/*
    * 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.support.model.dlna;
  
  import java.util.EnumSet;
  import java.util.Locale;
  
  /**
   * @author Mario Franco
   */
  public class DLNAFlagsAttribute extends DLNAAttribute<EnumSet<DLNAFlags>> {
  
      public DLNAFlagsAttribute() {
          setValue(EnumSet.noneOf(DLNAFlags.class));
      }
  
      public DLNAFlagsAttribute(DLNAFlags... flags) {
          if (flags != null && flags.length > 0) {
              DLNAFlags first = flags[0];
              if (flags.length > 1) {
                  System.arraycopy(flags, 1, flags, 0, flags.length - 1);
                  setValue(EnumSet.of(first, flags));
              } else {
                  setValue(EnumSet.of(first));
              }
          }
      }
  
      public void setString(String s, String cf) throws InvalidDLNAProtocolAttributeException {
          EnumSet<DLNAFlags> value = EnumSet.noneOf(DLNAFlags.class);
          try {
              int parseInt = Integer.parseInt(s.substring(0, s.length() - 24), 16);
              for (DLNAFlags op : DLNAFlags.values()) {
                  int code = op.getCode() & parseInt;
                  if (op.getCode() == code) {
                      value.add(op);
                  }
              }
          } catch (Exception e) {
          }
  
          if (value.isEmpty())
              throw new InvalidDLNAProtocolAttributeException("Can't parse DLNA flags integer from: " + s);
  
          setValue(value);
      }
  
      public String getString() {
          int code = 0;
          for (DLNAFlags op : getValue()) {
              code |= op.getCode();
          }
          return String.format(Locale.ROOT, "%08x%024x", code, 0);
      }
  }