Source for gnu.javax.print.ipp.attribute.RequestedAttributes

   1: /* RequestedAttributes.java --
   2:    Copyright (C) 2006 Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: 
  39: package gnu.javax.print.ipp.attribute;
  40: 
  41: import gnu.java.lang.CPStringBuilder;
  42: 
  43: import java.util.ArrayList;
  44: import java.util.List;
  45: 
  46: import javax.print.attribute.Attribute;
  47: 
  48: /**
  49:  * <code>RequestedAttributes</code> specifies the requested
  50:  * attributes in an IPP request operation.
  51:  *
  52:  * @author Wolfgang Baer (WBaer@gmx.de)
  53:  */
  54: public final class RequestedAttributes implements Attribute
  55: {
  56:   private ArrayList<String> attributes;
  57: 
  58:   /**
  59:    * Creates a <code>RequestedAttributes</code> object with
  60:    * the initial value.
  61:    *
  62:    * @param value the string for the ipp name
  63:    *
  64:    * @exception NullPointerException if value is null
  65:    */
  66:   public RequestedAttributes(String value)
  67:   {
  68:     if (value == null)
  69:       throw new NullPointerException();
  70: 
  71:     attributes = new ArrayList<String>();
  72:     attributes.add(value);
  73:   }
  74: 
  75:   /**
  76:    * Adds the IPP name value to the set.
  77:    *
  78:    * @param value the string for the ipp name
  79:    */
  80:   public void addValue(String value)
  81:   {
  82:     attributes.add(value);
  83:   }
  84: 
  85:   /**
  86:    * Returns the values.
  87:    *
  88:    * @return The values as list.
  89:    */
  90:   public String[] getValues()
  91:   {
  92:     return attributes.toArray(new String[attributes.size()]);
  93:   }
  94: 
  95:   /**
  96:    * Returns category of this class.
  97:    *
  98:    * @return The class <code>DocumentFormat</code> itself.
  99:    */
 100:   public Class<? extends Attribute> getCategory()
 101:   {
 102:     return RequestedAttributes.class;
 103:   }
 104: 
 105:   /**
 106:    * Returns the name of this attribute.
 107:    *
 108:    * @return The name "requested-attributes".
 109:    */
 110:   public String getName()
 111:   {
 112:     return "requested-attributes";
 113:   }
 114: 
 115:   /**
 116:    * Returns the string representation for this object.
 117:    *
 118:    * @return The string representation.
 119:    */
 120:   public String toString()
 121:   {
 122:     CPStringBuilder b = new CPStringBuilder();
 123: 
 124:     if (attributes.size() > 0)
 125:       b.append(attributes.get(0));
 126: 
 127:     for (int i=1; i < attributes.size(); i++)
 128:       b.append(", " + attributes.get(i));
 129: 
 130:     return b.toString();
 131:   }
 132: }