/* JobSheetsSupported.java -- 
   Copyright (C) 2006 Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

GNU Classpath 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.  See the GNU
General Public License for more details.

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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.

Linking this library statically or dynamically with other modules is
making a combined work based on this library.  Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.

As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
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package gnu.javax.print.ipp.attribute.supported;

import gnu.javax.print.ipp.attribute.defaults.JobSheetsDefault;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.Locale;
import java.util.Set;

import javax.print.attribute.Attribute;
import javax.print.attribute.SupportedValuesAttribute;
import javax.print.attribute.TextSyntax;
import javax.print.attribute.standard.JobSheets;

/**
 * JobSheetsSupported attribute provides the supported values
 * of the job-sheets attribute.
 * 
 * @author Wolfgang Baer (WBaer@gmx.de)
 */
public final class JobSheetsSupported extends TextSyntax 
    implements SupportedValuesAttribute
{
  //a keyword/name based attribute in IPP 
  // can be extended by administrators
  // standard values are predefined
  
  /** No job sheet is the default */
  public static final JobSheetsDefault NONE = 
    new JobSheetsDefault("none", Locale.getDefault());
  
  /** A job sheet is the default */
  public static final JobSheetsDefault STANDARD = 
    new JobSheetsDefault("standard", Locale.getDefault());
  
  /**
   * Creates a <code>JobSheetsSupported</code> object with the 
   * given value and locale.
   *
   * @param value the value for this syntax
   * @param locale the locale to use, if <code>null</code> the default
   * locale is used.
   *
   * @throws NullPointerException if value is null
   */
  public JobSheetsSupported(String value, Locale locale)
  {
    super(value, locale);
  }
 
  /**
   * Returns category of this class.
   *
   * @return The class <code>JobSheetsSupported</code> itself.
   */
  public Class getCategory()
  {
    return JobSheetsSupported.class;
  }

  /**
   * Returns the name of this attribute.
   *
   * @return The name "job-sheets-supported".
   */
  public String getName()
  {
    return "job-sheets-supported";
  }
  
  /**
   * Returns the equally enum of the standard attribute class
   * of this SupportedValuesAttribute enum.
   * <p>May return null if no value exists in JPS API.</p>
   * 
   * @return The enum of the standard attribute class.
   */
  public JobSheets getAssociatedAttribute() 
  {
    if (this.equals(JobSheetsDefault.NONE))
      return JobSheets.NONE;
    if (this.equals(JobSheetsDefault.STANDARD))
      return JobSheets.STANDARD;
    
    return null;
  }
  
  /**
   * Constructs an array from a set of -supported attributes.
   * @param set set to process
   * @return The constructed array.
   * 
   * @see #getAssociatedAttribute()
   */
  public static JobSheets[] getAssociatedAttributeArray(Set set) 
  {
    JobSheetsSupported tmp;
    ArrayList result = new ArrayList();      
    Iterator it = set.iterator();
    int j = 0;
    while (it.hasNext())
      {
        tmp = (JobSheetsSupported) it.next();
        Attribute att = tmp.getAssociatedAttribute();
        if (att != null)
          result.add(att);
        j++;
      }            
    return (JobSheets[]) result.toArray(new JobSheets[result.size()]);
  }
  
}