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.state.StateVariableValue;
  import org.fourthline.cling.model.message.StreamRequestMessage;
  import org.fourthline.cling.model.message.UpnpRequest;
  import org.fourthline.cling.model.message.header.ContentTypeHeader;
  import org.fourthline.cling.model.message.header.EventSequenceHeader;
  import org.fourthline.cling.model.message.header.NTEventHeader;
  import org.fourthline.cling.model.message.header.NTSHeader;
  import org.fourthline.cling.model.message.header.SubscriptionIdHeader;
  import org.fourthline.cling.model.message.header.UpnpHeader;
  import org.fourthline.cling.model.types.NotificationSubtype;
  import org.fourthline.cling.model.types.UnsignedIntegerFourBytes;
  import org.fourthline.cling.model.gena.GENASubscription;
  
  import java.net.URL;
  import java.util.Collection;
  
  /**
   * @author Christian Bauer
   */
  public class OutgoingEventRequestMessage extends StreamRequestMessage {
  
      final private Collection<StateVariableValue> stateVariableValues;
  
      public OutgoingEventRequestMessage(GENASubscription subscription,
                                         URL callbackURL,
                                         UnsignedIntegerFourBytes sequence,
                                         Collection<StateVariableValue> values) {
  
          super(new UpnpRequest(UpnpRequest.Method.NOTIFY, callbackURL));
  
          getHeaders().add(UpnpHeader.Type.CONTENT_TYPE, new ContentTypeHeader());
          getHeaders().add(UpnpHeader.Type.NT, new NTEventHeader());
          getHeaders().add(UpnpHeader.Type.NTS, new NTSHeader(NotificationSubtype.PROPCHANGE));
          getHeaders().add(UpnpHeader.Type.SID, new SubscriptionIdHeader(subscription.getSubscriptionId()));
  
          // Important! Pass by value so that we can safely increment it afterwards and before this is send!
          getHeaders().add(UpnpHeader.Type.SEQ, new EventSequenceHeader(sequence.getValue()));
  
          this.stateVariableValues = values;
      }
  
      public OutgoingEventRequestMessage(GENASubscription subscription, URL callbackURL) {
          this(subscription, callbackURL, subscription.getCurrentSequence(), subscription.getCurrentValues().values());
      }
  
      public Collection<StateVariableValue> getStateVariableValues() {
          return stateVariableValues;
      }
  }
  