/*
    * 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 java.util.regex.Pattern;
  import java.util.regex.Matcher;
  
  /**
   * @author Christian Bauer
   */
  public class MANHeader extends UpnpHeader<String> {
  
      public static final Pattern PATTERN = Pattern.compile("\"(.+?)\"(;.+?)??");
      public static final Pattern NAMESPACE_PATTERN = Pattern.compile(";\\s?ns\\s?=\\s?([0-9]{2})");
  
      public String namespace;
  
      public MANHeader() {
      }
  
      public MANHeader(String value) {
          setValue(value);
      }
  
      public MANHeader(String value, String namespace) {
          this(value);
          this.namespace = namespace;
      }
  
      public void setString(String s) throws InvalidHeaderException {
  
          Matcher matcher = PATTERN.matcher(s);
          if (matcher.matches()) {
              setValue(matcher.group(1));
  
              if (matcher.group(2) != null) {
                  Matcher nsMatcher = NAMESPACE_PATTERN.matcher(matcher.group(2));
                  if (nsMatcher.matches()) {
                      setNamespace(nsMatcher.group(1));
                  } else {
                      throw new InvalidHeaderException("Invalid namespace in MAN header value: " + s);
                  }
              }
  
          } else {
              throw new InvalidHeaderException("Invalid MAN header value: " + s);
          }
      }
  
      public String getString() {
          if (getValue() == null) return null;
          StringBuilder s = new StringBuilder();
          s.append("\"").append(getValue()).append("\"");
          if (getNamespace() != null) s.append("; ns=").append(getNamespace());
          return s.toString();
      }
  
      public String getNamespace() {
          return namespace;
      }
  
      public void setNamespace(String namespace) {
          this.namespace = namespace;
      }
  }