/*
    * 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.header;
  
  import org.fourthline.cling.model.UserConstants;
  
  import java.util.regex.Pattern;
  import java.util.regex.Matcher;
  
  /**
   * @author Christian Bauer
   */
  public class TimeoutHeader extends UpnpHeader<Integer> {
  
      // It's probably OK to assume that "infinite" means 4000 years?
      public static final Integer INFINITE_VALUE = Integer.MAX_VALUE;
  
      public static final Pattern PATTERN = Pattern.compile("Second-(?:([0-9]+)|infinite)");
  
      /**
       * Defaults to {@link org.fourthline.cling.model.UserConstants#DEFAULT_SUBSCRIPTION_DURATION_SECONDS}.
       */
      public TimeoutHeader() {
          setValue(UserConstants.DEFAULT_SUBSCRIPTION_DURATION_SECONDS);
      }
  
      public TimeoutHeader(int timeoutSeconds) {
          setValue(timeoutSeconds);
      }
  
      public TimeoutHeader(Integer timeoutSeconds) {
          setValue(timeoutSeconds);
      }
  
      public void setString(String s) throws InvalidHeaderException {
  
          Matcher matcher = PATTERN.matcher(s);
          if (!matcher.matches()) {
              throw new InvalidHeaderException("Can't parse timeout seconds integer from: " + s);
          }
  
          if (matcher.group(1) != null) {
              setValue(Integer.parseInt(matcher.group(1)));
          } else {
              setValue(INFINITE_VALUE);
          }
  
      }
  
      public String getString() {
          return "Second-" + (getValue().equals(INFINITE_VALUE) ? "infinite" : getValue());
      }
  }