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/**
*
* Copyright 2003-2007 Jive Software, 2014-2022 Florian Schmaus
*
* 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.jingle.element;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smack.packet.IqBuilder;
import org.jivesoftware.smack.packet.IqData;
import org.jivesoftware.smack.packet.id.StandardStanzaIdSource;
import org.jivesoftware.smack.util.Objects;
import org.jivesoftware.smack.util.StringUtils;
import org.jxmpp.jid.FullJid;
/**
* The Jingle element.
*
*
*
* @author Florian Schmaus
*/
public final class Jingle extends IQ {
public static final String NAMESPACE = "urn:xmpp:jingle:1";
public static final String ACTION_ATTRIBUTE_NAME = "action";
public static final String INITIATOR_ATTRIBUTE_NAME = "initiator";
public static final String RESPONDER_ATTRIBUTE_NAME = "responder";
public static final String SESSION_ID_ATTRIBUTE_NAME = "sid";
public static final String ELEMENT = "jingle";
/**
* The session ID related to this session. The session ID is a unique identifier generated by the initiator. This
* should match the XML Nmtoken production so that XML character escaping is not needed for characters such as &.
*/
private final String sessionId;
/**
* The jingle action. This attribute is required.
*/
private final JingleAction action;
private final FullJid initiator;
private final FullJid responder;
private final JingleReason reason;
private final List contents;
private Jingle(Builder builder, String sessionId, JingleAction action, FullJid initiator, FullJid responder, JingleReason reason,
List contents) {
super(builder, ELEMENT, NAMESPACE);
this.sessionId = StringUtils.requireNotNullNorEmpty(sessionId, "Jingle session ID must not be null");
this.action = Objects.requireNonNull(action, "Jingle action must not be null");
this.initiator = initiator;
this.responder = responder;
this.reason = reason;
if (contents != null) {
this.contents = Collections.unmodifiableList(contents);
}
else {
this.contents = Collections.emptyList();
}
setType(Type.set);
}
/**
* Get the initiator. The initiator will be the full JID of the entity that has initiated the flow (which may be
* different to the "from" address in the IQ)
*
* @return the initiator
*/
public FullJid getInitiator() {
return initiator;
}
/**
* Get the responder. The responder is the full JID of the entity that has replied to the initiation (which may be
* different to the "to" address in the IQ).
*
* @return the responder
*/
public FullJid getResponder() {
return responder;
}
/**
* Returns the session ID related to the session. The session ID is a unique identifier generated by the initiator.
* This should match the XML Nmtoken production so that XML character escaping is not needed for characters such as
* &.
*
* @return Returns the session ID related to the session.
*/
public String getSid() {
return sessionId;
}
/**
* Get the action specified in the jingle IQ.
*
* @return the action.
*/
public JingleAction getAction() {
return action;
}
public JingleReason getReason() {
return reason;
}
/**
* Get a List of the contents.
*
* @return the contents.
*/
public List getContents() {
return contents;
}
/**
* Get the only jingle content if one exists, or null. This method will throw an
* {@link IllegalStateException} if there is more than one jingle content.
*
* @return a JingleContent instance or null.
* @throws IllegalStateException if there is more than one jingle content.
*/
public JingleContent getSoleContentOrThrow() {
if (contents.isEmpty()) {
return null;
}
if (contents.size() > 1) {
throw new IllegalStateException();
}
return contents.get(0);
}
@Override
protected IQChildElementXmlStringBuilder getIQChildElementBuilder(IQChildElementXmlStringBuilder xml) {
xml.optAttribute(INITIATOR_ATTRIBUTE_NAME, getInitiator());
xml.optAttribute(RESPONDER_ATTRIBUTE_NAME, getResponder());
xml.optAttribute(ACTION_ATTRIBUTE_NAME, getAction());
xml.optAttribute(SESSION_ID_ATTRIBUTE_NAME, getSid());
xml.rightAngleBracket();
xml.optElement(reason);
xml.append(contents);
return xml;
}
/**
* Deprecated, do not use.
*
* @return a builder.
* @deprecated use {@link #builder(XMPPConnection)} instead.
*/
@Deprecated
// TODO: Remove in Smack 4.6.
public static Builder getBuilder() {
return builder(StandardStanzaIdSource.DEFAULT.getNewStanzaId());
}
public static Builder builder(XMPPConnection connection) {
return new Builder(connection);
}
public static Builder builder(IqData iqData) {
return new Builder(iqData);
}
public static Builder builder(String stanzaId) {
return new Builder(stanzaId);
}
public static final class Builder extends IqBuilder {
private String sid;
private JingleAction action;
private FullJid initiator;
private FullJid responder;
private JingleReason reason;
private List contents;
Builder(IqData iqCommon) {
super(iqCommon);
}
Builder(XMPPConnection connection) {
super(connection);
}
Builder(String stanzaId) {
super(stanzaId);
}
public Builder setSessionId(String sessionId) {
StringUtils.requireNotNullNorEmpty(sessionId, "Session ID must not be null nor empty");
this.sid = sessionId;
return this;
}
public Builder setAction(JingleAction action) {
this.action = action;
return this;
}
public Builder setInitiator(FullJid initator) {
this.initiator = initator;
return this;
}
public Builder setResponder(FullJid responder) {
this.responder = responder;
return this;
}
public Builder addJingleContent(JingleContent content) {
if (contents == null) {
contents = new ArrayList<>(1);
}
contents.add(content);
return this;
}
public Builder setReason(JingleReason.Reason reason) {
this.reason = new JingleReason(reason);
return this;
}
public Builder setReason(JingleReason reason) {
this.reason = reason;
return this;
}
@Override
public Jingle build() {
return new Jingle(this, sid, action, initiator, responder, reason, contents);
}
@Override
public Builder getThis() {
return this;
}
}
}
