content: /*
   * Copyright (C) 2013 4th Line GmbH, Switzerland
   *
   * The contents of this file are subject to the terms of either the GNU
   * Lesser General Public License Version 2 or later ("LGPL") or the
   * Common Development and Distribution License Version 1 or later
   * ("CDDL") (collectively, the "License"). You may not use this file
   * except in compliance with the License. See LICENSE.txt for more
   * information.
   *
   * This program 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.
   */
  
  package org.fourthline.cling.model.message.gena;
  
  import org.fourthline.cling.model.gena.RemoteGENASubscription;
  import org.fourthline.cling.model.message.StreamRequestMessage;
  import org.fourthline.cling.model.message.UpnpHeaders;
  import org.fourthline.cling.model.message.UpnpRequest;
  import org.fourthline.cling.model.message.header.CallbackHeader;
  import org.fourthline.cling.model.message.header.NTEventHeader;
  import org.fourthline.cling.model.message.header.TimeoutHeader;
  import org.fourthline.cling.model.message.header.UpnpHeader;
  
  import java.net.URL;
  import java.util.List;
  
  /**
   * @author Christian Bauer
   */
  public class OutgoingSubscribeRequestMessage extends StreamRequestMessage {
  
      public OutgoingSubscribeRequestMessage(RemoteGENASubscription subscription,
                                             List<URL> callbackURLs,
                                             UpnpHeaders extraHeaders) {
  
          super(UpnpRequest.Method.SUBSCRIBE, subscription.getEventSubscriptionURL());
  
          getHeaders().add(
                  UpnpHeader.Type.CALLBACK,
                  new CallbackHeader(callbackURLs)
          );
  
          getHeaders().add(
                  UpnpHeader.Type.NT,
                  new NTEventHeader()
          );
  
          getHeaders().add(
                  UpnpHeader.Type.TIMEOUT,
                  new TimeoutHeader(subscription.getRequestedDurationSeconds())
          );
  
          if (extraHeaders != null)
              getHeaders().putAll(extraHeaders);
      }
  
      public boolean hasCallbackURLs() {
          CallbackHeader callbackHeader =
                  getHeaders().getFirstHeader(UpnpHeader.Type.CALLBACK, CallbackHeader.class);
          return callbackHeader.getValue().size() > 0;
      }
  
  }
  