @return |
| * @throws XMLSemanticError - if langauge attributes are not unique, RFC3921/2.2.2.2 |
| */ |
| public String getStatus(String lang) throws XMLSemanticError { |
| XMLElement element = getStatusMap().get(lang); |
| if (element == null) |
| return null; |
| return element.getSingleInnerText().getText(); |
| } |
| |
| /** |
| * @return all body elements, keyed by their lang attribute |
| * @throws XMLSemanticError |
| */ |
| public Map<String, XMLElement> getStatusMap() throws XMLSemanticError { |
| return getInnerElementsByXMLLangNamed("status"); |
| } |
| |
| public int getPriority() throws XMLSemanticError { |
| int priorityValue = 0; // priority default is 0, see RFC3921/2.2.2.3 |
| XMLElement element = getSingleInnerElementsNamed("priority"); |
| if (element != null) { // priority is optional, see RFC3921/2.2.2.3 |
| String priorityString = element.getSingleInnerText().getText(); |
| int intValue; |
| try { |
| intValue = Integer.parseInt(priorityString); |
| } catch (NumberFormatException e) { |
| throw new XMLSemanticError("presence priority must be an integer value in the -128 to 127 range", e); |
| } |
| if (intValue < -128 || intValue > 127) { |
| throw new XMLSemanticError("presence priority must be an integer value in the -128 to 127 range"); |
| } |
| priorityValue = intValue; |
| } |
| return priorityValue; |
| } |
| |
| public int getPrioritySafe() { |
| try { |
| return getPriority(); |
| } catch (XMLSemanticError xmlSemanticError) { |
| return 0; // default |
| } |
| } |
| } |