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WebRTC one to one video call with recording and filtering
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/*
 * (C) Copyright 2014 Kurento (http://kurento.org/)
 *
 * 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.kurento.tutorial.one2onecalladv;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.kurento.client.IceCandidate;
import org.kurento.client.WebRtcEndpoint;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.socket.TextMessage;
import org.springframework.web.socket.WebSocketSession;

import com.google.gson.JsonObject;

/**
 * User session.
 *
 * @author Boni Garcia ([email protected])
 * @author Micael Gallego ([email protected])
 * @since 5.0.0
 */
public class UserSession {

  private static final Logger log = LoggerFactory.getLogger(UserSession.class);

  private final String name;
  private final WebSocketSession session;

  private String sdpOffer;
  private String callingTo;
  private String callingFrom;
  private WebRtcEndpoint webRtcEndpoint;
  private WebRtcEndpoint playingWebRtcEndpoint;
  private final List candidateList = new ArrayList<>();

  public UserSession(WebSocketSession session, String name) {
    this.session = session;
    this.name = name;
  }

  public WebSocketSession getSession() {
    return session;
  }

  public String getName() {
    return name;
  }

  public String getSdpOffer() {
    return sdpOffer;
  }

  public void setSdpOffer(String sdpOffer) {
    this.sdpOffer = sdpOffer;
  }

  public String getCallingTo() {
    return callingTo;
  }

  public void setCallingTo(String callingTo) {
    this.callingTo = callingTo;
  }

  public String getCallingFrom() {
    return callingFrom;
  }

  public void setCallingFrom(String callingFrom) {
    this.callingFrom = callingFrom;
  }

  public void sendMessage(JsonObject message) throws IOException {
    log.debug("Sending message from user '{}': {}", name, message);
    session.sendMessage(new TextMessage(message.toString()));
  }

  public String getSessionId() {
    return session.getId();
  }

  public void setWebRtcEndpoint(WebRtcEndpoint webRtcEndpoint) {
    this.webRtcEndpoint = webRtcEndpoint;

    if (this.webRtcEndpoint != null) {
      for (IceCandidate e : candidateList) {
        this.webRtcEndpoint.addIceCandidate(e);
      }
      this.candidateList.clear();
    }
  }

  public void addCandidate(IceCandidate candidate) {
    if (this.webRtcEndpoint != null) {
      this.webRtcEndpoint.addIceCandidate(candidate);
    } else {
      candidateList.add(candidate);
    }

    if (this.playingWebRtcEndpoint != null) {
      this.playingWebRtcEndpoint.addIceCandidate(candidate);
    }
  }

  public WebRtcEndpoint getPlayingWebRtcEndpoint() {
    return playingWebRtcEndpoint;
  }

  public void setPlayingWebRtcEndpoint(WebRtcEndpoint playingWebRtcEndpoint) {
    this.playingWebRtcEndpoint = playingWebRtcEndpoint;
  }

  public void clear() {
    this.webRtcEndpoint = null;
    this.candidateList.clear();
  }
}