/*
* (C) Copyright 2014 Kurento (http://kurento.org/)
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Lesser General Public License
* (LGPL) version 2.1 which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/lgpl-2.1.html
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
*/
package com.kurento.kmf.composite;
import java.io.IOException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import com.google.gson.JsonObject;
import com.kurento.kmf.jsonrpcconnector.DefaultJsonRpcHandler;
import com.kurento.kmf.jsonrpcconnector.Session;
import com.kurento.kmf.jsonrpcconnector.Transaction;
import com.kurento.kmf.jsonrpcconnector.internal.message.Request;
import com.kurento.kmf.media.HubPort;
import com.kurento.kmf.media.WebRtcEndpoint;
/**
* Composite WebRTC handler (application logic).
*
* @author Boni Garcia (bgarcia@gsyc.es)
* @author David Fernández-López (d.fernandezlop@gmail.com)
* @since 4.2.3
*/
public class WebRtcHandler extends DefaultJsonRpcHandler<JsonObject> {
private final Logger log = LoggerFactory.getLogger(WebRtcHandler.class);
@Autowired
private Room room;
private Session session;
@Override
public void afterConnectionEstablished(Session session) throws Exception {
this.session = session;
}
@Override
public void handleRequest(Transaction transaction,
Request<JsonObject> request) throws Exception {
JsonObject params = request.getParams();
log.debug("new petition " + request.getMethod());
switch (request.getMethod()) {
case "start":
log.debug("START");
call(transaction, params);
break;
case "stop":
log.debug("STOP");
outCall(transaction, params);
break;
default:
break;
}
}
private void call(Transaction transaction, JsonObject params)
throws IOException {
// SDP Offer
String sdpOffer = params.get("sdpOffer").getAsString();
log.debug("Received SDP offer");
// Media Logic
WebRtcEndpoint webRtcEndpoint = room.getPipeline().newWebRtcEndpoint()
.build();
HubPort port = room.getComposite().newHubPort().build();
webRtcEndpoint.connect(port);
port.connect(webRtcEndpoint);
room.joinParticipant(session, webRtcEndpoint, port);
// SDP Answer
String sdpAnswer = webRtcEndpoint.processOffer(sdpOffer);
JsonObject scParams = new JsonObject();
scParams.addProperty("sdpAnswer", sdpAnswer);
transaction.sendResponse(scParams);
}
private void outCall(Transaction transaction, JsonObject params)
throws IOException {
room.removeParticipant(session);
}
}