org.kurento.tutorial.helloworld.HelloWorldController.java Source code

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Here is the source code for org.kurento.tutorial.helloworld.HelloWorldController.java

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/*
 * (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 org.kurento.tutorial.helloworld;

import java.util.concurrent.CountDownLatch;

import org.kurento.client.EventListener;
import org.kurento.client.KurentoClient;
import org.kurento.client.MediaPipeline;
import org.kurento.client.OnIceGatheringDoneEvent;
import org.kurento.client.WebRtcEndpoint;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

/**
 * Hello World REST Controller (application logic).
 * 
 * @author Boni Garcia (bgarcia@gsyc.es)
 * @author David Fernandez (d.fernandezlop@gmail.com)
 * @since 6.0.0-SNAPSHOT
 */
@RestController
public class HelloWorldController {

    @Autowired
    private KurentoClient kurento;

    @RequestMapping(value = "/helloworld", method = RequestMethod.POST)
    private String processRequest(@RequestBody String sdpOffer) {

        final CountDownLatch eventReceived = new CountDownLatch(1);
        // Media Logic
        MediaPipeline pipeline = kurento.createMediaPipeline();
        WebRtcEndpoint webRtcEndpoint = new WebRtcEndpoint.Builder(pipeline).build();
        webRtcEndpoint.addOnIceGatheringDoneListener(new EventListener<OnIceGatheringDoneEvent>() {
            @Override
            public void onEvent(OnIceGatheringDoneEvent event) {
                eventReceived.countDown();
            }
        });

        webRtcEndpoint.connect(webRtcEndpoint);
        webRtcEndpoint.processOffer(sdpOffer);
        webRtcEndpoint.gatherCandidates();

        try {
            eventReceived.await();
        } catch (InterruptedException e) {

        }
        // SDP negotiation (offer and answer)
        String responseSdp = webRtcEndpoint.getLocalSessionDescriptor();
        return responseSdp;
    }

}