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07da9ffb48
Returning a generic would allow for
List<ExtensionElement> list = stanza.getExtension("foo", "bar");
to compile (Note the we are calling getExtension(), not
getExtension*s*()).
Users are encouraged to use the type safe getExtension(Class<? extends
ExtensionElement) variant instead.
Fixes SMACK-825.
87 lines
2.5 KiB
Java
87 lines
2.5 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.sid.element;
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import javax.xml.namespace.QName;
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import org.jivesoftware.smack.packet.Message;
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import org.jivesoftware.smack.util.XmlStringBuilder;
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import org.jivesoftware.smackx.sid.StableUniqueStanzaIdManager;
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public class StanzaIdElement extends StableAndUniqueIdElement {
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public static final String ELEMENT = "stanza-id";
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public static final String NAMESPACE = StableUniqueStanzaIdManager.NAMESPACE;
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public static final QName QNAME = new QName(NAMESPACE, ELEMENT);
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public static final String ATTR_BY = "by";
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private final String by;
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public StanzaIdElement(String by) {
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super();
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this.by = by;
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}
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public StanzaIdElement(String id, String by) {
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super(id);
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this.by = by;
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}
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/**
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* Return true, if a message contains a stanza-id element.
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*
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* @param message message
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* @return true if message contains stanza-id element, otherwise false.
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*/
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public static boolean hasStanzaId(Message message) {
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return getStanzaId(message) != null;
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}
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/**
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* Return the stanza-id element of a message.
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*
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* @param message message
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* @return stanza-id element of a jid, or null if absent.
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*/
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public static StanzaIdElement getStanzaId(Message message) {
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return message.getExtension(StanzaIdElement.class);
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}
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public String getBy() {
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return by;
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}
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@Override
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public String getNamespace() {
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return StableUniqueStanzaIdManager.NAMESPACE;
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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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@Override
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public XmlStringBuilder toXML(org.jivesoftware.smack.packet.XmlEnvironment enclosingNamespace) {
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return new XmlStringBuilder(this)
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.attribute(ATTR_ID, getId())
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.attribute(ATTR_BY, getBy())
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.closeEmptyElement();
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}
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}
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