Smack/smack-experimental/src/main/java/org/jivesoftware/smackx/jingle_filetransfer/JingleFileTransferManager.java

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/**
*
* Copyright 2017 Paul Schaub
*
* 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_filetransfer;
import java.util.WeakHashMap;
import org.jivesoftware.smack.Manager;
import org.jivesoftware.smack.XMPPConnection;
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import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smackx.disco.ServiceDiscoveryManager;
import org.jivesoftware.smackx.jingle.JingleHandler;
import org.jivesoftware.smackx.jingle.JingleManager;
import org.jivesoftware.smackx.jingle.Role;
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import org.jivesoftware.smackx.jingle.element.Jingle;
import org.jivesoftware.smackx.jingle.element.JingleAction;
import org.jivesoftware.smackx.jingle.element.JingleContent;
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import org.jivesoftware.smackx.jingle_filetransfer.element.JingleFileTransfer;
import org.jxmpp.jid.FullJid;
/**
* Manager for JingleFileTransfer (XEP-0234).
*/
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public final class JingleFileTransferManager extends Manager implements JingleHandler {
private static final WeakHashMap<XMPPConnection, JingleFileTransferManager> INSTANCES = new WeakHashMap<>();
private JingleFileTransferManager(XMPPConnection connection) {
super(connection);
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ServiceDiscoveryManager.getInstanceFor(connection).addFeature(JingleFileTransfer.NAMESPACE_V5);
JingleManager jingleManager = JingleManager.getInstanceFor(connection);
jingleManager.registerDescriptionHandler(JingleFileTransfer.NAMESPACE_V5, this);
}
public static JingleFileTransferManager getInstanceFor(XMPPConnection connection) {
JingleFileTransferManager manager = INSTANCES.get(connection);
if (manager == null) {
manager = new JingleFileTransferManager(connection);
INSTANCES.put(connection, manager);
}
return manager;
}
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@Override
public IQ handleJingleRequest(Jingle jingle) {
FullJid fullJid = jingle.getFrom().asFullJidOrThrow();
String sid = jingle.getSid();
JingleFileTransferSession handler = createSession(jingle);
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JingleManager.getInstanceFor(connection()).registerJingleSessionHandler(fullJid, sid, handler);
return handler.handleJingleSessionRequest(jingle);
}
private JingleFileTransferSession createSession(Jingle request) {
if (request.getAction() != JingleAction.session_initiate) {
throw new IllegalArgumentException("Requests action MUST be session-initiate.");
}
JingleContent content = request.getContents().get(0);
if (content.getSenders() == JingleContent.Senders.initiator) {
return new JingleFileOffer(request.getInitiator(), request.getResponder(), Role.responder, request.getSid());
} else if (content.getSenders() == JingleContent.Senders.responder) {
return new JingleFileRequest(request.getInitiator(), request.getResponder(), Role.responder, request.getSid());
} else {
throw new IllegalArgumentException("Requests content.senders MUST be either responder or initiator.");
}
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}
}