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.meta.RemoteService;
  import org.fourthline.cling.model.state.StateVariableValue;
  import org.fourthline.cling.model.message.StreamRequestMessage;
  import org.fourthline.cling.model.message.header.UpnpHeader;
  import org.fourthline.cling.model.message.header.SubscriptionIdHeader;
  import org.fourthline.cling.model.message.header.NTEventHeader;
  import org.fourthline.cling.model.message.header.NTSHeader;
  import org.fourthline.cling.model.message.header.EventSequenceHeader;
  import org.fourthline.cling.model.types.NotificationSubtype;
  import org.fourthline.cling.model.types.UnsignedIntegerFourBytes;
  
  import java.util.List;
  import java.util.ArrayList;
  
  /**
   * @author Christian Bauer
   */
  public class IncomingEventRequestMessage extends StreamRequestMessage {
  
      final private List<StateVariableValue> stateVariableValues = new ArrayList<>();
      final private RemoteService service;
  
      public IncomingEventRequestMessage(StreamRequestMessage source, RemoteService service) {
          super(source);
          this.service = service;
      }
  
      public RemoteService getService() {
          return service;
      }
  
      public List<StateVariableValue> getStateVariableValues() {
          return stateVariableValues;
      }
  
      public String getSubscrptionId() {
          SubscriptionIdHeader header =
                  getHeaders().getFirstHeader(UpnpHeader.Type.SID,SubscriptionIdHeader.class);
          return header != null ? header.getValue() : null;
      }
  
      public UnsignedIntegerFourBytes getSequence() {
          EventSequenceHeader header = getHeaders().getFirstHeader(UpnpHeader.Type.SEQ, EventSequenceHeader.class);
          return header != null ? header.getValue() : null;
      }
  
      /**
       * @return <code>true</code> if this message as an NT and NTS header.
       */
      public boolean hasNotificationHeaders() {
          UpnpHeader ntHeader = getHeaders().getFirstHeader(UpnpHeader.Type.NT);
          UpnpHeader ntsHeader = getHeaders().getFirstHeader(UpnpHeader.Type.NTS);
          return ntHeader != null && ntHeader.getValue() != null
                  && ntsHeader != null && ntsHeader.getValue() != null;
      }
  
      /**
       * @return <code>true</code> if this message has an NT header, and NTS header
       *         with value {@link org.fourthline.cling.model.types.NotificationSubtype#PROPCHANGE}.
       */
      public boolean hasValidNotificationHeaders() {
          NTEventHeader ntHeader = getHeaders().getFirstHeader(UpnpHeader.Type.NT, NTEventHeader.class);
          NTSHeader ntsHeader = getHeaders().getFirstHeader(UpnpHeader.Type.NTS, NTSHeader.class);
          return ntHeader != null && ntHeader.getValue() != null
                  && ntsHeader != null && ntsHeader.getValue().equals(NotificationSubtype.PROPCHANGE);
  
      }
  
      @Override
      public String toString() {
          return super.toString() + " SEQUENCE: " + getSequence().getValue();
      }
  }
  